Specific embodiment
The preferred embodiment of the disclosure is more fully described below with reference to accompanying drawings.Although being shown in accompanying drawingThe preferred embodiment of the disclosure, however, it is to be appreciated that may be realized in various forms the disclosure without should be byEmbodiments set forth herein is limited.Conversely, thesing embodiments are provided so that the disclosure is more saturatingIt is thorough and complete, and the scope of the present disclosure can intactly be conveyed to those skilled in the art.
Fig. 1 shows a kind of differentiation tomography for oil field development area according to an embodiment of the inventionThe method of lower wall, the method includes：
Step 101, obtains drilling well individual-layer data, and drilling well individual-layer data is represented is having drilling well brill chance in wellblock a certainThe individual-layer data on stratum, the wherein stratum are cut by tomography；
Step 102, the tomography be reversed fault in the case of, according to following steps distinguish the tomography upper disk andLower wall：
Step 1021, upper disk data file and lower wall data file are created based on drilling well individual-layer data, itsIn upper disk data file meet stratum individual-layer data once comprising only boring, and bore and meet the stratum twiceIndividual-layer data in the shallower individual-layer data once of depth；Lower wall data file meets the stratum comprising only brillIndividual-layer data once, and bore depth relatively deep layering once in the individual-layer data twice of the chance stratumData；
Step 1022, the individual-layer data in upper disk data file is projected in seismic data interpretation system,And identify to represent the different depth of individual-layer data with different, individual-layer data is judged according to markThe position that depth is undergone mutation, as breakpoint location corresponding with the upper disk of tomography；
Step 1023, the individual-layer data in lower wall data file is projected in seismic data interpretation system,And identify to represent the different depth of individual-layer data with different, individual-layer data is judged according to markThe position that depth is undergone mutation, as breakpoint location corresponding with the lower wall of tomography；And
Step 1024, according to the Seismic reflection character in the breakpoint for thering is wellblock to identify, without wellblockSimilar reflection is found in geological data, to determine the breakpoint without wellblock tomography, so as to distinguish without wellblockTomography upper disk and lower wall.
The geological data that each side of the disclosure does not rely on complexity is extracted, by the position of drilling well drilling strataCan exactly judge there is wellblock breakpoint location scope, and intuitively and accurately be identified using drilling well layering projectionUpper lower burrs, have the wellblock Seismic reflection character to carry out breakpoint differentiation, well shake knot without wellblock using seismic data studyClose, compared to prior art, the disclosure greatly reduces judgement complexity while judgment accuracy is ensured,It is particularly suited for the bad region of Complicated Fault Zone seismic imaging such that it is able to preferably for oil field development takesBusiness
Fig. 2 shows the schematic diagram of the embodiment of the present invention principle for reversed fault.Wherein, K1 represents stratum,D represents the lower wall of tomography, and U represents the upper disk of tomography.Here using tri- mouthfuls of drilling wells of a, b, c as in there is a wellblockThe representative of drilling well describes the principle of the program, and b, c drilling well represents only drilling strata K1 drilling wells once, itsMiddle b drilling wells are layered as b1, and c drilling wells are layered as c1；A drilling wells represent drilling strata K1 drilling wells twice, itsThat depth is shallower in middle a drilling wells layering is a1, depth it is deeper be a2.
It will be understood by those skilled in the art that three drilling wells are drawn only for the purposes of principle of specification, actually in meshIn mark region, be not limited to shown in figure with the quantity of the drilling well of a, b, c same type one, conversely, according toThe need for Practical Project, each type of drilling hole number can be reached more than hundreds if not thousands of.
According to the design feature of reversed fault as shown in Figure 2, near breakpoint A corresponding with upper disk, layeringA1, b1 are due to both corresponding to upper disk, and its depth is necessarily close, and c1 corresponds to lower wall, its depth and a1,The difference of b1 is larger, and breakpoint A is necessarily located between c1 and a1.Based on the principle that, can by c1,A1, b1 individual-layer data are put into disk data file, by way of to Systems Projection is explained, can find depthSpend position or the position range of mutation, you can be considered position or the position range of breakpoint A.
Similarly, near breakpoint B corresponding with lower wall, c1 is layered, the data of a2 are necessarily close, and and b1Depth difference it is larger, and breakpoint B is necessarily located between a2 and b1.Based on the principle that, can by c1,A2, b1 data are put into lower wall data file, by way of to Systems Projection is explained, can be found depth and be dashed forwardThe position of change or position range, you can be considered position or the position range of breakpoint B.
Position or position range based on breakpoint A and breakpoint B, you can distinguish the upper disk and lower wall of tomography.
