CN202090900U - Water injection pipe column protection device - Google Patents
Water injection pipe column protection device Download PDFInfo
- Publication number
- CN202090900U CN202090900U CN2011202011746U CN201120201174U CN202090900U CN 202090900 U CN202090900 U CN 202090900U CN 2011202011746 U CN2011202011746 U CN 2011202011746U CN 201120201174 U CN201120201174 U CN 201120201174U CN 202090900 U CN202090900 U CN 202090900U
- Authority
- CN
- China
- Prior art keywords
- water injection
- pipe
- sealing
- telescoping tube
- injection 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 - Fee Related
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- Pipe Accessories (AREA)
Abstract
The water injection pipe column protection device relates to a protection technology for water injection pipe columns of oil-field oil extraction plants. The water injection pipe column protection device removes a pulling force exerted by an external force on an oil pipe, and avoids dropping and breaking of a pipe column. The water injection pipe column protection device is connected to the upper portion of a packer of the water injection pipe column, the upper end of an upper joint is connected to the oil pipe, the lower end of the upper joint is connected to a seal sliding sleeve which is sleeved on a seal balance pipe, and a seal ring is located in the middle for sealing. The seal sliding sleeve is sleeved on a telescopic pipe, and a seal ring is located in the middle for sealing. A torsion lower joint is in screwed connection with an outer cylinder body and sleeved on the telescopic pipe, and the lower end of the telescopic pipe is connected to the oil pipe. The torsion lower joint is an inner octagonal cylinder, and the telescopic pipe is an outer octagonal cylinder.
Description
One, technical field: the utility model relates to a kind of resist technology on oil recovery factory, the oil field water injection string, especially water injection string protective device.
Two, background technology: water filling is a routine work of oil recovery factory, and the important means of producing on the oil field is present especially, the water injection string of oil recovery factory often takes off disconnected, for guaranteeing ordinary production, must often change tubing string, not only waste lot of manpower and material resources, also bring the hidden danger of greatly keeping the safety in production.By analysis, tubing string bottom oil pipe is anchored on the internal surface of sleeve pipe by packer, and the upper end oil pipe is fixedly on the well head hanger, be rigid connection, when high pressure water injection, oil pipe is in powerful extended state for a long time, the oil pipe at contiguous well head position exceeds its tensile strength, and it is disconnected to cause oil pipe to take off.
Three, summary of the invention: the purpose of this utility model provides a kind of simple in structure, easy to operate water injection string protective device, it eliminates the stretching action power of external force rail, it is disconnected to have avoided tubing string to take off, the purpose of this utility model is to realize like this, it is by top connection, sealing ring, sealing ring, the sealing sliding sleeve, outer cylinder body, the sealing and balancing pipe, the torsion pass lower contact, telescoping tube is formed, this device is connected water injection string packer top, the top connection upper end is connected with oil pipe, its lower end is connected with the sealed sliding cover, the sealed sliding cover is enclosed within on the sealing and balancing pipe, and the centre has sealing ring to seal; The sealed sliding cover is enclosed within on the telescoping tube, and there is the sealing ring sealing centre; The torsion pass lower contact, and is enclosed within on the telescoping tube on outer cylinder body by screwed connection, and the lower end of telescoping tube is connected with oil pipe; The torsion pass lower contact is an interior all directions cylinder; Telescoping tube is outer cylinder from all directions.
During work, have the outer telescoping tube of cylinder from all directions and can move freely in outer cylinder body, the sealing sliding sleeve has guaranteed the seal and pressure bearing performance of this device by sealing ring, sealing ring; Can transmit torsion and the packer that needs the rotation tubing string to set is set smoothly.When external force reached certain load, telescoping tube drive sealed sliding was enclosed within on the sealing and balancing pipe and moves, thereby had compensated the elongation or the contraction of tubing string, and it is disconnected to avoid tubing string to take off.
Four, description of drawings: Fig. 1 is the structural representation of water injection string protective device, among the figure 1, top connection 2, sealing ring 3, sealing ring 4, sealing sliding sleeve 5, outer cylinder body 6, sealing and balancing pipe 7, torsion pass lower contact 8, telescoping tube
Five, the specific embodiment: embodiment 1, the utility model are connected water injection string packer top, and top connection 1 upper end is connected with oil pipe, and its lower end is connected with sealing sliding sleeve 4, and sealing sliding sleeve 4 is enclosed within on the sealing and balancing pipe 6, and the centre has sealing ring 2 to seal; Sealing sliding sleeve 4 is enclosed within on the telescoping tube 8, and there are sealing ring 3 sealings the centre.
Embodiment 2, torsion pass lower contact 7 are interior all directions cylinder; Telescoping tube 8 is outer cylinder from all directions.
Embodiment 3, torsion pass lower contact 7, and are enclosed within on the telescoping tube 8 on outer cylinder body 5 by screwed connection, and the lower end of telescoping tube 8 is connected with oil pipe; Torsion pass lower contact (7), and is enclosed within on the telescoping tube (8) on outer cylinder body (5) by screwed connection, and the lower end of telescoping tube (8) is connected with oil pipe.
Claims (3)
- The water injection string protective device it form by top connection (1), sealing ring (2), sealing ring (3), sealing sliding sleeve (4), outer cylinder body (5), sealing and balancing pipe (6), torsion pass lower contact (7), telescoping tube (8), it is characterized in that: top connection (1) upper end is connected with oil pipe, its lower end is connected with sealing sliding sleeve (4), sealing sliding sleeve (4) is enclosed within on the sealing and balancing pipe (6), and the centre has sealing ring (2) to seal; Sealing sliding sleeve (4) is enclosed within on the telescoping tube (8), and there is sealing ring (3) sealing the centre.
- 2. water injection string protective device according to claim 1 is characterized in that: torsion pass lower contact (7) is an interior all directions cylinder; Telescoping tube (8) is outer cylinder from all directions.
- 3. water injection string protective device according to claim 1 is characterized in that: torsion pass lower contact (7), and is enclosed within on the telescoping tube (8) on outer cylinder body (5) by screwed connection, and the lower end of telescoping tube (8) is connected with oil pipe; Having the outer telescoping tube (8) of cylinder from all directions can move freely in outer cylinder body (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202011746U CN202090900U (en) | 2011-06-15 | 2011-06-15 | Water injection pipe column protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202011746U CN202090900U (en) | 2011-06-15 | 2011-06-15 | Water injection pipe column protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202090900U true CN202090900U (en) | 2011-12-28 |
Family
ID=45365973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202011746U Expired - Fee Related CN202090900U (en) | 2011-06-15 | 2011-06-15 | Water injection pipe column protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202090900U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104879069A (en) * | 2015-05-29 | 2015-09-02 | 中国石油天然气股份有限公司 | Releasing joint capable of realizing telescopic compensation |
-
2011
- 2011-06-15 CN CN2011202011746U patent/CN202090900U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104879069A (en) * | 2015-05-29 | 2015-09-02 | 中国石油天然气股份有限公司 | Releasing joint capable of realizing telescopic compensation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111228 Termination date: 20120615 |