CN201024907Y - An ultra-strong friction welding oil well pipe - Google Patents
An ultra-strong friction welding oil well pipe Download PDFInfo
- Publication number
- CN201024907Y CN201024907Y CNU2007200211775U CN200720021177U CN201024907Y CN 201024907 Y CN201024907 Y CN 201024907Y CN U2007200211775 U CNU2007200211775 U CN U2007200211775U CN 200720021177 U CN200720021177 U CN 200720021177U CN 201024907 Y CN201024907 Y CN 201024907Y
- Authority
- CN
- China
- Prior art keywords
- oil well
- well pipe
- friction welding
- oil
- pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
The utility model relates to a high intensity friction welding oil well pipe, belonging to the filed of oil extracting device of oil machinery, comprising an oil pipe body and a tip which is externally thickened. The two ends of the oil well pipe body are thickened to make the thickness of the wall of the two ends 1.02 to 3 times thicker than that of the wall of the pipe, and then the two ends are welded in a fractional way with the tip which is thickened outside. The thickness of the wall of the oil pipe friction welding position is increased to ensure that the intensity of the position is larger than that of the oil pipe body so as to overcome the dead-shortcoming that the welding gap of the pure friction welding oil pipe is very weak, so that the breakage accidents of the welding gap area of the friction welding oil pipe can be decreased, thereby prolonging the service life of the oil pipe.
Description
Affiliated technical field
A kind of superhigh intensity friction welding oil well pipe belongs to petroleum machinery oil production equipment field.
Background technology
When oil and gas development, oil well pipe bears the synergy of multiple load at work, greatly reduce the application life of oil well pipe, especially the fracture accident of friction welding oil well pipe welded seam area is the problem that exists during domestic each elephant recovers the oil always, and the problem that therefore solves friction welding oil well pipe weld strength weakness is to improve the key in friction welding oil well pipe life-span.
Summary of the invention
The purpose of this utility model is at the problem that exists in the background technology, a kind of superhigh intensity friction welding oil well pipe is provided, this oil well pipe has not only been strengthened the intensity at friction welding position, and the external upset (EU) termination can and adopt different Technologies for Heating Processing with different materials with body, thereby can reach best functional performance.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of superhigh intensity friction welding oil well pipe comprises oil well pipe body and external upset (EU) termination, the two ends jumping-up of oil well pipe body makes its wall thickness thickening 1.02～3 times for the body wall thickness, carry out friction welding with the external upset (EU) termination again, the wall thickness at oil well pipe friction welding position is thickeied, guaranteed the intensity of the intensity at this position greater than the oil well pipe body, thereby overcome the deadly defect of pure friction welding oil well pipe weld seam weakness, simultaneously, the oil well pipe body can use different materials and heat treatment method to make according to different instructions for uses with the external upset (EU) termination, thereby reaches best result of use.
The beneficial effects of the utility model are, a kind of superhigh intensity friction welding oil well pipe is owing to increased the wall thickness of oil well pipe friction welding position body, improved the intensity at friction welding position, the fracture accident of the soldering oil well casing welded seam area of therefore can reducing friction, thereby the application life of prolongation oil well pipe.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further specified.
Fig. 1 is the structural representation of first embodiment of the utility model.
Fig. 2 is the structural representation of second embodiment of the utility model.
1. external upset (EU) terminations among the figure, 2. weld seam, 3. oil well pipe body, 4. oil well pipe pipe collar.
The specific embodiment
The purpose of this utility model can reach in the following manner:
Fig. 1 is first embodiment of the utility model: a kind of superhigh intensity friction welding oil well pipe is made of oil well pipe body (3) and external upset (EU) termination, two ends (1), the two ends jumping-up of oil well pipe body (3) makes its wall thickness thickening 1.02～3 times for the body wall thickness, carries out friction welding with external upset (EU) termination (1) again.External upset (EU) termination, two ends (1) all has external screw thread.
Fig. 2 is second embodiment of the utility model: a kind of superhigh intensity friction welding oil well pipe is made of with other end oil well pipe box cupling (4) oil well pipe body (3), an end external upset (EU) termination (1), the two ends jumping-up of oil well pipe body (3) makes its wall thickness thickening 1.02～3 times for the body wall thickness, friction welding is carried out in one end and external upset (EU) termination (1), and the other end and oil well pipe pipe collar (4) carry out friction welding.One end external upset (EU) termination (1) has external screw thread, and other end oil well pipe pipe collar (4) has internal thread.
Claims (3)
1. a superhigh intensity friction welding oil well pipe is connected and composed by oil well pipe body (3) and external upset (EU) termination, two ends (1), it is characterized in that: the two ends jumping-up wall thickness thickening of oil well pipe body (3) is connected with external upset (EU) termination, two ends (1).
2. a kind of superhigh intensity friction welding oil well pipe according to claim 1, its feature also is: jumping-up wall thickness thickening in oil well pipe body (3) two ends is 1.02～3 times of the body wall thickness.
3. a kind of superhigh intensity friction welding oil well pipe according to claim 1, its feature also is: the two ends of oil well pipe body (3) can all be to be connected with external upset (EU) termination (1), also can be connected with external upset (EU) termination (1) by an end, the other end is connected with oil well pipe pipe collar (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200211775U CN201024907Y (en) | 2007-04-27 | 2007-04-27 | An ultra-strong friction welding oil well pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200211775U CN201024907Y (en) | 2007-04-27 | 2007-04-27 | An ultra-strong friction welding oil well pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201024907Y true CN201024907Y (en) | 2008-02-20 |
Family
ID=39098764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200211775U Expired - Lifetime CN201024907Y (en) | 2007-04-27 | 2007-04-27 | An ultra-strong friction welding oil well pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201024907Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102174878A (en) * | 2011-02-22 | 2011-09-07 | 梅河口市弘业无缝钢管有限公司 | Special type oil well pipe with changed materials and structural layers at two ends and manufacturing method thereof |
-
2007
- 2007-04-27 CN CNU2007200211775U patent/CN201024907Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102174878A (en) * | 2011-02-22 | 2011-09-07 | 梅河口市弘业无缝钢管有限公司 | Special type oil well pipe with changed materials and structural layers at two ends and manufacturing method thereof |
| CN102174878B (en) * | 2011-02-22 | 2013-04-24 | 梅河口市弘业无缝钢管有限公司 | Manufacturing method of special type oil well pipe with changed materials and structural layers at two ends |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090306 Address after: No. two, No. 560, the Yellow River Road, Shandong, Anhui Province, 256600 Patentee after: Jiuhuan Petroleum Machinery Co., Ltd., Shandong Address before: Zhuzhou Road, Laoshan District of Shandong city of Qingdao province No. 151 high tech park in building 3, Room 301, zip code: 266000 Patentee before: Jiuhuan Machinery Corp. |
|
| ASS | Succession or assignment of patent right |
Owner name: SHANDONG JIUHUAN PETROLEUM MACHINE CO., LTD. Free format text: FORMER OWNER: JIUHUAN MACHINE CO., LTD. Effective date: 20090306 |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080220 |