CN203296727U - Mechanical-hydraulic double-action release rotary tail pipe hanger - Google Patents
Mechanical-hydraulic double-action release rotary tail pipe hanger Download PDFInfo
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- CN203296727U CN203296727U CN2013203199573U CN201320319957U CN203296727U CN 203296727 U CN203296727 U CN 203296727U CN 2013203199573 U CN2013203199573 U CN 2013203199573U CN 201320319957 U CN201320319957 U CN 201320319957U CN 203296727 U CN203296727 U CN 203296727U
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Abstract
The utility model discloses a mechanical-hydraulic double-action release rotary tail pipe hanger and belongs to the technical field of underground tool manufacturing of well cementing operation of petroleum and gas wells in petroleum and natural gas development. The mechanical-hydraulic double-action release rotary tail pipe hanger comprises a short drilling rod, an upper connector, a release mechanism, a double-male connector, a male-female connector and a lower connector. The short drilling rod, the upper connector, the double-male connector, and the lower connector are in threaded connection in sequence from top to bottom. The mechanical-hydraulic double-action release rotary tail pipe hanger further comprises a carrying mechanism. The carrying mechanism comprises a sitting and hanging hydraulic cylinder, a light-duty bearing, a union double-clamping tile, a union double-conic body, a heavy-duty bearing and a center pipe. The sitting and hanging hydraulic cylinder, the light-duty bearing, the union double-clamping tile, the union double-conic body and the heavy-duty bearing are arranged on the center pipe in sequence from bottom to top. The center pipe is connected to the lower end of the male-female connector. The heavy-load bearing is located between the male-female connector and the union double-conic body. According to the mechanical-hydraulic double-action release rotary tail pipe hanger, when a pipe column is inserted, a tail pipe can rotate, when the hanger is hung in a sitting mode and released, the pipe is carried through the clamping tile and the bearing, and therefore the function of heavy-load tail pipe rotary well cementation is achieved.
Description
Technical field
The utility model relates to a kind of machinery-hydraulic double-acting rotary liner hanger of giving up, and belongs to the downhole tool manufacturing technology field of the oil gas well cementing operation operation of natural petroleum gas field.
Background technology
While in the drilling process that carries out the Holes of Complicated Wells such as various deep-wells, ultradeep well, high angle hole, horizontal well and low-pressure absorption well, carrying out drilling liner cementing, for guaranteeing that sleeve pipe is lowered into design attitude smoothly, dredge and stable well, often to carry out a large amount of driftings, observation and mud conditioning, need cost a large amount of drilling time and expense, even prepare and take careful setting of casing measure by conscientious well, the tail pipe tubing string card that midway is hampered still can occur sometimes, can not be lowered into design attitude.While carrying out cementing operation, for deep-well and ultradeep well, tubing string convection cell frictional resistance is large, and operational discharge capacity is little, and displacement efficiency is low, and cementing quality is poor; For high angle hole and horizontal well, for guaranteeing that sleeve pipe is lowered to and puts in place smoothly, drilling fluid is often lower, also causes displacement efficiency low, and cementing quality is poor; Low-pressure absorption well, when operational discharge capacity is higher, is easy to press and leaks stratum, even causes circulation to lose and return, and for guaranteeing cementing operation, carries out smoothly, and operational discharge capacity is also less, also causes displacement efficiency low, and cementing quality is poor.Therefore, when these Holes of Complicated Wells carry out drilling liner cementing, adopt common extension hanger can not meet on-the-spot use fully, sometimes also can cause pernicious down-hole accident.
At present, be to solve the produced on-site technical problem, the extension hanger technology has obtained significant progress, has particularly studied and has been conducive to the rotary liner hanger that Holes of Complicated Wells tail pipe tubing string was lowered to and improved displacement efficiency and cementing quality, the tool meaning of having large improvement.Extension hanger mainly comprises hanger body and running tool, and the hanger body is realized suspension and the suspension control of tail pipe, and running tool is realized sending into and giving up of tail pipe tubing string.
The patent documentation of publication number CN200946473Y discloses a kind of buckling type tail pipe hanger, adopts the top-down mode of hydraulic pressure to expand, can not rotary tail.The patent documentation of publication number CN201024940Y discloses a kind of built-in rotary tailpipe hanging device, and is fashionable under tubing string, the energy rotary tail; While after hanger is sat extension, carrying out cementing operation, hanger can not rotate.These two kinds of hangers all can not be realized the rotary tail well cementation.
The patent documentation of publication number CN101187300A discloses the expansion rotary liner hanger of a kind of hydraulic pressure and mechanical double-acting.The patent documentation of publication number CN101906946A discloses a kind of inflatable rotary liner hanger, adopts hydraulic pressure mode from bottom to top to expand.These two kinds of expansion-type rotary liner hangers, when being lowered to and construct, all can realize the rotation of full tubing string, is conducive to being lowered to and improving cementing quality of tubing string.But these two kinds of expansion-type rotary liner hangers need to just carry out the expanding suspension of extension hanger after drilling liner cementing construction finishes, and the separating of running tool and hanger body.Because well cementation is an excessive risk operation, the drilling liner cementing risk is larger, and after the drilling liner cementing construction finished, cement paste had been injected in well, and superfluous water mud returns to drill pipe section.If running tool can not effectively separate rapidly and trip out with hanger with drilling rod, drilling rod, running tool will be lived by cement together admittedly with hanger, cause serious accident, whole mouthful of well scrapped, lose huge, therefore before common extension hanger carries out cementing operation, effectively separating of extension and running tool and hanger will be sat, and then just the drilling liner cementing cementing practice can be carried out.So this hanger site operation risk is larger.
Tradition extension hanger running tool adopts left-hand thread to be connected with hanger, by forward, opens left-hand thread and realizes that running tool separates with hanger.Rotary liner hanger, because need forward to realize the tail pipe rotation, can not adopt traditional forward button back-off structure, needs the extension hanger separating mechanism of development of new, realizes effective separation of rotary liner hanger.
The utility model content
the utility model is intended to for existing common extension hanger, expansion-type rotary liner hanger and loading ability of bearing rotary liner hanger above shortcomings, a kind of machinery-hydraulic double-acting rotary liner hanger of giving up is provided, the utlity model has and fashionablely under tubing string can realize tail pipe rotation, hanger sit to hang with give up and separate after, by slips and loading ability of bearing, can realize the function of heavily loaded tail pipe rotation well cementation, after hanger is sat extension, suppress hydraulic pressure and realize that tail pipe gives up, also can be by the drilling rod running tool certain angle that reverses, press down again a segment distance and realize that tail pipe gives up.
The utility model is to adopt following technical proposals to realize:
Machinery-hydraulic double-acting rotary liner hanger of giving up, comprise short drill pipe, top connection, releasing gadget, two male joint, pin and box sub and lower contact, short drill pipe, top connection, two male joint and lower contact are threaded from top to bottom successively, it is characterized in that: also include load carrier, described load carrier comprises sitting hangs fluid cylinder, spigot bearing, disjunctor dual-grip, disjunctor bicone, heavy-duty bearing and central tube, sits extension fluid cylinder, spigot bearing, disjunctor dual-grip, disjunctor bicone and heavy-duty bearing and is successively set on from top to bottom on central tube; Central tube is connected to the pin and box sub lower end, and heavy-duty bearing is between pin and box sub and disjunctor bicone.
Described disjunctor dual-grip and disjunctor bicone, by the chimeric connection of embedded structure, were provided with chute on the disjunctor bicone.
Described releasing gadget comprises hydraulic releasing mechanism and mechanical releasing gadget.
Described hydraulic releasing mechanism comprises the fluid cylinder of giving up, gives up and control pin, retaining ring and play pawl, the fluid cylinder of giving up is arranged in two male joints, play pawl by bindiny mechanism, give up and control pin and the retaining ring is connected on the fluid cylinder of giving up, the lower end that plays pawl is provided with and plays the pawl fixture block, plays the pawl fixture block and supports and be stuck in the groove in pin and box sub by lower contact.
Described mechanical releasing gadget comprises that top connection, moment of torsion cylinder, two male joint, lower contact, pin and box sub, machinery are given up and controls pin and hydraulic releasing mechanism, top connection is chimeric by the engaging tooth of splined shaft and moment of torsion cylinder upper end, the engaging tooth of moment of torsion cylinder and pin and box sub upper end is chimeric, machinery give up control that pin is arranged on top connection and moment of torsion cylinder be connected the coincidence position.
Described seat is hung fluid cylinder the dual-grip seat of disjunctor is hung and implemented to control.
Also include sealed tube and seal box, sealed tube is connected with lower contact, and the seal box fixed cover is located at outside sealed tube, and is positioned at the junction of pin and box sub and central tube.
Also comprise hollow rubber plug, described hollow rubber plug is by pin and the lower end that is threaded in running tool.
Employing the utility model has the advantage of:
one, the utility model comprises load carrier, described load carrier comprises sitting hangs fluid cylinder, spigot bearing, disjunctor dual-grip, disjunctor bicone, heavy-duty bearing and central tube, and seat extension fluid cylinder, spigot bearing, disjunctor dual-grip, disjunctor bicone, heavy-duty bearing are successively set on central tube, central tube is connected with the pin and box sub lower end, heavy-duty bearing is between pin and box sub and disjunctor bicone, have and fashionablely under tubing string can realize tail pipe rotation, hanger sit to hang with give up and separate after, the heavy-duty bearing carrying, can realize the function of heavily loaded tail pipe rotation cementing operation, can effectively solve common hanger can not rotate, expansion-type rotary liner hanger just can be sat and hang the technical problem of slipping out of the hand after cementing operation, for deep-well, ultradeep well and Holes of Complicated Wells drilling liner cementing, be conducive to tubing string and be lowered into design attitude, be conducive to improve displacement efficiency and cementing quality, solved the technical problem that existing extension hanger exists in using at the scene.
Two, in the utility model, at seat, hang between fluid cylinder and disjunctor dual-grip and be provided with spigot bearing, during the rotary liner hanger rotation, avoid sitting the extension fluid cylinder and rotate with the disjunctor dual-grip, destruction is sat the sealing of hanging fluid cylinder.
Three, in the utility model, adopt disjunctor dual-grip and disjunctor bicone mechanism, sit and hang rear carrying tail pipe, significantly increase the outer layer sleeve loaded area, the protection outer layer sleeve, simultaneously, also increase the tail tube hanging ability.
Four, in the utility model, described top connection is chimeric by the engaging tooth of splined shaft and moment of torsion cylinder upper end, and described moment of torsion cylinder lower end is chimeric by the engaging tooth of splined shaft and pin and box sub upper end, and this mode is transmitted rotation torque, has realized the tail pipe rotation.
Five, the utility model also comprises bullet pawl fixture block, plays the pawl fixture block and supports and be stuck in the groove in pin and box sub by lower contact, has realized the be connected carrying of running tool with hanger.
Six, in the utility model, described hydraulic releasing mechanism comprises the fluid cylinder of giving up, gives up and control pin, retaining ring and play pawl etc., the fluid cylinder of giving up is arranged on two male joints top, play pawl and be connected on the fluid cylinder of giving up by give up control pin, retaining ring and bindiny mechanism, this mode can effectively realize the rotary liner hanger hydraulic releasing.
Seven, in the utility model, the described machinery machinery of giving up comprises hydraulic releasing mechanism, moment of torsion cylinder and the machinery control pin of giving up, machinery is given up and is controlled pin and be arranged on top connection and the chimeric position of moment of torsion cylinder, machinery is given up and carry out to be controlled, and this mode can realize effectively that the machinery of rotary liner hanger gives up.
Eight, in the utility model, described seal box fixed cover is located at outside sealed tube, and is positioned at the junction of pin and box sub and central tube, and is more reliable with the sealing of load carrier.
Nine, the utility model also comprises hollow rubber plug, and described hollow rubber plug is by pin and the lower end that is threaded in running tool, but this mode cleaning sleeve inside pipe wall, and isolated water mud, control lower cement plug more convenient.
In sum, the utility model compared with prior art, have and can realize rotation fashionable under tail pipe and sit and hang rear rotary tail construction, simultaneously, adopt machinery-hydraulic double-acting releasing gadget, give up reliable, the site operation well generally is suitable for, solved well safety and the technical problem of site operation.
The accompanying drawing explanation
Fig. 1 is the utility model structural representation
Fig. 2 is the A-A cross-sectional view in Fig. 1
Fig. 3 is the B-B cross-sectional view in Fig. 1
Fig. 4 is the C-C sectional structure schematic diagram in Fig. 1
Fig. 5 is the give up structural representation of outward appearance of the utility model running tool machinery
Fig. 6 is the structural representation of the utility model releasing gadget
In figure, be labeled as: 1, short drill pipe, 2, top connection, 3, the moment of torsion cylinder, 4, two male joint, 5, play the pawl fixture block, 6, lower contact, 7, pin and box sub, 8, sealed tube, 9, seal box, 10, heavy-duty bearing, 11, the disjunctor bicone, 12, the disjunctor dual-grip, 13, spigot bearing, 14, sit to hang fluid cylinder, 15, central tube, 16, hollow rubber plug, 17, the machinery control pin of giving up, 18, the fluid cylinder of giving up, 19, the control pin of giving up, 20, the retaining ring, 21, play pawl.
The specific embodiment
The utility model is described in further detail below in conjunction with Figure of description.
Embodiment 1
As a better embodiment of the present utility model, the utility model mainly comprises short drill pipe 1, top connection 2, moment of torsion cylinder 3, two male joint 4, plays pawl fixture block 5, lower contact 6, pin and box sub 7, releasing gadget, seal box 9, hollow rubber plug 16 and load carrier.Wherein, seal box and releasing gadget can adopt seal box of the prior art and releasing gadget.
described top connection 2 is chimeric by the engaging tooth of splined shaft and moment of torsion cylinder 3 upper ends, moment of torsion cylinder 3 is chimeric by the engaging tooth of splined shaft and pin and box sub 7 upper ends, the support card of described bullet pawl fixture block 5 by lower contact 6 is in the internal recess of pin and box sub 7, described seat is hung fluid cylinder 14, spigot bearing 13, disjunctor dual-grip 12, disjunctor bicone 11, heavy-duty bearing 10 is arranged on central tube 15 successively, described short drill pipe 1, top connection 2, two male joints 4, lower contact 6 is connected and fixed successively by screw thread, described pin and box sub 7, central tube 15 is connected and fixed successively by screw thread, described hollow rubber plug 16 is by pin and the lower end that is threaded in running tool.Described seal box 9 is fixedly mounted on the junction of the outer pin and box sub 7 of sealed tube and central tube 15.
Described load carrier comprises heavy-duty bearing 10, disjunctor bicone 11, disjunctor dual-grip 12, sits and hang fluid cylinder 14, described disjunctor bicone is to be haply end to end formation of pyramidal cylinder by two, described disjunctor dual-grip is that disjunctor bicone and disjunctor dual-grip link together by embedded structure by two end to end formation of slips.
Such form of structure, adopt disjunctor dual-grip 12 and disjunctor bicone 11, increases hanging capacity, the protection outer layer sleeve; Adopt heavy-duty bearing 10 after hanger is sat extension, reduce rotation torque, realize the rotary tail cementing operation; The splined shaft of employing top connection 2 and the engaging tooth of moment of torsion cylinder 3 upper ends are chimeric, the engaging tooth of the splined shaft of moment of torsion cylinder 3 and pin and box sub 7 upper ends is chimeric, short drill pipe 1, top connection 2, two male joint 4, lower contact 6 are threaded fixing, pin and box sub 7, central tube 15 are threaded, and realize the transmission of rotary tail high pulling torque; Adopt bullet pawl fixture block 5 to realize being connected carrying and slipping out of the hand of running tool and hanger; Adopt hollow rubber plug 16, the cleaning sleeve inside pipe wall, isolated water mud, control lower cement plug; Adopt seal box 9 to realize the sealing of running tool and hanger, ensure construction.
As preferred forms of the present utility model, be: the utility model mainly comprises short drill pipe 1, top connection 2, moment of torsion cylinder 3, two male joint 4, bullet pawl fixture block 5, lower contact 6, pin and box sub 7, heavy-duty bearing 10, disjunctor bicone 11, disjunctor dual-grip 12, sits and hang fluid cylinder 14, central tube 15 and hollow rubber plug 16.Short drill pipe 1 upper end is provided with the drilling rod box thread, and realization is connected with drilling rod, and the lower end of hanger is provided with the sleeve pipe male thread, and realization is connected with tail pipe.Play the conical surface support card of pawl fixture block 5 by lower contact 6 upper ends in the internal recess of pin and box sub 7, realize carrying tail pipe.The engaging tooth that splined shaft and the 3 upper ends settings of moment of torsion cylinder are set in top connection 2 is chimeric, the engaging tooth that splined shaft and pin and box sub 7 upper ends settings are set on moment of torsion cylinder 3 is chimeric, short drill pipe 1, top connection 2, two male joint 4, lower contact 6 are threaded fixing, pin and box sub 7, central tube 15 are threaded fixing, transmitting large torque, rotary tail.Seat is hung fluid cylinder 14, disjunctor dual-grip 12, disjunctor bicone 11, heavy-duty bearing 10 etc. and is arranged on successively on central tube 15, realizes that the control of seat extension, slips hang, the heavy-duty bearing carrying, and the increase supporting capacity, protect outer layer sleeve, realizes that tail pipe rotates well cementation.Hollow rubber plug 16, by pin and the lower end that is threaded in sealed tube 8, is realized the cleaning sleeve inside pipe wall, and isolated water mud is controlled cement plug.
Groundwork principle of the present utility model is as follows:
The utility model is connected between tail pipe tubing string bunch tube and rod string, is lowered to while being hampered, the well mouth rotary drilling rod, realize the tail pipe rotation, is conducive to tubing string and is lowered into smoothly design attitude.After tubing string is lowered to and puts in place, pitching, build the pressure, sit and hang fluid cylinder 10 and promote that disjunctor dual-grips 12 are up to be realized that hanger is sat and hang.After sitting extension, tail pipe weight passes to disjunctor bicone 11, disjunctor dual-grip 12, outer layer sleeve by heavy-duty bearing 10.
After sitting extension, play pawl fixture block 5 and reclaim, throw off the internal recess of two female joints 7, realize giving up.Circulate and during cementing practice, running tool is pressed on hanger, the splined shaft of moment of torsion cylinder 3 and pin and box sub 7 upper end engaging tooths are chimeric, and the well mouth rotary drilling rod can realize that tail pipe rotation and rotary tail cement the well, and is conducive to improve displacement efficiency and cementing quality.
another embodiment of the present utility model, the described fluid cylinder 18 of giving up is arranged in two male joints 4, cavity is left on top, described bullet pawl 21 is connected to the bottom of the fluid cylinder 18 of giving up by bindiny mechanism and the control pin 19 of giving up, described bullet pawl 21 lower ends are provided with outside bullet pawl fixture block 5, play the conical surface support card of pawl fixture block 5 by lower contact 6 upper ends in pin and box sub 7 grooves, described top connection 2 is chimeric by the engaging tooth of splined shaft and moment of torsion cylinder 3 upper ends, the engaging tooth of the engaging tooth of moment of torsion cylinder 3 lower ends and pin and box sub 7 upper ends is chimeric, described disjunctor bicone 11 and disjunctor dual-grip 12 are entrenched togather by embedded structure, described seat is hung fluid cylinder 14, spigot bearing 13, disjunctor dual-grip 12, disjunctor bicone 11, heavy-duty bearing 10 grades are arranged on central tube 15 successively, described seal box 9 is fixedly mounted on the junction of the outer pin and box sub 7 of sealed tube 8 and central tube 18, described short drill pipe 1, top connection 2, two male joints 4, lower contact 6 links together with sealed tube 8, described hollow rubber plug 16 is by pin and be threaded in sealed tube 8 lower ends, described short drill pipe 1 upper end processing drill rod thread, central tube 15 lower end processing casing threads, with rod string, with bunch tube, be connected respectively, on described disjunctor bicone 11, be provided with chute, between described seal box 9 and sealed tube 8 and pin and box sub 7, be provided with the O RunddichtringO.
Such form of structure, adopt disjunctor dual-grip 12, and the protection outer layer sleeve, increase suspended load; Adopt embedded slips, avoid sitting in advance extension, while avoiding sitting the rear rotation of extension, slips and cone dislocation cause to sit and report the loss effect; The splined shaft of employing top connection 2 and the engaging tooth of pin and box sub 7 are chimeric, realize the tail pipe rotation; Adopt disjunctor bicone 11 and disjunctor dual-grip 12 upper and lower sides that bearing is installed respectively, realize that rotary liner hanger is sat extension rear carrying tail pipe and little moment of torsion is realized tail pipe rotation well cementation; Employing give up fluid cylinder 18, give up and control pin 19 and play pawl 21, realize that carrying tail pipe weight and hanger give up; Adopt on disjunctor bicone 11 and be provided with chute, increase area of passage; Adopt seal box 9, realize the high pressure sealing construction; Adopt hollow rubber plug 16, the cleaning sleeve inside pipe wall, isolated water mud, control lower cement plug.
Another embodiment of the present utility model is: described hydraulic releasing mechanism comprises the fluid cylinder 18 of giving up, gives up and control pin 19, retaining ring 20 and play pawl 21, the described fluid cylinder 18 of giving up is arranged in two male joints 4, cavity is left on top, play pawl 21 and be connected on the fluid cylinder 18 of giving up by bindiny mechanism and the control pin 19 of giving up, play pawl fixture block 5 and support and be stuck in the groove in pin and box sub 7 by lower contact 6.
The short drill pipe upper end is provided with the drilling rod box thread, and realization is connected with drilling rod, and the lower end of central tube is provided with the sleeve pipe male thread, and realization is connected with tail pipe.The fluid cylinder of giving up is arranged in two male joints, and cavity is left on top, and the cavity that the top of described seat extension fluid cylinder is left, be convenient to sit the extension fluid cylinder fully up, realizes slipping out of the hand.Play the bottom that pawl is connected to the fluid cylinder of giving up, the lower end that plays pawl is provided with outside bullet pawl fixture block, plays the conical surface support card of pawl fixture block by the lower contact upper end in the pin and box sub internal recess, realizes carrying tail pipe.Give up and control pin realize giving up fluid cylinder and play the action control of pawl.The retaining ring prevents from giving up rear descending, avoids again hanging tail pipe.The engaging tooth that splined shaft and the setting of pin and box sub upper end are set in top connection is chimeric, and short drill pipe, top connection, two male joint, lower contact are threaded, and pin and box sub is connected with the central tube sleeve pipe, realizes the moment of torsion transmission, rotary tail.Disjunctor dual-grip protection outer layer sleeve, increase hanging capacity.The disjunctor dual-grip embeds the disjunctor bicone, avoids sitting in advance extension, makes to sit to hang reliably.Sit the extension fluid cylinder and be arranged on central tube, central tube has flowing hole, realizes sitting hanging and controls.Hollow rubber plug, by pin and the lower end that is threaded in sealed tube, is realized the cleaning sleeve inside pipe wall, and isolated water mud is controlled cement plug.Disjunctor bicone outer setting had chute, increased area of passage.
Predominant use of the present utility model: be connected between tail pipe tubing string bunch tube and rod string, be lowered to while being hampered, the well mouth rotary drilling rod, realize the tail pipe rotation, is conducive to tubing string and is lowered into smoothly design attitude.After tubing string is lowered to and puts in place, drop into the ball that builds the pressure, build the pressure, promote to sit hang fluid cylinder and the disjunctor dual-grip up, realize that hanger is sat to hang, outer layer sleeve is by disjunctor dual-grip carrying tail pipe weight.After sit hanging, continue to suppress higher pressure, cut off the control pin of giving up, the fluid cylinder band of the giving up pawl of moving is up, realizes giving up.The retaining ring up rear accident of controlling organization that prevents from giving up is descending, avoids again hanging tail pipe, guarantees to give up successfully.Circulate and during cementing practice, keep splined shaft and the pin and box sub upper end engaging tooth of top connection chimeric, by the well mouth rotary drilling rod, realizing the rotary tail well cementation, can greatly improve displacement efficiency and raising cementing quality.
another embodiment of the present utility model is: described mechanical releasing gadget comprises hydraulic releasing mechanism, top connection 2, moment of torsion cylinder 3, pin and box sub 7, machinery is given up and is controlled pin 17, first order splined shaft and the engaging tooth of moment of torsion cylinder 3 upper ends of described top connection 2 by the twin-stage splined shaft is chimeric, moment of torsion cylinder 3 engaging tooth and the engaging tooth of pin and box sub 7 upper ends by lower end is chimeric, machinery is given up and is controlled the coincidence position that pin 17 is arranged on top connection 2 and moment of torsion cylinder 3, described hydraulic releasing mechanism comprises the fluid cylinder 18 of giving up, give up and control pin 19, retaining ring 20 and bullet pawl 21, the fluid cylinder 18 of giving up is arranged in two male joints 4, play pawl 21 and pass through bindiny mechanism, give up and control pin 19 and retaining ring 20 is connected to fluid cylinder 18 bottoms of giving up, playing pawl fixture block 5 supports and is stuck in the groove in pin and box sub 7 by lower contact 6.
The short drill pipe upper end is provided with the drilling rod box thread, and realization is connected with drilling rod, and the lower end of central tube is provided with the sleeve pipe male thread, and realization is connected with tail pipe.The fluid cylinder of giving up is arranged in two male joints, and cavity is left on top, and the cavity that the top of described seat extension fluid cylinder is left, be convenient to sit the extension fluid cylinder fully up, realizes slipping out of the hand.Play the bottom that pawl is connected to the fluid cylinder of giving up, the lower end that plays pawl is provided with outside bullet pawl fixture block, plays the conical surface support card of pawl fixture block by the lower contact upper end in the pin and box sub internal recess, realizes carrying tail pipe.Short drill pipe, top connection, two male joint, lower contact are threaded, and pin and box sub is connected with the central tube sleeve pipe, realizes the moment of torsion transmission, rotary tail.first order splined shaft and the engaging tooth of moment of torsion cylinder 3 upper ends of described top connection by the twin-stage splined shaft is chimeric, machinery is given up and is controlled the coincidence position that pin is arranged on top connection and moment of torsion cylinder, in the counter-rotating top connection of point of neutralization position, twist off the machinery control pin of giving up, top connection counter-rotating certain angle, press down again a segment distance, the hydraulic releasing mechanism that is arranged in two male joints is thereupon descending, bullet pawl fixture block is subjected to can not be descending along restriction under the pin and box sub groove, cut off the control pin of giving up, promote whole hydraulic releasing mechanism up with respect to two male joints, play the support conical surface that the pawl fixture block exits the lower contact upper end, realization machinery is given up.The retaining ring up rear accident of controlling organization that prevents from giving up is descending, avoids again hanging tail pipe.After machinery was given up, top connection was chimeric by second level splined shaft and the moment of torsion cylinder of twin-stage splined shaft, realized moment of torsion transmission and rotation well cementation.Disjunctor dual-grip protection outer layer sleeve, increase hanging capacity.The disjunctor dual-grip embeds the disjunctor bicone, avoids sitting in advance extension, makes to sit to hang reliably.Sit the extension fluid cylinder and be arranged on central tube, central tube has flowing hole, realizes sitting hanging and controls.Hollow rubber plug, by pin and the lower end that is threaded in sealed tube, is realized the cleaning sleeve inside pipe wall, and isolated water mud is controlled cement plug.Disjunctor bicone outer setting had chute, can increase flow-passing surface chimeric long-pending.
Predominant use of the present utility model: be connected between tail pipe tubing string bunch tube and rod string, be lowered to while being hampered, the well mouth rotary drilling rod, realize the tail pipe rotation, is conducive to tubing string and is lowered into smoothly design attitude.After tubing string is lowered to and puts in place, drop into the ball that builds the pressure, build the pressure, promote to sit hang fluid cylinder and the disjunctor dual-grip up, realize that hanger is sat to hang, outer layer sleeve is by disjunctor dual-grip carrying tail pipe weight.After sit hanging, continue to suppress higher pressure, cut off the control pin of giving up, the fluid cylinder band of the giving up pawl of moving is up, realizes giving up.While needing, transfer drilling rod to point of neutralization position, by counter-rotating with press down drilling rod, realize that machinery gives up.After the retaining ring prevented from giving up, the descending tail pipe that again hangs of the controlling organization of giving up, guaranteed to give up successfully.Circulate and during cementing practice, keep the splined shaft of top connection chimeric with the engaging tooth pin and box sub upper end engaging tooth of moment of torsion cylinder upper end, by the well mouth rotary drilling rod, realizing the rotary tail well cementation, can greatly improve displacement efficiency and raising cementing quality.
Claims (6)
1. machinery-hydraulic double-acting rotary liner hanger of giving up, comprise short drill pipe (1), top connection (2), releasing gadget, two male joints (4), pin and box sub (7) and lower contact (6), short drill pipe (1), top connection (2), two male joints (4) and lower contact (6) are threaded from top to bottom successively, it is characterized in that: also include load carrier, described load carrier comprises sitting hangs fluid cylinder (14), spigot bearing (13), disjunctor dual-grip (12), disjunctor bicone (11), heavy-duty bearing (10) and central tube (15), sit and hang fluid cylinder (14), spigot bearing (13), disjunctor dual-grip (12), disjunctor bicone (11) and heavy-duty bearing (10) are successively set on central tube (15) from top to bottom, central tube (15) is connected to pin and box sub (7) lower end, and heavy-duty bearing (10) is positioned between pin and box sub (7) and disjunctor bicone (11), on described disjunctor bicone (11), is provided with chute.
2. machinery-hydraulic double-acting according to claim 1 rotary liner hanger of giving up, it is characterized in that: described releasing gadget comprises hydraulic releasing mechanism and mechanical releasing gadget.
3. machinery-hydraulic double-acting according to claim 2 rotary liner hanger of giving up, it is characterized in that: described hydraulic releasing mechanism comprises the fluid cylinder of giving up (18), give up and control pin (19), retaining ring (20) and bullet pawl (21), the fluid cylinder (18) of giving up is arranged in two male joints (4), playing pawl (21) is connected on the fluid cylinder of giving up (18) by give up control pin (19) and retaining ring (20), the lower end that plays pawl (21) is provided with and plays pawl fixture block (5), playing pawl fixture block (5) supports and is stuck in the groove in pin and box sub (7) by lower contact (6).
