Tool is hit under a kind of hydraulic vibrationTechnical field
The utility model belongs to oil drilling machining tools art, in particular to hits tool under a kind of hydraulic vibration.
Background technique
In oil field development drilling process, due to oil-water well hole condition is severe, geologic structure is complicated etc., it occur frequently that boringTool influences the progress of drilling well work by the accident of card, it is therefore desirable to carry out unfreezing to drilling tool, solve usually using vibration toolLock of tool drilling.Vibration tool kind is various, wherein damping when hydraulic vibration tool is flowed in tiny runner using hydraulic oilIt is used as retaining mechanism, using release caused by runner suddenly change, strike is generated in vibration tool, by vibration workThe lower end of tool strikes drilling tool, to realize unfreezing.
The Chinese utility model patent file that Authorization Notice No. is CN201915878U discloses to be hit on a kind of continuous hydraulicDevice and bumper sub, wherein continuous hydraulic bumper sub is by top connection, lower contact, piston cylinder, piston, six rib pitch braces, ball, ballPull rod, spring, spring fastening composition, ball are sitting on ball seat under the effect of gravity, realize linear sealing, living when carrying out vibration workPlug under pressure with piston occur relative displacement, when ball pull rod compressed spring and ball be pulled away from ball seat when, linear sealing contact,Pressure release in tubing string, piston cylinder move down rapidly and hit lower contact, generate a vibration, by moving in circles, realize multiple vibration.
Since working principle is limited, requirement of the hydraulic vibration tool to sealing is high, it is not difficult to find that above-mentioned hydraulic bumper subIn sphere and ball seat between sealing mainly realized by the gravity of sphere, under the impact of hydraulic fluid, sphere be easyFluctuation occurs under the impact of hydraulic fluid or shakes, leads to seal failure, once seal failure, vibration tool just can not makeWith.
Utility model content
The purpose of this utility model is to provide hitting tool under a kind of hydraulic vibration, with solve it is in the prior art it is hydraulic underIt hits device and relies primarily on the self weights of the components such as sphere and ball pull rod and realize that linear sealing leads to seal the technical issues of being easy failure.
To achieve the above object, tool is hit under the utility model hydraulic vibration to adopt the following technical scheme that:
Tool is hit under a kind of hydraulic vibration, is sleeved on including the lower valve sleeve with lower contact part and being slidable in the vertical directionThe upper valve sleeve that lower valve sleeve is struck for pressure-bearing uplink, pressure release downlink outside lower valve sleeve, upper valve set upper side have top connection part,It is equipped with the valve seat part with valve port in lower valve sleeve, is moved back and forth along the vertical direction in upper valve sleeve and is equipped with spool, spool hasBlock the valve port for downlink so that upper valve sleeve pressure-bearing uplink closure part, elastic component is equipped in upper valve sleeve, elastic component is upwardValve pocket applies down force, is applied to spool pushing tow spool when upper valve sleeve goes upward to setting position with respect to lower valve sleeve lift withRealize that the upward active force of pressure release, spool have upper pressure-bearing surface and lower pressure-bearing surface directed downwardly upward, have in upper valve sleeve with it is upperThe corresponding upper pressure pocket of pressure-bearing surface and lower pressure pocket corresponding with lower pressure-bearing surface, on upper valve sleeve or on spool or upper valve sleeve and spoolBetween be equipped with the throttling passage for being connected to upper and lower pressure pocket.
The working principle of the utility model is: when carrying out unfreezing operation, the top connection part of upper valve sleeve and drilling tool of going into the wellConnection, the lower contact of lower valve sleeve are connected with fishing tool, when decentralization tubing string reaches stuck tool, through hydraulic pump into tubing stringPumping liquid, liquid pushes spool downlink after entering upper pressure pocket, while elastic component compresses, the closure part of spool and valve seatFace sealing is realized in part, continues pumping liquid, and the pressure of lower pressure pocket is gradually increased, reversed to push upper valve sleeve uplink, elastic shapeUpward pushing tow spool therewith, when upper valve sleeve goes upward to setting position, the closure part of spool separates realization pressure release with valve seat part,Upper valve sleeve hurtles down under the action of tubing string pushes load and self weight, and the impact portion is passed energy by impact lower valve sleeveIt is handed to the fishing tool being connected with lower valve sleeve, completes a vibration, is repeated several times after above-mentioned movement, it can be achieved that stuck toolUnfreezing.
It is sealed the beneficial effects of the utility model are: spool is realized under the promotion of hydraulic fluid with the face of valve seat part,Sealing effect is more preferable, solves the self weight realization that hydraulic bumper sub in the prior art relies primarily on the components such as sphere and ball pull rodLinear sealing causes to seal the technical issues of being easy failure, further extends the service life that tool is hit under vibration.
Further, the closure part of spool is the closure for cooperating with the sealing of valve seat forming face that the spool bottom is equipped withEnd face.Face sealing is realized after contacting with the valve seat part in closure part.
