CN204627450U - A kind of Oil/gas Well steel joint aluminium alloys oil pipe - Google Patents
A kind of Oil/gas Well steel joint aluminium alloys oil pipe Download PDFInfo
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- CN204627450U CN204627450U CN201520224397.2U CN201520224397U CN204627450U CN 204627450 U CN204627450 U CN 204627450U CN 201520224397 U CN201520224397 U CN 201520224397U CN 204627450 U CN204627450 U CN 204627450U
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- oil pipe
- aluminium alloys
- steel
- nipple
- oil
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Abstract
The utility model discloses a kind of Oil/gas Well steel joint aluminium alloys oil pipe, comprise aluminium alloys oil pipe body, the first steel nipple and the second steel nipple; Wherein, the first steel nipple and the second steel nipple are threaded connection at the two ends of aluminium alloys oil pipe body.Further, the two ends of the first steel nipple all offer internal thread, and one end of the second steel nipple offers the internal thread other end and offers external screw thread; Aluminium alloys oil pipe body two ends thicken and offer external screw thread, and are connected by the internal thread of external screw thread with the first steel nipple and the second steel nipple.The utility model oil pipe body is by adopting high, the anti-H 2 S stress corrosion performance of specific strength and resistance to corrosion fatigue aluminium-alloy pipe of good performance, can significantly alleviate tubing string weight, relieve stresses is concentrated, improve the maximum depth of setting, resistance to corrosion fatigue performance etc. of tubing string, reduce because oil pipe lost efficacy the accident caused.
Description
Technical field:
The utility model relates to a kind of oil pipe, particularly a kind of Oil/gas Well steel joint aluminium alloys oil pipe.
Background technology:
Along with the development of petroleum industry, deep-well, ultradeep well, high sour well and horizontal well quantity constantly increase, and operating mode is increasingly sophisticated.Steel oil pipe specific strength is low, and the safety in production of failure accidents to Oil/gas Well such as stress corrosion fracture, fatigue fracture, leakage, overload occurred under complex working condition oil-gas mining condition causes great threat.Aluminium alloys oil pipe specific strength is high, anti-H 2 S stress corrosion performance and resistance to corrosion fatigue functional, significantly can alleviate string weight, relieve stresses is concentrated, improve the maximum depth of setting, resistance to corrosion fatigue performance etc. of tubing string, extend tubing string service life, reduce oil pipe in Oil/gas Well and to lose efficacy the security incident caused.
Utility model content:
Order of the present utility model is to provide a kind of Oil/gas Well steel joint aluminium alloys oil pipe, for solving, existing steel oil pipe specific strength under complex working condition oil-gas mining condition is low, the not good problem of resistance to corrosion fatigue performance, thus improve the operating limit of tubing string, extend tubing string service life, reduce oil pipe in Oil/gas Well and to lose efficacy the security incident caused.
For achieving the above object, the utility model adopts following technical scheme to be achieved:
A kind of Oil/gas Well steel joint aluminium alloys oil pipe, comprises aluminium alloys oil pipe body, the first steel nipple and the second steel nipple; Wherein, the first steel nipple and the second steel nipple are threaded connection at the two ends of aluminium alloys oil pipe body.
The utility model further improves and is: the two ends of aluminium alloys oil pipe body all offer external screw thread.
The utility model further improves and is: the two ends of the first steel nipple all offer internal thread, the internal thread of first steel nipple one end is threaded with between the external screw thread of aluminium alloys oil pipe body one end, and the internal thread of the first steel nipple other end is used for being threaded with the second steel nipple of adjacent Oil/gas Well steel joint aluminium alloys oil pipe.
The utility model further improves and is: one end that the second steel nipple is threaded with aluminium alloys oil pipe body offers internal thread, and the other end offers the external screw thread for being threaded with the first steel nipple of adjacent Oil/gas Well steel joint aluminium alloys oil pipe.
The utility model further improves and is: aluminium alloys oil pipe body and the first steel nipple form over-surplus fit structure by hot charging or cold charge.
The utility model further improves and is: aluminium alloys oil pipe body is connected one end wall thickness with the first steel nipple is greater than the wall thickness of intermediate portion.
The utility model further improves and is: aluminium alloys oil pipe body and the second steel nipple form over-surplus fit structure by hot charging or cold charge.
The utility model further improves and is: aluminium alloys oil pipe body is connected one end wall thickness with the second steel nipple is greater than the wall thickness of intermediate portion.
Compared with prior art, the utility model tool has the following advantages:
A kind of Oil/gas Well steel joint aluminium alloys oil pipe of the utility model, body uses aluminium-alloy pipe, joint uses steel joint, effectively reduce string weight, improve the operating limit of tubing string and decay resistance, prolongation tubing string service life, reduce oil pipe in Oil/gas Well and to lose efficacy the security incident caused.
Further, aluminium alloys oil pipe body is connected one end wall thickness with the second steel nipple is greater than the wall thickness of intermediate portion, thus improves the operating limit of tubing string, extends tubing string service life.
Accompanying drawing illustrates:
Fig. 1 is cross-sectional view of the present utility model.
In figure: 1-first steel nipple, 2-first internal thread, 3-aluminium alloys oil pipe body, 4-second internal thread, 5-second steel nipple.
