CN107829708A - Multipurpose ball-and-seat - Google Patents
Multipurpose ball-and-seat Download PDFInfo
- Publication number
- CN107829708A CN107829708A CN201711040499.9A CN201711040499A CN107829708A CN 107829708 A CN107829708 A CN 107829708A CN 201711040499 A CN201711040499 A CN 201711040499A CN 107829708 A CN107829708 A CN 107829708A
- Authority
- CN
- China
- Prior art keywords
- main body
- seat
- ball
- annular piston
- spring
- 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.)
- Pending
Links
- 238000007789 sealing Methods 0.000 claims abstract description 11
- 238000005086 pumping Methods 0.000 abstract description 8
- 239000012530 fluid Substances 0.000 abstract description 6
- 238000011010 flushing procedure Methods 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000000203 mixture Substances 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/08—Valve arrangements for boreholes or wells in wells responsive to flow or pressure of the fluid obtained
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Check Valves (AREA)
Abstract
The present invention relates to a kind of multipurpose ball-and-seat, including upper main body, lower main body, central tube, annular piston, spring, sealing ring composition, the side wall of described upper main body is circumferentially with some liquid-through holes, upper main body, to be threadedly coupled, is threaded in the inner side of main body, annular piston and spring are placed in the cavity between main body and central tube with lower main body beyond central tube, it is spring on annular piston, the periphery of annular piston is provided with sealing ring.Beneficial effect：A kind of multipurpose ball-and-seat proposed by the present invention is connected to the flushing fluid that can be injected on screw pump pumping pipe string in well-flushing season well head and enters pumping pipe string on pump；Ball-and-seat remains central longitudinal channel, in order to which pumping pipe string and screw pump rotor pass through from central longitudinal channel；Ball-and-seat is used in separate-zone producer, multistage can be used, and it is adjustable as needed to start pressure, and the hole of ball-and-seat is hard sealing, impact resistance, long lifespan.
Description
Technical field
The present invention relates to the downhole tool used in field of oil field oil extraction, more particularly to a kind of multipurpose ball-and-seat.
Background technology
In oil well production process, to realize the one-way flow of fluid, it need to be used under many circumstances on down-hole string
Ball-and-seat；Such as hot water well-washing wax-cleaning is periodically injected into well, not make hot wash water pour into oil reservoir, palpus packer oil reservoir every
Open, and correspond to oil reservoir position on tubing string and use ball-and-seat, oil reservoir production fluid when preventing the water of injection from entering oil reservoir, but producing
It can be flowed out through ball-and-seat；Some tubing strings need to suppress releasing packer in job execution, just need to use in tubing string feed pathway
Ball-and-seat, tubing string is set to form a closed system during pressurization releasing packer in tubing string；And it is also required to during screw bolt well hot wash
The feed liquor on pump, it is also desirable to have ball-and-seat.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of multipurpose ball-and-seat, and the valve is closed in its natural state,
And then opened when pipe external pressure is higher than overpressure, thus well liquid can be made to realize one-way flow.
The present invention is achieved through the following technical solutions：A kind of multipurpose ball-and-seat, including upper main body, lower main body, center
Pipe, annular piston, spring, sealing ring composition, the side wall of described upper main body are circumferentially with some liquid-through holes, upper main body and lower master
Body is threaded in the inner side of main body, annular piston and spring are placed in main body and center to be threadedly coupled beyond central tube
It is spring in cavity between pipe, on annular piston, the periphery of annular piston is provided with sealing ring.
Further, described upper main body upper end and the lower end of lower main body are equipped with tubing thread.
Beneficial effects of the present invention：A kind of multipurpose ball-and-seat proposed by the present invention is connected to energy on screw pump pumping pipe string
Entering pumping pipe string on pump in the flushing fluid of well-flushing season well head injection, ball-and-seat remains central longitudinal channel, in order to
Pumping pipe string and screw pump rotor pass through from central longitudinal channel；Ball-and-seat is used in separate-zone producer, multistage can be used, is started
Pressure is adjustable as needed, and the hole of ball-and-seat seals to be hard, impact resistance, long lifespan.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Main body on 1- in figure, main body under 2-, 3- central tubes, 4- annular pistons, 5- springs, 6- sealing rings.
