CN202946070U - Hydraulic rotating invertedly-buckled releasing tool - Google Patents
Hydraulic rotating invertedly-buckled releasing tool Download PDFInfo
- Publication number
- CN202946070U CN202946070U CN 201220664891 CN201220664891U CN202946070U CN 202946070 U CN202946070 U CN 202946070U CN 201220664891 CN201220664891 CN 201220664891 CN 201220664891 U CN201220664891 U CN 201220664891U CN 202946070 U CN202946070 U CN 202946070U
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- positioning seat
- seat
- fixture block
- ball seat
- giving
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Abstract
The utility model relates to the technical field of running tools of downhole tools for oil and gas drilling, in particular to a hydraulic rotating invertedly-buckled releasing tool. The releasing tool comprises an upper connector, a positioning seat sleeve, a releasing ball seat and a connecting sleeve, wherein an upper connector tube cavity is formed in the upper connector; the lower part of the upper connector is connected together with the upper part of the positioning seat sleeve through a left-hand thread; a positioning seat cavity is formed in the positioning seat sleeve; and the releasing ball seat is fixedly mounted in the positioning seat cavity and can move downwards by means of shutoff pressure. The releasing tool has the advantages of reasonable and compact structure, and convenience in use; with a releasing clamping block, the positioning seat sleeve and the connecting sleeve are fixedly connected; by means of shutoff pressure, the releasing ball seat shears off a shear pin and moves downwards to allow the releasing clamping block to move radially so as to disconnect the positioning seat sleeve with the connecting sleeve; in case of complex underground conditions, the hydraulic releasing can not realized, the disengagement and releasing of the left-hand thread joint of the upper connector and the positioning seat sleeve can be realized through inverted buckling, so that the reliability and application range of the releasing tool can be greatly improved, therefore, the releasing tool has the characteristics of safety, reliability, simplicity and convenience, high efficiency.
Description
Technical field
The utility model relates to the releasing tool technical field in oil gas drilling downhole tool, is a kind of hydraulic rotation back-off releasing tool.
Background technology
At present in carrying out the underground fracture work progress, when packer sets fully, usually need to carry out hydraulic releasing back and forth sending and receiving enter instrument, and under down hole problem, sometimes be difficult to realize reliably hydraulic releasing by building the pressure, this has just limited the use of hydraulic releasing tool.
Summary of the invention
The utility model provides a kind of hydraulic rotation back-off releasing tool, has overcome the deficiency of above-mentioned prior art, and it can effectively solve the problem that can't reliably realize hydraulic releasing under the down hole problem that has the releasing tool existence now.
The technical solution of the utility model realizes by following measures: a kind of hydraulic rotation back-off releasing tool, comprise top connection, locate cover for seat, give up ball seat and adapter sleeve, there is the top connection tube chamber inside of top connection, the top connection bottom is overlapped top by left hand thread and positioning seat and is linked together, there is the positioning seat chamber cover for seat inside, location, inside, positioning seat chamber is installed with the ball seat of giving up that can move down by building the pressure, and the location cover for seat is fixedly mounted on adapter sleeve top by the locking device that can be unlocked by the ball seat of giving up after moving down.
The below is the further optimization and/or improvements to above-mentioned utility model technical scheme:
The upper joint-shaft neck can be arranged at the bottom of above-mentioned top connection, the outer upper of upper joint-shaft neck has sinistral external thread, the levogyrate inner thread that matches with sinistral external thread is arranged on the upper inside wall in positioning seat chamber, and it is outside that the location cover for seat is fixedly mounted on the upper joint-shaft neck by levogyrate inner thread and sinistral external thread.
above-mentioned locking device can comprise the fixture block of giving up, the positioning seat axle journal is arranged at cover for seat bottom, location, the positioning seat neck bush is contained in the inner chamber top of adapter sleeve, the location cover for seat of positioning seat axle journal top forms the positioning seat shaft shoulder, the lower end of the positioning seat shaft shoulder is sitting on the upper surface of adapter sleeve, there is the fixture block installing hole positioning seat axle journal bottom and the fixture block of giving up is installed, the give up upper surface of fixture block is the conical surface on up-small and down-big fixture block, the give up lower surface of fixture block is the conical surface under up big and down small fixture block, correspondence is given up has the fixture block pockets on the ball seat lateral surface of giving up of fixture block upper position and the fixture block top position of giving up, the inner face of fixture block of giving up holds out against on the ball seat lateral surface of giving up of fixture block pockets bottom, on the inwall of the adapter sleeve of corresponding fixture block position of mounting hole, the female connector draw-in groove is arranged, the upper surface of female connector draw-in groove for fixture block on the conical surface on the draw-in groove that adapts of the conical surface, the lower surface of female connector draw-in groove for fixture block under the conical surface under the draw-in groove that adapts of the conical surface, the give up outer end of fixture block is sleeved in the female connector draw-in groove and location cover for seat and adapter sleeve is fixed together.