Further, the throttling passage is equipped between upper valve sleeve and spool, spool has radial ringed protrusion, the radial directionThe outer peripheral surface of annular protrusion and the inner wall of upper valve sleeve form the throttling passage.The upper pressure pocket of upper valve sleeve is logical by throttlingThe chock pressure difference that road generates pushes spool downlink.
Further, the radial both ends for the vertical cross-section of radial ringed protrusion vertically extended are arc-shaped.CircleArc section can reduce energy loss of the hydraulic fluid in pressure-bearing surface on impacting spool, more effectively push the downlink of spool.
Further, it is equipped in upper valve sleeve for the upper limit cap with block cooperation at the top of spool, upper limit cap is equipped with upperFlow channels.Upper limit cap is used to carry out the spool of uplink block limit, the flow channels for guide hydraulic fluid intoEnter the pressure pocket in upper valve sleeve.
Further, the bottom centre position of upper limit cap is equipped with for the stop section with spool press block cooperation, describedUpper flow channels are the radial flow channels that the upper limit cap is equipped with.The flow channels being arranged radially may make hydraulic fluidIt is smooth into the pressure pocket in upper valve sleeve.
Further, upper valve sleeve has drive ring section, is oriented to and cooperates with the spool, is provided in the drive ring sectionThe flow channels vertically extended.In uplink, drive ring Duan Keyu spool produces relative sliding upper valve sleeve, and flow channels canGuidance hydraulic fluid is flow in the cavity above valve seat part.
Further, upper valve sleeve has directed downwardly for blocking valve port so that upper valve sleeve internal pressure rises to setting in spoolValue lifts the lifting pressure-bearing surface of upper valve sleeve in turn, and the upper valve sleeve also has in upper valve sleeve with respect to lower valve sleeve downlink to strike lower valveThe impact portion of set.Pressure-bearing surface is lifted for for driving the uplink of upper valve sleeve under the promotion of pressure pocket, impact portion to be in upper valve sleeveThe shock to lower valve sleeve is realized when whereabouts.
Further, upper valve sleeve bottom has the spline housing section being sleeved on outside lower valve sleeve, the lower end surface shape of the spline housing sectionAt the impact portion.In upper valve sleeve downlink, spline housing section lower end, which is formed by impact portion, can realize impact to lower valve sleeve.
Further, upper valve sleeve has the righting box cupling section with lower valve sleeve guiding cooperation.Upper valve sleeve uplink underDuring row, righting box cupling Duan Keyu spool is produced relative sliding.
Detailed description of the invention
Fig. 1 is the cross-sectional view that tool is hit under the utility model hydraulic vibration；
Appended drawing reference: 1- upper valve sleeve, 101- upper binding head, 102- locating part, 1021- flowing hole, the upper connecting cylinder of 103-,104- drive ring, 1041- flow channels, connecting cylinder under 105-, 106- righting box cupling, 107- spline tube, 108- are lifted pressure-bearingFace, 2- lower valve sleeve, 201- annular shelf, 202- axially penetrate through through-hole, 203- lower contact part, 3- support base, 301- blockPortion, 4- spool, 401- annular protrusion, 5- throttling passage, 6- reset spring, pressure pocket under 7-, the upper pressure pocket of 8-, 9- steel ball.
Specific embodiment
The embodiments of the present invention is described further with reference to the accompanying drawing.
The specific embodiment of tool is hit under the utility model hydraulic vibration:
As shown in Figure 1, tool is hit under a kind of hydraulic vibration, including having the lower contact part 203 being connected with fishing toolLower valve sleeve 2, the upper binding head 101 being connected with drilling tool of going into the well, and the upper valve sleeve 1 being connected with upper binding head 101.
The spool 4 of downlink and the sealing cooperation of 3 realization face of support base, spool are provided between upper valve sleeve 1 and lower valve sleeve 24 side wall is prominent to be formed with the annular protrusion 401 that throttling passage 5 is constituted with 1 inner wall of upper valve sleeve.In other embodiments, it throttlesChannel may be provided on annular protrusion 401, may also be arranged on upper valve sleeve 1.
Upper binding head 101 is connected through a screw thread with upper valve sleeve 1, and the lower section of upper binding head 101, which has been connected through a screw thread, to be used forThe locating part 102 of block is carried out when to 4 uplink of spool, is offered on locating part 102 for directing the flow of liquid either into inside upper valve sleeve 1Flowing hole 1021.The lower end surface of upper binding head 101 forms lifting pressure-bearing surface 108, lower pressure pocket 7 and the liquid in upper pressure pocket 8Pressure fluid can push the uplink of upper valve sleeve 1 by acting on lifting pressure-bearing surface 108, be lifted the annular of pressure-bearing surface 108 and spool 4Upper pressure pocket 8 is formed between protrusion 401.
