CN202031578U - Leakage-detecting device of sand flushing tubular column - Google Patents
Leakage-detecting device of sand flushing tubular column Download PDFInfo
- Publication number
- CN202031578U CN202031578U CN2011201371392U CN201120137139U CN202031578U CN 202031578 U CN202031578 U CN 202031578U CN 2011201371392 U CN2011201371392 U CN 2011201371392U CN 201120137139 U CN201120137139 U CN 201120137139U CN 202031578 U CN202031578 U CN 202031578U
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- seal ring
- valve seat
- sealing ring
- discharge orifice
- main body
- Prior art date
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- Expired - Fee Related
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- Sink And Installation For Waste Water (AREA)
Abstract
A leakage-detecting device of a sand flushing tubular column comprises a body, an upper seal ring, a sliding bush, a lower seal ring, a flow passage connector, a throwing-in plugging bar, a connecting seal ring, a valve seat and a shear pin . The body is in threaded connection with the flow passage connector, the body is provided with a discharge orifice, the sliding bush is fixed in the body by the shear pin, the sliding bush covers the discharge orifice, the upper seal ring and the lower seal ring are sleeved on the sliding bush, the upper seal ring is arranged above the discharge orifice, the lower seal ring is arranged under the discharge orifice, the valve seat is in threaded connection with the lower portion of the body, the connecting seal ring is arranged at the threaded joint of the valve seat and the body, the throwing-in plugging bar is located on the valve seat, an annular flow passage is arranged between the body and the flow passage connector, and the diameter of the upper portion of the throwing-in plugging bar is smaller than the inner diameter of the sliding bush. The sand flushing tubular column entering the well can be detected, the portion where leakage occurs can be found out easily and accurately, abnormality of sand flushing can be analyzed, normal sand flushing can be guaranteed, and the fact the leakage of the oil tube causes failure of sand flushing and blocking of the sand flushing column by sands is avoided.
Description
Technical field
The utility model belongs to the downhole tool that the oilfield oil well well workover is used, and is a kind of sand washing tubing string leak testing device.
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 tubing string more than the sand face of shaft bottom, to squeeze into sand cleaning fluid in the sand washing tubing string, sand cleaning fluid has dashed sand from oil casing annular space and has returned out.The on-the-spot sand washing tubing string 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 tubing string of commonsense method, causes sand cleaning fluid to return out from the oil pipe leakage, and sand cleaning fluid arrive Sha Mianchu, therefore dash do not shake out next.Sometimes also can appear in the sand washing way and raise because of pressure, the sand washing tubing string breaks from the weakness that damage is arranged, sand cleaning fluid returns out from rent, causes stuck sand washing tubing string when dashing the sand sinking of also not returning out ground in the following oil casing annular space of rent, causes increasing the unfreezing workload.
Summary of the invention
The purpose of this utility model is a kind of sand washing tubing string leak testing device of design, makes it can verify whether the sand washing tubing string misses.
The purpose of this utility model is achieved in that and comprises main body, upper sealing ring, sliding sleeve, lower sealing ring, the runner joint, drop into stemming rod, connect sealing ring, valve seat, cut off pin, main body is connected with the runner joint screw thread, discharge orifice is arranged on the main body, sliding sleeve is fixed in the main body by cutting off pin, sliding sleeve covers discharge orifice, suit upper sealing ring and lower sealing ring on the sliding sleeve, upper sealing ring is on the discharge orifice, lower sealing ring is under the discharge orifice, valve seat is threaded with lower body part, valve seat has the sealing ring of connection with the main body connection of thread, dropping into stemming rod is located on the valve seat, between main body and the runner joint annular channel is arranged, drop into the internal diameter of the upper diameter of stemming rod less than sliding sleeve.
The beneficial effects of the utility model are: can test to the sand washing tubing string of G.I.H, can simply check out accurately sand washing tubing string leakage position, the convenient abnormal reason of sand washing of analyzing guarantees normal sand washing, avoids the oil pipe leakage to cause the unsuccessful and sand card sand washing tubing string of sand washing.
Description of drawings
Fig. 1 is a general assembly drawing of the present utility model.
The specific embodiment
Below in conjunction with Fig. 1 embodiment of the present utility model is described.