In one example, the method also includes：In the case where the tomography is normal fault, can be according to layeringThe depth difference of data determines the upper disk (upthrow) and lower wall (downthrow block) of tomography.The situation of normal faultFairly simple for reversed fault, the depth of the individual-layer data of upthrow and downthrow block has more significantDifference, therefore according only to the depth difference of individual-layer data, you can determine the upthrow and downthrow block of tomography.
Tomography be normal fault or reversed fault, can be by those skilled in the art according to its experience, using anyMode judges.In one example, can judge as follows the tomography be reversed fault orNormal fault：According to drilling well individual-layer data, drilling strata individual-layer data twice is judged whether, if deposited, then it is assumed that the tomography is reversed fault, otherwise it is assumed that the tomography is normal fault.The principle of this mode isDesign feature based on normal fault and reversed fault, if as shown in Fig. 2 tomography is reversed fault, can existDrilling strata drilling well twice as drilling well a, and normal fault is not in then such drilling well.It is this to sentenceIn the case that disconnected mode is typically found at drilling well enough depths, and typically to be judged in combination with geological analysis.
In one example, drilling strata layering twice can be judged whether by such modeData：If the individual-layer data of a certain drilling well differs by more than two component layer datas of threshold value comprising depth, recognizeFor the individual-layer data of the drilling well is drilling strata individual-layer data twice.Wherein can be in two component layer datas deeplyDeeper one group of degree is stored in lower wall data file, and shallower one group of depth is stored in disk data file.As can be seen from Figure 2 in the principle of this judgment mode, i.e. two individual-layer datas of the drilling well a on stratum of brill chance,The two component layer datas that depth differs larger, the i.e. data of a1 layerings and the data of a2 layerings can be included.
Seismic data interpretation system in the present embodiment, can be that those skilled in the art according to actual needs canAny seismic data interpretation system of enough selections.According to the difference and this area skill of seismic data interpretation systemThe need for art personnel, the depth of individual-layer data can be represented using any mark, for example, mark canTo be one or more in color, symbol or gray scale, by this intuitive way, can be conveniently and accurateThe accurate location of true area breakpoint.
In one example, can be obtained according to the breakpoint location for having wellblock has the fault earthquake breakpoint of wellblock specialLevy；This process can be realized by the way that breakpoint is projected on the seismic profile of well area.Based on above-mentionedThere is the fault earthquake breakpoint feature of well area, there can be the disconnected of wellblock in the geological data learning without well areaLayer earthquake breakpoint feature recognizes the breakpoint without wellblock, thus distinguish the tomography without well area upper disk and underDisk, realizes that well shake combines the purpose of accurate identification tomography upper lower burrs.Wherein, fault earthquake breakpoint feature can be withIt is wave group feature, reflex etc..
Effect using example is illustrated
For ease of understanding the scheme and its effect of the embodiment of the present invention, a concrete application example given belowEffect is illustrated.It will be understood by those skilled in the art that the example is of the invention only for the purposes of understanding, its any toolBody details is not intended to limit the present invention by any way.
Fig. 3 shows the K1 of certain the oil field development area X tomography distinguished using the method for the embodiment of the present inventionOne example of the lower wall breakpoint plan of layer.
X tomographies in the area are reversed fault, and near Faults seismic imaging is excessively poor, and drilling well is a lot, but for upperThe accurate location of lower wall is difficult to, can be calibrated according to gray difference from figure using the method for the present embodimentUpper lower burrs really are distinguished, it is more much more accurate than portraying for original tomography.
Each point on figure is that the individual-layer data of K1 layers of drilling well brill chance is projected in the plane, wherein with gray scale chartShow the different depth of individual-layer data, compared with original tomography, the rough feature of section presentation, but compared withBreakpoint originally is more true, accurate.
The disclosure can be system, method and/or computer program product.Computer program product can includeComputer-readable recording medium, containing for making processor realize the computer of various aspects of the disclosureReadable program instructions.
Computer-readable recording medium can be the instruction for keeping and storing to be used by instruction execution equipmentTangible device.Computer-readable recording medium for example can be-- but be not limited to-- storage device electric,Magnetic storage apparatus, light storage device, electromagnetism storage device, semiconductor memory apparatus or above-mentioned any conjunctionSuitable combination.The more specifically example (non exhaustive list) of computer-readable recording medium includes：It is portableFormula computer disks, hard disk, random access memory (RAM), read-only storage (ROM), erasable type canProgram read-only memory (EPROM or flash memory), static RAM (SRAM), portable pressureContracting disk read-only storage (CD-ROM), digital versatile disc (DVD), memory stick, floppy disk, machinery are compiledDecoding apparatus, the punch card for being for example stored thereon with instruction or groove internal projection structure and above-mentioned any conjunctionSuitable combination.Computer-readable recording medium used herein above is not construed as instantaneous signal in itself, such asThe electromagnetic wave of radio wave or other Free propagations, the electromagnetic wave propagated by waveguide or other transmission mediums(for example, the light pulse for passing through fiber optic cables) or the electric signal for passing through wire transfer.
