CN211201857U - Easily-fixed WSR sand prevention packer - Google Patents
Easily-fixed WSR sand prevention packer Download PDFInfo
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- CN211201857U CN211201857U CN201921413095.4U CN201921413095U CN211201857U CN 211201857 U CN211201857 U CN 211201857U CN 201921413095 U CN201921413095 U CN 201921413095U CN 211201857 U CN211201857 U CN 211201857U
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- mandrel
- joint
- rubber cylinder
- wsr
- sand control
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Abstract
The utility model discloses an easy fixed WSR sand control packer, including top spindle and shear pin, the one end of top spindle is provided with the top connection, the junction of the one end of top spindle and top connection is provided with O type circle A, one side of top connection is provided with fluting long cylinder end screw, top connection and top spindle pass through fluting long cylinder end screw connection, the outside of top spindle is provided with the packing element, the packing element passes through fluting long cylinder end screw connection with the top connection, the other end of packing element is provided with the slip short circuit, the one end of slip short circuit is provided with the pretension spring; the utility model discloses need not dismouting well head production tree when using, it is more convenient when the installation directly goes into the well to sit through hydraulic pressure and seal, make the seat seal simple reliable, and only need lift when dismantling and directly propose the well head, the utility model discloses simple structure, the stable performance, and the packing element is inside to have the shaping steel skeleton, can be fine must guarantee that the rubber hugs closely the sleeve pipe.
Description
Technical Field
The utility model belongs to the technical field of the packer, concretely relates to WSR sand control packer who easily fixes.
Background
The WSR sand prevention packer is used in an electric pump well completion pipe string and is used for preventing formation sand from affecting an electric pump. The double-cup packer is generally used for sand prevention in a conventional electric pump well completion pipe column, but the outer diameter of the cup packer is large, so that a wellhead Christmas tree cannot be directly passed through, the wellhead Christmas tree needs to be disassembled and assembled when the pipe column is lowered on site, the operation mode has the problem of great potential safety hazard, and the WSR sand prevention packer which is easy to fix is provided for this reason.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an easily fixed WSR sand control packer to solve and to provide in the above-mentioned background art because the packing cup packer external diameter is great, can not directly pass through well head production tree, so that need dismouting well head production tree's problem when the tubular column under the scene.
In order to achieve the above object, the utility model provides a following technical scheme: an easily-fixed WSR sand prevention packer comprises an upper mandrel and a shear pin, wherein an upper joint is arranged at one end of the upper mandrel, an O-shaped ring A is arranged at the joint of one end of the upper mandrel and the upper joint, a slotted long cylindrical end screw is arranged at one side of the upper joint, the upper joint is connected with the upper mandrel through the slotted long cylindrical end screw, a rubber cylinder is arranged on the outer side of the upper mandrel and is connected with the upper joint through the slotted long cylindrical end screw, a sliding short joint is arranged at the other end of the rubber cylinder, a pre-tightening spring is arranged at one end of the sliding short joint, an adjusting sleeve is arranged at one end of the pre-tightening spring, a lower mandrel is arranged at one end of the adjusting sleeve and is fixedly arranged at the other end of the upper mandrel, a piston outer cylinder is arranged on the outer side of one end of the lower mandrel, and an O-shaped ring B is arranged at the, the piston outer cylinder is connected with the sliding short circuit through a shear pin, a rubber cylinder sheath is arranged on the outer side of the piston outer cylinder, a fixed sealing sleeve is arranged at the other end of the piston outer cylinder, an O-shaped ring C is arranged at the joint of one end of the fixed sealing sleeve and the lower mandrel, a stop pin is arranged at the other end of the fixed sealing sleeve, a compression spring is arranged at one end of the stop pin, a compression nut is arranged at one end of the compression spring, a stop sleeve is arranged on the outer side of the other end of the lower mandrel, the stop sleeve is connected with the lower mandrel through the shear pin, O-shaped rings D are arranged on two sides of the shear pin, a ball seat is arranged on the inner wall of the other end.
Preferably, two ends of the pre-tightening spring are respectively connected with the sliding short circuit and the adjusting sleeve, and the pre-tightening spring is axially installed.
Preferably, the rubber cylinder is of a double-layer structure and is fixedly connected with the upper joint in two layers, and the inner layer at one end of the rubber cylinder is fixedly connected with the upper joint.
Preferably, the inner diameter of the upper mandrel is the same as the inner diameter of the lower mandrel.
Preferably, one end of the rubber cylinder sheath is sleeved on the piston outer cylinder, the other end of the rubber cylinder sheath is sleeved on the middle section of the rubber cylinder, and the rubber cylinder sheath slides to one end of the rubber cylinder in a working state.
Preferably, one end of the ball seat is provided with a clamping seat, and the steel ball is clamped on the clamping seat.
Preferably, the rubber cylinder is internally provided with a forming steel skeleton.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the utility model discloses need not dismouting well head production tree when using, it is more convenient when the installation of direct well entering to through hydraulic pressure seat seal, make the seat seal simple and reliable, and only need lift directly and propose the well head when dismantling, the utility model discloses simple structure, the stable performance, and the packing element is inside to have the shaping steel skeleton, can be fine to guarantee the rubber hugs closely the sleeve pipe;
(2) the axial pre-tightening spring is added, so that the elastic loss of the rubber cylinder framework after long-time work can be compensated.
Drawings
FIG. 1 is a schematic structural view of the initial state of the present invention assembled into a well;
FIG. 2 is a schematic view of the structure of the working state of the present invention;
fig. 3 is a schematic view of the mounting structure of the axial pre-tightening spring of the present invention;
in the figure: 1. an upper joint; 2. a rubber cylinder; 3. an upper mandrel; 4. a rubber sleeve sheath; 5. sliding short circuit; 6. pre-tightening the spring; 7. an adjusting sleeve; 8. a piston outer cylinder; 9. a lower mandrel; 10. fixing a sealing sleeve; 11. a stop pin; 12. a blocking sleeve; 13. a ball seat; 14. a compression nut; 15. a compression spring; 16. shearing pins; 17. a steel ball; 18. slotted long cylindrical end screws; 19. o-shaped ring A; 20. an O-shaped ring B; 21. o-shaped ring C; 22. and an O-shaped ring D.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: an easily-fixed WSR sand prevention packer comprises an upper mandrel 3 and a shear pin 16, wherein one end of the upper mandrel 3 is provided with an upper joint 1, the joint of one end of the upper mandrel 3 and the upper joint 1 is provided with an O-shaped ring A19, one side of the upper joint 1 is provided with a slotted long cylindrical end screw 18, the upper joint 1 is connected with the upper mandrel 3 through the slotted long cylindrical end screw 18, the outer side of the upper mandrel 3 is provided with a rubber cylinder 2, the rubber cylinder 2 is connected with the upper joint 1 through the slotted long cylindrical end screw 18, the other end of the rubber cylinder 2 is provided with a sliding short circuit 5, one end of the sliding short circuit 5 is provided with a pre-tightening spring 6, one end of the pre-tightening spring 6 is provided with an adjusting sleeve 7, one end of the adjusting sleeve 7 is provided with a lower mandrel 9, the lower mandrel 9 is fixedly arranged at the other end of the upper mandrel 3, the outer side of one end of the lower mandrel 9 is provided with a piston outer cylinder 8, the, the piston outer cylinder 8 is connected with the sliding short joint 5 through a shear pin 16, a rubber cylinder sheath 4 is arranged on the outer side of the piston outer cylinder 8, a fixed sealing sleeve 10 is arranged at the other end of the piston outer cylinder 8, an O-shaped ring C21 is arranged at the joint of one end of the fixed sealing sleeve 10 and the lower mandrel 9, a stop pin 11 is arranged at the other end of the fixed sealing sleeve 10, a compression spring 15 is arranged at one end of the stop pin 11, a compression nut 14 is arranged at one end of the compression spring 15, a stop sleeve 12 is arranged on the outer side of the other end of the lower mandrel 9, the stop sleeve 12 is connected with the lower mandrel 9 through the shear pin 16, O-shaped rings D22 are arranged on two sides of the shear pin 16, a ball seat 13 is arranged.
In this embodiment, preferably, two ends of the pre-tightening spring 6 are respectively connected with the sliding short joint 5 and the adjusting sleeve 7, and the pre-tightening spring 6 is axially installed, so that elastic loss of the framework of the rubber sleeve 2 after long-time working can be compensated by the elastic force of the pre-tightening spring 6.
In this embodiment, preferably, the packing element 2 is a double-layer structure, and is fixedly connected to the two layers, and the inner layer of one end of the packing element 2 is fixedly connected to the upper joint 1, so that the use effect of the packing element 2 is better.
In this embodiment, preferably, the inner diameter of the upper mandrel 3 is the same as the inner diameter of the lower mandrel 9, so that the upper mandrel 3 and the lower mandrel 9 have better use effects.
In this embodiment, preferably, one end of the rubber cylinder sheath 4 is sleeved on the piston outer cylinder 8, and the other end is sleeved on the middle section of the rubber cylinder 2, and the rubber cylinder sheath 4 slides to one end of the rubber cylinder 2 in a working state, so that the rubber cylinder sheath 4 has a better use effect.
In this embodiment, preferably, an engaging seat is provided at one end of the ball seat 13, and the steel ball 17 is engaged with the engaging seat, so that the steel ball 17 is convenient to use.
In this embodiment, preferably, the inside of the rubber tube 2 is provided with a forming steel skeleton, and the rubber tube 2 has better elasticity.
The utility model discloses a theory of operation and use flow: after the utility model is installed, the installation and fixation and safety protection of the utility model are checked at first, then the utility model can be used, after the pipe column below the packer is connected with the packer, an oil pipe is connected on an upper joint 1 of the packer, after the packer is lowered to pass through a wellhead Christmas tree, a steel ball 17 is thrown into the upper joint 1 at the upper end of the oil pipe, after the upper joint 1 is put into a ball seat 13, a pipeline is connected to carry out hydraulic pressure until the ball seat is knocked off, and after the pressure drops to 0 suddenly, the rubber barrel 2 is opened, then the oil pipe above the packer is disassembled, the pipe column above the packer is connected according to the design pipe column requirement, the pipe column is slowly lowered to a preset position, and the spring is pre-tightened axially, can compensate 2 skeletons of packing element because of long-time work back elastic loss, just so accomplish right the utility model discloses a use, the utility model discloses simple structure, convenience safe in utilization.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides an easy fixed WSR sand control packer, includes upper mandrel (3) and shear pin (16), its characterized in that: an upper joint (1) is arranged at one end of the upper mandrel (3), an O-shaped ring A (19) is arranged at the joint of one end of the upper mandrel (3) and the upper joint (1), a slotted long cylindrical end screw (18) is arranged at one side of the upper joint (1), the upper joint (1) is connected with the upper mandrel (3) through the slotted long cylindrical end screw (18), a rubber cylinder (2) is arranged at the outer side of the upper mandrel (3), the rubber cylinder (2) is connected with the upper joint (1) through the slotted long cylindrical end screw (18), a sliding short joint (5) is arranged at the other end of the rubber cylinder (2), a pre-tightening spring (6) is arranged at one end of the sliding short joint (5), an adjusting sleeve (7) is arranged at one end of the pre-tightening spring (6), a lower mandrel (9) is arranged at one end of the adjusting sleeve (7), and the lower mandrel (9) is fixedly installed at the other end of the upper mandrel (3), a piston outer cylinder (8) is arranged on the outer side of one end of the lower mandrel (9), an O-shaped ring B (20) is arranged at the joint of the piston outer cylinder (8) and the lower mandrel (9), the piston outer cylinder (8) is connected with the sliding short joint (5) through a shear pin (16), a rubber sleeve sheath (4) is arranged on the outer side of the piston outer cylinder (8), a fixed sealing sleeve (10) is arranged at the other end of the piston outer cylinder (8), an O-shaped ring C (21) is arranged at the joint of one end of the fixed sealing sleeve (10) and the lower mandrel (9), a stop pin (11) is arranged at the other end of the fixed sealing sleeve (10), a compression spring (15) is arranged at one end of the stop pin (11), a compression nut (14) is arranged at one end of the compression spring (15), a stop sleeve (12) is arranged on the outer side of the other end of the lower mandrel (9), and the stop sleeve (12) is connected with the lower, o-shaped rings D (22) are arranged on two sides of the shear pin (16), a ball seat (13) is arranged on the inner wall of the other end of the lower mandrel (9), and a steel ball (17) is arranged at one end of the ball seat (13).
2. The easy-to-set WSR sand control packer of claim 1, wherein: two ends of the pre-tightening spring (6) are respectively connected with the sliding short circuit (5) and the adjusting sleeve (7), and the pre-tightening spring (6) is axially installed.
3. The easy-to-set WSR sand control packer of claim 1, wherein: the rubber cylinder (2) is of a double-layer structure and is fixedly connected with two layers, and the inner layer of one end of the rubber cylinder (2) is fixedly connected with the upper joint (1).
4. The easy-to-set WSR sand control packer of claim 1, wherein: the inner diameter of the upper mandrel (3) is the same as that of the lower mandrel (9).
5. The easy-to-set WSR sand control packer of claim 1, wherein: one end of the rubber cylinder sheath (4) is sleeved on the piston outer cylinder (8), the other end of the rubber cylinder sheath is sleeved on the middle section of the rubber cylinder (2), and the rubber cylinder sheath (4) slides to one end of the rubber cylinder (2) in a working state.
6. The easy-to-set WSR sand control packer of claim 1, wherein: one end of the ball seat (13) is provided with a clamping seat, and the steel ball (17) is clamped on the clamping seat.
7. The easy-to-set WSR sand control packer of claim 1, wherein: and a forming steel skeleton is arranged in the rubber cylinder (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921413095.4U CN211201857U (en) | 2019-08-28 | 2019-08-28 | Easily-fixed WSR sand prevention packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921413095.4U CN211201857U (en) | 2019-08-28 | 2019-08-28 | Easily-fixed WSR sand prevention packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211201857U true CN211201857U (en) | 2020-08-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921413095.4U Active CN211201857U (en) | 2019-08-28 | 2019-08-28 | Easily-fixed WSR sand prevention packer |
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| Country | Link |
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| CN (1) | CN211201857U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110454113A (en) * | 2019-08-28 | 2019-11-15 | 库尔勒中油能源技术服务有限公司 | It is a kind of to be easy to fixed WSR sand control packer |
-
2019
- 2019-08-28 CN CN201921413095.4U patent/CN211201857U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110454113A (en) * | 2019-08-28 | 2019-11-15 | 库尔勒中油能源技术服务有限公司 | It is a kind of to be easy to fixed WSR sand control packer |
| CN110454113B (en) * | 2019-08-28 | 2024-03-22 | 库尔勒中油能源技术服务有限公司 | WSR sand control packer easy to fix |
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