A kind of Horizontal Well spacer interlayers Forecasting Methodology and deviceTechnical field
The present invention relates to clastic rock oil gas development technology field, more particularly to a kind of Horizontal Well spacer interlayers Forecasting MethodologyAnd device.
Background technology
The main clastic sedimentary rock such as including various sandstone, conglomerate, siltstone of clastic reservoir, is the most important storage of ChinaCollection channel type, is also one of main type of reservoir of world's oil gas field.Currently for example, the oil such as grand celebration, triumph, Liaohe River of ChinaField is mainly clastic reservoir；In the world boolean's glycerine field of famous Kuwait, Russia Sa Moteluoer oil fieldsIt is clastic reservoir.In oil and gas development collection, horizontal well application is relatively broad；Horizontal well is to be applied to clastic reservoirAdvanced technology technique in the middle of recovering the oil, horizontal well refers to hole angle and reaches or close to 90 °, and well bore creeps into one along horizontal directionThe well of measured length, well is long through the length of oil reservoir, the contact surface area of well and oil reservoir is considerably increased, so that the list of oil wellWell production is high, and the speed of production of oil well is fast, reduces the production time.
During clastic rock oil and gas development, the anisotropism of clastic reservoir is enhanced every the distribution of interlayer, be shadowRing profit and preserving intrastratal flow, control the key factor of remaining oil distribution.At present, it is main both at home and abroad to use individual well well logging recognitionWith reference between Geological Mode, and well phased Geologic modeling method characterize every interlayer the regularity of distribution, the former has certain subjectivityProperty, quantitative relationship effect is poor；The latter then more relies on algorithm, the characteristics of with realize more.Simultaneously as horizontal well is surveyedInstrument is widely different to be disposed vertically in the middle of horizontal positioned, with straight well during well, and both logging environment differences cause to be difficult toEvery the well log interpretation of interlayer, the research to Horizontal Well spacer interlayers Forecasting Methodology then more lacks horizontal well.It can be seen that, it is current to lackIt is few accurately to explain every interlayer and the method for portraying its spatial distribution.
The content of the invention
Embodiments of the invention provide a kind of Horizontal Well spacer interlayers Forecasting Methodology and device, to solve currently to lack essenceReally explain the problem every interlayer and the method for portraying its spatial distribution.
To reach above-mentioned purpose, the present invention is adopted the following technical scheme that：
A kind of Horizontal Well spacer interlayers Forecasting Methodology, including：
The core data in purpose survey region is obtained, and is determined to lead class of a well every interlayer according to the core dataType, distributing position and occurrence, and determine to lead level of a well every interlayer every the distributing position of interlayer and occurrence according to a well is led；
Lower limit standard strategy is responded every interlayer according to the different type for pre-setting, is explained using Logging Curves and is led eyeWell every interlayer type, and using dipmeter logging curve determine lead interface depth of a well every interlayer；
According to type and interface depth of a well every interlayer is led, the corresponding window of a well long, step-length and exploration are led in constantly adjustmentAngle so that determine that lead a well leads eye every the interface depth of interlayer with according to core data determination using dipmeter logging curveWell is corresponding every interlayer occurrence, it is determined that leading tendency and inclination angle of a well every interlayer；
Net horizontal section log response abnormal data is obtained, and horizontal well is determined according to net horizontal section log response abnormal dataEvery the scope and type of interlayer, according to horizontal well every interlayer depth resistivity data, the phase of shallow resistivity data and resistivity reservoirDetermine horizontal well every the position of interlayer relative level well well to variable quantity；
A well will be led on the section where the tendency of interlayer and inclination angle are changed to horizontal well path, to complete to lead a well every folderLayer matching every interlayer with horizontal well；
Predefine the creation data of water injection well and producing well and horizontal well every the scope of interlayer, type and horizontal well everyThe relation of the position of interlayer relative level well well, determines varying level well every the corresponding production feature of Distribution Pattern of Interlayer；
The creation data of the water injection well and producing well in purpose survey region is obtained, the water filling in purpose survey region is determinedThe production feature of well and producing well, according to lead a well every interlayer and horizontal well every interlayer matching result, by purpose survey regionThe production feature of interior water injection well and producing well and varying level well are matched every the corresponding production feature of Distribution Pattern of Interlayer,Determine the net horizontal section of water injection well in purpose survey region and producing well every interbed distribution.
Specifically, a well of leading includes shale, calcareous and calcium shale every the type of interlayer；Lead level of a well every interlayerIncluding in interlayer, layer, between sand body and in single sand body.
Specifically, lower limit standard strategy is responded every interlayer according to the different type for pre-setting, using Logging CurvesType of a well every interlayer is led in explanation, and determines to lead interface depth of a well every interlayer using dipmeter logging curve, including：
Lower limit standard strategy is responded every interlayer according to the different type for pre-setting, using leading natural gal of a well every interlayerHorse logging response character value, density log response characteristic value and formation resistivity logging response characteristic value are explained and lead a well every folderThe type of layer；Wherein, the different type for pre-setting includes different type every interlayer correspondence every interlayer response lower limit standard strategyGamma ray log response characteristic value span, the span and formation resistivity of density log response characteristic valueThe span of logging response character value；
Flex point of a well at the bottom interface of interlayer top is being led according to dipmeter logging curve, it is determined that leading a well every the interface of interlayerDepth.
Specifically, according to leading type and interface depth of a well every interlayer, constantly adjustment leads that the corresponding window of a well is long, step-lengthAnd search angle so that determine that lead a well determines every the interface depth of interlayer with according to the core data using dipmeter logging curveLead that a well is corresponding every interlayer occurrence, it is determined that lead tendency and inclination angle of a well every interlayer, including：
Stratigraphic dip polar plot is determined according to dipmeter logging curve；
The corresponding window of a well long, step-length and search angle are led in constantly adjustment so that determine to lead eye using stratigraphic dip polar plotWell every interlayer interface depth with determined according to the core data to lead a well corresponding every interlayer occurrence；
It is determined that leading azimuth frequency diagram and Schmidt polar plot of a well every interlayer, main peak side in the azimuth frequency diagram is countedTo as leading tendency and inclination angle of a well every interlayer.
Specifically, a well will be led on the section where the tendency of interlayer and inclination angle are changed to horizontal well path, to complete to leadEye well matching every interlayer with horizontal well every interlayer, including：
According to formula：A well will be led every the tendency of interlayer and inclinedAngle is changed to section where horizontal well path, with complete to lead a well every interlayer the matching every interlayer with horizontal well；Wherein, α isApparent dip；θ is true dip angle；ω is the angle between line of dip and true line of dip.