It is connected through a screw thread between upper binding head 101 and upper connecting cylinder 103, between upper connecting cylinder 103 and lower connecting cylinder 105It is provided with the drive ring 104 for realizing guiding cooperation with spool 4, the middle part of drive ring 104 has vertically extendedFlow channels 1041 are equipped with reset spring 6 between the top and annular protrusion 401 of drive ring 104, reset spring 6 can be upwardThe application of valve pocket 1 down force is applied to pushing tow spool 4 when upper valve sleeve 1 goes upward to setting position with respect to lower valve sleeve 2 to spool 4The upward active force to realize pressure release is lifted,
105 screw thread of lower connecting cylinder with the upper connecting cylinder 103 of the top of drive ring 104 and lower section respectively of drive ring 104Connection.It is provided between lower connecting cylinder 105 and spline tube 107 for the righting box cupling 106 with the guiding cooperation of spool 4, righting connectsHoop 106 is threadedly coupled with the spline tube 107 of the lower connecting cylinder 105 of 106 top of righting box cupling and lower section respectively, upper connecting cylinder 103,Upper valve sleeve 1 is collectively formed in lower connecting cylinder 105, spline tube 107, and the lower end surface of spline tube 107 is formed for striking annular shelf201 impact portion.
The cavity of annular protrusion 401 and 3 or more support base on spool 4 forms lower pressure pocket 7, and spool 4 and support base 3 are realAfter now sealing, the pressure increase in lower pressure pocket 7, with upper 8 collective effect of pressure pocket in the lifting pressure-bearing surface on upper binding head 101108, push 1 uplink of upper valve sleeve.
2 lower end of lower valve sleeve has nearby outwardly protruded annular shelf 201, upper valve sleeve 1 and 2 fitting of lower valve sleeve, annularCarrier 201 can be used for bearing the impact of upper valve sleeve 1, and the middle part of lower valve sleeve 2 is to axially penetrate through through-hole 202, axially penetrate through through-hole202 form current by pass, and the top of lower valve sleeve 2 is connected through a screw thread the support base 3 for sealing with 4 realization face of spool, prop upSupportting seat 3 and 1 inner wall of upper valve sleeve is clearance fit, and the middle part of support base 3 is provided with and the valve opening that axially penetrates through through-hole 202 and communicate.WhenLower pressure pocket 7 and upper pressure pocket 8 promotion upper valve sleeve 1 are gone upward to after being detached from support base 3, in lower pressure pocket 7 and upper pressure pocket 8Liquid can realize moment aerial drainage with through-hole 202 is axially penetrated through by the valve opening on support base 3, so that 1 downlink of upper valve sleeve is simultaneouslyThe impact to lower valve sleeve 2 is realized by spline tube 107.
The lower section of support base 3 is equipped with the stop section 301 that block is carried out to the righting box cupling 106, in 1 uplink of upper valve sleeveBlock can be carried out to righting box cupling 106, be equipped in the groove formed between spline tube 107 and lower valve sleeve 2 for transmitting torqueSteel ball 9, when external tubing string, which continues upward valve pocket 1, is pumped into hydraulic fluid, steel ball 9 can carry out the transmitting of torque.
Tool is hit under hydraulic vibration provided by the present embodiment at work, top connection 101 and drilling tool of going into the well pass through screw threadConnection, lower valve sleeve 2 is connected with fishing tool, and when tubing string reaches stuck tool in lower section, liquid is pumped into tubing string by hydraulic pumpBody, hydraulic fluid is entered in upper pressure pocket 8 by flowing hole 1021, in upper pressure pocket 8 under the promotion of hydraulic fluid pressure, valveCore 4 is run down, while reset spring 6 is compressed, and spool 4 continues to run down lower end surface and support base 3 so that spool 4Upper surface gluing, sealing is linked together, and is realized face sealing, is continued pumping liquid, be covered with entirely by the liquid of flow channels 1041Lower pressure pocket 7, so that the pressure in lower pressure pocket 7 is continuously increased, when reaching the pressure greater than upper pressure pocket 8, lower pressure pocket 7With the liquid effects in upper pressure pocket 8 in lifting pressure-bearing surface 108, and then upper valve sleeve 1 is pushed to run up with respect to lower valve sleeve 2, thisWhen, the upward compression reseting spring 6 of drive ring 104, when upper valve sleeve 1 is up to certain position, the lower end surface of spool 4 and supportSeat 3 separates, and through-hole that the liquid in lower pressure pocket 7 is opened up by 3 middle part of support base, lower valve sleeve 2 axially penetrate through through-hole 202Rapid aerial drainage, upper valve sleeve 1 hurtle down under the action of tubing string pushes load and self weight, under the lower end surface of spline tube 107 is hitThe annular shelf 201 of valve pocket 2 hits under completing once, above-mentioned movement is repeated several times, it can be achieved that stuck tool unfreezing.
In the present embodiment, upper binding head is threadedly coupled with upper valve sleeve, and in other embodiments, upper binding head can be with upper valveSet is integrally formed, and becomes the upper binding head part of upper valve sleeve.Equally, in other embodiments, the lower contact part of lower valve sleeve canIt is formed after being threadedly coupled by independent lower contact with lower valve sleeve.
Since reset spring can play the role of that spool is pulled to be detached from support base upper surface, in other embodiments,Tension spring can be set between the annular protrusion on upper binding head and spool.