CN202348226U - Two-directional stabilizer - Google Patents
Two-directional stabilizer Download PDFInfo
- Publication number
- CN202348226U CN202348226U CN2011204140563U CN201120414056U CN202348226U CN 202348226 U CN202348226 U CN 202348226U CN 2011204140563 U CN2011204140563 U CN 2011204140563U CN 201120414056 U CN201120414056 U CN 201120414056U CN 202348226 U CN202348226 U CN 202348226U
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- Prior art keywords
- valve
- spring
- way valve
- way
- ball
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model relates to a downhole tool, in particular to a tool used as a pipe string. According to a two-directional stabilizer provided by the utility model, a lower joint is connected with a valve cylinder, a spring base is arranged inside the valve cylinder, a valve spring is arranged below the spring base, the lower side of a valve spring is connected with a non-return valve cap, the non-return valve cap is connected and fixed with a non-return valve base, a non-return valve spool is arranged in a space formed of the non-return valve cap and the non-return valve base, a small valve spring is arranged below a ball, and the small valve spring is arranged inside the non-return valve spool and upwardly press on the wall. The two-directional stabilizer provided by the utility model overcomes the shortcomings of a retaining valve, and a well cleanout channel allowing flowing in the forward and backward directions is formed in a bushing space between a sleeve and an oil pipe inside the oil pipe, and the flowing of oil in the forward and backward directions is realized according to the construction requirements.
Description
Technical field
The utility model relates to a kind of downhole tool, relates in particular to a kind of lift pipe string and uses instrument.
Background technology
When on lift pipe string, carrying oil pipe, produce pressure differential between the fluid in oil jacket annular space and the oil pipe, fluid can be along with oil pipe rise to ground, contaminated environment.Owing to only be provided with ball-and-seat in the oil well lower end now, fluid can only get in the oil pipe from the oil jacket annular space, on when carrying oil pipe, fluid can not be emitted in oil pipe.Fluid can not refill in the oil well along with oil pipe rises to ground, all is to become an enclosure wall with fortifield village, fluid is collected through guiding gutter introduced the hollow place that digs at a distance, easy like this ground environment is polluted.
Summary of the invention
The utility model is exactly to the problems referred to above a kind of new device to be provided, and can satisfy normal oil pumping function, again can be when lift pipe string, and the fluid in the oil pipe can flow in the oil well downwards.
The technical scheme that the utility model provides is:
Two-way level pressure device, lower contact is connected with valve cylinder, is provided with spring base in the valve cylinder; The spring base below is provided with valve spring; The valve spring below is connected with the one way valve valve gap, and the one way valve valve gap is connected fixing with one-way valve seat, is provided with the one way valve spool in the space that one way valve valve gap and one-way valve seat form; The ball below is provided with little valve spring, and little valve spring is arranged on the one-way valve in-core and upwards compresses ball.
Preferably, form the ring set space between one-way valve seat and the valve cylinder, and the one-way valve seat circumference is provided with boss, boss is provided with the hole.
Preferably, the spring base center is a through hole.
Preferably, the internal diameter on one way valve spool top is greater than the diameter of ball, and the internal diameter of one way valve bottom is less than the diameter of ball.
The utility model has overcome the deficiency of ball-and-seat, but can make in the oil pipe and the mobile well-flushing passage of the foundation of the ring set space between sleeve pipe and oil pipe both forward and reverse directions, realizes that according to the construction needs the positive and negative direction of fluid flows.
The utility model can realize that the fluid both forward and reverse directions flows; Rely on fluid self pressure to press down little valve spring and fall to oil well, but balance oil well inner ring sleeve space pressure, and suppression fluid overflows in oil pipe; Play to reduce and pollute; Improve working conditions, raise the efficiency, reduce the effect that down-hole accident and operation are done over again.
Description of drawings
Fig. 1 is the structural representation of the utility model.
1 lower contact, 2 valve cylinders, 3 one-way valve seats, 4 little valve spring 5 one way valve spools
6 balls, 7 one way valve valve gaps, 8 valve springs, 9 spring bases.