Specifically, predefine the creation data of water injection well and producing well and horizontal well every the scope of interlayer, type andHorizontal well determines varying level well every the corresponding production of Distribution Pattern of Interlayer every the relation of the position of interlayer relative level well wellFeature, including：
According to water injection well and the creation data of producing well, by perforation correspondence and effective response for water flood analysis, production curve featureResearch, it is determined that it is continuous every interlayer spread, it is semicontinuous every interlayer spread and discontinuous dynamic every the corresponding individual well production of interlayer spreadState response characteristic.
A kind of Horizontal Well spacer interlayers prediction meanss, including：
Core analysis unit, for obtaining the core data in purpose survey region, and determines according to the core dataA well is led every the type of interlayer, distributing position and occurrence, and determines to lead eye every the distributing position of interlayer and occurrence according to a well is ledLevel of the well every interlayer；
A well is led every sandwich type and interface depth determining unit, for being rung every interlayer according to the different type for pre-settingLower limit standard strategy is answered, is explained using Logging Curves and is led type of a well every interlayer, and determined using dipmeter logging curveLead interface depth of a well every interlayer；
Tendency and inclination angle determining unit of a well every interlayer are led, type and interface depth of a well every interlayer are led for basisThe corresponding window of a well long, step-length and search angle are led in degree, constantly adjustment so that determine to lead a well every interlayer using dipmeter logging curveInterface depth a well is corresponding every interlayer occurrence with leading of being determined according to the core data, it is determined that leading a well inclining every interlayerTo and inclination angle；
Horizontal well every interlayer information determination unit, for obtaining net horizontal section log response abnormal data, and according to levelWell section log response abnormal data determines scope and type of the horizontal well every interlayer, according to horizontal well every interlayer depth resistivity numberRelative variation according to, shallow resistivity data and resistivity reservoir determines horizontal well every the position of interlayer relative level well well；
Tendency and inclination angle converting unit, change to horizontal well path place for will lead a well every the tendency of interlayer and inclination angleOn section, with complete lead a well every interlayer the matching every interlayer with horizontal well；
Production characteristics determining unit, for predefining the creation data and horizontal well of water injection well and producing well every interlayerScope, type and horizontal well determine varying level well every interbed distribution every the relation of the position of interlayer relative level well wellThe corresponding production feature of pattern；
Net horizontal section is every interbed distribution predicting unit, the life for obtaining water injection well and producing well in purpose survey regionData are produced, the production feature of the water injection well and producing well in purpose survey region is determined, according to leading a well every interlayer and horizontal wellEvery the matching result of interlayer, by the production feature of the water injection well in purpose survey region and producing well and varying level well every interlayerThe corresponding production feature of distribution pattern is matched, determine the net horizontal section of water injection well in purpose survey region and producing well everyInterbed distribution.
Specifically, the well of leading in the core analysis unit includes shale, calcareous and calcium shale every the type of interlayer；LeadEye well includes interlayer every the level of interlayer, in layer, between sand body and in single sand body.
Additionally, a well is led every sandwich type and interface depth determining unit, specifically for：
Lower limit standard strategy is responded every interlayer according to the different type for pre-setting, using leading natural gal of a well every interlayerHorse logging response character value, density log response characteristic value and formation resistivity logging response characteristic value are explained and lead a well every folderThe type of layer；Wherein, the different type for pre-setting includes different type every interlayer correspondence every interlayer response lower limit standard strategyGamma ray log response characteristic value span, the span and formation resistivity of density log response characteristic valueThe span of logging response character value；
Flex point of a well at the bottom interface of interlayer top is being led according to dipmeter logging curve, it is determined that leading a well every the interface of interlayerDepth.
Additionally, tendency and inclination angle determining unit of a well every interlayer are led, specifically for：
Stratigraphic dip polar plot is determined according to dipmeter logging curve；
The corresponding window of a well long, step-length and search angle are led in constantly adjustment so that determine to lead eye using stratigraphic dip polar plotWell every interlayer interface depth with determined according to the core data to lead a well corresponding every interlayer occurrence；
It is determined that leading azimuth frequency diagram and Schmidt polar plot of a well every interlayer, main peak side in the azimuth frequency diagram is countedTo as leading tendency and inclination angle of a well every interlayer.
In addition, tendency and inclination angle converting unit, specifically for：
According to formula：A well will be led every the tendency of interlayer and inclinedAngle is changed to section where horizontal well path, with complete to lead a well every interlayer the matching every interlayer with horizontal well；Wherein, α isApparent dip；θ is true dip angle；ω is the angle between line of dip and true line of dip.
In addition, production characteristics determining unit, specifically for：
According to water injection well and the creation data of producing well, by perforation correspondence and effective response for water flood analysis, production curve featureResearch, it is determined that it is continuous every interlayer spread, it is semicontinuous every interlayer spread and discontinuous dynamic every the corresponding individual well production of interlayer spreadState response characteristic.
A kind of Horizontal Well spacer interlayers Forecasting Methodology provided in an embodiment of the present invention and device, obtain purpose research firstCore data in region, and determine to lead a well every the type of interlayer, distributing position and occurrence, and root according to the core dataDetermine to lead level of a well every interlayer every the distributing position of interlayer and occurrence according to a well is led；According to the different type for pre-setting everyInterlayer responds lower limit standard strategy, is explained using Logging Curves and leads type of a well every interlayer, and bent using dipmeter loggingLine determines to lead interface depth of a well every interlayer；According to type and interface depth of a well every interlayer is led, a well is led in constantly adjustmentCorresponding window is long, step-length and search angle so that determine to lead interface depth and basis of a well every interlayer using dipmeter logging curveWhat the core data determined lead, and a well is corresponding every interlayer occurrence, it is determined that leading tendency and inclination angle of a well every interlayer；Obtain waterHorizontal well section log response abnormal data, and according to net horizontal section log response abnormal data determine horizontal well every interlayer scope andType, the relative variation according to horizontal well every interlayer depth resistivity data, shallow resistivity data and resistivity reservoir determines waterHorizontal well is every the position of interlayer relative level well well；A well will be led to be changed to horizontal well path place every the tendency of interlayer and inclination angleOn section, with complete lead a well every interlayer the matching every interlayer with horizontal well；Predefine the production number of water injection well and producing wellAccording to horizontal well every the scope of interlayer, type and horizontal well every the position of interlayer relative level well well relation, it is determined that notSame level well is every the corresponding production feature of Distribution Pattern of Interlayer；Obtain the production of the water injection well and producing well in purpose survey regionData, determine the production feature of the water injection well and producing well in purpose survey region, according to lead a well every interlayer and horizontal well everyThe matching result of interlayer, by the production feature of the water injection well in purpose survey region and producing well and varying level well every interlayer pointThe corresponding production feature of cloth pattern is matched, and determines the net horizontal section of water injection well in purpose survey region and producing well every folderLayer distribution.The present invention can be solved the problems, such as currently to lack and accurately explained every interlayer and the method for portraying its spatial distribution,Data utilizes unification, the problem of Forecasting Methodology simplification during prior art can be improved, between can overcoming Horizontal WellEvery the low shortcoming of interbed distribution precision of prediction, the precision of Horizontal Well spacer interlayers forecast of distribution is improve.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existingThe accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only thisSome embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used alsoOther accompanying drawings are obtained with according to these accompanying drawings.
