CN201883956U - Glass reinforced plastic downhole pup joint for oil pipe hanger - Google Patents
Glass reinforced plastic downhole pup joint for oil pipe hanger Download PDFInfo
- Publication number
- CN201883956U CN201883956U CN2010205340524U CN201020534052U CN201883956U CN 201883956 U CN201883956 U CN 201883956U CN 2010205340524 U CN2010205340524 U CN 2010205340524U CN 201020534052 U CN201020534052 U CN 201020534052U CN 201883956 U CN201883956 U CN 201883956U
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- China
- Prior art keywords
- oil pipe
- reinforced plastic
- thread
- pup joint
- downhole
- 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 - Fee Related
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- Earth Drilling (AREA)
- Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
Abstract
The utility model provides a glass reinforced plastic downhole pup joint for an oil pipe hanger. The glass reinforced plastic downhole pup joint comprises an upper oil pipe buckle, a diameter variable nozzle stub and a lower oil pipe buckle, wherein the upper oil pipe buckle is arranged at the upper part of the pup joint, the diameter variable nozzle stub is arranged at the middle part of the pup joint, the lower oil pipe buckle is arranged at the lower part of the pup joint, and the pup joint is made of glass reinforced plastic material; the inside diameter of the diameter variable nozzle stub is from 50.3 mm to 88.6 mm; the upper oil pipe buckle is provided threads of 3''-8-10 threads/hour; the lower oil pipe buckle is provided transitional threads of 27/8''-8-10 threads/hour; and taper between the upper oil pipe screw thread and the lower oil pipe thread is from 1:16-1:32; the nozzle stub has the advantages of corrosion prevention, ageing resistance, long service life, leak tightness, strong connection reliability, simple manufacture, and low manufacturing cost.
Description
Technical field
The utility model relates to a kind of oil exploitation special tool, is specifically related to a kind of glass fiber reinforced plastic downhole oil pipe hanger pipe nipple.
Background technology
High-pressure glass steel downhole oil pipe hanger pipe nipple is the metal pipe nipple at present, it uses at the oil well pipe top, finishing tubing hanger is connected with the transition of glass fiber reinforced plastic oil pipe, lost efficacy because the acid of different well liquid, basicity to its seriously corroded, easily cause to connect, flow string integral body is fallen in the well, the workover treatment cycle is short, well workover salvaging difficulty is big, has a strong impact on normal field produces, reduces the application life of glass fiber reinforced plastic oil pipe.
The utility model content
For solving the deficiencies in the prior art, the utility model provides a kind of glass fiber reinforced plastic downhole oil pipe hanger pipe nipple.
Technical solution adopted in the utility model is: a kind of glass fiber reinforced plastic downhole oil pipe hanger pipe nipple, be made up of last tubing thread, reducing short tube, following tubing thread, the top of pipe nipple is last tubing thread, and the middle part is the reducing short tube, the bottom adopts glass-reinforced plastic material to make for following tubing thread, described pipe nipple.
The internal diameter of reducing short tube is: 50.3-88.6mm; Last tubing thread screw thread is: 3 " 8-10 tooth/time screw thread; The transition screw thread of following tubing thread is: the 27/8 " screw thread in 8-10 tooth/time; Tapering between last tubing thread and the following tubing thread screw thread is 1: 16-1: 32.
The beneficial effects of the utility model are: corrosion-resistant anti-aging, long service life, sealing, connection reliability are strong, make simple, low cost of manufacture.
Description of drawings
Accompanying drawing 1 is a structural representation of the present utility model.
Wherein: tubing thread, 2 reducing short tubes, 3 times tubing threads on 1.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As shown in the figure, a kind of glass fiber reinforced plastic downhole oil pipe hanger pipe nipple, by last tubing thread 1, reducing short tube 2, tubing thread 3 is formed down, the top of pipe nipple is last tubing thread 1, and the middle part is a reducing short tube 2, and the bottom is tubing thread 3 down, and described pipe nipple employing glass-reinforced plastic material is made.
The internal diameter of reducing short tube 2 is: 50.3-88.6mm; Last tubing thread 1 screw thread is: 3 " 8-10 tooth/time screw thread; The transition screw thread of following tubing thread 3 is: the 27/8 " screw thread in 8-10 tooth/time; Tapering between last tubing thread 1 and following tubing thread 3 screw threads is 1: 16-1: 32.
Claims (2)
1. glass fiber reinforced plastic downhole oil pipe hanger pipe nipple, by last tubing thread, reducing short tube, tubing thread is formed down, the top that it is characterized in that pipe nipple is last tubing thread, and the middle part is the reducing short tube, and the bottom is tubing thread down, and described pipe nipple employing glass-reinforced plastic material is made.
2. a kind of glass fiber reinforced plastic downhole oil pipe hanger pipe nipple according to claim 1 is characterized in that the internal diameter of reducing short tube is: 50.3-88.6mm; Last tubing thread screw thread is: 3 " 8-10 tooth/time screw thread; The transition screw thread of following tubing thread is: the 27/8 " screw thread in 8-10 tooth/time; Tapering between last tubing thread and the following tubing thread screw thread is 1: 16-1: 32.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205340524U CN201883956U (en) | 2010-09-17 | 2010-09-17 | Glass reinforced plastic downhole pup joint for oil pipe hanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205340524U CN201883956U (en) | 2010-09-17 | 2010-09-17 | Glass reinforced plastic downhole pup joint for oil pipe hanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201883956U true CN201883956U (en) | 2011-06-29 |
Family
ID=44181496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205340524U Expired - Fee Related CN201883956U (en) | 2010-09-17 | 2010-09-17 | Glass reinforced plastic downhole pup joint for oil pipe hanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201883956U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102808586A (en) * | 2012-07-13 | 2012-12-05 | 宝鸡石油钢管有限责任公司 | Continuous oil tube with gradually changed wall thickness and manufacturing method thereof |
| CN102817563A (en) * | 2012-07-13 | 2012-12-12 | 宝鸡石油钢管有限责任公司 | Continuous oil pipe with gradual changing wall thickness and production method for continuous oil pipe |
-
2010
- 2010-09-17 CN CN2010205340524U patent/CN201883956U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102808586A (en) * | 2012-07-13 | 2012-12-05 | 宝鸡石油钢管有限责任公司 | Continuous oil tube with gradually changed wall thickness and manufacturing method thereof |
| CN102817563A (en) * | 2012-07-13 | 2012-12-12 | 宝鸡石油钢管有限责任公司 | Continuous oil pipe with gradual changing wall thickness and production method for continuous oil pipe |
| CN102817563B (en) * | 2012-07-13 | 2015-05-06 | 宝鸡石油钢管有限责任公司 | Continuous oil pipe with gradual changing wall thickness and production method for continuous oil pipe |
| CN102808586B (en) * | 2012-07-13 | 2015-05-06 | 宝鸡石油钢管有限责任公司 | Continuous oil tube with gradually changed wall thickness and manufacturing method thereof |
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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: 20110629 Termination date: 20160917 |