CN201723189U - Multi-way releasing device - Google Patents
Multi-way releasing device Download PDFInfo
- Publication number
- CN201723189U CN201723189U CN2010202459103U CN201020245910U CN201723189U CN 201723189 U CN201723189 U CN 201723189U CN 2010202459103 U CN2010202459103 U CN 2010202459103U CN 201020245910 U CN201020245910 U CN 201020245910U CN 201723189 U CN201723189 U CN 201723189U
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- Prior art keywords
- giving
- screw thread
- lock pipe
- pipe
- releasing
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- Expired - Lifetime
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- 230000007246 mechanism Effects 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 7
- 239000012530 fluid Substances 0.000 description 7
- 239000007789 gas Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000002706 hydrostatic effect Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000008602 contraction Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000006386 neutralization reaction Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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Abstract
A multi-way releasing device belongs to the technical field of manufacturing of releasing tools for downhole operation and comprises an upper joint, a connecting sleeve, a lower connecting pipe, a thread latch pipe, a releasing lock pipe and a releasing lock head, wherein the upper joint is connected with the upper end of the thread latch pipe, the lower end of the connecting sleeve is connected with the lower connecting pipe, the lower end of the releasing lock pipe is connected with the releasing lock head, split threads are arranged at the lower end of the thread latch pipe, and the problem that releasing is often unsuccessful in the prior art is solved; the utility model designs a multiple releasing mechanism provides a multipath releasing device, has the characteristics of many, simple structure, easy operation convenience of releasing the way.
Description
Technical field:
A kind of multi-way releasing device is used for oil gas field and implements the construction of volume increase improvement project, and completion tubular column is implemented the work of giving up, and belongs to the manufacturing technology field of oil-gas field downhole operation releasing tool.
Background technology:
In the exploration and development process in oil field, in order to increase the output of oil or natural gas, perhaps in later stage of oil gas well mining, in order to prolong the product term of old well, increase output, reach the purpose that improves development benefit, all to implement the engineering construction that volume increase is transformed to the oil gas well, the oil gas well is being implemented in the process of volume increase transformation, in order to reach the design and the needs of well-completing process, the time regular meeting a part of completion tubular column is tripped out pit shaft, another part completion tubular is persistenced in well, in order to realize the requirement of these technologies, in the process of construction, just need to use releasing device, so that finish the mask work of tubing string; In the prior art, the employed structure of giving up of common releasing device is to adopt the mode that pitching is given up, back-off is given up or fluid pressure is given up, these several modes of giving up all have been the common technique devices at present, major defect is: the mode of giving up is single, gives up as using pitching, when high angle hole, directional well or horizontal well use, after steel ball puts in place, therefore and be by rigid metal contact seal between the ball seat, cause poorly sealedly easily that it is unsuccessful finally to cause giving up; Because tubing string is not weighed specially targetedly, therefore use back-off to give up and often be not easy to find the point of neutralization of tubing string, also cause the difficulty of giving up easily; And fluid pressure is given up in the mode, and the factor of down-hole influence is more, and the reliability of releasing gadget is not high.
The content of utility model:
The purpose of this utility model is the deficiency that exists at prior art, has designed multiple releasing gadget on a covering device, provide a kind of and can guarantee that completion tubular column breaks away from smoothly, and the non-interfering multi-way releasing device of the mode of giving up.
The utility model is achieved in that the utility model is made up of bindiny mechanism and releasing gadget, bindiny mechanism comprises top connection 1, adapter sleeve 6 and following tube connector 11, top connection 1 is connected with the upper end of screw thread lock pipe 4, and the lower end of adapter sleeve 6 is connected with following tube connector 11;
Releasing gadget comprises screw thread lock pipe 4, give up the lock pipe 5 and the tapered end 7 of giving up, the upper end of screw thread lock pipe 4 is connected with top connection 1, the lock of giving up is managed 5 lower ends and is connected the tapered end 7 of giving up, be provided with distinguish screw thread 8 in the lower end of screw thread lock pipe 4, each lobe of distinguish screw thread 8 all has inside elastic force, the inner face of distinguish screw thread 8 is supported on the outer round surface of the tapered end 7 of giving up, and the screw thread of distinguish screw thread 8 each lobe cylindrical is threaded with adapter sleeve 6 interior circles;
Be provided with hold-down screw 10 at described adapter sleeve 6 with the position that following tube connector 11 is connected, adapter sleeve 6 upper ends are connected with screw thread lock pipe 4 by screw thread;
Described upper end cylindrical of giving up lock pipe 5 is provided with seal groove, is provided with sealing ring 2 in the seal groove;
At described screw thread lock pipe 4 and give up and be provided with the shear pin 3 of giving up between the lock pipe 5;
Described distinguish screw thread 8 is to be cut the shape and structure that is divided into many lobes;
The external surface of described distinguish screw thread 8 each lobe has screw thread;
It is long-pending to leave an anchor ring in described lock pipe 5 upper ends of giving up, and it is long-pending that an anchor ring is also left in described tapered end 7 lower ends of giving up; The inside, tapered end 7 lower end of giving up is processed with ball seat 12;
The long-pending anchor ring that stays than tapered end 7 lower ends of giving up of anchor ring that described lock pipe 5 upper ends of giving up are stayed is long-pending big;
During on-the-spot the use, after the pressure in the tubing string reaches design load, the downward lock pipe 5 that promotes to give up of the long-pending pressure differential that forms of the long-pending anchor rings with tapered end 7 lower ends of giving up of anchor ring that the lock of giving up is managed 5 upper ends moves, cut off the shear pin 3 of giving up, the promotion tapered end 7 of giving up moves downward, and after surpassing the bottom surface of distinguish screw thread 8, distinguish screw thread 8 just loses the inside shrinkage strain of support force, with be connected pipe box 6 and separate, under the drive of top connection 1, screw thread lock pipe 4, give up the lock pipe 5 and the tapered end 7 of giving up are suggested ground, finish the operation of giving up; If above-mentioned construction of giving up can not lean on fluid pressure successfully to give up, just implement second kind of mode of giving up: earlier to the down-hole pitching, during ball seat 12 positions in ball drops to the tapered end 7 of giving up, seal passage, the long-pending anchor ring with tapered end 7 lower ends of giving up of anchor ring in lock pipe 5 upper ends of giving up amasss and also can form a hydrostatic pressure difference, the downward lock pipe 5 that promotes to give up of hydrostatic pressure difference moves cuts off the shear pin 3 of giving up, the tapered end 7 that promotes simultaneously to give up moves downward, distinguish screw thread 8 is lost give up the support of tapered end 7, during the upper lifting pipe post, distinguish screw thread 8 will produce inside contraction, when distinguish screw thread 8 external diameters during less than the internal diameter of adapter sleeve 6, can be connected pipe box 6 and separate, finish the operation of giving up; If above-mentioned dual mode is not all given up successfully, so just the point of neutralization position with tubing string is adjusted to screw thread lock pipe 4, forward rotation tubing string then, because between distinguish screw thread 8 and the adapter sleeve 6 is that left-hand thread is connected, thereby screw thread lock pipe 4 just gradually from tube connector 6 move back deduction of points from, finish the operation of giving up.
The utility model advantage is: the approach of giving up is many, simple in structure, simple to operation, tubing string is transformed in the segmentation of using this releasing device to form, under the situation that tubing string needs, can at first use the fluid pressure mode to give up, can also use stuff to give up if get nowhere, if all getting nowhere, above-mentioned two kinds of schemes can also use the back-off mode to give up at last, thereby farthest guarantee to trip out smoothly the construction operation tubing string, reserve the treatment channel of next step measure, greatly reduce construction risk.
Description of drawings:
Fig. 1 is the generalized section of the utility model releasing device.
