CN204663410U - With the petroleum casing pipe of damping performance - Google Patents
With the petroleum casing pipe of damping performance Download PDFInfo
- Publication number
- CN204663410U CN204663410U CN201520146809.5U CN201520146809U CN204663410U CN 204663410 U CN204663410 U CN 204663410U CN 201520146809 U CN201520146809 U CN 201520146809U CN 204663410 U CN204663410 U CN 204663410U
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- Prior art keywords
- pipe
- buffer layer
- external
- damping performance
- petroleum casing
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Abstract
Problem to be solved in the utility model is: provide a kind of petroleum casing pipe with damping performance, comprise body, described outer surface of tube body is provided with external screw thread, and described inner surface of tube body is provided with internal thread; Described body comprises interior pipe, buffer layer and outer tube; Described interior pipe is round metal tube, its inner surface waxing process; Described buffer layer is round rubber pipe, and external surface and the inner surface of described buffer layer are equipped with Electric thermal smelting belt, and described Electric thermal smelting belt is connected with external power source; Described outer tube is round metal tube, and its external surface is provided with corrosion-inhibiting coating.Beneficial effect is: can effectively reduce the impact of extraneous geological environment on pipe environment by the utility model, and effectively can completely cut off the temperature difference in pipe outside pipe.
Description
Technical field
The utility model relates to a kind of petroleum casing pipe, particularly relates to a kind of petroleum casing pipe with damping performance.
Background technology
Petroleum casing pipe is the steel pipe for supporting oil, the gas well borehole wall, with ensure drilling process carry out with completion after the normal operation of whole oil well.Which floor sleeve pipe every a bite well, according to different drilling depths and geological condition, use.Sleeve pipe will adopt well cementing of cement after going into the well, it from oil pipe, drilling rod is different, cannot reuse, belong to disposable consumable material.So the consumption of sleeve pipe accounts for more than 70% of whole oil well pipe.Sleeve pipe can be divided into by service condition: conduit, surface pipe, protective casing and production string.
Oil pipes is mainly used in the conveying of oil, the probing of gas well and oil, gas.It comprises petroleum drill pipe, petroleum casing pipe, oil pick-up tube.Petroleum drill pipe is mainly used in connecting drill collar and drill bit and transmitting drilling dynamics.Petroleum casing pipe to be mainly used in drilling process and support to the borehole wall after completion, to ensure the normal operation of whole oil well after the carrying out of drilling process and completion.Oil bottom oil well, gas are mainly transported to ground by oil pick-up tube.
Petroleum casing pipe is the lifeline maintaining oil well operation.Because geological conditions is different, down-hole stress is complicated, and tensile, compressive, bending, torsional stress comprehensive function act on body, and this proposes higher requirement to the quality of sleeve pipe itself.Once sleeve pipe itself damages for a certain reason, the underproduction of whole mouth well may be caused, even scrap.
Different grade of steel can be divided into, i.e. J55, K55, N80, L80, C90, T95, P110, Q125, V150 etc. by the intensity sleeve pipe of steel itself.Hole condition, well depth are different, and the grade of steel of employing is also different.Under corrosive environment, also require that sleeve pipe itself has corrosion resistance.Also require that sleeve pipe has anti-collapse property in the place of complex geologic conditions.
Petroleum casing pipe of the prior art due to the material major part of itself be metal tube, when the variation of generation geological condition, outside vibrations then can be delivered in pipe, and then have influence on the environment in pipe.
Utility model content
Problem to be solved in the utility model is: provide a kind of petroleum casing pipe with damping performance.
The technical solution of the utility model is as follows: a kind of petroleum casing pipe with damping performance, comprises body, and described outer surface of tube body is provided with external screw thread, and described inner surface of tube body is provided with internal thread; It is characterized in that: described body comprises interior pipe, buffer layer and outer tube;
Described interior pipe is round metal tube, its inner surface waxing process;
Described buffer layer is round rubber pipe, and external surface and the inner surface of described buffer layer are equipped with Electric thermal smelting belt, and described Electric thermal smelting belt is connected with external power source;
Described outer tube is round metal tube, and its external surface is provided with corrosion-inhibiting coating.
Further, described outer tube outer surface is provided with external screw thread, and described interior pipe internal surface is provided with internal thread.
Further, described external screw thread and internal thread grind through blasting treatment and form.
Further, described corrosion-inhibiting coating is ceramic layer or epoxy resin composite coating.
Further, the external diameter of described interior pipe and the diameter compatible of buffer layer close; The external diameter of described buffer layer and the diameter compatible of outer tube close.
Further, described external screw thread is the screw thread caved inward, and described internal thread is the screw thread of outwardly convex.
Further, described buffer layer is fluorubber.