Fig. 1 is a kind of flow chart one of Horizontal Well spacer interlayers Forecasting Methodology provided in an embodiment of the present invention；
Fig. 2 is a kind of flowchart 2 of Horizontal Well spacer interlayers Forecasting Methodology provided in an embodiment of the present invention；
Fig. 3 is the HD4-52 wells in the embodiment of the present invention every interlayer dipmeter logging curve processing result map；
Fig. 4 is the HD112H wells horizontal segment in the embodiment of the present invention every interlayer interpretation results figure；
Fig. 5 leads a well and matches result map with Horizontal Well spacer interlayers for the HD112H wells in the embodiment of the present invention；
Fig. 6 is the HD112H water flooding curves and HD4-52H production curve figures in the embodiment of the present invention；
Fig. 7 is that the HD112-HD112H-HD4-52 wells in the embodiment of the present invention predict result map every interlayer；
Fig. 8 is a kind of structural representation of Horizontal Well spacer interlayers prediction meanss provided in an embodiment of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, completeSite preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based onEmbodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not madeEmbodiment, belongs to the scope of protection of the invention.
Realize it is of the invention during, inventor find prior art development and prior art Horizontal WellSpacer interlayers research is as follows：
Existing level well well spacer interlayers Forecasting Methodology has followed the conventional method that clastic rock is predicted every interlayer, i.e., only with oftenRule well log interpretation individual well is every interlayer, the continuous layered distribution of well spacer interlayers.But the well spacing in horizontal well production area is (generally higher than500m) it is typically much deeper than the well spacing (generally less than 200m) of conventional straight well oil-producing region, the Forecasting Methodology and concept of this simplificationThe distribution pattern of change obviously cannot meet the actual demand in oil field.
Although having carried out the well spacer interlayers forecasting research of straight well both at home and abroad, achieve some impressive progresses and intoReally.But also in the starting stage effective methods and techniques, and inclination angle are not formed still to the prediction of Horizontal Well spacer interlayersLog, horizontal wellbore logging curve, horizontal well creation data are not used also in the middle of the prediction of well spacer interlayers.How rock is utilizedMany data prediction level well well spacer interlayers such as the heart, conventional logging, dipmeter logging, horizontal wellbore logging and oil-water well creation data pointCloth is the key problem for being badly in need of solving.
Prior art related to the present invention mainly includes every interlayer individual well well logging recognition combination Geological Mode and wellBetween two aspects of phased Geologic modeling：
Prior art one：With rock core-log well as foundation, to classifying every interlayer, the well logging recognition every interlayer is establishedStandard, and individual well longitudinal direction has been carried out every interlayer identification, while the essential characteristic and the origin cause of formation every interlayer are studied, for the well every interlayerBetween forecast of distribution (Shu Qinglin petroleum journals, 2006；What fragrant perfume offshore oil, 2012；Han Rubing, waits oil explorations and opensHair, 2014).By to prototype model of appearing, rock core and well-log information comprehensive analysis, based on sand body configuration, study in reservoirPortion is every sandwich type, formation mechenism and distribution pattern, form, rule using the different parfacies of layer interfaces analytic approach research every interlayerMould and its stacked pattern, carry out forecast of distribution between well (Lynds R.AAPG Bulletin, 2006；WeiZhang.Petroleum Science, 2008；Print forest, waits Petroleum finances, 2013；Li Haiyan, waits oil explorationsWith exploitation, 2015).
The shortcoming of prior art one：
In clastic rock every mainly conventional logging recognition methods is used in the identification of interlayer, i.e., added by core observationLog modeling explain individual well every interlayer, but due to some positions development it is smaller every thickness of interlayer, Logging Curves hang downAccuracy of identification is not reached to resolution ratio, the method is recognizing there is certain error every sandwich type, thickness.To appear, rock coreWith well logging based on study geology distribution pattern every interlayer, generally to every interlayer form, scale, the research precision of distribution patternNot enough, the geology distribution pattern of summary has larger artificial subjectivity, and the prediction of well spacer interlayers has uncertainty higher.
Prior art two：Electrical, the physical property recognition mode every interlayer are set up, knowledge of the whole district every interlayer is carried out using the patternOther and across comparison.On this basis, respectively with Decided modelling, the control of physical property lower limit, the prediction of the method such as condition simulation everyBe distributed between the well of interlayer, set up every interlayer three-dimensional distribution model (Zhang Guoyi waits science and technology Leaders, 2010).Entered using gray theoryRow individual well is recognized every interlayer, on this basis, with reference to made ground measurement, to carrying out quantitatively characterizing every interlayer.With fixed every interlayerGauge mould is constraints, and using the phased method being combined with stochastic modeling, foundation can reflect be distributed spy every mezzanine spaceThe three-dimensional geological model levied (Sun Tianjian waits Petroleum finances, 2014).
The shortcoming of prior art two：
Development polytype is every interlayer in clastic reservoir, and different type is big every the form of interlayer, scale difference, spaceComplex distribution is very big, it is necessary to substantial amounts of made ground investigation and dense well pattern data are set up every the Quantitative anatomy research difficulty of interlayerEvery the quantitative relationship of interlayer.But material resource condition, hydrodynamic condition that made ground is deposited with Gu etc. has larger difference, directly willWhat made ground observation was obtained is used for there is larger uncertainty among ancient deposition every interlayer scale.Meanwhile, three-dimensional geological is builtThe method of mould, with multiple results, last selection has larger artificial subjectivity.During being predicted every interlayer, do not makeWith dipmeter logging curve, horizontal wellbore logging curve, horizontal well creation data, technical basis are more single, and lack to horizontal wellEvery interlayer identification and the effective ways of inter-wells predicting.
In order to overcome above-mentioned problem of the prior art, as shown in figure 1, the embodiment of the present invention provides a kind of Horizontal Well intervalInterlayer Forecasting Methodology, including：
Step 101, the core data obtained in purpose survey region, and determined to lead a well every folder according to the core dataThe type of layer, distributing position and occurrence, and determine to lead a well every interlayer every the distributing position of interlayer and occurrence according to a well is ledLevel.
The different type that step 102, basis pre-set responds lower limit standard strategy every interlayer, using Logging CurvesType of a well every interlayer is led in explanation, and determines to lead interface depth of a well every interlayer using dipmeter logging curve.
Step 103, according to leading type and interface depth of a well every interlayer, constantly adjustment leads that the corresponding window of a well is long, stepLong and search angle so that lead a well using the determination of dipmeter logging curve true with according to the core data every the interface depth of interlayerIt is fixed to lead that a well is corresponding every interlayer occurrence, it is determined that leading tendency and inclination angle of a well every interlayer.
Step 104, acquisition net horizontal section log response abnormal data, and it is true according to net horizontal section log response abnormal dataScope and type of the horizontal well every interlayer are determined, according to horizontal well every interlayer depth resistivity data, shallow resistivity data and oil reservoir electricityThe relative variation of resistance rate determines horizontal well every the position of interlayer relative level well well.
Step 105, a well will be led changed to section where horizontal well path every the tendency of interlayer and inclination angle, to complete to leadEye well matching every interlayer with horizontal well every interlayer.
Step 106, the scope of creation data and horizontal well every interlayer for predefining water injection well and producing well, type andHorizontal well determines varying level well every the corresponding production of Distribution Pattern of Interlayer every the relation of the position of interlayer relative level well wellFeature.
The creation data of step 107, the water injection well and producing well obtained in purpose survey region, determines purpose survey regionThe production feature of interior water injection well and producing well, according to lead a well every interlayer and horizontal well every interlayer matching result, by purposeThe production feature of water injection well and producing well in survey region and varying level well are every the corresponding production feature of Distribution Pattern of InterlayerMatched, determine the net horizontal section of water injection well in purpose survey region and producing well every interbed distribution.
A kind of Horizontal Well spacer interlayers Forecasting Methodology provided in an embodiment of the present invention, obtains in purpose survey region firstCore data, and determine to lead a well every the type of interlayer, distributing position and occurrence according to the core data, and according to leading eyeWell determines to lead level of a well every interlayer every the distributing position of interlayer and occurrence；Rung every interlayer according to the different type for pre-settingLower limit standard strategy is answered, is explained using Logging Curves and is led type of a well every interlayer, and determined using dipmeter logging curveLead interface depth of a well every interlayer；According to type and interface depth of a well every interlayer is led, it is corresponding that a well is led in continuous adjustmentWindow is long, step-length and search angle so that using dipmeter logging curve determine to lead a well every interlayer interface depth with according to the rockCalculation leads that a well is corresponding every interlayer occurrence according to what is determined, it is determined that leading tendency and inclination angle of a well every interlayer；Obtain net horizontal sectionLog response abnormal data, and scope and type of the horizontal well every interlayer are determined according to net horizontal section log response abnormal data,According to horizontal well every the relative variation of interlayer depth resistivity data, shallow resistivity data and resistivity reservoir determine horizontal well everyThe position of interlayer relative level well well；Well section where the tendency of interlayer and inclination angle are changed to horizontal well path will be ledOn, with complete lead a well every interlayer the matching every interlayer with horizontal well；Predefine the creation data of water injection well and producing well withHorizontal well, every the relation of the position of interlayer relative level well well, determines different water every the scope of interlayer, type and horizontal wellHorizontal well is every the corresponding production feature of Distribution Pattern of Interlayer；Obtain the production number of the water injection well and producing well in purpose survey regionAccording to the production feature of the water injection well and producing well in purpose survey region being determined, according to leading a well every interlayer and horizontal well every folderThe matching result of layer, by the production feature of the water injection well in purpose survey region and producing well and varying level well every interbed distributionThe corresponding production feature of pattern is matched, and determines the net horizontal section of water injection well in purpose survey region and producing well every interlayerDistribution.The present invention can be solved the problems, such as currently to lack and accurately explained every interlayer and the method for portraying its spatial distribution, canWith data in improving prior art using unification, the problem of Forecasting Methodology simplification, Horizontal Well can be overcome to be spacedThe low shortcoming of interbed distribution precision of prediction, improves the precision of Horizontal Well spacer interlayers forecast of distribution.
In order that those skilled in the art is better understood by the present invention, a more detailed embodiment is set forth below,.It should be evident that drawings in the following description are only specific embodiment of the invention, described embodiment is only this hairBright a part of embodiment, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not havingThe every other embodiment obtained under the premise of creative work is made, the scope of the present invention is belonged to.
As shown in Fig. 2 the embodiment of the present invention provides a kind of Horizontal Well spacer interlayers Forecasting Methodology, including：
Step 201, the core data obtained in purpose survey region, and determined to lead a well every folder according to the core dataThe type of layer, distributing position and occurrence, and determine to lead a well every interlayer every the distributing position of interlayer and occurrence according to a well is ledLevel.
Specifically, a well of leading includes shale, calcareous and calcium shale every the type of interlayer；Lead level of a well every interlayerIncluding in interlayer, layer, between sand body and in single sand body.
Herein, the principle of step 201 is directed to research area's geological condition, and different its lithology every interlayer are different, drop hydrochloric acidReactions vary.
Step 202, lower limit standard strategy is responded every interlayer according to the different type that pre-sets, using leading a well every interlayerGamma ray log response characteristic value, density log response characteristic value and formation resistivity logging response characteristic value explain and leadType of the eye well every interlayer.
Wherein, the different type for pre-setting includes that different type is corresponding every interlayer every interlayer response lower limit standard strategyThe span of gamma ray log response characteristic value, the span of density log response characteristic value and formation resistivity are surveyedThe span of well response characteristic value.
Step 203, flex point of a well at the bottom interface of interlayer top is being led according to dipmeter logging curve, it is determined that leading a well every folderThe interface depth of layer.
Logging Curves are obvious every interlayer response characteristic to different type.According to different type every interlayer log response,By the method for Core-Calibrated Logging, natural gamma GR, density DEN, formation resistivity RT of the class of rock core well three every interlayer are readLogging response character value, set up different type every interlayer log response lower limit standard.It is possible thereby to according to Logging CurvesTo recognize the type every interlayer, but most thin only have several centimeters every interlayer, and Logging Curves cannot be accurately judged every interlayerUpper and lower interface.Compared to the sampling interval of Logging Curves 0.125m, dipmeter logging curve is 0.003m, and longitudinal frame canUp to 1cm, at the top bottom interface of interlayer, there is obvious flex point (resistivity becomes suddenly big point) in dipmeter logging curve, byThis can exactly recognize the upper and lower interface every interlayer.
Step 204, stratigraphic dip polar plot is determined according to dipmeter logging curve.
The corresponding window of a well long, step-length and search angle are led in step 205, constantly adjustment so that utilize stratigraphic dip polar plotIt is determined that lead a well every interlayer interface depth with determined according to the core data to lead a well corresponding every interlayer occurrence.
