CN202250051U - Compression type oil pipe leakage checking switch - Google Patents
Compression type oil pipe leakage checking switch Download PDFInfo
- Publication number
- CN202250051U CN202250051U CN 201120404091 CN201120404091U CN202250051U CN 202250051 U CN202250051 U CN 202250051U CN 201120404091 CN201120404091 CN 201120404091 CN 201120404091 U CN201120404091 U CN 201120404091U CN 202250051 U CN202250051 U CN 202250051U
- Authority
- CN
- China
- Prior art keywords
- pipe
- sand washing
- sliding sleeve
- cross over
- thread
- 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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- Examining Or Testing Airtightness (AREA)
Abstract
The utility model relates to a compression type oil pipe leakage checking switch. A lower thread of an upper joint is connected with an upper thread of a communication pipe, the connection pipe is provided with a communication hole in which a sliding bushing and a supporting spring are arranged, the sliding bushing covers the communication hole, an upper seal ring and a lower seal ring are sleeved on the sliding bushing, a supporting spring base is arranged on an inner shoulder at the lower part of the communication pipe, the upper end face of the supporting spring supports the sliding bushing, the lower end face of the upper joint presses the sliding bushing, a valve ball base is arranged on a valve port at the lower part of the communication pipe, the outer thread of the communication pipe is connected with the inner thread of a lower joint, an annular channel is formed between the communication pipe and the lower joint, an oil pipe inner thread is formed at the upper part of the upper joint, an oil pipe outer thread is formed at the lower part of the lower joint, and the diameter of a valve ball is smaller than the inner diameter of the sliding bushing. The compression type oil pipe leakage checking switch can be used for checking a sand washing pipe lowered into a well, simply and accurately checking out a leakage part of the sand washing pipe, facilitating the analysis of the reason to abnormal sand washing, and avoiding sand washing failure and sand washing pipe blockage caused by the leakage of the sand washing pipe; and the sliding bushing is supported by the supporting spring and easily moves downwards after compressing the supporting spring, so that the compression type oil pipe leakage checking switch is reliable in work and convenient to use.
Description
Technical field
The utility model belongs to the underground equipment that oil well repairing operation is used, and is a kind of compression oil sand washing pipe switch.
Background technology
In the oil-water well well workover, often need carry out shaft bottom sand washing operation, carrying out this operation is after descending the sand washing oil pipe more than the sand face of shaft bottom, in the sand washing oil pipe, to squeeze into sand cleaning fluid, sand cleaning fluid has dashed sand from oil casing annular space and has returned out.The on-the-spot sand washing oil pipe that uses is a pressure testing oil pipe not, some is arranged with the also together G.I.H sand washing of the indiscoverable defective sand washing oil pipe of commonsense method, causes sand cleaning fluid to return out from the oil pipe leakage, sand cleaning fluid to not Sha Mianchu, therefore dash do not shake out next.The sand clean out pipe that has is about to damaged; When sand clean out pipe has leak source; Because of pressure raises, sand clean out pipe will break from being about to breakage in the sand washing way, and sand cleaning fluid returns out from rent; Cause and dash in the following oil casing annular space of rent that the sand that does not also return out ground sinks and stuck sand washing oil pipe causes the Important Project accident.
Summary of the invention
The purpose of the utility model is a kind of compression oil of design sand washing pipe switch, makes it can verify whether the sand washing oil pipe misses, and opens conveniently.
The purpose of the utility model is achieved in that and comprises top connection, cross over pipe, upper sealing ring, sliding sleeve, lower sealing ring, support spring, valve ball, lower contact, is threaded on screw thread and the cross over pipe under the top connection, and linked hole is arranged on the cross over pipe; Sliding sleeve, support spring are installed in the cross over pipe, and sliding sleeve covers linked hole, suit upper sealing ring and lower sealing ring on the sliding sleeve; Upper sealing ring is on the linked hole, and lower sealing ring is under the linked hole, and the support spring seat is in the cross over pipe bottom on the shoulder; Sliding sleeve is supported in the support spring upper surface; Sliding sleeve is pushed down in the top connection lower surface, and the valve ball seat is on the valve port of cross over pipe bottom, and the external screw thread of cross over pipe is connected with the internal thread of lower contact; Form the circular passage between cross over pipe and the lower contact; The oil pipe internal thread is arranged at top connection top, and oil tube external thread is arranged at the lower contact bottom, and the diameter of valve ball is less than sliding sleeve internal diameter.
The beneficial effect of the utility model is: can test to the sand clean out pipe of G.I.H, can simply check out accurately sand clean out pipe leakage position, the convenient abnormal reason of sand washing of analyzing; Avoid the sand clean out pipe leakage to cause the unsuccessful and sand card sand clean out pipe of sand washing, sliding sleeve is supported by support spring, and sliding sleeve compression spring is descending; Sliding sleeve is descending easily; Therefore, reliable operation, easy to use.
Description of drawings
Fig. 1 is the assembling drawing of the utility model.
The specific embodiment
Below in conjunction with Fig. 1 the embodiment of the utility model is described.
Comprise top connection 1, cross over pipe 2, upper sealing ring 3, sliding sleeve 5, lower sealing ring 6, support spring 7, valve ball 9, lower contact 10, be threaded on 1 time screw thread of top connection and the cross over pipe 2 that linked hole 4 is arranged on the cross over pipe 2; Sliding sleeve 5, support spring 7 are installed in the cross over pipe 2, and sliding sleeve 5 covers linked hole 4, suit upper sealing ring 3 and lower sealing ring 6 on the sliding sleeve 5; Upper sealing ring 3 is on the linked hole 4, and lower sealing ring 6 is under the linked hole 4, and 7 of support springs are in cross over pipe 2 bottoms on the shoulder; Sliding sleeve 5 is supported in support spring 7 upper surfaces, and sliding sleeve 5 is pushed down in top connection 1 lower surface, and 9 of valve balls are on the valve port of cross over pipe 2 bottoms; The external screw thread of cross over pipe 2 is connected with the internal thread of lower contact 10; Form circular passage 8 between cross over pipe 2 and the lower contact 10, the oil pipe internal thread is arranged at top connection 1 top, and oil tube external thread is arranged at lower contact 10 bottoms; The diameter of valve ball 9 is less than the internal diameter of sliding sleeve 5, so that valve ball 9 can be located on the valve port of cross over pipe 2 bottoms through sliding sleeve 5 when dropping into.
During following sand clean out pipe, earlier the valve ball in the utility model 9 is taken out, connect in the bottom of sand washing tubing string again, sand cleaning fluid can install downward sand washing through this smoothly.During sand washing, water is fast if oil casing annular space returns, sand dashes not go down, and just can suspect that sand clean out pipe leaks.Valve ball 9 is dropped in sand clean out pipe, and valve ball 9 is located on the valve port of cross over pipe 2 bottoms after through sliding sleeve 5, and blocking channel makes the sand clean out pipe on the utility model airtight, then to the sand clean out pipe pressure testing.Do not rise like pressure test pressure, explain that sand clean out pipe leaks, need to propose sand clean out pipe.Near several sand clean out pipe that the place that liquid level is arranged in mentioning sand clean out pipe, scrutiny are here just can be found out the leakage oil pipe, need not check all sand clean out pipe that propose, and therefore can simply check out accurately sand clean out pipe leakage position.Sand clean out pipe below the liquid level is qualified oil pipe, can continue to use, and needn't propose ground.For making the qualified sand clean out pipe of missing under sentencing not propose ground, in sand clean out pipe, drop into the bump head, the external diameter of bump head is greater than the internal diameter of sliding sleeve 5; On the bump head, connect a sucker rod, bump head and sucker rod are descending together, and bump headstock is on sliding sleeve 5; The weight of sucker rod is greater than the support force of support spring 7; The sliding sleeve 5 descending linked holes 4 that no longer cover, the inside and outside UNICOMs of cross over pipe 2,8 sand clean out pipe and the outlet UNICOMs of lower contact 10 that make on the utility model through the circular passage.Liquid level in the sand clean out pipe descends, and continues sand washing oil pipe down then.Raising and the ability voltage stabilizing like pressure test pressure, explain that sand clean out pipe does not leak, is qualified sand washing oil pipe, has got rid of the factor that sand clean out pipe leaks, and need find out the abnormal reason of sand washing from others.Therefore, use the utility model sand washing can conveniently analyze the abnormal reason of sand washing.
Claims (1)
1. compression oil sand washing pipe switch; Comprise top connection (1), cross over pipe (2), upper sealing ring (3), sliding sleeve (5), lower sealing ring (6), support spring (7), valve ball (9), lower contact (10), it is characterized in that: top connection (1) is threaded on screw thread and the cross over pipe (2) down, and linked hole (4) is arranged on the cross over pipe (2); Sliding sleeve (5), support spring (7) are installed in the cross over pipe (2); Sliding sleeve (5) covers linked hole (4), and sliding sleeve (5) is gone up suit upper sealing ring (3) and lower sealing ring (6), and upper sealing ring (3) is on the linked hole (4); Lower sealing ring (6) is under the linked hole (4); On the shoulder, sliding sleeve (5) is supported in support spring (7) upper surface to support spring (7) seat in cross over pipe (2) bottom, and sliding sleeve (5) is pushed down in top connection (1) lower surface; Valve ball (9) seat is on the valve port of cross over pipe (2) bottom; The external screw thread of cross over pipe (2) is connected with the internal thread of lower contact (10), forms circular passage (8) between cross over pipe (2) and the lower contact (10), and the oil pipe internal thread is arranged at top connection (1) top; Oil tube external thread is arranged at lower contact (10) bottom, and the diameter of valve ball (9) is less than the internal diameter of sliding sleeve (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120404091 CN202250051U (en) | 2011-10-21 | 2011-10-21 | Compression type oil pipe leakage checking switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120404091 CN202250051U (en) | 2011-10-21 | 2011-10-21 | Compression type oil pipe leakage checking switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202250051U true CN202250051U (en) | 2012-05-30 |
Family
ID=46111310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120404091 Expired - Fee Related CN202250051U (en) | 2011-10-21 | 2011-10-21 | Compression type oil pipe leakage checking switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202250051U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110671064A (en) * | 2019-10-30 | 2020-01-10 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Oil well sand washing liquid returning stop valve and using method thereof |
-
2011
- 2011-10-21 CN CN 201120404091 patent/CN202250051U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110671064A (en) * | 2019-10-30 | 2020-01-10 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Oil well sand washing liquid returning stop valve and using method thereof |
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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: 20120530 Termination date: 20121021 |