Detailed description of the invention:
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, a kind of Oil/gas Well steel joint aluminium alloys oil pipe of the utility model, comprises aluminium alloys oil pipe body 3, first steel nipple 1 and the second steel nipple 5; Wherein, the first steel nipple 1 and the second steel nipple 5 are threaded connection at the two ends of aluminium alloys oil pipe body 3.
Wherein, the two ends of aluminium alloys oil pipe body 3 all offer external screw thread, the two ends of the first steel nipple 1 all offer internal thread, first internal thread 2 of first steel nipple 1 one end is threaded with between the external screw thread of aluminium alloys oil pipe body 3 one end, and the internal thread of first steel nipple 1 other end is used for being threaded with the second steel nipple 5 of adjacent Oil/gas Well steel joint aluminium alloys oil pipe; One end that second steel nipple 5 is threaded with aluminium alloys oil pipe body 3 offers the second internal thread 4, the other end offers the external screw thread for being threaded with the first steel nipple 1 of adjacent Oil/gas Well steel joint aluminium alloys oil pipe, and the internal thread of second steel nipple 5 one end is threaded with between the external screw thread of aluminium alloys oil pipe body 3 other end.
Further, aluminium alloys oil pipe body 3 and the first steel nipple 1 form over-surplus fit structure by hot charging or cold charge, and aluminium alloys oil pipe body 3 is connected one end wall thickness with the first steel nipple 1 is greater than the wall thickness of intermediate portion.Aluminium alloys oil pipe body 3 and the second steel nipple 5 form over-surplus fit structure by hot charging or cold charge, and aluminium alloys oil pipe body 3 is connected one end wall thickness with the second steel nipple 5 is greater than the wall thickness of intermediate portion.
Above content is in conjunction with concrete case further detailed description of the utility model; can not assert that detailed description of the invention of the present utility model is only limitted to this; for the utility model person of an ordinary skill in the technical field; without departing from the concept of the premise utility; some simple deduction or replace can also be made, all should be considered as belonging to the utility model by submitted to claims determination scope of patent protection.
Claims (8)
1. an Oil/gas Well steel joint aluminium alloys oil pipe, is characterized in that: comprise aluminium alloys oil pipe body (3), the first steel nipple (1) and the second steel nipple (5); Wherein, the first steel nipple (1) and the second steel nipple (5) are threaded connection at the two ends of aluminium alloys oil pipe body (3).
2. a kind of Oil/gas Well steel joint aluminium alloys oil pipe according to claim 1, is characterized in that: the two ends of aluminium alloys oil pipe body (3) all offer external screw thread.
3. a kind of Oil/gas Well steel joint aluminium alloys oil pipe according to claim 2, it is characterized in that: the two ends of the first steel nipple (1) all offer internal thread, the internal thread of first steel nipple (1) one end is threaded with between the external screw thread of aluminium alloys oil pipe body (3) one end, and the internal thread of first steel nipple (1) other end is used for being threaded with the second steel nipple (5) of adjacent Oil/gas Well steel joint aluminium alloys oil pipe.
4. a kind of Oil/gas Well steel joint aluminium alloys oil pipe according to claim 2, it is characterized in that: one end that the second steel nipple (5) is threaded with aluminium alloys oil pipe body (3) offers internal thread, the other end offers the external screw thread for being threaded with the first steel nipple (1) of adjacent Oil/gas Well steel joint aluminium alloys oil pipe.
5. a kind of Oil/gas Well steel joint aluminium alloys oil pipe according to claim 1, is characterized in that: aluminium alloys oil pipe body (3) and the first steel nipple (1) form over-surplus fit structure by hot charging or cold charge.
6. a kind of Oil/gas Well steel joint aluminium alloys oil pipe according to claim 1 or 5, is characterized in that: aluminium alloys oil pipe body (3) is connected one end wall thickness with the first steel nipple (1) is greater than the wall thickness of intermediate portion.
7. a kind of Oil/gas Well steel joint aluminium alloys oil pipe according to claim 1, is characterized in that: aluminium alloys oil pipe body (3) and the second steel nipple (5) form over-surplus fit structure by hot charging or cold charge.
8. a kind of Oil/gas Well steel joint aluminium alloys oil pipe according to claim 1 or 7, is characterized in that: aluminium alloys oil pipe body (3) is connected one end wall thickness with the second steel nipple (5) is greater than the wall thickness of intermediate portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520224397.2U CN204627450U (en) | 2015-04-14 | 2015-04-14 | A kind of Oil/gas Well steel joint aluminium alloys oil pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520224397.2U CN204627450U (en) | 2015-04-14 | 2015-04-14 | A kind of Oil/gas Well steel joint aluminium alloys oil pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204627450U true CN204627450U (en) | 2015-09-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520224397.2U Active CN204627450U (en) | 2015-04-14 | 2015-04-14 | A kind of Oil/gas Well steel joint aluminium alloys oil pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204627450U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109236194A (en) * | 2018-10-22 | 2019-01-18 | 中国石油天然气集团有限公司 | A kind of steel connector titanium alloy drilling rod |
-
2015
- 2015-04-14 CN CN201520224397.2U patent/CN204627450U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109236194A (en) * | 2018-10-22 | 2019-01-18 | 中国石油天然气集团有限公司 | A kind of steel connector titanium alloy drilling rod |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |