CN214196260U - Hydraulic control drilling-free type well cementation grading hoop - Google Patents
Hydraulic control drilling-free type well cementation grading hoop Download PDFInfo
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- CN214196260U CN214196260U CN202120248621.7U CN202120248621U CN214196260U CN 214196260 U CN214196260 U CN 214196260U CN 202120248621 U CN202120248621 U CN 202120248621U CN 214196260 U CN214196260 U CN 214196260U
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- rubber plug
- fixed sleeve
- injection pipe
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Abstract
The utility model relates to the technical field of oil field cementing tools, in particular to a hydraulic control drilling-free type cementing stage collar, which comprises a fixed sleeve, a movable sleeve, an upper joint and a lower joint; the upper joint is arranged at the top of the fixed sleeve, and the lower joint is arranged at the bottom of the fixed sleeve; the movable sleeve is arranged in the fixed sleeve and is connected with the fixed sleeve in a sliding way along the inner wall of the fixed sleeve; a sealing ring is arranged on the inner wall of the movable sleeve; a rubber plug is arranged in the movable sleeve, a connector is arranged at the top of the rubber plug, and a guide rod is arranged on the connector; the bottom of the rubber plug is provided with a movable plate, and the middle part of the movable plate is provided with a rotating part; the middle part of the rubber plug is provided with a connecting belt; a movable seat is arranged in the rubber plug, a movable rod is arranged at the bottom of the movable seat, and the top of the movable rod is rotationally connected with the movable seat; oil outlets are arranged at the left end and the right end of the movable seat. The utility model discloses a hydraulic oil control rubber buffer need not to bore the inner structure who removes the hierarchical hoop, and it is more convenient to use.
Description
Technical Field
The utility model relates to an oil field cementing tool technical field specifically is a hydraulic control exempts from to bore type well cementation stage hoop.
Background
At present, the grading hoop used on the market is in the well cementation process, the inner part structure of the grading hoop basically needs to be drilled out so as to enable the drift diameter of the grading hoop to be consistent with the drift diameter of a sleeve, but the body of the grading hoop is easily damaged in the process of drilling out the inner structure of the grading hoop, the overall strength and the sealing effect of the grading hoop are seriously affected, switch circulation holes are unreliable, great hidden dangers are buried in the well cementation quality of the grading hoop, the working hours are wasted, the grading hoop cannot be used continuously, and the cost of well drilling operation is high.
In order to solve the problems, the application provides a hydraulic control drilling-free type well cementation grading hoop.
SUMMERY OF THE UTILITY MODEL
Objects of the invention
For solving the technical problem who exists among the background art, the utility model provides a hydraulic control exempts from to bore type well cementation stage hoop has through hydraulic oil control rubber buffer, need not to bore the inner structure who removes stage hoop, uses more convenient characteristics.
(II) technical scheme
In order to solve the technical problem, the utility model provides a hydraulic control drilling-free type well cementation grading hoop, which comprises a fixed sleeve, a movable sleeve, an upper joint and a lower joint;
the upper joint is arranged at the top of the fixed sleeve, and the lower joint is arranged at the bottom of the fixed sleeve; the movable sleeve is arranged in the fixed sleeve and is connected with the fixed sleeve in a sliding way along the inner wall of the fixed sleeve; the fixed sleeve is provided with a plurality of slurry outlet holes; the movable sleeve is provided with a circulation hole;
a sealing ring is arranged on the inner wall of the movable sleeve; a rubber plug is arranged in the movable sleeve, a connector is arranged at the top of the rubber plug, and a guide rod is arranged on the connector; the guide rod is hollow, a liquid injection pipe is arranged in the guide rod, one end of the liquid injection pipe is connected with the hydraulic oil tank, and the other end of the liquid injection pipe extends into the rubber plug; the bottom of the rubber plug is provided with a movable plate, and the middle part of the movable plate is provided with a rotating part;
the middle part of the rubber plug is provided with a connecting belt which is an elastic belt; the rubber plug is divided into a first air bag and a second air bag by the connecting belt; the softness of the second air bag is twice that of the first air bag; a movable seat is arranged in the rubber plug, a movable rod is arranged at the bottom of the movable seat, the top of the movable rod is rotatably connected with the movable seat, and the bottom of the movable rod is rotatably connected with the movable plate; both ends all are provided with the oil-out about the sliding seat, annotate the liquid pipe and are linked together with the oil-out on the sliding seat.
Preferably, the flow holes gradually increase from the inside of the movable sleeve to the outside of the movable sleeve.
Preferably, the bottom of the movable sleeve is provided with a plurality of groups of magnetic attraction columns; the magnetic attraction column is magnetically attracted with the movable plate.
Preferably, a limiting block is arranged on the inner wall of the fixing sleeve, a guide sleeve is arranged at the bottom of the limiting block, and the guide sleeve is connected with the lower connector.
Preferably, the guide sleeve and the lower joint have the same drift diameter.