The specific embodiment:
Provide embodiment of the present utility model below in conjunction with accompanying drawing:
Embodiment 1: the utility model is made up of bindiny mechanism and releasing gadget, bindiny mechanism comprises top connection 1, adapter sleeve 6 and following tube connector 11, top connection 1 is connected with the upper end of screw thread lock pipe 4, the lower end of adapter sleeve 6 is connected with following tube connector 11, for fixing needs, be provided with hold-down screw 10 at adapter sleeve 6 with the position that following tube connector 11 is connected, adapter sleeve 6 upper ends are connected with screw thread lock pipe 4 by screw thread;
Releasing gadget comprises screw thread lock pipe 4, give up the lock pipe 5 and the tapered end 7 of giving up; The upper end of screw thread lock pipe 4 is connected with top connection 1, and lock pipe 5 lower ends of giving up connect the tapered end 7 of giving up, and the inside, tapered end 7 lower end of giving up is processed with ball seat 12; The upper end cylindrical of locking pipe 5 of giving up is provided with seal groove, be provided with sealing ring 2 in the seal groove, the screw thread lock pipe 4 and the lock of giving up are provided with the shear pin 3 of giving up between managing 5, be provided with distinguish screw thread 8 in the lower end of screw thread lock pipe 4, distinguish screw thread 8 is to be cut the shape and structure that is divided into many lobes, each lobe of distinguish screw thread 8 all has inside elastic force, external surface at distinguish screw thread 8 each lobe has screw thread, the inner face of distinguish screw thread 8 is supported on the outer round surface of the tapered end 7 of giving up, and the screw thread of distinguish screw thread 8 each lobe cylindrical is threaded with adapter sleeve 6 interior circles; It is long-pending to leave an anchor ring in lock pipe 5 upper ends of giving up that are provided with, and also leave an anchor ring in described tapered end 7 lower ends of giving up long-pending, and the long-pending anchor ring that stays than tapered end 7 lower ends of giving up of the anchor ring that lock pipe 5 upper ends of giving up are stayed is long-pending big;
Embodiment 2: the utility model is according to assembled in sequence once, at first will the give up lower end of lock pipe 5 is connected with the tapered end 7 of giving up, in the seal groove of lock pipe 5 upper ends of giving up, sealing ring 2 is set then, again screw thread lock pipe 4 and the lock pipe 5 of giving up are fixed together by the shear pin 3 of giving up, then with adapter sleeve 6 and screw thread lock pipe 4 by being threaded, then top connection 1 and screw thread lock pipe 4 are coupled together, to descend tube connector 11 and adapter sleeve 6 to link together then, and with the position that following tube connector 11 is connected hold-down screw 10 is set at adapter sleeve 6, so just finished to install and connected work of the present utility model.
Embodiment 3: when site operation uses, because the utility model lower tube string seals, on the utility model, the upper end is because the sealing of sealing ring 2, sealed circle 9 sealings in lower end, so, pressure by the ground input can not move down by the pipe string, can not outwards flow, can only in tubing string, form pressure, after the pressure in the tubing string reaches the force value of design, because it is long-pending long-pending bigger than the anchor ring of staying tapered end 7 lower ends of giving up to stay the anchor ring of lock pipe 5 upper ends of giving up, so, the long-pending anchor rings with tapered end 7 lower ends of giving up of anchor ring of lock pipe 5 upper ends of giving up are long-pending will to form a pressure differential, and this pressure differential can produce a fluid pressure to tapered end 7 directions of giving up, after this fluid pressure reaches certain value, the lock pipe 5 that will promote downwards to give up moves, downward moving makes the lock pipe 5 of giving up cut off the shear pin 3 of giving up again, and the tapered end 7 that promotes to give up moves downward, and tapered end 7 continues to move down when giving up, after surpassing the bottom surface of distinguish screw thread 8, distinguish screw thread 8 has just lost the support force of the tapered end 7 of giving up.During the upper lifting pipe post, distinguish screw thread 8 will produce the elastic deformation of inside contraction, when distinguish screw thread 8 external diameters during less than adapter sleeve 6 internal diameters be connected pipe box 6 and separate, under the drive of top connection 1, screw thread lock pipe 4, give up the lock pipe 5 and the tapered end 7 of giving up are suggested ground, finish the operation of giving up;
Embodiment 4: if the construction of implementing to give up according to the step of embodiment 3 can not lean on fluid pressure successfully to give up, just use second kind of mode of giving up of the present utility model, operation is as follows: earlier to the down-hole pitching, during ball seat 12 positions in ball drops to the tapered end 7 of giving up, can not continue to fall, at this moment, the long-pending anchor ring with tapered end 7 lower ends of giving up of anchor ring in lock pipe 5 upper ends of giving up amasss and will form a hydrostatic pressure difference, under the effect of hydrostatic pressure difference, the lock pipe 5 that will promote downwards to give up moves cuts off the shear pin 3 of giving up, the tapered end 7 that promotes simultaneously to give up moves downward, after the tapered end 7 of giving up moved down bottom surface above distinguish screw thread 8, distinguish screw thread 8 had just lost the support of the tapered end 7 of giving up.During the upper lifting pipe post, distinguish screw thread 8 will produce the elastic deformation of inside contraction, when distinguish screw thread 8 external diameters during less than the internal diameter of adapter sleeve 6, can be connected pipe box 6 and separate, under the drive of top connection 1, screw thread lock pipe 4, the lock pipe 5 of giving up is suggested ground with the tapered end 7 of giving up, and finishes the operation of giving up;
Embodiment 5: if the dual mode of embodiment 3 and 4 is not all given up successfully, so according to the weight of weighing of tubing string, the point of neutralization position of tubing string is adjusted to screw thread lock pipe 4, forward rotation tubing string then, at this moment the positive torque of well head will be delivered to distinguish screw thread 8 places of screw thread lock pipe 4, because between distinguish screw thread 8 and the adapter sleeve 6 is that left-hand thread is connected, thus screw thread lock pipe 4 with regard to gradually from tube connector 6 move back deduction of points from, finish the operation of giving up.
