CN219711461U - Corrosion-resistant high-performance special threaded heat-insulating oil sleeve - Google Patents
Corrosion-resistant high-performance special threaded heat-insulating oil sleeve Download PDFInfo
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- CN219711461U CN219711461U CN202320551178.XU CN202320551178U CN219711461U CN 219711461 U CN219711461 U CN 219711461U CN 202320551178 U CN202320551178 U CN 202320551178U CN 219711461 U CN219711461 U CN 219711461U
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- sealing
- corrosion
- heat insulation
- pipe body
- male end
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- 238000005260 corrosion Methods 0.000 title claims abstract description 40
- 230000007797 corrosion Effects 0.000 title claims description 15
- 238000007789 sealing Methods 0.000 claims abstract description 111
- 238000009413 insulation Methods 0.000 claims abstract description 39
- 239000012774 insulation material Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 239000004964 aerogel Substances 0.000 claims description 3
- 239000013013 elastic material Substances 0.000 claims description 3
- 239000011810 insulating material Substances 0.000 claims description 3
- 239000003973 paint Substances 0.000 claims description 3
- 239000004593 Epoxy Substances 0.000 claims 1
- 239000003208 petroleum Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 239000007789 gas Substances 0.000 description 4
- 238000005553 drilling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002343 natural gas well Substances 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
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- Thermal Insulation (AREA)
Abstract
The utility model discloses an anti-corrosion high-performance special threaded heat-insulating oil sleeve, which comprises a pipe body, wherein an outer anti-corrosion layer and an inner anti-corrosion layer are respectively arranged on the outer side and the inner side of the pipe body; the two ends of the pipe body are respectively a male end and a female end which are matched for use, and when the pipe is used, the arc-shaped sealing surface, the male end conical sealing surface, the male end connecting screw thread and the male end sealing shoulder are respectively connected with the arc-shaped sealing groove, the female end conical sealing surface, the female end connecting screw thread and the female end sealing shoulder; and a heat insulation structure is arranged in the wall of the pipe body. The utility model is provided with the outer anti-corrosion layer and the inner anti-corrosion layer, so that the anti-corrosion performance is greatly improved; the heat insulation structure is arranged in the wall of the pipe body, so that the heat insulation performance is good; the sealing performance of the utility model is greatly improved, and the sealing structures such as cambered surface sealing, conical surface sealing, sealing ring sealing, joint sealing ring sealing and the like are used in the utility model, so that the sealing performance is improved by combining multiple sealing.
Description
Technical Field
The utility model relates to the technical field of oil casing structures for oil and gas drills, in particular to an anti-corrosion high-performance special threaded heat-insulating oil casing.
Background
The special petroleum pipe is mainly used for drilling oil and gas wells, conveying oil and gas and the like. Petroleum-specific tubing typically includes petroleum drill pipe, petroleum casing, oil extraction pipe, and the like. Among these, petroleum casing is a lifeline that maintains the operation of an oil well. The petroleum casing pipe is one kind of large caliber pipe and has the function of fixing petroleum and natural gas well wall or hole. When in use, the petroleum casing is inserted into the well hole and fixed by cement, so as to ensure the smooth proceeding of the drilling process and the normal operation of the whole oil well after completion.
Currently, the development of oil and gas wells faces many new conditions, and the working conditions are quite complex. Conventional API threaded joints have failed to meet the needs of people, and thus, development of special thread structures is focused in the industry. In addition, the structure of the oil casing is continuously improved in the industry so as to meet the high requirements of the oil casing on the use of heat insulation performance, corrosion resistance and sealing performance in the industry.
Disclosure of Invention
Aiming at the technical problems in the prior art, the utility model aims to provide an anti-corrosion high-performance special threaded heat insulation oil sleeve.
In order to achieve the above purpose, the technical scheme provided by the utility model is as follows:
the corrosion-resistant high-performance special threaded heat-insulating oil sleeve comprises a sleeve body, wherein an outer corrosion-resistant layer and an inner corrosion-resistant layer are respectively arranged on the outer side and the inner side of the sleeve body;
the two ends of the pipe body are respectively a male end and a female end which are matched for use, the male end is internally and sequentially connected with an arc-shaped sealing surface, a male end conical sealing surface, a male end connecting thread and a male end sealing shoulder from the end, the female end is internally and sequentially connected with a female end sealing shoulder, a female end connecting thread, a female end conical sealing surface and an arc-shaped sealing groove from the end, an annular groove is formed in the male end sealing shoulder, and a sealing ring is arranged in the annular groove; when the sealing device is used, the arc sealing surface, the male conical sealing surface, the male connecting screw thread and the male sealing shoulder are respectively connected with the arc sealing groove, the female conical sealing surface, the female connecting screw thread and the female sealing shoulder;
the heat insulation structure comprises an annular heat insulation cavity arranged in the wall of the pipe body, and the heat insulation cavity is filled with heat insulation materials and is of a vacuum structure; a plurality of support rings are uniformly arranged in the heat insulation cavity along the axial interval, and a plurality of through holes are formed in any one of the support rings along the axial direction.