Preferably, the outer part of the rubber plug is provided with an outer cladding which is in contact with the sealing ring.
Preferably, the liquid injection pipe is an elastic pipe.
The above technical scheme of the utility model has following profitable technological effect:
drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic view of the internal structure of the rubber plug of the present invention;
fig. 3 is a schematic view of the installation position structure of the middle magnetic attraction column of the present invention.
Reference numerals: 1. an upper joint; 2. fixing the sleeve; 3. a slurry outlet; 4. a guide bar; 5. a movable sleeve; 6. a flow-through hole; 7. a seal ring; 8. a rubber plug; 9. a magnetic attraction column; 10. a movable plate; 11. a lower joint; 12. a limiting block; 13. a guide sleeve; 14. a connecting belt; 15. an outer cladding; 16. a first air bag; 17. a second air bag; 18. a rotating member; 19. a liquid injection pipe; 20. a movable seat; 21. an oil outlet; 22. a movable rod.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
As shown in fig. 1-3, the hydraulic control drilling-free type cementing stage collar provided by the utility model comprises a fixed sleeve 2, a movable sleeve 5, an upper joint 1 and a lower joint 11;
the upper joint 1 is arranged at the top of the fixed sleeve 2, and the lower joint 11 is arranged at the bottom of the fixed sleeve 2; the movable sleeve 5 is arranged inside the fixed sleeve 2 and is connected with the fixed sleeve 2 in a sliding way along the inner wall of the fixed sleeve 2; the fixed sleeve 2 is provided with a plurality of slurry outlet holes 3; the movable sleeve 5 is provided with a circulation hole 6;
a sealing ring 7 is arranged on the inner wall of the movable sleeve 5; a rubber plug 8 is arranged in the movable sleeve 5, the top of the rubber plug 8 is provided with a connector, and a guide rod 4 is arranged on the connector; the guide rod 4 is hollow, a liquid injection pipe 19 is arranged in the guide rod 4, one end of the liquid injection pipe 19 is connected with the hydraulic oil tank, and the other end of the liquid injection pipe extends into the rubber plug 8; the bottom of the rubber plug 8 is provided with a movable plate 10, and the middle part of the movable plate 10 is provided with a rotating member 18;
the middle part of the rubber plug 8 is provided with a connecting belt 14, and the connecting belt 14 is an elastic belt; the connecting belt 14 divides the rubber stopper 8 into a first air bag 16 and a second air bag 17; the softness of the second airbag 17 is twice as soft as the first airbag 16; the rubber plug 8 is internally provided with a movable seat 20, the bottom of the movable seat 20 is provided with a movable rod 22, the top of the movable rod 22 is rotatably connected with the movable seat 20, and the bottom of the movable rod 22 is rotatably connected with the movable plate 10; oil outlets 21 are respectively arranged at the left end and the right end of the movable seat 20, and the liquid injection pipe 19 is communicated with the oil outlets 21 on the movable seat 20.
In this embodiment, the flow holes 6 gradually increase in diameter from the inside to the outside of the movable sleeve 5.
It should be noted that the grouting liquid can flow out from the flow hole 6 as the pressure of the grouting liquid is gradually increased.
In this embodiment, the bottom of the movable sleeve 5 is provided with a plurality of sets of magnetic attraction columns 9; the magnetic attraction column 9 and the movable plate 10 are magnetically attracted.
It should be noted that, the plurality of magnetic attraction columns 9 and the movable plate 10 are magnetically attracted to each other, so as to ensure that the movable plate 10 is stably connected with the bottom of the movable sleeve 5.
In this embodiment, a limiting block 12 is disposed on the inner wall of the fixing sleeve 2, a guide sleeve 13 is disposed at the bottom of the limiting block 12, and the guide sleeve 13 is connected with the lower joint 11.
It should be noted that the limiting block 12 limits the movable plate 10.
In this embodiment, the guide sleeve 13 has the same diameter as the lower joint 11.
In this embodiment, the rubber stopper 8 is provided with an outer covering 15 on the outside, and the outer covering 15 is in contact with the packing 7.
In this embodiment, the pouring spout 19 is an elastic spout.