Claims (6)
1. a multi-way releasing device comprises bindiny mechanism and releasing gadget, it is characterized in that: described bindiny mechanism comprises top connection, adapter sleeve and following tube connector, and top connection is connected with the upper end of screw thread lock pipe, and the lower end of adapter sleeve is connected with following tube connector;
Releasing gadget comprises the screw thread lock pipe, give up the lock pipe and the tapered end of giving up, and the upper end of screw thread lock pipe is connected with top connection, and the lock pipe lower end of giving up connects the tapered end of giving up, and is provided with the distinguish screw thread in the lower end of screw thread lock pipe.
2. multi-way releasing device according to claim 1 is characterized in that: be provided with hold-down screw at described adapter sleeve with the position that following tube connector is connected, the adapter sleeve upper end is connected with the screw thread lock pipe by screw thread.
3. multi-way releasing device according to claim 1 is characterized in that: described upper end cylindrical of giving up the lock pipe is provided with seal groove, is provided with sealing ring in the seal groove.
4. multi-way releasing device according to claim 1 is characterized in that: be provided with the shear pin of giving up at the described screw thread lock pipe and the lock of giving up between the pipe.
5. multi-way releasing device according to claim 1 is characterized in that: described distinguish screw thread is cut and is divided into multi-petal shape shape structure, and the external surface of each lobe of distinguish screw thread has screw thread.
6. multi-way releasing device according to claim 1 is characterized in that: the long-pending anchor ring that stays than the tapered end lower end of giving up of anchor ring that the described lock pipe upper end of giving up is stayed is long-pending big, and the inside, tapered end lower end of giving up is processed with ball seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202459103U CN201723189U (en) | 2010-07-02 | 2010-07-02 | Multi-way releasing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202459103U CN201723189U (en) | 2010-07-02 | 2010-07-02 | Multi-way releasing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201723189U true CN201723189U (en) | 2011-01-26 |
Family
ID=43491508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202459103U Expired - Lifetime CN201723189U (en) | 2010-07-02 | 2010-07-02 | Multi-way releasing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201723189U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101871332A (en) * | 2010-07-02 | 2010-10-27 | 中国石油集团川庆钻探工程有限公司井下作业公司 | Multi-way releasing device |
| CN103184842A (en) * | 2011-12-29 | 2013-07-03 | 安东石油技术（集团）有限公司 | Hydraulic suspension packer disconnecting tool and disconnecting method |
| CN103912229A (en) * | 2014-04-01 | 2014-07-09 | 四机赛瓦石油钻采设备有限公司 | Coiled tubing hydraulic releasing device |
-
2010
- 2010-07-02 CN CN2010202459103U patent/CN201723189U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101871332A (en) * | 2010-07-02 | 2010-10-27 | 中国石油集团川庆钻探工程有限公司井下作业公司 | Multi-way releasing device |
| CN101871332B (en) * | 2010-07-02 | 2013-01-30 | 中国石油集团川庆钻探工程有限公司井下作业公司 | Multi-way releasing device |
| CN103184842A (en) * | 2011-12-29 | 2013-07-03 | 安东石油技术（集团）有限公司 | Hydraulic suspension packer disconnecting tool and disconnecting method |
| CN103184842B (en) * | 2011-12-29 | 2015-12-16 | 安东石油技术（集团）有限公司 | Hydraulic suspension packer releasing tool and method of giving up |
| CN103912229A (en) * | 2014-04-01 | 2014-07-09 | 四机赛瓦石油钻采设备有限公司 | Coiled tubing hydraulic releasing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110126 |
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| CX01 | Expiry of patent term |