There is the ball seat inner chamber inside of the above-mentioned ball seat of giving up, the up big and down small ball seat conical surface can be arranged on the upper inside wall of ball seat inner chamber, the upper outside of ball seat of giving up has ball seat pressed on ring platform, give up ball seat top is sleeved in the positioning seat chamber and can moves up and down by ball seat pressed on ring platform, ring platform in positioning seat is arranged on the lower inner wall in positioning seat chamber, and the ball seat bottom of giving up is sleeved in positioning seat in the ring platform and can moves up and down; In corresponding positioning seat, the ball seat outside of giving up of ring platform upper end position can be fixed with retainer ring by shear pin, the retainer ring lower end is sitting on the upper surface of ring platform in positioning seat, distance between retainer ring upper end and ball seat pressed on ring platform lower surface is greater than the distance of giving up between fixture block lower end and fixture block pockets lower surface, and the upper end of the ball seat of giving up holds out against on the lower surface of top connection.
The upper outside of above-mentioned positioning seat axle journal can have the anti-rotation projection that is no less than, and it is inner that the adapter sleeve upper end of corresponding anti-rotation bump position has the anti-rotation draw-in groove of opening upwards, anti-rotation projection to be sleeved on the anti-rotation draw-in groove.
Above-mentioned adapter sleeve bottom can be fixedly connected with tie-back sleeve, and the female connector axle journal is arranged at the bottom of adapter sleeve, and inner chamber top and the female connector axle journal of tie-back sleeve are fixedly installed togather by screw thread, the lower end of tie-back sleeve have can with screw thread under tie-back sleeve that the below tubing string is connected.
Positioning seat journal packing groove can be arranged and sealing ring is installed on the positioning seat axle journal lateral surface of above-mentioned corresponding fixture block installing hole top position, appear on the stage seal groove and sealing ring is installed of ball seat can be arranged on the lateral surface of ball seat pressed on ring platform, upper joint-shaft neck seal groove can be arranged and sealing ring is installed on the upper joint-shaft neck lateral surface of sinistral external thread below.
The utility model reasonable and compact in structure, easy to use, it is fixedly connected with location cover for seat and adapter sleeve by the fixture block of giving up, make the ball seat of giving up cut off shear pin and move down by building the pressure and the fixture block of giving up is moved radially untie location cover for seat and adapter sleeve, when down-hole situation complexity, in the time of can't realizing hydraulic releasing, the left hand thread junction disengaging that realizes top connection and positioning seat inner room by back-off realizes giving up, greatly improve unfailing performance and the scope of application of releasing tool, had safe and reliable, easy, efficient characteristics.
Description of drawings
Accompanying drawing 1 is looked the half section structural representation for the master of the utility model most preferred embodiment.
coding in accompanying drawing is respectively: 1 is top connection, 2 are the location cover for seat, 3 are the ball seat of giving up, 4 is adapter sleeve, 5 are the top connection tube chamber, 6 is the positioning seat chamber, 7 is the upper joint-shaft neck, 8 is sinistral external thread, 9 is the ball seat inner chamber, 10 is the ball seat conical surface, 11 is ball seat pressed on ring platform, 12 is ring platform in positioning seat, 13 is shear pin, 14 is retainer ring, 15 are the fixture block of giving up, 16 is the positioning seat axle journal, 17 is the positioning seat shaft shoulder, 18 is the fixture block installing hole, 19 is the conical surface on fixture block, 20 is the fixture block pockets, 21 is the female connector draw-in groove, 22 is the anti-rotation projection, 23 is the anti-rotation draw-in groove, 24 is tie-back sleeve, 25 is the female connector axle journal, 26 is screw thread under tie-back sleeve, 27 is positioning seat journal packing groove, 28 are the ball seat seal groove of appearing on the stage, 29 is upper joint-shaft neck seal groove.
