CN204899836U - Recoverable mechanical packer of single tube - Google Patents
Recoverable mechanical packer of single tube Download PDFInfo
- Publication number
- CN204899836U CN204899836U CN201520724137.1U CN201520724137U CN204899836U CN 204899836 U CN204899836 U CN 204899836U CN 201520724137 U CN201520724137 U CN 201520724137U CN 204899836 U CN204899836 U CN 204899836U
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- slips
- joint
- main mandrel
- packer
- single hose
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Abstract
The utility model discloses a recoverable mechanical packer of single tube, including main dabber, install the last slips subassembly of main spindle and down slips subassembly and suit be located slips subassembly and the joint between the slips subassembly down at main spindle, still including the last lock controlling part of slips and lower slips of control. The utility model discloses recoverable mechanical packer of single tube not only can sit under compression situation and seal but also can sit the state under being drawn, and the annular gap of this packer is little, has high resistance to pressure and leakproofness, is difficult for cassette or wearing and tearing.
Description
Technical field
The utility model relates to a kind of marine petroleum exploitation, downhole petroleum exploitation, Well Completion Engineering of Oil Reservoirs instrument used, is specifically related to the recyclable mechanical packer of a kind of single hose.
Background technology
Packer is in oil drilling, for packing stratum or the utensil of annulus between packing various sizes tubing string and well and between tubing string; Be widely used in the operations such as drilling well, well cementation, test, completion.Packer is as a kind of downhole tool, all functions that it has mainly rely on the sealing function of elastic sealing elements to realize, the sealing function just because of the many spies of packer is oil, the normal production of gas, well and various down-holes technological measure carry out smoothly provide effective mechanical seal means.The bearing capacity of the packer used at present is limited, and safety and operability also Shortcomings, on the one hand in easy phenomenon such as generation deck or wearing and tearing etc. in way of going into the well, packer is damaged, affects normally carrying out of oil well operation; On the other hand because packer annular gap is large, sealing and resistance to pressure are not high.
Utility model content
In order to overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of single hose recyclable mechanical packer, and not only can set in a compressed state but also can set under tension state, the annular gap of this packer is little, there is high resistance to pressure and sealing, not easily deck or wearing and tearing.
For solving the problem, the technical scheme that the utility model adopts is as follows:
The recyclable mechanical packer of a kind of single hose, the joint comprising main mandrel, be arranged on upper slips assembly on main mandrel and lower slips assembly and be sleeved on main mandrel between upper slips assembly and lower slips assembly;
Described main mandrel is provided with " J " type groove, and the upper end of this main mandrel is socketed with connection coupling, and the main mandrel between connection coupling and upper slips assembly is arranged with spring;
Described upper slips assembly comprises the upper slips seat be enclosed within main mandrel, be arranged on upper slips in upper slips seat and upper slips limited block, for extruding the upper slips shell fragment of upper slips and the slips locating cone block for fixing upper slips;
Described joint comprises the isolation rubber be socketed in successively from inside to outside on main mandrel, rubber, is fixed on the rubber limited block of rubber upper end, is fixed on the limited block of rubber lower end, be provided with seal groove below described limited block, install and sealing ring and back-up ring ring in described seal groove; The upper end of described joint is packer adapter, and described packer adapter upper end is socketed in upper slips seat, and the lower end of this joint is for accepting joint;
Described lower slips assembly comprising the lower slips seat be sleeved on main mandrel, being positioned at the lower slips of lower slips seat, for extruding the lower slips shell fragment of lower slips; Described lower slips seat upper end is provided with stopper slot; Described undertaking joint lower end is set in stopper slot, and the main mandrel in lower slips seat is set with sleeve, and the upper end of sleeve is arranged on accepts in joint; Described lower slips seat is also provided with and sets pin for what set lower slips;
The recyclable mechanical packer of described single hose also comprises the lock control part controlling upper slips and lower slips.
Concrete, lock control part described in the utility model is arranged on the main mandrel below lower slips assembly, and this lock control part comprises the lock dog mount pad be sleeved on main mandrel, the lock dog groove be arranged on lock dog mount pad, is arranged on spring leaf in lock dog groove and is positioned at the lock dog that lock dog groove is connected with spring leaf.
In further scheme, lock control part described in the utility model also comprises the lock dog cover being positioned at lock dog outside.
In further scheme, connector exterior described in the utility model is socketed with outer cover.
In further scheme, packer adapter described in the utility model and undertaking joint are taper joint.
In further scheme, in undertaking joint described in the utility model, be provided with communicating pipe.