As seen from the figure, embodiment of the present utility model comprises main body 1, upper sealing ring 2, sliding sleeve 4, lower sealing ring 5, runner joint 6, drop into stemming rod 8, connect sealing ring 9, valve seat 10, cut off pin 11, main body 1 is threaded with runner joint 6, discharge orifice 3 is arranged on the main body 1, sliding sleeve 4 is fixed in the main body 1 by cutting off pin 11, sliding sleeve 4 covers discharge orifice 3, suit upper sealing ring 2 and lower sealing ring 5 on the sliding sleeve 4, upper sealing ring 2 is on the discharge orifice 3, lower sealing ring 5 is under the discharge orifice 3, valve seat 10 is connected with main body 1 lower thread, valve seat 10 has the sealing ring of connection 9 with main body 1 connection of thread, drops into stemming rod 8 and is located on the valve seat 10, between main body 1 and the runner joint 6 annular channel 7 is arranged, drop into the internal diameter of the upper diameter of stemming rod 8, can pass through sliding sleeve 4 smoothly during input less than sliding sleeve 4.
During following sand washing tubing string, earlier the input stemming rod in the utility model 8 is taken out, connect in the bottom of sand washing tubing string post again, sand cleaning fluid can install downward sand washing by this smoothly.During sand washing, water is fast if oil casing annular space returns, sand dashes not go down, and just can suspect that the sand washing tubing string leaks.To drop into stemming rod 8 and drop in the sand washing tubing string, and drop into stemming rod 8 and pass through sliding sleeve 4 back seats on valve seat 10, blocking channel makes the tubing string on the utility model airtight then to the pressure testing of sand clean out pipe post.Do not rise as pressure test pressure, illustrate that the sand washing tubing string leaks, need to propose the sand washing tubing string.Near several sand washing tubing strings that the place that liquid level is arranged in mentioning the sand washing tubing string, scrutiny are herein just can be found out the leakage oil pipe, need not check all sand washing tubing strings that propose, and therefore can simply check out accurately sand washing tubing string leakage position.The following sand washing tubing string of liquid level is qualified oil pipe, can continue to use, and needn't propose ground.For the qualified oil pipe that leakage is sentenced does not down propose ground, in oil pipe, drop into the bump head, that cuts off fixing sliding sleeve 4 under impact force action cuts off pin 11, and the sliding sleeve 4 descending discharge orifices 3 that no longer cover will be opened by the passage of input stemming rod 8 obstructions.After passage was opened, liquid level descended, and continued sand washing tubing string down then.Raising and the energy voltage stabilizing as pressure test pressure, illustrate that the sand washing tubing string does not leak, is qualified sand washing tubing string, has got rid of the factor that the sand washing tubing string leaks, and need find out the abnormal reason of sand washing from others.
Claims (1)
1. sand washing tubing string leak testing device, comprise main body (1), upper sealing ring (2), sliding sleeve (4), lower sealing ring (5), runner joint (6), drop into stemming rod (8), connect sealing ring (9), valve seat (10), cut off pin (11), it is characterized in that: main body (1) is threaded with runner joint (6), discharge orifice (3) is arranged on the main body (1), sliding sleeve (4) is fixed in the main body (1) by cutting off pin (11), sliding sleeve (4) covers discharge orifice (3), sliding sleeve (4) is gone up suit upper sealing ring (2) and lower sealing ring (5), upper sealing ring (2) is on the discharge orifice (3), lower sealing ring (5) is under the discharge orifice (3), valve seat (10) is connected with main body (1) lower thread, valve seat (10) has the sealing ring of connection (9) with main body (1) connection of thread, dropping into stemming rod (8) is located on the valve seat (10), between main body (1) and the runner joint (6) annular channel (7) is arranged, drop into the internal diameter of the upper diameter of stemming rod (8) less than sliding sleeve (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201371392U CN202031578U (en) | 2011-04-20 | 2011-04-20 | Leakage-detecting device of sand flushing tubular column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201371392U CN202031578U (en) | 2011-04-20 | 2011-04-20 | Leakage-detecting device of sand flushing tubular column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202031578U true CN202031578U (en) | 2011-11-09 |
Family
ID=44893880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201371392U Expired - Fee Related CN202031578U (en) | 2011-04-20 | 2011-04-20 | Leakage-detecting device of sand flushing tubular column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202031578U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107587861A (en) * | 2016-07-06 | 2018-01-16 | 中国石油化工股份有限公司 | One kind is with brill sand washing pressure testing aerial drainage integrated apparatus |
-
2011
- 2011-04-20 CN CN2011201371392U patent/CN202031578U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107587861A (en) * | 2016-07-06 | 2018-01-16 | 中国石油化工股份有限公司 | One kind is with brill sand washing pressure testing aerial drainage integrated apparatus |
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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: 20111109 Termination date: 20120420 |