The male end is sleeved with a joint sealing ring, the joint sealing ring is made of elastic materials, the inner ring of the joint sealing ring is connected with the outer side wall of the male end, and the inner ring of the joint sealing ring is sequentially provided with a guide inclined plane and a wavy sealing surface from outside to inside.
Wherein the heat insulating material is aerogel.
Wherein the material of the outer anti-corrosion layer is epoxy resin anti-corrosion paint.
Wherein the joint sealing ring is made of anti-corrosion rubber.
Wherein, the oil casing is a direct connection type oil casing.
Compared with the prior art, the utility model has the beneficial effects that:
1. the utility model is provided with the outer anti-corrosion layer and the inner anti-corrosion layer, so that the anti-corrosion performance is greatly improved;
2. the heat insulation structure is arranged in the wall of the pipe body and comprises an annular heat insulation cavity arranged in the wall of the pipe body, and the heat insulation cavity is filled with heat insulation materials and is of a vacuum structure, so that the heat insulation structure is good in heat insulation performance; in addition, a plurality of support rings are uniformly arranged in the heat insulation cavity along the axial interval, and a plurality of through holes are formed in any support ring along the axial direction, so that the heat insulation cavity can be better supported by the structure, and the deformation of the heat insulation cavity is effectively prevented;
3. the sealing performance of the utility model is greatly improved, and the sealing structures such as cambered surface sealing, conical surface sealing, sealing ring sealing, joint sealing ring sealing and the like are used in the utility model, so that the sealing performance is improved by combining multiple sealing.
Drawings
FIG. 1 is a schematic diagram of a first embodiment of the present utility model;
FIG. 2 is a schematic diagram of the first amplifying section in FIG. 1;
FIG. 3 is a schematic diagram of a second amplifying section in FIG. 1;
FIG. 4 is a schematic diagram of the third amplifying section in FIG. 1;
FIG. 5 is a schematic diagram of a second embodiment of the present utility model;
FIG. 6 is a schematic diagram of the fourth amplifying section in FIG. 5;
in the figure, a third amplifying part 1, a male end connecting thread 2, a male end sealing shoulder 3, a sealing ring 4, an outer anti-corrosion layer 5, a heat insulation cavity 6, a female end sealing shoulder 7, a female end connecting thread 8, a first amplifying part 9, a second amplifying part 11, a female end conical sealing surface 10, an inner anti-corrosion layer 12 and a fourth amplifying part 13, an arc-shaped sealing groove 111, an arc-shaped sealing surface 112, a supporting ring 91, a through hole 92, a joint sealing ring 131, a guiding inclined surface 132 and a wavy sealing surface 133.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
In the description of this patent, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "disposed" are to be construed broadly, and may be fixedly connected, disposed, detachably connected, disposed, or integrally connected, disposed, for example. The specific meaning of the terms in this patent will be understood by those of ordinary skill in the art as the case may be.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
Example 1
Referring to fig. 1-4, an embodiment structure of the present utility model is shown.
The special threaded heat-insulating oil sleeve with corrosion resistance and high performance comprises a pipe body, wherein an outer anti-corrosion layer 5 and an inner anti-corrosion layer 12 are respectively arranged on the outer side and the inner side of the pipe body;
the two ends of the pipe body are respectively a male end and a female end which are matched for use, the male end is internally and sequentially connected with an arc-shaped sealing surface 112, a male end conical sealing surface, a male end connecting thread 2 and a male end sealing shoulder 3 from the end, the female end is internally and sequentially connected with a female end sealing shoulder 7, a female end connecting thread 8, a female end conical sealing surface 10 and an arc-shaped sealing groove 111 from the end, the male end sealing shoulder is provided with an annular groove, and a sealing ring 4 is arranged in the annular groove; when in use, the arc sealing surface 112, the male conical sealing surface, the male connecting screw thread 2 and the male sealing shoulder 3 are respectively connected with the arc sealing groove 111, the female conical sealing surface 10, the female connecting screw thread 8 and the female sealing shoulder 7;
a heat insulation structure is arranged in the wall of the pipe body, the heat insulation structure comprises an annular heat insulation cavity 6 arranged in the wall of the pipe body, and the heat insulation cavity 6 is filled with heat insulation materials and is of a vacuum structure; a plurality of support rings 91 are uniformly arranged in the heat insulation cavity 6 along the axial direction at intervals, and a plurality of through holes 92 are formed in any support ring 91 along the axial direction.
