CN210483625U - Oil gas well packing well completion device - Google Patents
Oil gas well packing well completion device Download PDFInfo
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- CN210483625U CN210483625U CN201921118684.XU CN201921118684U CN210483625U CN 210483625 U CN210483625 U CN 210483625U CN 201921118684 U CN201921118684 U CN 201921118684U CN 210483625 U CN210483625 U CN 210483625U
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Abstract
The utility model relates to an oil gas well packer well completion device, which adopts the splicing design of double setting pistons, ensures that the device has higher setting force and simultaneously realizes large drift diameter, and only needs to lift up when deblocking, thereby being more convenient; in addition, first O shape sealing washer, second O shape sealing washer, third O shape sealing washer, fourth O shape sealing washer and fifth O shape sealing washer etc. all set up the downside at the packing element subassembly to can make oil gas well packing completion device is in the pressure setting in-process because the well completion tubular column that first O shape sealing washer etc. are ageing and lead to loses the seal phenomenon.
Description
Technical Field
The utility model relates to an oil gas well operation technical field, more specifically say, relate to an oil gas well packer well completion device.
Background
At present, an ultra-deep oil-gas well is an important means for realizing efficient development of oil-gas reservoirs in northwest regions, the yield is high, but the problems of high bottom temperature, high formation pressure, high well control risk and the like exist, so that the super-deep oil-gas well generally adopts a completion mode of completion of a small well. Moreover, aiming at the completion mode of the slim hole, although the removable completion packer of the slim hole can effectively realize the casing packing completion of the slim hole, the tool drift diameter is large, and the throttling effect in the later yield increasing process is obvious; the tool has the defects of low temperature resistance and compressive strength, influence on construction depth and the like.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model provides a technical problem who solves provides an oil gas well packer well completion device, and it not only can effectively pack off oil gas well sleeve pipe annular space, but also can be high temperature resistant, high pressure resistant, provides the guarantee for the use of ultradeep oil gas well.
In order to solve the above technical problem, the utility model discloses the technical scheme content that adopts specifically as follows:
an oil and gas well packing well completion device comprises an upper mandrel and a lower mandrel connected with the upper mandrel, wherein a pressure ring, an upper slip component, an upper cone, a rubber cylinder component, a lower cone, a lower slip component and a piston are sequentially sleeved on the outer side of the upper mandrel, and a hydraulic cylinder, a setting mandrel and a lower joint are sequentially sleeved on the outer side of the lower mandrel; the upper core shaft is in threaded connection with the upper joint, and the upper slip assembly is connected with the upper core shaft through a first shear pin; the upper cone is connected with the upper slip assembly through a second shear pin; the upper cone is connected with the upper mandrel through a first gauge ring, and the lower cone is connected with the upper mandrel through a second gauge ring; the lower cone is connected with the lower slip assembly through a third shear pin; the setting mandrel is connected with the hydraulic cylinder through a fourth shearing pin, and the setting mandrel is connected with the lower joint through a fifth shearing pin
Preferably, the upper slip assembly comprises an upper slip cylinder, an upper slip is arranged in a clamping groove of the upper slip cylinder, and an upper slip spring is arranged between the upper slip and the upper slip cylinder; the lower slip assembly comprises a lower slip cylinder, a lower slip is arranged in a clamping groove of the lower slip cylinder, the upper slip cylinder is connected with the upper mandrel through a first shearing pin, the upper slip cylinder is connected with the upper cone through a second shearing pin, and the lower slip cylinder is connected with the lower cone through a third shearing pin.
Preferably, the rubber cylinder assembly includes a first end rubber cylinder, a second end rubber cylinder and a middle rubber cylinder arranged between the first end rubber cylinder and the second end rubber cylinder, the first end rubber cylinder, the second end rubber cylinder and the middle rubber cylinder are all sleeved on the upper core shaft, the first end rubber cylinder is arranged on the first gauge ring through a bolt, and the second end rubber cylinder is arranged on the second gauge ring through a bolt.
Preferably, a lock sleeve and a deblocking outer cylinder fixedly connected with the lock sleeve are sleeved on the outer side of the setting mandrel, the lock sleeve is connected with the setting mandrel through a lower lock ring, and the lock sleeve is connected with the hydraulic cylinder through a fourth shearing pin.
Preferably, an unsealing sleeve is sleeved on the outer side of the lower joint, and the unsealing sleeve is connected with the lower joint through a fifth connecting pin.
Preferably, a snap ring is disposed between the decapsulation sleeve and the lower connector.
Preferably, the slip joint further comprises a positioning ring arranged between the upper joint and the upper slip assembly, and the positioning ring is sleeved on the outer side of the upper mandrel through a bolt device.
Preferably, the slip ring further comprises a dustproof ring arranged between the positioning ring and the upper slip assembly, the positioning ring is provided with a first groove used for containing the upper side edge of the dustproof ring, and the upper slip assembly is provided with a second groove used for containing the lower side edge of the dustproof ring.
Preferably, a first O-ring is disposed between the piston and the upper mandrel; and a second O-shaped sealing ring is arranged between the piston and the hydraulic cylinder.
Preferably, a third O-ring is arranged between the setting mandrel and the lower mandrel; a fourth O-shaped sealing ring is arranged between the setting mandrel and the deblocking outer cylinder; and a fifth O-shaped sealing ring is arranged between the deblocking outer cylinder and the lower joint.
Compared with the prior art, the beneficial effects of the utility model reside in that:
1. the utility model discloses an oil gas well packer well completion device adopts two setting piston concatenation designs, has realized big latus rectum when making it guarantee to have higher setting power, moreover, during the deblocking, only need lift can, it is comparatively convenient.
2. The utility model discloses an oil gas well packer well completion device, its first O shape sealing washer, second O shape sealing washer, third O shape sealing washer, fourth O shape sealing washer and fifth O shape sealing washer etc. all set up the downside at the packing element subassembly, thereby can make oil gas well packer well completion device is suppressing and is sat the in-process because the well completion tubular column that first O shape sealing washer etc. are ageing and lead to loses a phenomenon.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more obvious and understandable, the following preferred embodiments are described in detail with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic structural diagram of the packing and completion device for an oil and gas well according to the present invention;
wherein the reference numerals in fig. 1 are:
1. an upper joint; 2. an upper mandrel; 3. a positioning ring; 4. a dust ring; 5. pressing a ring; 6. an upper slip cylinder; 7. an upper slip spring; 8. the slips are put on; 9. an upper cone; 10. a first gauge ring; 11. a first end rubber cylinder; 12. a middle rubber cylinder; 13. a lower cone; 14. an upper lock ring; 15. a slip is put down; 16. a slip cylinder is arranged; 17. a piston; 18. a hydraulic cylinder; 19. a lower mandrel; 20. a lock sleeve; 21. a lower lock ring; 22. setting the mandrel; 23. unsealing the outer cylinder; 24. a lower joint; 25. a snap ring; 26. unpacking; 27. a second gauge ring; 28. a first shear pin; 29. a third shear pin; 30. a fifth shear pin; 31. a first O-ring seal; 32. a second O-ring seal; 33. and a second end rubber cylinder.
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1, the utility model discloses an oil gas well packing completion device, including an upper mandrel 2 and a lower mandrel 19 connected with the upper mandrel 2, the outside of the upper mandrel 2 is sequentially sleeved with a compression ring 5, an upper slip component, an upper cone 9, a rubber cylinder component, a lower cone 13, a lower slip component and a piston 17, and the outside of the lower mandrel 19 is sequentially sleeved with a hydraulic cylinder 18, a setting mandrel 22 and a lower joint 24; the upper mandrel 2 is in threaded connection with the upper joint 1, and the upper slip assembly is connected with the upper mandrel 2 through a first shear pin 28; the upper cone 9 is connected with the upper slip assembly through a second shear pin; the upper cone 9 is connected with the upper mandrel 2 through a first gauge ring 10, and the lower cone 13 is connected with the upper mandrel 2 through a second gauge ring 27; the lower cone 13 is connected to the lower slip assembly by a third shear pin 29; the setting mandrel 22 is connected with the hydraulic cylinder 18 through a fourth shear pin, and the setting mandrel 22 is connected with the lower joint 24 through a fifth shear pin; furthermore, an upper locking ring 14 is arranged between the lower cone 13 and the upper mandrel 2.
Because oil gas well packing completion device includes slips subassembly and slips subassembly down, and it adopts two setting piston concatenation designs, makes oil gas well packing completion device has realized the effect of big lead-through, thereby can ensure oil gas well packing completion device is unanimous with oil pipe at the in-process latus rectum size of being connected, has effectively avoided producing throttling differential pressure because of the reducing and has caused oil gas well packing completion device sits phenomenon such as to seal in advance.
Specifically, the upper slip assembly comprises an upper slip cylinder 6, an upper slip 8 is arranged in a clamping groove of the upper slip cylinder 6, and an upper slip spring 7 is arranged between the upper slip 8 and the upper slip cylinder 6; the lower slip assembly comprises a lower slip cylinder 16, a lower slip 15 is arranged in a clamping groove of the lower slip cylinder 16, the upper slip cylinder 6 is connected with the upper mandrel 2 through a first shearing pin 28, the upper slip cylinder 6 is connected with the upper cone 9 through a second shearing pin, and the lower slip cylinder 16 is connected with the lower cone 13 through a third shearing pin 29.
The rubber tube assembly comprises a first end rubber tube 11, a second end rubber tube 33 and a middle rubber tube 12 arranged between the first end rubber tube 11 and the second end rubber tube 33, the first end rubber tube 11, the second end rubber tube 33 and the middle rubber tube 12 are all sleeved on the upper mandrel 2, the first end rubber tube 11 is arranged on the first gauge ring 10 through a bolt, and the second end rubber tube 33 is arranged on the second gauge ring 27 through a bolt; moreover, the first end rubber tube 11 and the second end rubber tube 33 have a certain protection effect on the middle rubber tube 12.
Specifically, the size of the first gauge ring 10 is larger than that of the first end rubber tube 11, and the size of the second gauge ring 27 is larger than that of the second end rubber tube 33, so that no gap exists between the first end rubber tube 11 and the upper mandrel 2 through the first gauge ring 10, and no gap exists between the second end rubber tube 33 and the upper mandrel 2 through the second gauge ring 27, so as to realize the fixed sealing of the rubber tube assembly.
A lock sleeve 20 and a deblocking outer cylinder 23 fixedly connected with the lock sleeve 20 are sleeved on the outer side of the setting mandrel 22, the lock sleeve 20 is connected with the setting mandrel 22 through a lower lock ring 21, and the lock sleeve 20 is connected with the hydraulic cylinder 18 through a fourth shearing pin.
An unsealing sleeve 26 is sleeved on the outer side of the lower joint 24, and the unsealing sleeve 26 is connected with the lower joint 24 through a fifth connecting pin 30.
A clamping ring 25 is arranged between the decapsulation sleeve 26 and the lower connector 24, so that the decapsulation sleeve 26 is limited by the clamping ring 25.
As a preferred embodiment, the oil and gas well packing completion device further comprises a positioning ring 3 arranged between the upper joint 1 and the upper slip assembly, and the positioning ring 3 is sleeved outside the upper mandrel 2 through a bolt device.
As the preferred embodiment, the oil and gas well packing completion device is still including setting up holding ring 3 with go up dust ring 4 between the slips subassembly, and holding ring 3 is provided with and is used for the holding the first recess of the last side of dust ring 4, it is provided with and is used for the holding to go up the slips subassembly the second recess of the lower side of dust ring 4, specifically, the second recess sets up on the clamping ring 5, during the connection, will the last side of dust ring 4 stretches into in the first recess, the lower side of dust ring 4 stretches into in the second recess, thereby pass through holding ring 3 with clamping ring 5 can with fixing of dust ring 4 the outside of last dabber 2.