Computer-readable program instructions as described herein can download to each from computer-readable recording mediumCalculating/processing equipment, or downloaded by network, such as internet, LAN, wide area network and/or wireless networkTo outer computer or External memory equipment.Network can include copper transmission cable, Optical Fiber Transmission, wireless biographyDefeated, router, fire wall, interchanger, gateway computer and/or Edge Server.Each calculates/processes and setsAdapter or network interface in standby receive computer-readable program instructions from network, and forward the meterCalculation machine readable program instructions, for storing in the computer-readable recording medium in each calculating/processing equipment.
Computer program instructions for performing disclosure operation can be assembly instruction, instruction set architecture(ISA) instruction, machine instruction, machine-dependent instructions, microcode, firmware instructions, condition setup data,Or the source code or object code write with any combination of one or more programming language, the programming languageSay the programming language-Smalltalk, C++ etc. including object-oriented, and routine process type programming languageSpeech-such as " C " language or similar programming language.Computer-readable program instructions can be counted fully in userPerformed on calculation machine, partly perform on the user computer, performed as an independent software kit, partPart performs or completely on remote computer or server on the remote computer on the user computerPerform.In the situation for being related to remote computer, remote computer can be by the network-bag of any kindLAN (LAN) or wide area network (WAN)-be connected to subscriber computer are included, or, it may be connected to outside meterCalculation machine (such as using ISP come by Internet connection).In certain embodiments, pass throughUsing the status information of computer-readable program instructions come personalized customization electronic circuit, such as FPGACircuit, field programmable gate array (FPGA) or programmable logic array (PLA), the electronic circuit canTo perform computer-readable program instructions, so as to realize various aspects of the disclosure.
Referring herein to the stream of the method according to the embodiment of the present disclosure, device (system) and computer program productJourney figure and/or block diagram describe various aspects of the disclosure.It should be appreciated that each side of flow chart and/or block diagramThe combination of each square frame in frame and flow chart and/or block diagram, can be realized by computer-readable program instructions.
These computer-readable program instructions can be supplied to all-purpose computer, special-purpose computer or other can compileThe processor of journey data processing equipment, so as to produce a kind of machine so that these instructions are by computerOr other programmable data processing units computing device when, generate in realizing flow chart and/or block diagramThe device of function/action specified in one or more square frames.Can also be these computer-readable program instructionsStorage in a computer-readable storage medium, these instruct cause computer, programmable data processing unit and/Or other equipment works in a specific way, so that, the computer-readable medium of the instruction that is stored with then includes oneManufacture, it includes realizing function/action specified in one or more square frames in flow chart and/or block diagramThe instruction of various aspects.
Can also computer-readable program instructions be loaded into computer, other programmable data processing units,Or on miscellaneous equipment so that perform one on computer, other programmable data processing units or miscellaneous equipmentSeries of operative steps, to produce computer implemented process, so that in computer, other programmable numbersOne or more sides in realizing flow chart and/or block diagram according to the instruction performed in processing unit or miscellaneous equipmentFunction/action specified in frame.
Flow chart and block diagram in accompanying drawing show system, method and the meter of the multiple embodiments according to the disclosureThe architectural framework in the cards of calculation machine program product, function and operation.At this point, flow chart or block diagramIn each square frame can represent a part for module, program segment or instruction, the module, program segmentOr a part for instruction is used for the executable instruction of the logic function that realization specifies comprising one or more.HavingIn a little realizations as replacement, the function of being marked in square frame can also be with suitable different from what is marked in accompanying drawingSequence occurs.For example, two continuous square frames can essentially be performed substantially in parallel, they sometimes can alsoPerform in the opposite order, this is depending on involved function.It is also noted that block diagram and/or flow chartIn each square frame and the square frame in block diagram and/or flow chart combination, can with perform regulation functionOr the special hardware based system of action is realized, or specialized hardware and computer instruction can be usedCombine to realize.
It is described above the presently disclosed embodiments, described above is exemplary, and non-exclusive,And it is also not necessarily limited to disclosed each embodiment.In the scope and spirit without departing from illustrated each embodimentIn the case of, many modifications and changes will be apparent from for those skilled in the art.The selection of term used herein, it is intended to best explain the principle of each embodiment, practical application or to marketIn technology technological improvement, or to be understood that other those of ordinary skill of the art disclose hereinEach embodiment.