4. machinery-hydraulic double-acting according to claim 2 rotary liner hanger of giving up, it is characterized in that: described mechanical releasing gadget comprises top connection (2), moment of torsion cylinder (3), two male joints (4), lower contact (6), pin and box sub (7), machinery is given up and is controlled pin (17) and hydraulic releasing mechanism, top connection (2) is chimeric by the engaging tooth of splined shaft and moment of torsion cylinder (3) upper end, moment of torsion cylinder (3) is chimeric with the engaging tooth of pin and box sub (7) upper end, machinery give up control that pin (17) is arranged on top connection (2) and moment of torsion cylinder (3) be connected the coincidence position.
5. machinery-hydraulic double-acting according to claim 1 rotary liner hanger of giving up, it is characterized in that: also include sealed tube (8) and seal box (9), sealed tube (8) is connected with lower contact (6), seal box (9) fixed cover is located at outside sealed tube (8), and is positioned at the junction of pin and box sub (7) and central tube (15).
6. machinery-hydraulic double-acting according to claim 1 rotary liner hanger of giving up is characterized in that: also comprise hollow rubber plug (16), described hollow rubber plug (16) is by pin and be threaded in the lower end of running tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203199573U CN203296727U (en) | 2013-06-05 | 2013-06-05 | Mechanical-hydraulic double-action release rotary tail pipe hanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203199573U CN203296727U (en) | 2013-06-05 | 2013-06-05 | Mechanical-hydraulic double-action release rotary tail pipe hanger |
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| CN203296727U true CN203296727U (en) | 2013-11-20 |
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| CN2013203199573U Expired - Lifetime CN203296727U (en) | 2013-06-05 | 2013-06-05 | Mechanical-hydraulic double-action release rotary tail pipe hanger |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105484689A (en) * | 2015-12-04 | 2016-04-13 | 中国石油集团川庆钻探工程有限公司 | Horizontal well liner completion well entering tool |
| CN105781461A (en) * | 2016-03-29 | 2016-07-20 | 新疆永升能源有限责任公司 | Hydraulic expandable liner hanger provided with double-safety releasing gadget |
| CN105937382A (en) * | 2016-06-17 | 2016-09-14 | 中国石油天然气股份有限公司 | Hydraulic bi-directional slips type hanger |
| CN108301789A (en) * | 2017-10-12 | 2018-07-20 | 河南省煤田地质局四队 | Case pulling device and case pulling method |
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2013
- 2013-06-05 CN CN2013203199573U patent/CN203296727U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105484689A (en) * | 2015-12-04 | 2016-04-13 | 中国石油集团川庆钻探工程有限公司 | Horizontal well liner completion well entering tool |
| CN105484689B (en) * | 2015-12-04 | 2018-02-16 | 中国石油集团川庆钻探工程有限公司 | A kind of horizontal well liner-type well completion enters well instrument |
| CN105781461A (en) * | 2016-03-29 | 2016-07-20 | 新疆永升能源有限责任公司 | Hydraulic expandable liner hanger provided with double-safety releasing gadget |
| CN105781461B (en) * | 2016-03-29 | 2018-04-10 | 新疆永升能源有限责任公司 | Hydraulic Double releasing gadget expandable liner hanger |
| CN105937382A (en) * | 2016-06-17 | 2016-09-14 | 中国石油天然气股份有限公司 | Hydraulic bi-directional slips type hanger |
| CN105937382B (en) * | 2016-06-17 | 2018-11-16 | 中国石油天然气股份有限公司 | Hydraulic bidirectional slip-type hanger |
| CN108301789A (en) * | 2017-10-12 | 2018-07-20 | 河南省煤田地质局四队 | Case pulling device and case pulling method |
| CN108301789B (en) * | 2017-10-12 | 2023-11-03 | 河南省煤田地质局四队 | Casing pulling device and casing pulling method |
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| C14 | Grant of patent or utility model | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20200922 Address after: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CHINA NATIONAL PETROLEUM CORPORATION CHUANQING DRILLING ENGINEERING Co. Address before: The 1 section of No. 3 company Chuanqing Drilling Technology Information Office Chenghua District Green Road 610051 Chengdu City, Sichuan Province Patentee before: CHINA NATIONAL PETROLEUM CORPORATION CHUANQING DRILLING ENGINEERING Co. |
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| CX01 | Expiry of patent term |
Granted publication date: 20131120 |