A first O-shaped sealing ring 31 is arranged between the piston 17 and the upper mandrel 2; a second O-ring 32 is disposed between the piston 17 and the cylinder 18.
A third O-shaped sealing ring is arranged between the setting mandrel 22 and the lower mandrel 19, and a fourth O-shaped sealing ring is arranged between the setting mandrel 22 and the deblocking outer cylinder 23; a fifth O-ring seal is arranged between the outer unsealing cylinder 23 and the lower joint 24.
Because first O shape sealing washer 31, second O shape sealing washer 32, third O shape sealing washer, fourth O shape sealing washer and fifth O shape sealing washer etc. all set up the downside at the packing element subassembly to can make oil gas well packing completion device is at the pressure setting in-process because first O shape sealing washer 31 etc. are ageing and the completion tubular column that leads to loses the seal phenomenon.
In addition, in order to ensure that the oil and gas well packing completion device has higher high temperature resistance and pressure resistance, the first O-shaped sealing ring 31, the second O-shaped sealing ring 32, the third O-shaped sealing ring, the fourth O-shaped sealing ring and the fifth O-shaped sealing ring are made of CHEMRAZ perfluoroether materials, and the materials can resist the high temperature of 204 ℃ and resist the pressure of 105 MPa.
When setting is carried out, high-pressure liquid pressure acts on the end face of the setting mandrel 22 through the hole of the lower mandrel 19, the fourth shearing pin is sheared by pressing, and the hydraulic cylinder 18 moves upwards and pushes the piston 17 to move towards the direction close to the positioning ring 3; then, the first shear pin 28 is sheared by pressing, the dustproof ring 4 pushes the positioning ring 3 and expands and unfolds the dustproof ring 4, and at the moment, the upper slip cylinder 6 moves upwards to a limit step of the upper mandrel 2; next, the second shear pin is sheared by pressing, and the upper cone 9 continuously moves upwards and props open the upper slip 8; next, the third shear pin 29 is pressed and sheared, at this time, the piston 17 will continue to push the lower cone 13 to continue to move upwards, and then the middle rubber cylinder 12 is pushed to expand and the lower slip 15 is expanded and anchored, and is set in the oil and gas well casing;
when the setting is removed, the oil pipe is decompressed, the oil pipe string connected with the upper part of the oil-gas well packing completion device is lifted, then the fifth shear pin 30 is sheared, at the moment, the upper mandrel 2 and the lower mandrel 19 simultaneously move upwards, and simultaneously, the upper slip cylinder 6 and the lower slip cylinder 16 are respectively driven to move upwards, then the upper slip spring 7 enables the upper slip 8 to shrink, and meanwhile, the middle rubber cylinder 12 shrinks to remove the anchoring.
It should be noted that, in the description of the present invention, the terms "first", "second", "third", "fourth", and "fifth", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
While the embodiments of the present invention have been described with reference to the accompanying drawings, the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many modifications may be made by one skilled in the art without departing from the spirit and scope of the present invention as defined in the appended claims.
Claims (10)
1. An oil and gas well packing completion device is characterized in that: the hydraulic setting device comprises an upper mandrel and a lower mandrel connected with the upper mandrel, wherein a compression ring, an upper slip assembly, an upper cone, a rubber cylinder assembly, a lower cone, a lower slip assembly and a piston are sequentially sleeved on the outer side of the upper mandrel, and a hydraulic cylinder, a setting mandrel and a lower connector are sequentially sleeved on the outer side of the lower mandrel; the upper core shaft is in threaded connection with the upper joint, and the upper slip assembly is connected with the upper core shaft through a first shear pin; the upper cone is connected with the upper slip assembly through a second shear pin; the upper cone is connected with the upper mandrel through a first gauge ring, and the lower cone is connected with the upper mandrel through a second gauge ring; the lower cone is connected with the lower slip assembly through a third shear pin; the setting mandrel is connected with the hydraulic cylinder through a fourth shearing pin, and the setting mandrel is connected with the lower joint through a fifth shearing pin.
2. An oil and gas well packing completion device as claimed in claim 1, wherein: the upper slip component comprises an upper slip cylinder, an upper slip is arranged in a clamping groove of the upper slip cylinder, and an upper slip spring is arranged between the upper slip and the upper slip cylinder; the lower slip assembly comprises a lower slip cylinder, a lower slip is arranged in a clamping groove of the lower slip cylinder, the upper slip cylinder is connected with the upper mandrel through a first shearing pin, the upper slip cylinder is connected with the upper cone through a second shearing pin, and the lower slip cylinder is connected with the lower cone through a third shearing pin.
3. An oil and gas well packing completion device as claimed in claim 2, wherein: the packing element subassembly includes first end packing element, second end packing element and sets up first end packing element with well packing element between the second end packing element, first end packing element second end packing element and well packing element all overlap and establish go up the spindle, and first end packing element passes through bolt device first rule ring, second end packing element passes through bolt device the second rule ring.
4. An oil and gas well packing completion device as claimed in claim 1, wherein: the outer side cover of setting dabber be equipped with the lock sleeve and with lock sleeve fixed connection's deblocking urceolus, the lock sleeve is connected through lower lock ring the setting dabber, and the lock sleeve is through fourth shear pin joint the hydraulic cylinder.
5. An oil and gas well packing completion device as claimed in claim 1, wherein: the outside cover of lower clutch is equipped with the deblocking cover, the deblocking cover passes through the fifth connecting pin and connects the lower clutch.
6. An oil and gas well packing completion device as claimed in claim 5, wherein: a snap ring is arranged between the decapsulation sleeve and the lower joint.
7. An oil and gas well packing completion device as claimed in claim 1, wherein: the slip joint is characterized by further comprising a positioning ring arranged between the upper joint and the upper slip assembly, and the positioning ring is sleeved on the outer side of the upper mandrel through a bolt device.
8. An oil and gas well packing completion device as claimed in claim 7, wherein: still including setting up the holding ring with go up the dust ring between the slips subassembly, and the holding ring is provided with and is used for the holding the first recess of the last side of dust ring, it is provided with and is used for the holding to go up the slips subassembly the second recess of the lower side of dust ring.
9. An oil and gas well packing completion assembly according to any one of claims 1 to 8, wherein: a first O-shaped sealing ring is arranged between the piston and the upper mandrel; and a second O-shaped sealing ring is arranged between the piston and the hydraulic cylinder.
10. An oil and gas well packing completion device according to claim 5 or 6, wherein: a third O-shaped sealing ring is arranged between the setting mandrel and the lower mandrel; a fourth O-shaped sealing ring is arranged between the setting mandrel and the deblocking outer cylinder; and a fifth O-shaped sealing ring is arranged between the deblocking outer cylinder and the lower joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921118684.XU CN210483625U (en) | 2019-07-17 | 2019-07-17 | Oil gas well packing well completion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921118684.XU CN210483625U (en) | 2019-07-17 | 2019-07-17 | Oil gas well packing well completion device |
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| Publication Number | Publication Date |
|---|---|
| CN210483625U true CN210483625U (en) | 2020-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921118684.XU Active CN210483625U (en) | 2019-07-17 | 2019-07-17 | Oil gas well packing well completion device |
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| CN (1) | CN210483625U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110259408A (en) * | 2019-07-17 | 2019-09-20 | 中石化石油工程技术服务有限公司 | A kind of oil/gas well packing completion system |
-
2019
- 2019-07-17 CN CN201921118684.XU patent/CN210483625U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110259408A (en) * | 2019-07-17 | 2019-09-20 | 中石化石油工程技术服务有限公司 | A kind of oil/gas well packing completion system |
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