Embodiment
As shown in figure 1, a kind of multipurpose ball-and-seat proposed by the present invention, including upper main body 1, lower main body 2, central tube 3, ring
Shape piston 4, spring 5, sealing ring 6 form, and described upper main body 1 is the upper end of ball-and-seat, and lower main body 2 is the lower end of ball-and-seat,
The upper upper end of main body 1 and the lower end of lower main body 2 are equipped with tubing thread, and to be connected with tubing string, the side wall of upper main body 1 is circumferentially with some
Liquid-through hole, realizes lateral feed liquor, and upper main body 1, to be threadedly coupled, main body 1 is threaded in beyond central tube 3 with lower main body 2
Inner side, annular piston 4 and spring 5 are placed in the cavity between main body 1 and central tube 3, are spring 5 on annular piston 4, annular
The periphery of piston 4 is provided with sealing ring 6, and sealing ring 6 is used for the gap between closed ring piston 4 and upper main body 1；In free state
Under, annular piston 4 is pressed in the upper end of lower main body 2 in the presence of spring 5, ball-and-seat is in closed state, works as external pressure
During more than internal pressure certain value, annular piston 4 is up, connects main body 1 and the liquid-through hole of central tube 3, realizes flushing fluid
Enter tubing string, or oil reservoir production fluid enters well.
In actual use, if being used for screw bolt well pumping and washing, then ball-and-seat is connected on the tubing string on pump and gone into the well；If
It is to be used for separate-zone producer, then is connected on the position for corresponding to pay interval on Back-off Pipe String or overall tubing string and goes into the well；When in pipe
When releasing packer is suppressed in post, annular piston 4 falls in lower main body 2, seals liquid-through hole, tubing string is turned into a closing and is
System.When oil well, which is put into, recovers the oil production, because pipe external pressure is higher than overpressure at that time, annular piston 4 is up under the pressure difference, well
Liquid just enters from the circumferential inlet opening of upper main body, and the liquid-through hole through central tube 3 is entered in tubing string, by oil pumping pumped.
Claims (2)
1. a kind of multipurpose ball-and-seat, including upper main body (1), lower main body (2), central tube (3), annular piston (4), spring (5),
Sealing ring (6) forms, it is characterised in that：The side wall of described upper main body (1) is circumferentially with some liquid-through holes, upper main body (1) with
Lower main body (2) is threaded in the inner side of main body (1), annular piston (4) and spring to be threadedly coupled beyond central tube (3)
(5) it is placed in the cavity between main body (1) and central tube (3), is spring (5) on annular piston (4), annular piston (4)
Periphery is provided with sealing ring (6).
2. multipurpose ball-and-seat according to claim 1, it is characterised in that：Described upper main body (1) upper end and lower main body
(2) lower end is equipped with tubing thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711040499.9A CN107829708A (en) | 2017-10-31 | 2017-10-31 | Multipurpose ball-and-seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711040499.9A CN107829708A (en) | 2017-10-31 | 2017-10-31 | Multipurpose ball-and-seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107829708A true CN107829708A (en) | 2018-03-23 |
Family
ID=61651075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711040499.9A Pending CN107829708A (en) | 2017-10-31 | 2017-10-31 | Multipurpose ball-and-seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107829708A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109209364A (en) * | 2018-08-16 | 2019-01-15 | 宋协翠 | Separate-layer production string underground oil sampling device |
| CN109209365A (en) * | 2018-08-16 | 2019-01-15 | 宋协翠 | A kind of separate-layer production string underground oil sampling device and application method |
| CN114427382A (en) * | 2020-10-12 | 2022-05-03 | 中国石油化工股份有限公司 | Downhole tubular oil production pump lower tubular column seating device and method |
-
2017
- 2017-10-31 CN CN201711040499.9A patent/CN107829708A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109209364A (en) * | 2018-08-16 | 2019-01-15 | 宋协翠 | Separate-layer production string underground oil sampling device |
| CN109209365A (en) * | 2018-08-16 | 2019-01-15 | 宋协翠 | A kind of separate-layer production string underground oil sampling device and application method |
| CN109209364B (en) * | 2018-08-16 | 2022-10-28 | 宋协翠 | Underground oil sampling device for layered oil production pipe column |
| CN114427382A (en) * | 2020-10-12 | 2022-05-03 | 中国石油化工股份有限公司 | Downhole tubular oil production pump lower tubular column seating device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180323 |