The specific embodiment
The utility model is not subjected to the restriction of following embodiment, can determine concrete embodiment according to the technical solution of the utility model and actual conditions.
In the utility model, for convenience of description, the description of the relative position relation of each parts is all that the Butut mode according to Figure of description 1 is described, as: the position relationship of forward and backward, upper and lower, left and right etc. is to determine according to the Butut direction of Figure of description 1.
Below in conjunction with embodiment and accompanying drawing, the utility model is further described:
As shown in Figure 1, this hydraulic rotation back-off releasing tool comprises top connection 1, location cover for seat 2, give up ball seat 3 and adapter sleeve 4, there is top connection tube chamber 5 inside of top connection 1, top connection 1 bottom links together by left hand thread and cover for seat 2 tops, location, there is positioning seat chamber 6 cover for seat 2 inside, location, 6 inside, positioning seat chamber are installed with the ball seat 3 of giving up that can move down by building the pressure, and location cover for seat 2 is fixedly mounted on adapter sleeve 4 tops by the locking device that can be unlocked by the ball seat 3 of giving up after moving down.Connect top connection 1 and location cover for seat 2 by left hand thread, complicated when the down-hole situation, in the time of can't realizing hydraulic releasing, realize giving up by back-off, greatly improved unfailing performance and the scope of application of giving up.
Can according to actual needs, above-mentioned hydraulic rotation back-off releasing tool be made further optimization and/or improvements:
As shown in Figure 1, upper joint-shaft neck 7 is arranged at the bottom of top connection 1, the outer upper of upper joint-shaft neck 7 has sinistral external thread 8, the levogyrate inner thread that matches with sinistral external thread 8 is arranged on the upper inside wall in positioning seat chamber 6, and location cover for seat 2 is fixedly mounted on upper joint-shaft neck 7 outsides by levogyrate inner thread and sinistral external thread 8.
as shown in Figure 1, locking device comprises the fixture block 15 of giving up, positioning seat axle journal 16 is arranged at cover for seat 2 bottoms, location, positioning seat axle journal 16 is sleeved on the inner chamber top of adapter sleeve 4, the location cover for seat 2 of positioning seat axle journal 16 tops forms the positioning seat shaft shoulder 17, the lower end of the positioning seat shaft shoulder 17 is sitting on the upper surface of adapter sleeve 4, there is fixture block installing hole 18 positioning seat axle journal 16 bottoms and the fixture block 15 of giving up are installed, the give up upper surface of fixture block 15 is the conical surface 19 on up-small and down-big fixture block, the give up lower surface of fixture block 15 is the conical surface under up big and down small fixture block, correspondence is given up has fixture block pockets 20 on ball seat 3 lateral surfaces of giving up of fixture block 15 upper positions and fixture block 15 top positions of giving up, the inner face of fixture block 15 of giving up holds out against on ball seat 3 lateral surfaces of giving up of fixture block pockets 20 bottoms, on the inwall of the adapter sleeve 4 of corresponding fixture block installing hole 18 positions, female connector draw-in groove 21 is arranged, the upper surface of female connector draw-in groove 21 for fixture block on the conical surface on the draw-in groove that adapts of the conical surface 19, the lower surface of female connector draw-in groove 21 for fixture block under the conical surface under the draw-in groove that adapts of the conical surface, the give up outer end of fixture block 15 is sleeved in female connector draw-in groove 21 and location cover for seat 2 and adapter sleeve 4 is fixed together.The lower surface that preferably makes fixture block pockets 20 is the up-small and down-big guiding conical surface, and the upper surface of fixture block pockets 20 is the up big and down small guiding conical surface, enters smoothly fixture block pockets 20 with the fixture block 15 that guarantees to give up, and realizes smoothly release.
As shown in Figure 1, there is ball seat inner chamber 9 the give up inside of ball seat 3, the up big and down small ball seat conical surface 10 is arranged on the upper inside wall of ball seat inner chamber 9, the upper outside of ball seat 3 of giving up has ball seat pressed on ring platform 11, give up ball seat 3 tops are sleeved in positioning seat chamber 6 and can move up and down by ball seat pressed on ring platform 11, ring platform 12 in positioning seat is arranged on the lower inner wall in positioning seat chamber 6, and ball seat 3 bottoms of giving up are sleeved in positioning seat in ring platform 12 and can move up and down; In corresponding positioning seat, ball seat 3 outsides of giving up of ring platform 12 upper end positions are fixed with retainer ring 14 by shear pin 13, retainer ring 14 lower ends are sitting on the upper surface of ring platform 12 in positioning seat, distance between retainer ring 14 upper ends and ball seat pressed on ring platform 11 lower surfaces is greater than the distance of giving up between fixture block 15 lower ends and fixture block pockets 20 lower surfaces, and the upper end of the ball seat 3 of giving up holds out against on the lower surface of top connection 1.By shear pin 13, retainer ring 14 and top connection 1, the ball seat 3 of giving up is located up and down fully, installation and transportation are more reliable.