Azimuth frequency diagram and Schmidt polar plot of a well every interlayer are led in step 206, determination, count the azimuth frequency diagramMiddle main peak direction, as leading tendency and inclination angle of a well every interlayer.
Dipmeter logging curve can obtain stratigraphic dip polar plot by treatment, can reflect well subsurface formations and everyInterlayer occurrence information.Large change is often there is in small depth bounds every the occurrence of interlayer, it is right using short window correlation longThan method, by constantly adjustment, preferred interpretation processing parameter can obtain the azimuth frequency diagram and Schmidt's vector every interlayer after treatmentFigure, main peak direction is the tendency every interlayer and inclination angle in the azimuth frequency diagram of statistics.
Step 207, acquisition net horizontal section log response abnormal data, and it is true according to net horizontal section log response abnormal dataScope and type of the horizontal well every interlayer are determined, according to horizontal well every interlayer depth resistivity data, shallow resistivity data and oil reservoir electricityThe relative variation of resistance rate determines horizontal well every the position of interlayer relative level well well.
The logging environment of horizontal well is different from straight well, but both have similar log response at the position developed every interlayerFeature.Oil reservoirs of horizontal well Duan Shen, shallow resistivity curve are essentially coincided, and sensing is surveyed in horizontal well well diverse location every interlayerThe response difference of well depth, shallow resistivity.
Step 208, a well will be led changed to section where horizontal well path every the tendency of interlayer and inclination angle, to complete to leadEye well matching every interlayer with horizontal well every interlayer.
It is in different directions inconsistent every the occurrence of interlayer, dipmeter logging pickup is truly inclined to and is inclined every interlayerAngle, in order to realize that lead a well is combined the distribution of pre- well logging spacer interlayers, it is necessary to straight well is changed every interlayer occurrence with horizontal wellOnto section where horizontal well track, with reach straight well with horizontal well matching every interlayer occurrence.
Herein, specifically can be according to formula (1)：A well will be ledOn the section where the tendency of interlayer and inclination angle are changed to horizontal well path, to complete to lead a well every interlayer and horizontal well every interlayerMatching；Wherein, α is apparent dip；θ is true dip angle；ω is the angle between line of dip and true line of dip.
Extend trend and horizontal well every interlayer interpretation results every interlayer occurrence according to a well is led, carry out continuous every between interlayer wellJournal of Sex Research.
Step 209, the creation data according to water injection well and producing well, are analyzed by perforation correspondence and effective response for water flood, producedCurvilinear characteristic is studied, it is determined that it is continuous every interlayer spread, it is semicontinuous every interlayer spread and discontinuous every the corresponding list of interlayer spreadWell Production development response characteristic.
It should be noted that difference influences different every interlayer areal extent on Production Wells situation, by perforation correspondenceWith effective response for water flood analysis, production curve properties study, continuous, semicontinuous, discontinuous three class can be summarized every interlayer areal extentCorresponding individual well Production development response characteristic.It is possible thereby to use the anti-distribution characteristics pushed away every interlayer of oil-water well creation data.
The creation data of step 210, the water injection well and producing well obtained in purpose survey region, determines purpose survey regionThe production feature of interior water injection well and producing well, according to lead a well every interlayer and horizontal well every interlayer matching result, by purposeThe production feature of water injection well and producing well in survey region and varying level well are every the corresponding production feature of Distribution Pattern of InterlayerMatched, determine the net horizontal section of water injection well in purpose survey region and producing well every interbed distribution.
Herein, it is right that the individual well Production development response characteristic enumerated in the production feature of analysis individual well, with step 209 is carried outThan, can find the production feature classification for meeting the most, the anti-continuity pushed away every interbed distribution, comprehensively lead a well and horizontal well everyThe result of interlayer matching, completes Horizontal Well spacer interlayers forecast of distribution.
In order that above-mentioned steps 201 are clearer to step 210, a specific example is set forth below：
By above-mentioned steps 201 to step 210 to the " straight well-level of Tarim Basin Hadexun oilfield Donghe SandstoneThe short section HD112-HD112H-HD4-52 of well-straight well " carries out Horizontal Well spacer interlayers prediction, and wherein HD112H is water fillingWell, HD112 is a well of leading of HD112H, HD4-52H is producing well, and HD4-52 is that HD4-52H leads a well.
1. Tarim Basin Hadexun oilfield Donghe Sandstone HD112 well 5089.69-5104.05m well sections be have chosen as quiltProcess object, the well section is bored and meets 5 substratums, wherein 1 substratum is bored meets 1 sand body, 2 substratums are bored meets 2 sand bodies；While also HD4-52 well 5081.5-5091.17m well sections, the well section is bored and meets 4 substratums, wherein 1 substratum is bored meets 1 sand body, 2 substratums are bored meets 2 sandBody.
For research area's geological condition, according to core observation, every interbed distribution position and occurrence, the class every interlayer is determinedType and level, research separate interlayer and there are shale, calcareous and calcium shale three types, and shale is celadon mud every interlayer lithologyRock, argillaceous siltstoue, shale packsand, fill a large amount of shales between rock particles；Calcareous is that canescence is calcareous every interlayer lithologySiltstone, calcareous packsand, its calcareous content are high, and part drop hydrochloric acid reaction is violent；Calcium shale is by calcareous glue every interlayer lithologyThe mud stone of knot, siltstone containing mud and packsand, rock arrangement are fine and close.Research separates interlayer to be included between interlayer, sand body and single sand bodyInterior three levels.Layer spacer interlayers are present in substratum interface and occurrence is closely parallel；Sand body spacer interlayers are present in substratum in layerThe interface that interior single sand body is stacked with single sand body, occurrence is inclined；In single sand body single sand body inside and occurrence inclination are located at every interlayer.
2. by the method for Core-Calibrated Logging, different type is set up every interlayer log response lower limit standard.Shale is every folderLayer is presented natural gamma numerical value (being more than 38API) higher, density value (2.38~2.58g/ higher on Logging CurvesCm3), the feature of resistivity value of a relatively high (being more than 0.6 Ω m)；It is calcareous that nature is presented on Logging Curves every interlayerGamma value relatively low (being less than 38API), density value (being more than 2.48g/cm3) high, the feature of resistivity value (being more than 0.9 Ω m) high；Calcium shale is presented natural gamma value relatively low (less than 38API) every interlayer on Logging Curves, density value is relatively low (is less than2.48g/cm3), the feature of resistivity (being more than 0.7 Ω m) higher.Using natural gamma GR, density DEN, formation resistivity RTLogging response character value and dipmeter logging curve in the flex point at the bottom interface of interlayer top, explain H112 and HD4-52 every interlayerInterface depth and type (as shown in following table 1HD112 and HD4-52 every interlayer interpretation results table).