The beneficial effects of the utility model are: can effectively reduce the impact of extraneous geological environment on pipe environment by the utility model, and effectively can completely cut off the temperature difference in pipe outside pipe.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Wherein: 1, interior pipe, 2, outer tube,
3, buffer layer, 4, Electric thermal smelting belt.
Detailed description of the invention
Below in conjunction with accompanying drawing, brief description is made to detailed description of the invention of the present utility model.
As shown in Figure 1, a kind of petroleum casing pipe with damping performance, comprises body, and described outer surface of tube body is provided with external screw thread, and described inner surface of tube body is provided with internal thread; Described body comprises interior pipe 1, buffer layer 3 and outer tube 2.Described interior pipe 1 is round metal tube, its inner surface waxing process; Described interior pipe 1 inner surface is provided with internal thread, and described internal thread is the screw thread of outwardly convex.Described internal thread grinds through blasting treatment and forms.Described buffer layer 3 is circular fluorine rubber-pipe, and external surface and the inner surface of described buffer layer 3 are equipped with Electric thermal smelting belt 4, and described Electric thermal smelting belt 4 is connected with external power source; Described outer tube 2 is round metal tube, and its external surface is provided with corrosion-inhibiting coating, and described corrosion-inhibiting coating is ceramic layer or epoxy resin composite coating.Described outer tube 2 external surface is provided with external screw thread, and described external screw thread is the screw thread caved inward.Described external screw thread grinds through blasting treatment and forms.The external diameter of described interior pipe 1 and the diameter compatible of buffer layer 3 close; The external diameter of described buffer layer 3 and the diameter compatible of outer tube 2 close.
Working method: be set to by buffer layer 3, between interior pipe 1 and outer tube 2, Electric thermal smelting belt 4 heats, and buffer layer 3 surface is melted, after power-off cooling, together with buffer layer 3 and interior pipe 1 are set in outer tube 2.
Above an embodiment of the present utility model has been described in detail, but described content being only preferred embodiment of the present utility model, can not being considered to for limiting practical range of the present utility model.All equalizations done according to the utility model application range change and improve, and all should still belong within patent covering scope of the present utility model.
Claims (7)
1. with a petroleum casing pipe for damping performance, comprise body, described outer surface of tube body is provided with external screw thread, and described inner surface of tube body is provided with internal thread; It is characterized in that: described body comprises interior pipe (1), buffer layer (3) and outer tube (2);
Described interior pipe (1) is round metal tube, its inner surface waxing process;
Described buffer layer (3) is round rubber pipe, and the external surface of described buffer layer (3) and inner surface are equipped with Electric thermal smelting belt (4), and described Electric thermal smelting belt (4) is connected with external power source;
Described outer tube (2) is round metal tube, and its external surface is provided with corrosion-inhibiting coating.
2. according to claim 1 with the petroleum casing pipe of damping performance, it is characterized in that: described outer tube (2) external surface is provided with external screw thread, described interior pipe (1) inner surface is provided with internal thread.
3. according to claim 1 with the petroleum casing pipe of damping performance, it is characterized in that: described external screw thread and internal thread grind through blasting treatment and form.
4. according to claim 1 with the petroleum casing pipe of damping performance, it is characterized in that: described corrosion-inhibiting coating is ceramic layer or epoxy resin composite coating.
5. according to claim 1 with the petroleum casing pipe of damping performance, it is characterized in that: the external diameter of described interior pipe (1) and the diameter compatible of buffer layer (3) close; The external diameter of described buffer layer (3) and the diameter compatible of outer tube (2) close.
6. according to claim 1 with the petroleum casing pipe of damping performance, it is characterized in that: described external screw thread is the screw thread caved inward, described internal thread is the screw thread of outwardly convex.
7. according to claim 1 with the petroleum casing pipe of damping performance, it is characterized in that: described buffer layer (3) is fluorubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520146809.5U CN204663410U (en) | 2015-03-16 | 2015-03-16 | With the petroleum casing pipe of damping performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520146809.5U CN204663410U (en) | 2015-03-16 | 2015-03-16 | With the petroleum casing pipe of damping performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204663410U true CN204663410U (en) | 2015-09-23 |
Family
ID=54133802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520146809.5U Expired - Fee Related CN204663410U (en) | 2015-03-16 | 2015-03-16 | With the petroleum casing pipe of damping performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204663410U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110439477A (en) * | 2019-07-18 | 2019-11-12 | 中国石油天然气集团有限公司 | A kind of double combination casing of plastic mismatch |
-
2015
- 2015-03-16 CN CN201520146809.5U patent/CN204663410U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110439477A (en) * | 2019-07-18 | 2019-11-12 | 中国石油天然气集团有限公司 | A kind of double combination casing of plastic mismatch |
| CN110439477B (en) * | 2019-07-18 | 2021-09-28 | 中国石油天然气集团有限公司 | Double-layer combined sleeve with mismatched strength |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150923 Termination date: 20160316 |