As shown in Figure 1, the upper outside of positioning seat axle journal 16 has the anti-rotation projection 22 that is no less than, and adapter sleeve 4 upper ends of corresponding anti-rotation projection 22 positions have the anti-rotation draw-in groove 23 of opening upwards, anti-rotation projection 22 to be sleeved on anti-rotation draw-in groove 23 inside.Anti-rotation projection 22 can prevent from locating cover for seat 2 with anti-rotation draw-in groove 23 and rotate relative to adapter sleeve 4, and during with the assurance back-off, only top connection 1 is rotated, and top connection 1 and location cover for seat 2 are reliably broken away from.
As shown in Figure 1, adapter sleeve 4 bottoms are fixedly connected with tie-back sleeve 24, female connector axle journal 25 is arranged at the bottom of adapter sleeve 4, and inner chamber top and the female connector axle journal 25 of tie-back sleeve 24 are fixedly installed togather by screw thread, the lower end of tie-back sleeve 24 have can with screw thread 26 under tie-back sleeve that the below tubing string is connected.
As shown in Figure 1, positioning seat journal packing groove 27 is arranged and sealing ring is installed on positioning seat axle journal 16 lateral surfaces of corresponding fixture block installing hole 18 top positions, appear on the stage seal groove 28 and sealing ring is installed of ball seat is arranged on the lateral surface of ball seat pressed on ring platform 11, upper joint-shaft neck seal groove 29 is arranged and sealing ring is installed on upper joint-shaft neck 7 lateral surfaces of sinistral external thread 8 belows.Can improve the sealing performance of each junction by above-mentioned sealing ring, when guaranteeing to build the pressure, pressure fluid reduces leakage, and the ball seat 3 of giving up can be cut off shear pin 13 smoothly under pressure fluid promotes.
Above technical characterictic has consisted of most preferred embodiment of the present utility model, and it has stronger compliance and best implementation result, can increase and decrease according to actual needs non-essential technical characterictic, satisfies the demand of different situations.
The use procedure of the utility model most preferred embodiment: at first, be fixedly connected on packer the utility model and G.I.H, after packer setting is completed, first build the pressure by pitching and give up, the i.e. interior input of joint tube chamber 5 ball that builds the pressure upwards, the ball that builds the pressure falls and is sitting on the ball seat conical surface 10; Then, building the pressure makes pressure fluid in top connection tube chamber 5 promote to build the pressure ball and the ball seat 3 of giving up move down, and the ball seat 3 of giving up moves down and cut off shear pin 13; Afterwards, the ball seat 3 of giving up continues to move down until the lower surface of ball seat pressed on ring platform 11 is sitting on the upper surface of retainer ring 14, and this moment, fixture block pockets 20 was aimed at fixture block 15 positions of giving up; Then, on put on joint 1, top connection 1 is together with moving on location cover for seat 2 and the fixture block 15 of giving up, the conical surface 19 of giving up on the fixture block of fixture block 15 promotes to the ball seat 3 of giving up along the fixture block 15 that slides and will give up of the conical surface on draw-in groove, fixture block 15 enters in fixture block pockets 20 until give up, give up fixture block 15 outer ends break away from female connector draw-in grooves 21, and location cover for seat 2 is separated with adapter sleeve 4; At last, put on joint 1 in continuation, top connection 1, location cover for seat 2, give up ball seat 3 and the fixture block 15 of giving up are suggested, and adapter sleeve 4, tie-back sleeve 24 and below tubing string fall, and realize successfully giving up.
