CN101382056A - Shovel special for bailing in horizontal well - Google Patents
Shovel special for bailing in horizontal well Download PDFInfo
- Publication number
- CN101382056A CN101382056A CNA2008102233994A CN200810223399A CN101382056A CN 101382056 A CN101382056 A CN 101382056A CN A2008102233994 A CNA2008102233994 A CN A2008102233994A CN 200810223399 A CN200810223399 A CN 200810223399A CN 101382056 A CN101382056 A CN 101382056A
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- bailing
- sand
- horizontal well
- shovel
- variable
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Abstract
The invention relates to the technical field of petroleum machinery, in particular to a sand shovel specially for bailing in a horizontal well. The invention provides the sand shovel specially for bailing in the horizontal well in order to solve the problem of ineffectively realizing single flow during the bailing in the horizontal well section. The sand shovel comprises a shovel tip and a variable-diameter short connector, wherein the shovel tip is connected with the variable-diameter short connector, a universal single flow device is arranged inside the variable-diameter short connector, and the variable-diameter short connector and the universal single flow device form a universal check valve. The sand shovel can be used for working with a sand pump or a horizontal sand pump to complete the bailing in the horizontal well in the bailing operation in the horizontal well or a high angle well, thereby enabling the mechanical bailing process to be applied to the settled sand treatment in the horizontal well, and breaking the limitation that the sand pump can only be used for a vertical well in the prior art. In addition, the sand shovel does not pollute an oil reservoir, saves cost, and has thorough desanding and high working efficiency.
Description
Technical field
The present invention relates to the petroleum machinery technical field, be specifically related to a kind of shovel special for bailing in horizontal well.
Background technology
At present, mechanical sand bucket only is applicable to that straight well drags for sand because its cost is low, and limitation is big; And in the horizontal well if adopt and to drag for sand technology and must develop corresponding sand shovel and could satisfy and drag for the sand requirement, what emphasis need solve is the sealing problem of ball-and-seat during sand shovels.Ball-and-seat level or when tilt placing because the gravity of valve endosphere no longer can make it reset accurately, needs the sensitive opening and closing in the reciprocating motion of sand bucket piston that concede points of a kind of new structure of design, plays good sealing function.
Summary of the invention
In order to solve the sealing problem of ball-and-seat in the sand shovel, the invention provides a kind of shovel special for bailing in horizontal well, what it can be used for horizontal well or high angle hole drags for the sand operation, has improved and has dragged for the sand technological level, has expanded range of application.
The technical solution used in the present invention is: a kind of shovel special for bailing in horizontal well, comprise spear, reducing short circuit, and its special character is: described spear is connected with the reducing short circuit; Be provided with universal single current device in the described reducing short circuit, reducing short circuit and universal single current device are formed universal ball-and-seat.
Above-mentioned universal single current device is made up of valve ball, ball seat, spring, the guiding frame that resets, and described valve ball is connected with spring, being arranged on guiding and resetting in the frame.
Spring in the above-mentioned universal single current device is the adjustable in pressure spring.
Above-mentioned spear and reducing short circuit all adopt API standard button-type.
Compared with prior art, advantage of the present invention is as follows:
The present invention can be used for the sand bucket of horizontal well or high angle hole operation, make machinery drag for sand technology and drag in the sand at horizontal well and be applied, and has broken through the limitation that sand bucket in the past can only be used for straight well, and polluted reservoir not, saves cost, and desanding thoroughly and high efficiency.
Description of drawings
Fig. 1 is an overall structure schematic diagram of the present invention.
1-spear, 2-universal single current device, 3-reducing short circuit, 4-valve ball, 5-ball seat,
6-spring, 7-frame that resets leads.
The specific embodiment
Below in conjunction with accompanying drawing technical scheme of the present invention is done and to be described in further detail.
Referring to Fig. 1, the invention provides a kind of shovel special for bailing in horizontal well, comprise spear 1, reducing short circuit 3, described spear 1 is connected with reducing short circuit 3, be provided with universal single current device 2 in the described reducing short circuit 3, reducing short circuit 3 is formed universal ball-and-seat with universal single current device 2; Described universal single current device 2 is made up of valve ball 4, ball seat 5, spring 6, the guiding frame 7 that resets, and described valve ball 4 is connected with spring 6, and being arranged on leads resets in the frame 7; Described spring 6 is the adjustable in pressure spring.The characteristics of this ball-and-seat are that the valve ball of ball-and-seat is connected with the spring of adjustable in pressure, can keep and the intact sealing of ball seat at horizontal segment, can easily open, reset when the sand bucket pumping, finish and once drag for the sand operation.
Above-mentioned spear and reducing short circuit all adopt API standard button-type.
The sand shovel is lowered to horizontal segment with dragging for the sandpipe post, and valve ball seals with ball seat all the time by the strength of spring, guarantees the excellent sealing of universal single current device.When the sand bucket pumping, because the differential pressure action of liquid, valve ball overcomes the pressure of spring, breaks away from ball seat on guiding resets frame, opens ball-and-seat, and reservoir sand enters the sand shovel.When sand bucket is transferred, spring reset, valve ball is sitting on the ball seat again.That and so forth, finishes horizontal well drags for the sand operation.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1, a kind of shovel special for bailing in horizontal well comprises spear, reducing short circuit, it is characterized in that: described spear is connected with the reducing short circuit; Be provided with universal single current device in the described reducing short circuit, reducing short circuit and universal single current device are formed universal ball-and-seat.
2, a kind of shovel special for bailing in horizontal well according to claim 1 is characterized in that: described universal single current device is made up of valve ball, ball seat, spring, the guiding frame that resets, and described valve ball is connected with spring, being arranged on guiding and resetting in the frame.
3, a kind of shovel special for bailing in horizontal well according to claim 2 is characterized in that: the spring in the described universal single current device is the adjustable in pressure spring.
4, a kind of shovel special for bailing in horizontal well according to claim 1 is characterized in that: described spear and reducing short circuit all adopt API standard button-type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102233994A CN101382056A (en) | 2008-09-27 | 2008-09-27 | Shovel special for bailing in horizontal well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102233994A CN101382056A (en) | 2008-09-27 | 2008-09-27 | Shovel special for bailing in horizontal well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101382056A true CN101382056A (en) | 2009-03-11 |
Family
ID=40462082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008102233994A Pending CN101382056A (en) | 2008-09-27 | 2008-09-27 | Shovel special for bailing in horizontal well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101382056A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103498641A (en) * | 2013-09-24 | 2014-01-08 | 北京恩瑞达科技有限公司 | Sand removing device and method of oil well negative-pressure machine |
| CN109681178A (en) * | 2018-11-16 | 2019-04-26 | 中国海洋石油集团有限公司 | A kind of Y tubing string having water attack volume increase function and implementation method |
-
2008
- 2008-09-27 CN CNA2008102233994A patent/CN101382056A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103498641A (en) * | 2013-09-24 | 2014-01-08 | 北京恩瑞达科技有限公司 | Sand removing device and method of oil well negative-pressure machine |
| CN109681178A (en) * | 2018-11-16 | 2019-04-26 | 中国海洋石油集团有限公司 | A kind of Y tubing string having water attack volume increase function and implementation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090311 |