The specific embodiment
As shown in the figure, two-way level pressure device, lower contact is connected with valve cylinder.Be provided with spring base in the valve cylinder, the spring base center is a through hole.The spring base below is provided with valve spring, and the valve spring below is connected with the one way valve valve gap.The one way valve valve gap is connected fixing with one-way valve seat.Be provided with the one way valve spool in the space that one way valve valve gap and one-way valve seat form.Form the ring set space between one-way valve seat and the valve cylinder, and the one-way valve seat circumference is provided with boss, boss is provided with the hole.The ball below is provided with little valve spring, and little valve spring is arranged on the one-way valve in-core and upwards compresses ball.The internal diameter on one way valve spool top is greater than the diameter of ball, and the internal diameter of one way valve bottom is less than the diameter of ball.
In the overflow well going down process, head a ball on the fluid of ball below, one way valve valve gap in top on the ball, one-way valve covers the overhead-valve spring, forms the slit between one-way valve seat and the lower contact, and fluid is up through the ring set space between one-way valve seat and the valve cylinder.Liquid level is lower than in the oil pipe and the ring set space liquid level certain altitude between sleeve pipe and the oil pipe all the time in the oil pipe, and fluid can not overflow in oil pipe, can only flow out from sleeve pipe.
During trip-out, the fluid in the oil pipe flows in the oil pipe and the ring set space between sleeve pipe and the oil pipe.Ball valve spring and above the effect of fluid under press down little valve spring.Form the slit between ball and the one way valve spool, fluid falls from the slit.Suppress fluid and in oil pipe, overflow, liquid level is lower than liquid level certain altitude in the ring set space between sleeve pipe and the oil pipe all the time in the oil pipe, has avoided pollution.
Claims (4)
1. two-way level pressure device is characterized in that lower contact is connected with valve cylinder; Be provided with spring base in the valve cylinder, the spring base below is provided with valve spring, and the valve spring below is connected with the one way valve valve gap; The one way valve valve gap is connected fixing with one-way valve seat; Be provided with the one way valve spool in the space that one way valve valve gap and one-way valve seat form, the ball below is provided with little valve spring, and little valve spring is arranged on the one-way valve in-core and upwards compresses ball.
2. according to the said two-way level pressure device of claim 1, it is characterized in that, form the ring set space between one-way valve seat and the valve cylinder, and the one-way valve seat circumference is provided with boss, boss is provided with the hole.
3. according to the said two-way level pressure device of claim 1, it is characterized in that the spring base center is a through hole.
4. according to the said two-way level pressure device of claim 1, it is characterized in that the internal diameter on one way valve spool top is greater than the diameter of ball, the internal diameter of one way valve bottom is less than the diameter of ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204140563U CN202348226U (en) | 2011-10-27 | 2011-10-27 | Two-directional stabilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204140563U CN202348226U (en) | 2011-10-27 | 2011-10-27 | Two-directional stabilizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202348226U true CN202348226U (en) | 2012-07-25 |
Family
ID=46537235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204140563U Expired - Fee Related CN202348226U (en) | 2011-10-27 | 2011-10-27 | Two-directional stabilizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202348226U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109184634A (en) * | 2018-09-04 | 2019-01-11 | 王凯 | A kind of oil production by layer signaling switch |
| CN110566153A (en) * | 2019-09-26 | 2019-12-13 | 中海油能源发展股份有限公司工程技术分公司 | reservoir protection device capable of being opened in two directions |
| CN112112606A (en) * | 2020-09-30 | 2020-12-22 | 中国石油天然气集团有限公司 | Constant-pressure constant-quantity swab and constant-pressure constant-quantity swabbing method thereof |
-
2011
- 2011-10-27 CN CN2011204140563U patent/CN202348226U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109184634A (en) * | 2018-09-04 | 2019-01-11 | 王凯 | A kind of oil production by layer signaling switch |
| CN110566153A (en) * | 2019-09-26 | 2019-12-13 | 中海油能源发展股份有限公司工程技术分公司 | reservoir protection device capable of being opened in two directions |
| CN112112606A (en) * | 2020-09-30 | 2020-12-22 | 中国石油天然气集团有限公司 | Constant-pressure constant-quantity swab and constant-pressure constant-quantity swabbing method thereof |
| CN112112606B (en) * | 2020-09-30 | 2024-03-01 | 中国石油天然气集团有限公司 | Constant-pressure constant-quantity type swab and constant-pressure constant-quantity swabbing 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: 20120725 Termination date: 20121027 |