The utility model discloses a theory of operation and use flow: the guide rod 4 is hollow, a liquid injection pipe 19 is arranged in the guide rod 4, one end of the liquid injection pipe 19 is connected with the hydraulic oil tank, and the other end of the liquid injection pipe extends into the rubber plug 8; the rubber plug 8 is internally provided with a movable seat 20, the bottom of the movable seat 20 is provided with a movable rod 22, the top of the movable rod 22 is rotatably connected with the movable seat 20, and the bottom of the movable rod 22 is rotatably connected with the movable plate 10; oil outlets 21 are respectively arranged at the left end and the right end of the movable seat 20, and the liquid injection pipe 19 is communicated with the oil outlets 21 on the movable seat 20; the injection pipe injects hydraulic oil into the rubber plug, and the injection pipe 19 is an elastic pipe; under the action of oil pressure, the movable seat 20 moves downwards, and drives the movable rod 22 to move, so as to unfold the retracted movable plate 10; the movable plate 10 rotates about the rotating member 18 to form a state shown in fig. 2; the expanded rubber plug 8 keeps contact with the sealing ring 7, and the movable plate 10 is magnetically attracted to the magnetic attraction column 9; the movable sleeve 5 and the rubber plug 8 are integrated by magnetic force and friction force; the rubber plug 8 moves to drive the movable sleeve 5 to move; when the circulation hole 6 in the movable sleeve 5 is superposed with the grout outlet 3 on the fixed sleeve 2, the grouting operation can be normally carried out. After the grouting operation is completed, hydraulic oil is extracted, the rubber plug 8 contracts, the movable plate 10 resets simultaneously, and the rubber plug 8 can be easily taken out at the moment. The utility model discloses a hydraulic oil control rubber buffer 8 need not to bore the inner structure who removes the hierarchical hoop, and it is more convenient to use.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (7)
1. A hydraulic control drilling-free well cementation grading hoop is characterized by comprising a fixed sleeve (2), a movable sleeve (5), an upper joint (1) and a lower joint (11);
the upper joint (1) is arranged at the top of the fixed sleeve (2), and the lower joint (11) is arranged at the bottom of the fixed sleeve (2); the movable sleeve (5) is arranged inside the fixed sleeve (2) and is connected with the fixed sleeve (2) in a sliding way along the inner wall of the fixed sleeve; the fixed sleeve (2) is provided with a plurality of slurry outlet holes (3); the movable sleeve (5) is provided with a circulation hole (6);
a sealing ring (7) is arranged on the inner wall of the movable sleeve (5); a rubber plug (8) is arranged in the movable sleeve (5), the top of the rubber plug (8) is provided with a connector, and a guide rod (4) is arranged on the connector; the guide rod (4) is hollow, a liquid injection pipe (19) is arranged in the guide rod (4), one end of the liquid injection pipe (19) is connected with a hydraulic oil tank, and the other end of the liquid injection pipe extends into the rubber plug (8); a movable plate (10) is arranged at the bottom of the rubber plug (8), and a rotating member (18) is arranged in the middle of the movable plate (10);
the middle part of the rubber plug (8) is provided with a connecting belt (14), and the connecting belt (14) is an elastic belt; the rubber stopper (8) is divided into a first air bag (16) and a second air bag (17) by the connecting belt (14); the softness of the second air bag (17) is twice as soft as that of the first air bag (16); a movable seat (20) is arranged in the rubber plug (8), a movable rod (22) is arranged at the bottom of the movable seat (20), the top of the movable rod (22) is rotatably connected with the movable seat (20), and the bottom of the movable rod (22) is rotatably connected with the movable plate (10); oil outlets (21) are respectively arranged at the left end and the right end of the movable seat (20), and the liquid injection pipe (19) is communicated with the oil outlets (21) on the movable seat (20).
2. A hydraulically controlled drill-free cementing stage collar according to claim 1, characterized in that the flow-through holes (6) gradually increase in diameter from the inside to the outside of the movable sleeve (5).
3. The hydraulic control drilling-free type well cementation grading collar as claimed in claim 1, characterized in that the bottom of the movable sleeve (5) is provided with a plurality of sets of magnetic attraction columns (9); the magnetic attraction column (9) and the movable plate (10) are magnetically attracted.
4. The hydraulically controlled drill-free cementing stage collar according to claim 1, characterized in that the inner wall of the fixed sleeve (2) is provided with a stopper (12), the bottom of the stopper (12) is provided with a guide sleeve (13), and the guide sleeve (13) is connected with the lower joint (11).
5. A hydraulically controlled drill-free cementing stage collar according to claim 4, characterized in that the guide sleeve (13) has the same diameter as the lower joint (11).
6. The hydraulically controlled drill-free cementing stage collar according to claim 1, characterized in that the rubber plug (8) is provided with an outer cladding (15) on the outside, the outer cladding (15) being in contact with the sealing ring (7).
7. A hydraulically controlled drill-free cementing stage collar according to claim 1, characterized in that the injection pipe (19) is an elastic pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120248621.7U CN214196260U (en) | 2021-01-28 | 2021-01-28 | Hydraulic control drilling-free type well cementation grading hoop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120248621.7U CN214196260U (en) | 2021-01-28 | 2021-01-28 | Hydraulic control drilling-free type well cementation grading hoop |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214196260U true CN214196260U (en) | 2021-09-14 |
Family
ID=77638415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120248621.7U Active CN214196260U (en) | 2021-01-28 | 2021-01-28 | Hydraulic control drilling-free type well cementation grading hoop |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214196260U (en) |
-
2021
- 2021-01-28 CN CN202120248621.7U patent/CN214196260U/en active Active
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