In further scheme, the recyclable mechanical packer of described single hose described in the utility model also comprises and being arranged on below lock control part in case of emergency closing the emergent shear pin of shutting control.
Compared to existing technology, the beneficial effects of the utility model are:
1. the recyclable mechanical packer of single hose described in the utility model adopts bi-directional slip structure, not only can set but also can complete under tension state setting in a compressed state;
2. single hose described in the utility model recyclable mechanical packer tool pinning can ensure that packer bears from top or the large pressure reduction of transferring;
3. single hose described in the utility model recyclable mechanical packer annular gap is little, improves the resistance to pressure of packer, sealing.
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is the recyclable mechanical packer structural representation of single hose described in the utility model;
Fig. 2 is the lock control part structural representation of the recyclable mechanical packer of single hose described in the utility model;
Wherein, each Reference numeral is: 10, main mandrel; 1, connection coupling; 2, spring; 3, upper slips seat; 4, upper slips; 5, upper slips limited block; 6, upper slips shell fragment; 7, slips locating cone block; 8, rubber is isolated; 9, rubber; 11, rubber limited block; 12, limited block; 13, seal groove; 14, sealing ring; 15, back-up ring ring; 16, packer adapter; 17, joint is accepted; 18, lower slips; 19, lower slips shell fragment; 20, stopper slot; 21, sleeve; 22, pin is set; 23, lock control part; 231, lock dog mount pad; 232, lock dog groove; 233, spring leaf; 234, lock dog; 235, lock dog cover; 24, outer cover; 25, communicating pipe; 26, emergent shear pin.
Detailed description of the invention
As shown in Figure 1, in embodiment 1, the recyclable mechanical packer of single hose described in the utility model, the joint comprising main mandrel 10, be arranged on upper slips assembly on main mandrel 10 and lower slips assembly and be sleeved on main mandrel between upper slips assembly and lower slips assembly;
Described main mandrel is provided with " J " type groove, and the upper end of this main mandrel 10 is socketed with connection coupling 1, and the main mandrel 10 between connection coupling 1 and upper slips assembly is arranged with spring 2;
Described upper slips assembly comprises the upper slips seat 3 be enclosed within main mandrel, be arranged on upper slips 4 in upper slips seat 3 and upper slips limited block 5, for extruding the upper slips shell fragment 6 of upper slips 4 and the slips locating cone block 7 for fixing upper slips 4;
Described joint comprises the isolation rubber 8 be socketed in successively from inside to outside on main mandrel, rubber 9, is fixed on the rubber limited block 11 of rubber 8 upper end, is fixed on the limited block 12 of rubber lower end, be provided with seal groove 13 below described limited block 12, sealing ring 14 and back-up ring ring 15 are installed in described seal groove 13; The upper end of described joint is packer adapter 16, and described packer adapter 16 upper end is socketed in upper slips seat 3, and the lower end of this joint is for accepting joint 17;
Described lower slips assembly comprising the lower slips seat be sleeved on main mandrel, being positioned at the lower slips 18 of lower slips seat, for extruding the lower slips shell fragment 19 of lower slips 18; Described lower slips seat upper end is provided with stopper slot 20; Described undertaking joint 17 lower end is set in stopper slot 20, and the main mandrel 10 in lower slips seat is set with sleeve 21, and the upper end of sleeve 21 is arranged on accepts in joint 17; Described lower slips seat is also provided with and sets pin 22 for setting lower slips;
The recyclable mechanical packer of described single hose also comprises the lock control part 23 controlling upper slips 4 and lower slips 18.
As shown in Figure 2, in embodiment 2, lock control part 23 described in the utility model is arranged on the main mandrel 10 below lower slips assembly, and this lock control part 23 comprises the lock dog mount pad 231 be sleeved on main mandrel 10, the lock dog groove 232 be arranged on lock dog mount pad 231, is arranged on spring leaf 233 in lock dog groove 232 and is positioned at the lock dog 234 that lock dog groove 232 is connected with spring leaf 233.
On the basis of embodiment 1 or embodiment 2, in further scheme, lock control part 23 described in the utility model also comprises the lock dog cover 235 being positioned at lock dog 234 outside.
On the basis of embodiment 1 or embodiment 2, in further scheme, connector exterior described in the utility model is socketed with outer cover 24.
On the basis of embodiment 1 or embodiment 2, in further scheme, packer adapter 16 described in the utility model and accept joint 17 and be taper joint.Concrete, described packer adapter 16 is lower large little taper joint; Accepting joint 17 is up big and down small taper joint.
On the basis of embodiment 1 or embodiment 2, in further scheme, in undertaking joint 17 described in the utility model, be provided with communicating pipe 25.