Table 1：
3. by constantly adjustment, final preferred interpretation process parameter can, 0.02m step-lengths long for 0.2m windows, 30 degree of explorationsAngle, treatment HD112 and the dipmeter logging curve of the well section of HD4-52 mesh, count the azimuth frequency diagram and Schmidt's vector every interlayerThe main peak direction of figure determines the occurrence (table 1) every interlayer, and Fig. 3 is HD4-52 individual wells every interlayer dipmeter logging curve processing achievementFigure, the wherein less possibility continuously distributed every between interlayer well in inclination angle is larger, and larger continuously distributed every between interlayer well in inclination angle canEnergy property is smaller, but specific continuity degree will also be studied with reference to horizontal well every interlayer.
4. Fig. 4 is HD112H wells horizontal segment every interlayer interpretation results figure.Shale is anti-on horizontal wellbore logging curve every interlayerReflect significantly increase for gamma ray curve numerical value, interval transit time curve numerical value it is relatively low；It is calcareous to be then reflected as natural gamma every interlayerCurve numerical value is substantially reduced, interval transit time curve numerical value is low；Calcium shale is reflected as natural gamma between shale every interlayer every interlayerAnd it is calcareous between interlayer, interval transit time curve numerical value it is higher.When depth, shallow resistivity have increasing by a relatively large margin relative to oil reservoirWhen big and numerical value is close, developed at well every interlayer；When depth, shallow resistivity is with respect to oil reservoir increase and deep resistivity is more than shallow electricityDuring resistance rate, more nearby developed in well every interlayer；When deep resistivity is with respect to the increase of resistivity reservoir amplitude, but shallow resistivity phaseWhen being basically unchanged to oil reservoir, remotely developed in well every interlayer.
According to horizontal segment log, HD112H well 5220-5260m natural gammas and resistivity curve have obvious exceptionValue, reflects that it bores the breccia section for meeting Donghe Sandstone top, and horizontal well enters the Donghe Sandstone of overall more homogeneous from 5260mSection, the exception on natural gamma and sound wave curve can reflect type and the position every interlayer, while deep resistivity and oil reservoir electricityResistance rate relative value is larger, is responded on shallow resistivity not substantially, illustrates to be located at well remote position every interlayer, thus may be usedA shale in the range of well 0.5m is picked up at 5260~5385m every interlayer, one is picked up at 5275~5310mApart from the calcareous every interlayer of well 0.5m or so, 5385~5615m pick up one outside well 0.5m scopes it is calcareous everyInterlayer, is connected with the shale of 5260~5385m every interlayer, and one is identified at 5440~5615m apart from well 0.5m scopesOuter shale is every interlayer.Due to the detection feature of horizontal wellbore logging curve, be only capable of recognizing within investigative range every interlayer, otherPosition is not developed not necessarily, and be above investigative range and fail identification, this be accomplished by and lead a well carry out every interlayerWith studying.
5. Fig. 5 leads a well and matches result map with Horizontal Well spacer interlayers for HD112H wells.It is small that horizontal well HD112H bores chance 1The 1-3 sand bodies of layer and 2-2 sand bodies, the 2-3 sand bodies of 2 substratums, a corresponding well HD112 projection orientation of leading is 22 °, using formula(1) occurrence conversion is carried out, first shale is 22 ° of 0.5 ° of ∠ (tendency ∠ inclination angles) every the occurrence that interlayer projects to horizontal segment, theTwo shales every interlayer be 22 ° of 0.34 ° of ∠, the 3rd it is calcareous every interlayer be 22 ° of 0.26 ° of ∠, these three every the inclination angle of interlayer allVery little.Matched every interlayer by with net horizontal section, mud of first shale every 5440~5615m of interlayer and HD112H well sectionsMatter is connected every interlayer, and second shale sand body spacer interlayers is connected with the shale of 5260~5385m of HD112H well sections every interlayer, theThree calcareous calcareous being connected every interlayer every interlayer and 5275~5310m of HD112H well sections, but due to the part after 5310mNot in investigative range, do not identify corresponding every interlayer, but do not represent it and do not exist, this is accomplished by dynamic data to enterOne step research.
6. Fig. 6 is HD112H water flooding curves and HD4-52H production curve figures.In research area, perforation correspondence continuous every interlayerWhen effective response for water flood, the speed that takes effect of tracer, now producing well be presented that water-free oil production period is short, after water breakthrough moisture content it is quick onRise, produce the feature that liquid rises daily；Do not taken effect when perforation is not to correspondence, now producing well presentation water-free oil production period is more long, dayProduce the feature that liquid is gradually reduced.Semicontinuous every interlayer, no matter whether perforation corresponds to, and effective response for water flood can be presented on tracer testAnd the slow feature that takes effect, producing well is presented has certain water-free oil production period, and moisture content grows steadily after water breakthrough, daily outputThe feature of liquid stabilization.Discontinuous every interlayer, no matter whether perforation corresponds to, and effective response for water flood can be presented on tracer test and take effectThe very slow feature of speed.
The HD112H wells metaideophone of in April, 2008 turns into water injection well, penetrates out 5339.42-5624.22m well sections, the i.e. 2-2 of 2 substratumsWith 2-3 sand bodies, HD4-52H penetrates out 2-2 the and 2-3 sand bodies of 5195-5498m well sections, i.e. 2 substratums in May, 2009, two mouthfuls of wells itBetween perforation layer position correspondence, location of water injection is less than oil recovery position, the feature of " low note height adopt " is presented.HD112H was in November 26 in 2010Day tracer is delivered, HD4-52H show that take effect speed in there is tracer after 276 days, and up to 3.84m/d, well operation isWater breakthrough, and the rising of initial stage moisture content is quickly, and 55% is risen to from May, 2009 to August moisture content from 27.9%, produces the liquid initial stage dailyAlso the feature of rising is presented.
7. Fig. 7 is that HD112-HD112H-HD4-52 wells predict result map every interlayer.Production feature meets " perforation aboveDuring to correspondence, the speed that takes effect (be more than 3.5m/d) of tracer, producing well is presented that water-free oil production period is short, after water breakthroughThe feature that moisture content rapid increase, daily output liquid rise " illustrates that injection water is advanced by leaps and bounds along layer, and sand body between wells are connective preferably.Comprehensively leadEye well and horizontal well every the result that interlayer match can be seen that interlayer and sand body spacer interlayers continuity is good, expanded range greatly, singlyIt is discontinuous every interlayer inside sand body, injection water can be effectively held, it is not flowed downward under gravity, can also hinderOnly profit slows down the speed that takes effect in the mutual channelling of small interlayer.
HD112H wells are in 2 months 2009 injection rates from 170m3Drop to 120m3, later in August, 2010 (18 altogetherMonth) go back up to 150m3, stabilization is kept afterwards；On HD4-52H wells then it is corresponding show as from the moisture content of in November, 2009 from50% drops to 37%, and in April, 2011 (altogether 17 months), moisture content rose to 54% later, stablizes left 60% afterwardsThe right side, both time intervals are 9 months, and the time consistency taken effect with tracer illustrates that profit is smooth in interflow and does not haveGeneration channelling, the production measure change of water injection well can be reflected on producing well, and this represents interlayer and sand body spacer interlayers are continuousProperty is good, discontinuous every interlayer inside single sand body.Predicting the outcome before demonstrating, between illustrating the Horizontal Well of many Information integrationsEvery interlayer Forecasting Methodology high precision, production needs are disclosure satisfy that.
It can be seen that, by above-mentioned instantiation, this have the advantage that：
Method of the characterized systematically every interlayer static state geologic feature is creatively proposed, using rock core, conventional logging, inclination angleWell-log information carries out type every interlayer, level, individual well and explains and occurrence pickup, effectively improves static geologic feature to levelThe directive function of well well spacer interlayers forecast of distribution.Based on rock core information, differ according to every interlayer lithology, drip the anti-of hydrochloric acidReflect differ, the difference of distributing position and thickness, carried out leading division of a well every sandwich type and level, solve existing methodIn there was only type and rare level every interlayer, it is impossible to for instructing the shortcoming every interbed distribution prediction；Dipmeter logging curve longitudinal directionResolution ratio determines the method that type, dipmeter logging curve delimit face up to 1cm using Logging Curves, and explanation leads a well every folderThe type of layer and position, solve in existing method because conventional logging resolution ratio is too low, it is impossible to accurately identify thickness compared with septulumThe shortcoming of interlayer upper and lower interface；Dipmeter logging curve can obtain stratigraphic dip polar plot by treatment, can reflect wellEvery the occurrence of interlayer, by continuous preferred process parameter, pickup leads tendency and inclination angle of a well every interlayer, compensate for existing methodIn characterize not enough shortcoming every mezzanine space occurrence.The present invention improves the static geology sign precision every interlayer, disclosure satisfy thatProduction needs.
Creatively propose horizontal well to be recognized every interlayer and lead the method that a well is matched with horizontal well every interlayer, can makeThe type every interlayer and position with horizontal wellbore logging curve Direct Recognition, effectively compensate for horizontal wellbore logging data and are not used for levelSection is every interlayer identification and the deficiency of Horizontal Well spacer interlayers forecast of distribution.Horizontal well with lead a well at the position developed every interlayerWith similar logging response character, it is possible to use natural gamma and sound wave curve response abnormality carry out interpretation level well every interlayerScope and type, solve the shortcoming that horizontal well in existing method cannot carry out being explained every interlayer；Every interlayer in horizontal well wellDiverse location is deep to induction logging, shallow resistivity response is different, using the phase every interlayer deep and shallow resistivity and resistivity reservoirTo variable quantity identification every position of the interlayer with respect to well, method of the horizontal well every mezzanine space location recognition is established；By leadingEye well is changed every the occurrence of interlayer, and trend and horizontal well are extended every interlayer interpretation results every interlayer occurrence based on a well is led, and is carried outThe continuous Journal of Sex Research every between interlayer well, it is proposed that lead the method that a well is matched with horizontal well every interlayer.The present invention proposes a set of waterThe method that horizontal well is explained every interlayer, the need for disclosure satisfy that production.
Creatively propose the dynamic characterization method every interlayer, using oil-water well creation data it is counter push away every interlayer pointCloth, improves the confidence level of Horizontal Well spacer interlayers prediction.The situation of taking effect is adopted using the corresponding relation and note of perforation layer position, is groundStudy carefully the spread of water injection well and producing well well spacer interlayers, compensate for note in existing method and adopt correspondence being only used for sand body company with taking effect propertyThe general character is evaluated, and is not used for the deficiency of well spacer interlayers forecast of distribution；Summarize moisture content, daily output liquid curvilinear motion and every interlayer exhibitionThe relation of cloth, establishes the different methods for producing feature every the corresponding oil-water well of Distribution Pattern of Interlayer, in compensate for existing methodProduction curve is difficult to use in the deficiency of prediction level well well spacer interlayers distribution.
The present invention proposes a set of pre- every the dynamic characterization thinking of interlayer and the Horizontal Well spacer interlayers of many Information integrationsSurvey method, can all kinds of data of integrated application to greatest extent, reduce the uncertainty in the middle of interlayer inter-wells predicting so that pre-The result of survey is more reasonable, can be used in the middle of production practices.
Corresponding to the embodiment of the method described in above-mentioned Fig. 1 and Fig. 2, as shown in figure 8, the embodiment of the present invention provides a kind of levelWell well spacer interlayers prediction meanss, including：
Core analysis unit 301 is for obtaining the core data in purpose survey region and true according to the core dataSurely a well is led every the type of interlayer, distributing position and occurrence, and determines to lead every the distributing position of interlayer and occurrence according to a well is ledLevel of the eye well every interlayer.
A well is led every sandwich type and interface depth determining unit 302, for according to the different type for pre-setting every folderLayer response lower limit standard strategy, is explained using Logging Curves and leads type of a well every interlayer, and utilize dipmeter logging curveIt is determined that leading interface depth of a well every interlayer.
Tendency and inclination angle determining unit 303 of a well every interlayer are led, type and interface of a well every interlayer are led for basisThe corresponding window of a well long, step-length and search angle are led in depth, constantly adjustment so that determine to lead a well every folder using dipmeter logging curveThe interface depth of layer with determined according to the core data to lead a well corresponding every interlayer occurrence, it is determined that leading a well every interlayerTendency and inclination angle.
Horizontal well every interlayer information determination unit 304, for obtaining net horizontal section log response abnormal data, and according to waterHorizontal well section log response abnormal data determines scope and type of the horizontal well every interlayer, according to horizontal well every interlayer depth resistivity numberRelative variation according to, shallow resistivity data and resistivity reservoir determines horizontal well every the position of interlayer relative level well well.
Tendency and inclination angle converting unit 305, change to horizontal well path for will lead a well every the tendency of interlayer and inclination angleOn the section of place, with complete lead a well every interlayer the matching every interlayer with horizontal well.
Production characteristics determining unit 306, for predefining the creation data and horizontal well of water injection well and producing well every folderScope, type and the horizontal well of layer determine varying level well every interlayer every the relation of the position of interlayer relative level well wellThe corresponding production feature of distribution pattern.
Net horizontal section every interbed distribution predicting unit 307, for obtaining water injection well and producing well in purpose survey regionCreation data, the production feature of the water injection well and producing well in purpose survey region is determined, according to leading a well every interlayer and waterHorizontal well every interlayer matching result, by the production feature of the water injection well in purpose survey region and producing well and varying level well everyThe corresponding production feature of Distribution Pattern of Interlayer is matched, and determines the horizontal well of the water injection well and producing well in purpose survey regionSection is every interbed distribution.
Specifically, the well of leading in the core analysis unit 301 includes shale, calcareous and calcium mud every the type of interlayerMatter；A well is led every the level of interlayer including in interlayer, layer, between sand body and in single sand body.
Additionally, a well is led every sandwich type and interface depth determining unit 302, specifically for：
Lower limit standard strategy is responded every interlayer according to the different type for pre-setting, using leading natural gal of a well every interlayerHorse logging response character value, density log response characteristic value and formation resistivity logging response characteristic value are explained and lead a well every folderThe type of layer；Wherein, the different type for pre-setting includes different type every interlayer correspondence every interlayer response lower limit standard strategyGamma ray log response characteristic value span, the span and formation resistivity of density log response characteristic valueThe span of logging response character value.
Flex point of a well at the bottom interface of interlayer top is being led according to dipmeter logging curve, it is determined that leading a well every the interface of interlayerDepth.
Additionally, tendency and inclination angle determining unit 303 of a well every interlayer are led, specifically for：
Stratigraphic dip polar plot is determined according to dipmeter logging curve.
The corresponding window of a well long, step-length and search angle are led in constantly adjustment so that determine to lead eye using stratigraphic dip polar plotWell every interlayer interface depth with determined according to the core data to lead a well corresponding every interlayer occurrence.
It is determined that leading azimuth frequency diagram and Schmidt polar plot of a well every interlayer, main peak side in the azimuth frequency diagram is countedTo as leading tendency and inclination angle of a well every interlayer.
In addition, tendency and inclination angle converting unit 305, specifically for：
According to formula：A well will be led every the tendency of interlayer and inclinedAngle is changed to section where horizontal well path, with complete to lead a well every interlayer the matching every interlayer with horizontal well；Wherein, α isApparent dip；θ is true dip angle；ω is the angle between line of dip and true line of dip.
In addition, production characteristics determining unit 306, specifically for：
According to water injection well and the creation data of producing well, by perforation correspondence and effective response for water flood analysis, production curve featureResearch, it is determined that it is continuous every interlayer spread, it is semicontinuous every interlayer spread and discontinuous dynamic every the corresponding individual well production of interlayer spreadState response characteristic.
A kind of specific implementation of Horizontal Well spacer interlayers prediction meanss provided in an embodiment of the present invention may refer toThe corresponding embodiments of the method for above-mentioned Fig. 1 and Fig. 2, here is omitted.
A kind of Horizontal Well spacer interlayers prediction meanss provided in an embodiment of the present invention, obtain in purpose survey region firstCore data, and determine to lead a well every the type of interlayer, distributing position and occurrence according to the core data, and according to leading eyeWell determines to lead level of a well every interlayer every the distributing position of interlayer and occurrence；Rung every interlayer according to the different type for pre-settingLower limit standard strategy is answered, is explained using Logging Curves and is led type of a well every interlayer, and determined using dipmeter logging curveLead interface depth of a well every interlayer；According to type and interface depth of a well every interlayer is led, it is corresponding that a well is led in continuous adjustmentWindow is long, step-length and search angle so that using dipmeter logging curve determine to lead a well every interlayer interface depth with according to the rockCalculation leads that a well is corresponding every interlayer occurrence according to what is determined, it is determined that leading tendency and inclination angle of a well every interlayer；Obtain net horizontal sectionLog response abnormal data, and scope and type of the horizontal well every interlayer are determined according to net horizontal section log response abnormal data,According to horizontal well every the relative variation of interlayer depth resistivity data, shallow resistivity data and resistivity reservoir determine horizontal well everyThe position of interlayer relative level well well；Well section where the tendency of interlayer and inclination angle are changed to horizontal well path will be ledOn, with complete lead a well every interlayer the matching every interlayer with horizontal well；Predefine the creation data of water injection well and producing well withHorizontal well, every the relation of the position of interlayer relative level well well, determines different water every the scope of interlayer, type and horizontal wellHorizontal well is every the corresponding production feature of Distribution Pattern of Interlayer；Obtain the production number of the water injection well and producing well in purpose survey regionAccording to the production feature of the water injection well and producing well in purpose survey region being determined, according to leading a well every interlayer and horizontal well every folderThe matching result of layer, by the production feature of the water injection well in purpose survey region and producing well and varying level well every interbed distributionThe corresponding production feature of pattern is matched, and determines the net horizontal section of water injection well in purpose survey region and producing well every interlayerDistribution.The present invention can be solved the problems, such as currently to lack and accurately explained every interlayer and the method for portraying its spatial distribution, canWith data in improving prior art using unification, the problem of Forecasting Methodology simplification, Horizontal Well can be overcome to be spacedThe low shortcoming of interbed distribution precision of prediction, improves the precision of Horizontal Well spacer interlayers forecast of distribution.
It should be understood by those skilled in the art that, embodiments of the invention can be provided as method, system or computer programProduct.Therefore, the present invention can be using the reality in terms of complete hardware embodiment, complete software embodiment or combination software and hardwareApply the form of example.And, the present invention can be used and wherein include the computer of computer usable program code at one or moreThe computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) is producedThe form of product.
The present invention is the flow with reference to method according to embodiments of the present invention, equipment (system) and computer program productFigure and/or block diagram are described.It should be understood that every first-class during flow chart and/or block diagram can be realized by computer program instructionsThe combination of flow and/or square frame in journey and/or square frame and flow chart and/or block diagram.These computer programs can be providedThe processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing devices is instructed to produceA raw machine so that produced for reality by the instruction of computer or the computing device of other programmable data processing devicesThe device of the function of being specified in present one flow of flow chart or multiple one square frame of flow and/or block diagram or multiple square frames.
These computer program instructions may be alternatively stored in can guide computer or other programmable data processing devices with spyIn determining the computer-readable memory that mode works so that instruction of the storage in the computer-readable memory is produced and include fingerMake the manufacture of device, the command device realize in one flow of flow chart or multiple one square frame of flow and/or block diagram orThe function of being specified in multiple square frames.
These computer program instructions can be also loaded into computer or other programmable data processing devices so that in meterSeries of operation steps is performed on calculation machine or other programmable devices to produce computer implemented treatment, so as in computer orThe instruction performed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram oneThe step of function of being specified in individual square frame or multiple square frames.
Apply specific embodiment in the present invention to be set forth principle of the invention and implementation method, above exampleExplanation be only intended to help and understand the method for the present invention and its core concept；Simultaneously for those of ordinary skill in the art,According to thought of the invention, will change in specific embodiments and applications, in sum, in this specificationAppearance should not be construed as limiting the invention.