When because of the down-hole situation complicated, pitching builds the pressure unrealized when successfully giving up, drive top connection 1 rotation by the rotation drilling tool, because packer is fixed in the well of below, adapter sleeve 4 is fixed together by tie-back sleeve 24 and packer, location cover for seat 2 is fixedly connected on by anti-rotation projection 22 and anti-rotation draw-in groove 23 again and keeps fixing on adapter sleeve 4, and separate the levogyrate inner thread junction of the sinistral external thread 8 that rotation top connection 1 makes top connection 1 and location cover for seat 2; At last, on put on joint 1, top connection 1 is suggested, location cover for seat 2, the ball seat 3 of giving up, the fixture block 15 of giving up, adapter sleeve 4, tie-back sleeve 24 and below tubing string fall, final realization is successfully given up.
Claims (10)
1. hydraulic rotation back-off releasing tool, it is characterized in that comprising top connection, locate cover for seat, give up ball seat and adapter sleeve, there is the top connection tube chamber inside of top connection, the top connection bottom is overlapped top by left hand thread and positioning seat and is linked together, there is the positioning seat chamber cover for seat inside, location, inside, positioning seat chamber is installed with the ball seat of giving up that can move down by building the pressure, and the location cover for seat is fixedly mounted on adapter sleeve top by the locking device that can be unlocked by the ball seat of giving up after moving down.
2. hydraulic rotation back-off releasing tool according to claim 1, the upper joint-shaft neck is arranged at the bottom that it is characterized in that top connection, the outer upper of upper joint-shaft neck has sinistral external thread, the levogyrate inner thread that matches with sinistral external thread is arranged on the upper inside wall in positioning seat chamber, and it is outside that the location cover for seat is fixedly mounted on the upper joint-shaft neck by levogyrate inner thread and sinistral external thread.
3. hydraulic rotation back-off releasing tool according to claim 1 and 2, it is characterized in that locking device comprises the fixture block of giving up, the positioning seat axle journal is arranged at cover for seat bottom, location, the positioning seat neck bush is contained in the inner chamber top of adapter sleeve, the location cover for seat of positioning seat axle journal top forms the positioning seat shaft shoulder, the lower end of the positioning seat shaft shoulder is sitting on the upper surface of adapter sleeve, there is the fixture block installing hole positioning seat axle journal bottom and the fixture block of giving up is installed, the give up upper surface of fixture block is the conical surface on up-small and down-big fixture block, the give up lower surface of fixture block is the conical surface under up big and down small fixture block, correspondence is given up has the fixture block pockets on the ball seat lateral surface of giving up of fixture block upper position and the fixture block top position of giving up, the inner face of fixture block of giving up holds out against on the ball seat lateral surface of giving up of fixture block pockets bottom, on the inwall of the adapter sleeve of corresponding fixture block position of mounting hole, the female connector draw-in groove is arranged, the upper surface of female connector draw-in groove for fixture block on the conical surface on the draw-in groove that adapts of the conical surface, the lower surface of female connector draw-in groove for fixture block under the conical surface under the draw-in groove that adapts of the conical surface, the give up outer end of fixture block is sleeved in the female connector draw-in groove and location cover for seat and adapter sleeve is fixed together.
4. hydraulic rotation back-off releasing tool according to claim 3, there is the ball seat inner chamber it is characterized in that the giving up inside of ball seat, the up big and down small ball seat conical surface is arranged on the upper inside wall of ball seat inner chamber, the upper outside of ball seat of giving up has ball seat pressed on ring platform, give up ball seat top is sleeved in the positioning seat chamber and can moves up and down by ball seat pressed on ring platform, ring platform in positioning seat is arranged on the lower inner wall in positioning seat chamber, and the ball seat bottom of giving up is sleeved in positioning seat in the ring platform and can moves up and down; In corresponding positioning seat, the ball seat outside of giving up of ring platform upper end position is fixed with retainer ring by shear pin, the retainer ring lower end is sitting on the upper surface of ring platform in positioning seat, distance between retainer ring upper end and ball seat pressed on ring platform lower surface is greater than the distance of giving up between fixture block lower end and fixture block pockets lower surface, and the upper end of the ball seat of giving up holds out against on the lower surface of top connection.
5. hydraulic rotation back-off releasing tool according to claim 3, the upper outside that it is characterized in that the positioning seat axle journal has the anti-rotation projection that is no less than, there is the anti-rotation draw-in groove of opening upwards the adapter sleeve upper end of corresponding anti-rotation bump position, and it is inner that the anti-rotation projection is sleeved on the anti-rotation draw-in groove.
6. hydraulic rotation back-off releasing tool according to claim 4, the upper outside that it is characterized in that the positioning seat axle journal has the anti-rotation projection that is no less than, there is the anti-rotation draw-in groove of opening upwards the adapter sleeve upper end of corresponding anti-rotation bump position, and it is inner that the anti-rotation projection is sleeved on the anti-rotation draw-in groove.
7. hydraulic rotation back-off releasing tool according to claim 5, it is characterized in that the adapter sleeve bottom is fixedly connected with tie-back sleeve, the female connector axle journal is arranged at the bottom of adapter sleeve, inner chamber top and the female connector axle journal of tie-back sleeve are fixedly installed togather by screw thread, the lower end of tie-back sleeve have can with screw thread under tie-back sleeve that the below tubing string is connected.
8. hydraulic rotation back-off releasing tool according to claim 6, it is characterized in that the adapter sleeve bottom is fixedly connected with tie-back sleeve, the female connector axle journal is arranged at the bottom of adapter sleeve, inner chamber top and the female connector axle journal of tie-back sleeve are fixedly installed togather by screw thread, the lower end of tie-back sleeve have can with screw thread under tie-back sleeve that the below tubing string is connected.
9. hydraulic rotation back-off releasing tool according to claim 7, it is characterized in that positioning seat journal packing groove being arranged and sealing ring being installed on the positioning seat axle journal lateral surface of corresponding fixture block installing hole top position, appear on the stage seal groove and sealing ring is installed of ball seat is arranged on the lateral surface of ball seat pressed on ring platform, upper joint-shaft neck seal groove is arranged and sealing ring is installed on the upper joint-shaft neck lateral surface of sinistral external thread below.
10. hydraulic rotation back-off releasing tool according to claim 8, it is characterized in that positioning seat journal packing groove being arranged and sealing ring being installed on the positioning seat axle journal lateral surface of corresponding fixture block installing hole top position, appear on the stage seal groove and sealing ring is installed of ball seat is arranged on the lateral surface of ball seat pressed on ring platform, upper joint-shaft neck seal groove is arranged and sealing ring is installed on the upper joint-shaft neck lateral surface of sinistral external thread below.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220664891 CN202946070U (en) | 2012-12-06 | 2012-12-06 | Hydraulic rotating invertedly-buckled releasing tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220664891 CN202946070U (en) | 2012-12-06 | 2012-12-06 | Hydraulic rotating invertedly-buckled releasing tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202946070U true CN202946070U (en) | 2013-05-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220664891 Expired - Fee Related CN202946070U (en) | 2012-12-06 | 2012-12-06 | Hydraulic rotating invertedly-buckled releasing tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202946070U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104005712A (en) * | 2014-06-17 | 2014-08-27 | 江苏航天鸿鹏数控机械有限公司 | Differential pressure clutch type tail pipe rotating device |
| CN107288563A (en) * | 2016-03-31 | 2017-10-24 | 中国石油天然气股份有限公司 | Releasing tool |
| CN111773830A (en) * | 2020-07-06 | 2020-10-16 | 中国石油天然气集团有限公司 | Air drill non-hydrocarbon gas filtering device |
| CN114687702A (en) * | 2022-04-26 | 2022-07-01 | 长江大学 | Overlength cement stopper abandons well releasing tool |
-
2012
- 2012-12-06 CN CN 201220664891 patent/CN202946070U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104005712A (en) * | 2014-06-17 | 2014-08-27 | 江苏航天鸿鹏数控机械有限公司 | Differential pressure clutch type tail pipe rotating device |
| CN104005712B (en) * | 2014-06-17 | 2016-03-23 | 江苏航天鸿鹏数控机械有限公司 | A kind of pressure reduction clutch type tail pipe whirligig |
| CN107288563A (en) * | 2016-03-31 | 2017-10-24 | 中国石油天然气股份有限公司 | Releasing tool |
| CN107288563B (en) * | 2016-03-31 | 2023-04-25 | 中国石油天然气股份有限公司 | Releasing tool |
| CN111773830A (en) * | 2020-07-06 | 2020-10-16 | 中国石油天然气集团有限公司 | Air drill non-hydrocarbon gas filtering device |
| CN114687702A (en) * | 2022-04-26 | 2022-07-01 | 长江大学 | Overlength cement stopper abandons well releasing tool |
| CN114687702B (en) * | 2022-04-26 | 2024-04-19 | 长江大学 | Ultra-long cement plug well abandoning releasing tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130522 Termination date: 20201206 |