CN212272049U - Thermal recovery is compensation aggregate unit in pit - Google Patents
Thermal recovery is compensation aggregate unit in pit Download PDFInfo
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- CN212272049U CN212272049U CN201922480273.1U CN201922480273U CN212272049U CN 212272049 U CN212272049 U CN 212272049U CN 201922480273 U CN201922480273 U CN 201922480273U CN 212272049 U CN212272049 U CN 212272049U
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- compensation part
- compensation
- linkage
- thermal recovery
- top connection
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Abstract
The utility model relates to a thermal recovery is compensation aggregate unit in pit, its technical scheme is: including top connection, lower clutch, the top connection top is equipped with the opening, and the centre of top connection is equipped with the outer compensation part of annular space, the inside of outer compensation part in through sealed assembly connection compensation part, interior compensation part be middle annular structure, the afterbody of top connection be equipped with the restriction in the compensation part the top downstream distance's of moving last linkage spacing part, the upper portion of lower clutch be equipped with the restriction in the compensation part the bottom downstream distance's of moving last linkage spacing part, salvage the in-process at the later stage, realize the well instrument just, the reversal tool is threaded off, avoid the oil well to scrap, reduce the operating cost.
Description
Technical Field
The utility model relates to a compensator in the pit is adopted to oil field heat, especially one kind can realize just, the reversal to instrument in the well, a thermal recovery compensation aggregate unit in the pit that makes instrument dropout in the well.
Background
At present, a conventional thermal recovery downhole compensator of an oil field adopts a pin type structure, and when thermal expansion stress exceeds pin stress, the compensator shears a pin to compensate the thermal expansion stress and prevent a pipe column from being damaged; however, the conventional thermal recovery underground compensator is not provided with an anti-rotation device, and in the later fishing process, the problems that tools in the well cannot be disengaged by forward and reverse tools, the oil well is easily scrapped, or the operation cost is increased by overhaul and the like exist.
Disclosure of Invention
The utility model aims at providing a thermal recovery is compensation aggregate unit in pit to the above-mentioned defect that prior art exists, simple structure, safe in utilization, convenient to carry has improved the ability of open-air survival.
The technical scheme is as follows: including top connection, lower clutch, the top connection top is equipped with the opening, and the centre of top connection is equipped with the outer compensation part of annular structure, the internal connection of outer compensation part in the compensation part, interior compensation part be middle annular structure, the afterbody of top connection be equipped with the lower linkage spacing part of compensation part downstream in the restriction, the upper portion of lower clutch be equipped with the upper linkage spacing part of the bottom downstream of compensation part in the restriction.
Preferably, the upper linkage limiting part is provided with an insertion ring, and the lower linkage limiting part is provided with an insertion cylinder which is matched with the insertion ring on the upper linkage limiting part.
Preferably, the inner compensating portion is fixed to the inside of the upper joint by a pin.
Preferably, the upper linkage limiting part is of an annular opening structure and is connected to the tail part of the upper joint through threads.
Preferably, the lower linkage limiting part is of an annular opening structure and is connected to the upper part of the lower joint through threads.
Preferably, the joint of the outer compensation part and the inner compensation part is sealed by a sealing assembly.
Preferably, the top of the upper joint is provided with an annular structure with an opening diameter smaller than that of the inner part of the outer compensation part.
The utility model has the advantages that: the device is used for compensating the deformation of the sand control pipe column caused by axial expansion and creep of the steam injection thermal recovery, preventing the sand control pipe column from generating thermal stress damage, simultaneously designing a linkage device, realizing the forward and reverse rotation of tools in the well,
the tool in the well is released, so that the operation cost is reduced;
by designing a linkage device in the thermal recovery downhole compensator, the linkage device is in a working state when the load of a pipe column is pressed down by about 1 ton, so that forward and reverse rotation tools for the tools in the well are realized, and the tools in the well are released;
in the later stage fishing process, the forward and reverse tools in the well are released, the oil well is prevented from being scrapped, and the operation cost is reduced.
Drawings
FIG. 1 is a schematic structural diagram of the present invention;
in the upper diagram: 1. the joint comprises an upper joint, 2, an outer compensation part, 3, a pin, 4, a sealing assembly, 5, an inner compensation part, 6, an upper linkage limiting part, 7, a lower linkage limiting part and 8, a lower joint.
Detailed Description
The present invention is specifically described below by way of exemplary embodiments. It should be understood, however, that elements, structures and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.
In the description of the present invention, it should be noted that the terms "inside", "outside", "upper", "lower", "front", "rear", and the like indicate orientations or positional relationships based on positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The invention will be further described with reference to the accompanying drawing 1:
example 1:
the utility model comprises an upper joint 1, an outer compensation part 2, a pin 3, a sealing assembly 4, an inner compensation part 5, an upper linkage limiting part 6, a lower linkage limiting part 7 and a lower joint 8, wherein the top of the upper joint 1 is provided with an opening, the middle of the upper joint is provided with the annular outer compensation part 2, the inner compensation part 2 is connected with the inner compensation part 5 through the sealing assembly 4, the inner compensation part 5 is fixed in the upper joint 1 through the pin 3, the inner compensation part 5 is of a middle annular structure, the tail part of the upper joint 1 is provided with the lower linkage limiting part 7 which limits the downward movement of the top end of the inner compensation part 5, the upper linkage limiting part 6 is of an annular opening structure and is connected with the tail part of the upper joint 1 through threads, the upper linkage limiting part is provided with an inserting ring, the lower linkage limiting part is provided with an inserting barrel which is matched with the inserting ring on the upper linkage limiting part, the upper part of the lower joint 8 is provided with an upper linkage limiting part 6 which limits the downward movement of the bottom end of the inner compensation part 5, the lower linkage limiting part 7 is of an annular opening structure and is connected to the upper part of the lower joint 8 through threads, and the joint of the outer compensation part and the inner compensation part is sealed through a sealing assembly.
Further, the top of the upper joint 1 is provided with an opening with a diameter smaller than the diameter of the annular structure inside the outer compensating part 2.
In the normal production process, when the thermal expansion stress exceeds the stress of the pin 3, the inner compensation part 5 shears the pin 3, so that the inner compensation part 5 moves in the cavity of the outer compensation part 2, the thermal expansion stress is compensated, and the pipe column is prevented from being damaged; the sealing assembly 4 plays a role in sealing a gap between the inner pipe compensation part and the outer pipe compensation part, stratum sand or filling sand is prevented from being produced along with liquid flow in the gas injection recovery process, the pipe column is pressed down about 1 ton in load in the later fishing process, the upper linkage limiting part 6 and the lower linkage limiting part 7 are mutually limited and prevented from rotating, and therefore tools in the well are positively and reversely rotated, and the tools in the well are enabled to be released.
The above description is only a preferred embodiment of the present invention, and any person skilled in the art may modify the present invention or modify it into an equivalent technical solution by using the technical solutions described above. Therefore, any simple modifications or equivalent replacements made according to the technical solution of the present invention belong to the scope of the claimed invention as far as possible.
Claims (7)
1. A thermal recovery is compensation aggregate unit in pit, characterized by: including top connection, lower clutch, the top connection top is equipped with the opening, and the centre of top connection is equipped with the outer compensation part of annular structure, the internal connection of outer compensation part in the compensation part, interior compensation part is middle annular structure, the afterbody of top connection be equipped with the lower linkage spacing part of compensation part downstream in the restriction, the upper portion of lower clutch be equipped with the upper linkage spacing part of the bottom downstream of compensation part in the restriction.
2. A thermal recovery downhole compensating linkage as claimed in claim 1 wherein: the upper linkage limiting part is provided with an inserting ring, and the lower linkage limiting part is provided with an inserting cylinder which is matched with the inserting ring on the upper linkage limiting part.
3. A thermal recovery downhole compensating linkage as claimed in claim 1 wherein: the inner compensation part is fixed inside the upper joint through a pin.
4. A thermal recovery downhole compensating linkage as claimed in claim 1 wherein: the upper linkage limiting part is of an annular opening structure and is connected to the tail part of the upper joint through threads.
5. A thermal recovery downhole compensating linkage as claimed in claim 1 wherein: the lower linkage limiting part is of an annular opening structure and is connected to the upper part of the lower joint through threads.
6. A thermal recovery downhole compensating linkage as claimed in claim 1 wherein: the joint of the outer compensation part and the inner compensation part is sealed through a sealing assembly.
7. A thermal recovery downhole compensating linkage as claimed in claim 1 wherein: and an annular structure with an opening diameter smaller than that of the inner part of the outer compensation part is arranged at the top of the upper joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922480273.1U CN212272049U (en) | 2019-12-31 | 2019-12-31 | Thermal recovery is compensation aggregate unit in pit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922480273.1U CN212272049U (en) | 2019-12-31 | 2019-12-31 | Thermal recovery is compensation aggregate unit in pit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212272049U true CN212272049U (en) | 2021-01-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922480273.1U Active CN212272049U (en) | 2019-12-31 | 2019-12-31 | Thermal recovery is compensation aggregate unit in pit |
Country Status (1)
| Country | Link |
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| CN (1) | CN212272049U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116006096A (en) * | 2023-03-27 | 2023-04-25 | 纬达石油装备有限公司 | Safety joint and use method thereof |
-
2019
- 2019-12-31 CN CN201922480273.1U patent/CN212272049U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116006096A (en) * | 2023-03-27 | 2023-04-25 | 纬达石油装备有限公司 | Safety joint and use method thereof |
| CN116006096B (en) * | 2023-03-27 | 2023-05-30 | 纬达石油装备有限公司 | Safety joint and use method thereof |
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