The utility model is provided with the outer anti-corrosion layer and the inner anti-corrosion layer, so that the anti-corrosion performance is greatly improved;
the pipe body is internally provided with the heat insulation structure, the heat insulation structure comprises an annular heat insulation cavity arranged in the wall of the pipe body, the heat insulation cavity is filled with heat insulation materials and is of a vacuum structure, and the heat insulation structure is good in heat insulation performance; in addition, a plurality of support rings are uniformly arranged in the heat insulation cavity along the axial interval, and a plurality of through holes are formed in any support ring along the axial direction, so that the heat insulation cavity can be better supported by the structure, and the deformation of the heat insulation cavity is effectively prevented;
the sealing performance of the utility model is greatly improved, and the sealing structure such as cambered surface sealing, conical surface sealing, sealing ring sealing, joint sealing ring sealing and the like is used in the utility model, so that the sealing performance is improved by combining multiple sealing.
Wherein the heat insulating material is aerogel or other materials in the prior art.
The outer anticorrosive layer 5 is made of epoxy resin anticorrosive paint, and has a good anticorrosive effect.
The oil casing is a direct connection type oil casing, and the oil casing is not required to be connected by using a coupling.
Example two
As shown in fig. 5-6, is an embodiment structure modified from the first embodiment.
In order to solve the sealing problem at the two oil casing joints, in this embodiment, the male end is sleeved with the joint sealing ring 131, the joint sealing ring 131 is made of elastic materials, the inner ring of the joint sealing ring 131 is connected with the outer side wall of the male end, a guiding inclined plane 132 for guiding the installation of the connected oil casing and a wavy sealing surface 133 for improving the sealing capability are sequentially arranged in the inner ring of the joint sealing ring 131 from outside to inside, and the wall of the oil casing can extrude the wavy sealing surface, so that the sealing effect is improved.
The material of the joint sealing ring 131 may be anti-corrosion rubber, and has elasticity and anti-corrosion performance.
The male end connecting thread 2 and the female end connecting thread 8 are in threaded connection, tooth shapes of the male end connecting thread 2 and the female end connecting thread are buttress type, the buttress type of the buttress type is wide in axial load bearing capacity and high in connecting strength.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (6)
1. The corrosion-resistant high-performance special threaded heat-insulating oil sleeve is characterized by comprising a pipe body, wherein an outer corrosion-resistant layer (5) and an inner corrosion-resistant layer (12) are respectively arranged on the outer side and the inner side of the pipe body;
the two ends of the pipe body are respectively a male end and a female end which are matched for use, the male end is internally and sequentially connected with an arc-shaped sealing surface (112), a male end conical sealing surface, a male end connecting thread (2) and a male end sealing shoulder (3) from the end, the female end is internally and sequentially connected with a female end sealing shoulder (7), a female end connecting thread (8), a female end conical sealing surface (10) and an arc-shaped sealing groove (111), the male end sealing shoulder is provided with an annular groove, and a sealing ring (4) is arranged in the annular groove; when the sealing device is used, the arc sealing surface (112), the male conical sealing surface, the male connecting screw thread (2) and the male sealing shoulder (3) are respectively connected with the arc sealing groove (111), the female conical sealing surface (10), the female connecting screw thread (8) and the female sealing shoulder (7);
a heat insulation structure is arranged in the wall of the pipe body, the heat insulation structure comprises an annular heat insulation cavity (6) arranged in the wall of the pipe body, and the heat insulation cavity (6) is filled with heat insulation materials and is of a vacuum structure; a plurality of support rings (91) are uniformly arranged in the heat insulation cavity (6) at intervals along the axial direction, and a plurality of through holes (92) are formed in any support ring (91) along the axial direction.
2. The special threaded heat insulation oil sleeve with corrosion resistance and high performance according to claim 1, wherein the male end is sleeved with a joint sealing ring (131), the joint sealing ring (131) is made of elastic materials, an inner ring of the joint sealing ring (131) is connected with an outer side wall of the male end, and a guide inclined plane (132) and a wavy sealing surface (133) are sequentially arranged on the inner ring of the joint sealing ring (131) from outside to inside.
3. A corrosion resistant high performance special threaded thermal oil bushing according to claim 2, characterized in that the material of the joint sealing ring (131) is anti-corrosive rubber.
4. The corrosion resistant high performance special threaded thermal oil bushing of claim 1, wherein said insulating material is aerogel.
5. The corrosion-resistant high-performance special threaded heat insulation oil sleeve according to claim 1, wherein the material of the outer anti-corrosion layer (5) is epoxy anti-corrosion paint.
6. The corrosion resistant high performance special threaded thermal oil sleeve of claim 1 wherein said oil sleeve is a direct-connect oil sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320551178.XU CN219711461U (en) | 2023-03-21 | 2023-03-21 | Corrosion-resistant high-performance special threaded heat-insulating oil sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320551178.XU CN219711461U (en) | 2023-03-21 | 2023-03-21 | Corrosion-resistant high-performance special threaded heat-insulating oil sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219711461U true CN219711461U (en) | 2023-09-19 |
Family
ID=88014759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320551178.XU Active CN219711461U (en) | 2023-03-21 | 2023-03-21 | Corrosion-resistant high-performance special threaded heat-insulating oil sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219711461U (en) |
-
2023
- 2023-03-21 CN CN202320551178.XU patent/CN219711461U/en active Active
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