In further scheme, the recyclable mechanical packer of described single hose described in the utility model also comprises and being arranged on below lock control part 23 in case of emergency closing the emergent shear pin 26 of shutting control 23.
Operating principle of the present utility model is as follows:
When using the utility model, by connecting a upper lifting pipe on connection coupling, and be connected with oil pipe by upper lifting pipe, main mandrel is carried under the upper effect carried, main mandrel pulls lock control part to move upward, lock dog is compressed under the action of the spring, also immediately on move, lock control part moves past in journey and accept joint and can strut lower slips in stopper slot, lower slips and sleeve is made to sting tightly, continuation is carried main mandrel, packer adapter is up struts upper slips limited block, upper slips limited block extruding upper slips shell fragment sets upper slips, upper slips sets rear rubber and moves, rubber is squeezed to expand and compresses lower slips, sleeve coordinates with main stem seal simultaneously, and packer inside is locked, at upper slips assembly, between rubber and lower slips assembly, form the ring cavity up and down sealed.
Above-mentioned embodiment is only preferred embodiment of the present utility model; can not limit the scope of the utility model protection with this, change and the replacement of any unsubstantiality that those skilled in the art does on basis of the present utility model all belong to the utility model scope required for protection.
Claims (7)
1. the recyclable mechanical packer of single hose, the joint comprising main mandrel, be arranged on upper slips assembly on main mandrel and lower slips assembly and be sleeved on main mandrel between upper slips assembly and lower slips assembly, is characterized in that:
Described main mandrel is provided with " J " type groove, and the upper end of this main mandrel is socketed with connection coupling, and the main mandrel between connection coupling and upper slips assembly is arranged with spring;
Described upper slips assembly comprises the upper slips seat be enclosed within main mandrel, be arranged on upper slips in upper slips seat and upper slips limited block, for extruding the upper slips shell fragment of upper slips and the slips locating cone block for fixing upper slips;
Described joint comprises the isolation rubber be socketed in successively from inside to outside on main mandrel, rubber, is fixed on the rubber limited block of rubber upper end, is fixed on the limited block of rubber lower end, be provided with seal groove below described limited block, install and sealing ring and back-up ring ring in described seal groove; The upper end of described joint is packer adapter, and described packer adapter upper end is socketed in upper slips seat, and the lower end of this joint is for accepting joint;
Described lower slips assembly comprising the lower slips seat be sleeved on main mandrel, being positioned at the lower slips of lower slips seat, for extruding the lower slips shell fragment of lower slips; Described lower slips seat upper end is provided with stopper slot; Described undertaking joint lower end is set in stopper slot, and the main mandrel in lower slips seat is set with sleeve, and the upper end of sleeve is arranged on accepts in joint; Described lower slips seat is also provided with the setting pin for setting lower slips;
The recyclable mechanical packer of described single hose also comprises the lock control part controlling upper slips and lower slips.
2. the recyclable mechanical packer of single hose according to claim 1, it is characterized in that: described lock control part is arranged on the main mandrel below lower slips assembly, this lock control part comprises the lock dog mount pad be sleeved on main mandrel, the lock dog groove be arranged on lock dog mount pad, is arranged on spring leaf in lock dog groove and is positioned at the lock dog that lock dog groove is connected with spring leaf.
3. the recyclable mechanical packer of single hose according to claim 2, is characterized in that: described lock control part also comprises the lock dog cover being positioned at lock dog outside.
4. the recyclable mechanical packer of single hose according to claim 1, is characterized in that: described connector exterior is socketed with outer cover.
5. the recyclable mechanical packer of single hose according to claim 1, is characterized in that: described packer adapter and undertaking joint are taper joint.
6. the recyclable mechanical packer of single hose according to claim 1, is characterized in that: be provided with communicating pipe in described undertaking joint.
7. the recyclable mechanical packer of single hose according to claim 1, is characterized in that: the recyclable mechanical packer of described single hose also comprises and being arranged on below lock control part in case of emergency closing the emergent shear pin of shutting control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520724137.1U CN204899836U (en) | 2015-09-17 | 2015-09-17 | Recoverable mechanical packer of single tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520724137.1U CN204899836U (en) | 2015-09-17 | 2015-09-17 | Recoverable mechanical packer of single tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204899836U true CN204899836U (en) | 2015-12-23 |
Family
ID=54922022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520724137.1U Active CN204899836U (en) | 2015-09-17 | 2015-09-17 | Recoverable mechanical packer of single tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204899836U (en) |
-
2015
- 2015-09-17 CN CN201520724137.1U patent/CN204899836U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |