CN204646186U - One can setting type underground check valve - Google Patents
One can setting type underground check valve Download PDFInfo
- Publication number
- CN204646186U CN204646186U CN201520328045.1U CN201520328045U CN204646186U CN 204646186 U CN204646186 U CN 204646186U CN 201520328045 U CN201520328045 U CN 201520328045U CN 204646186 U CN204646186 U CN 204646186U
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- tube
- tube connector
- connecting cylinder
- ball
- seat
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- Expired - Fee Related
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Abstract
The utility model relates to one can setting type underground check valve, comprise sand filter, ball-and-seat, snap ring, tube connector, outer tube, spring base, set spring, back-moving spring jump ring, connecting cylinder, sealing ring, cutting ferrule, sealing cup, slips, central tube, outer sleeve, shear pin, deliver joint, deliver joint to be connected with outer sleeve by shear pin, central tube is connected with tube connector, sealing cup is connected with outer sleeve and cutting ferrule, cutting ferrule and outer sleeve, connecting cylinder is connected with outer tube, sealing ring hermetically sealed case cylinder and tube connector, connecting cylinder and tube connector, outer tube, spring base, cutting ferrule is connected with outer sleeve, back-moving spring jump ring is connected with connecting cylinder and tube connector, set spring in spring base, ball-and-seat is connected with sand filter, sand filter and ball-and-seat, snap ring is connected with tube connector, beneficial effect: structure is simple, be convenient to install, good seal, resistance to pressure reduction is high, can realize installing and deblocking in optional position, down-hole.
Description
Technical field
The utility model relates to one can setting type underground check valve, particularly a kind ofly can play one-way flow control action and in tubing string, can set the ball-and-seat with deblocking in optional position in random position in down-hole.
Background technology
In oil-gas field development, in flowing well or gas well liquid loading well, downhole crude is rushed to ground continuously, crude oil (natural gas) needs by oil pipe or sleeve pipe, flow backwards to prevent fluid (natural gas), ball-and-seat has all been installed on single well pipeline by six Chang Ge oil deposit management districts of recovering the oil, Zhongyuan Oil Field, prevent oil gas from flowing backwards, to such an extent as to cause serious accident, ball-and-seat mounting method and position are essentially, clamping hoop type connects, flange form connects, welded type is welded in individual well flow process, to such an extent as to the position of ball-and-seat immobilizes, arbitrarily can not change position, due to ball-and-seat easy blockage phenomenon when hole deviation causes the centralizer on sucker rod and oil pipe to rub to produce rubber and wax stone to flow through ball-and-seat with downhole fluid, we must use electrogas welding, fire fighting truck, recover the oil and keep in repair the top class in a kindergarten and associated safety personnel cooperation, ball-and-seat is disassembled, due to junction seriously corroded in ball-and-seat use procedure, screw thread adhesion cannot be dismantled to extend and stop the well time, dropped into a lot of manpower simultaneously, the expenditure of material resources and cost, rate when reducing the driving a well of oil well that maintenance time is long, the serious normal production having influence on oil well.We have redesigned one through careful research and exploitation and can set in optional position, down-hole for this reason, and can deblocking at any time, are convenient to install, easy to operate ball-and-seat, this ball-and-seat is disposable solves this difficult problem, and this ball-and-seat can be arranged on arbitrarily the optional position of oil pipe or sleeve pipe, and can deblocking easily, trip out ball-and-seat, be convenient to reduce maintenance cost, ensure that oil gas in-line is unimpeded, can better and safer produce, reduce risk, reach safety requirements.
Summary of the invention
The utility model, mainly for above problem, provides one can arbitrarily be arranged on optional position in oil pipe or sleeve pipe, and can the ball-and-seat that trips out of deblocking at any time, and ball-and-seat structure is simple, reliable operation, effectively prevents from flowing backwards.
In order to achieve the above object, the technical solution adopted in the present invention is: comprise sand filter, ball-and-seat, snap ring, tube connector, outer tube, spring base, set spring, back-moving spring jump ring, connecting cylinder, sealing ring, cutting ferrule, sealing cup, slips, central tube, outer sleeve, shear pin, deliver joint, described delivery joint is connected with outer sleeve by shear pin, described central tube is connected with tube connector, described sealing cup is connected with outer sleeve and cutting ferrule, cutting ferrule and outer sleeve, connecting cylinder is connected with outer tube, described sealing ring hermetically sealed case cylinder and tube connector, described connecting cylinder and tube connector, outer tube, spring base, cutting ferrule is connected with outer sleeve, described back-moving spring jump ring is connected with connecting cylinder and tube connector, set spring in spring base, described spring base is connected with tube connector and connecting cylinder, described outer tube and snap ring, connecting cylinder is connected with cutting ferrule, described tube connector and snap ring, spring base, connecting cylinder, outer sleeve is connected with central tube, described snap ring is connected with sand filter and tube connector, described ball-and-seat is connected with sand filter, described sand filter and ball-and-seat, snap ring is connected with tube connector.
On technique scheme basis, one can setting type underground check valve, and described ball-and-seat is connected with sand filter.
On technique scheme basis, one can setting type underground check valve, and described sealing cup is made up of upper leather cup and down cup, devises Spring Card pilot trench at the position of upper leather cup.
This ball-and-seat structure is simple, is convenient to install, good seal, and resistance to pressure reduction is high, can realize installing and deblocking in optional position, down-hole, plays the effect of one-way flow.
Accompanying drawing explanation
Fig. 1: structural representation of the present utility model;
Fig. 2: partial schematic diagram of the present utility model;
Fig. 3: partial schematic diagram of the present utility model;
Fig. 4: partial schematic diagram of the present utility model;
Symbol description:
1. sand filter, 2. ball-and-seat, 3. snap ring, 4. tube connector, 5. outer tube, 6. spring base, 7. set spring, 8. back-moving spring jump ring, 9. connecting cylinder, 10. sealing ring, 11. cutting ferrules, 12. sealing cups, 13. slips, 14. central tubes, 15. outer sleeves, 16. shear pins, 17. deliver joints.
A upper leather cup b down cup c Spring Card pilot trench.
Detailed description of the invention
Below in conjunction with accompanying drawing and example, the utility model is described in further detail:
As Figure 1-4, one can comprise by setting type underground check valve: sand filter (1), ball-and-seat (2), snap ring (3), tube connector (4), outer tube (5), spring base (6), set spring (7), back-moving spring jump ring (8), connecting cylinder (9), sealing ring (10), cutting ferrule (11), sealing cup (12), slips (13), central tube (14), outer sleeve (15), shear pin (16), deliver joint (17), deliver joint (17) to be connected with outer sleeve (15) by shear pin (16), connect to deliver under joint (17) can set ball-and-seat with piano wire and arrive projected depth, then carry on, slips (13) opens under the effect of deadweight, slips (13) and tube inner wall are clamped, now outer sleeve (15) is stuck simultaneously.Steel wire is carried in continuation, shear pin (16) is cut off under the effect of upper lifting force, now central tube (14), tube connector (4) do not have on top to move upward under the effect of power, set spring (7) release, outer tube (5) is promoted up through snap ring (3), sealing cup (12) is opened, after being tripped out by steel wire, gets final product opening well and making production.Gases at high pressure (liquid) in well filter out sand by sand filter in restriction choke (1), then through ball-and-seat (2), simultaneously in well gas differential pressure effect under that restriction choke is set is more firm.During salvaging, first Special fishing tool is connected on the tool string be made up of bumper jar, weighted lever, then by tool string lower going-into-well, behind in-position, fishing tool docks with the fishing head on outer sleeve (15), presses down the central tube (14) on restriction choke while fisher docks with restriction choke, makes to set spring (7) and resets, then rapidly on carry, make slips (13) unfreezing under the vibration effect of bumper jar of restriction choke.After slips unfreezing, on carry steel wire restriction choke salvaged well head, complete the salvage of restriction choke.
Preferably, described one can setting type underground check valve, it is characterized in that: ball-and-seat (2) is connected with sand filter (1).
Preferably, described one can setting type underground check valve, it is characterized in that: sealing cup (12) is made up of upper leather cup (a) and down cup (b), devises Spring Card pilot trench (c) at the position of upper leather cup (a).
The utility model has redesigned one through careful research and exploitation and can set in optional position, down-hole, and can deblocking at any time, is convenient to install, easy to operate ball-and-seat, this ball-and-seat is disposable solves this difficult problem, and this ball-and-seat can be arranged on arbitrarily the optional position of oil pipe or sleeve pipe, and can deblocking easily, trip out ball-and-seat, be convenient to reduce maintenance cost, ensure that oil gas in-line is unimpeded, can better and safer produce, reduce risk, reach safety requirements.
Be illustrated the utility model by way of example above, but the utility model is not limited to above-mentioned specific embodiment, all any changes of doing based on the utility model or modification all belong to the claimed scope of the utility model.
Claims (3)
1. one kind can setting type underground check valve, it is characterized in that: comprise sand filter (1), ball-and-seat (2), snap ring (3), tube connector (4), outer tube (5), spring base (6), set spring (7), back-moving spring jump ring (8), connecting cylinder (9), sealing ring (10), cutting ferrule (11), sealing cup (12), slips (13), central tube (14), outer sleeve (15), shear pin (16), deliver joint (17), described delivery joint (17) is connected with outer sleeve (15) by shear pin (16), described central tube (14) is connected with tube connector (4), described sealing cup (12) is connected with outer sleeve (15) and cutting ferrule (11), cutting ferrule (11) and outer sleeve (15), connecting cylinder (9) is connected with outer tube (5), described sealing ring (10) hermetically sealed case cylinder (15) and tube connector (4), described connecting cylinder (9) and tube connector (4), outer tube (5), spring base (6), cutting ferrule (11) is connected with outer sleeve (15), described back-moving spring jump ring (8) is connected with connecting cylinder (9) and tube connector (4), set spring (7) in spring base (6), described spring base (6) is connected with tube connector (4) and connecting cylinder (9), described outer tube (5) and snap ring (3), connecting cylinder (9) is connected with cutting ferrule (11), described tube connector (4) and snap ring (3), spring base (6), connecting cylinder (9), outer sleeve (15) is connected with central tube (14), described snap ring (3) is connected with sand filter (1) and tube connector (4), described ball-and-seat (2) is connected with sand filter (1), described sand filter (1) and ball-and-seat (2), snap ring (3) is connected with tube connector (4).
2. one according to claim 1 can setting type underground check valve, it is characterized in that: ball-and-seat (2) is connected with sand filter (1).
3. one according to claim 1 can setting type underground check valve, it is characterized in that: sealing cup (12) is made up of upper leather cup (a) and down cup (b), devises Spring Card pilot trench (c) at the position of upper leather cup (a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520328045.1U CN204646186U (en) | 2015-05-20 | 2015-05-20 | One can setting type underground check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520328045.1U CN204646186U (en) | 2015-05-20 | 2015-05-20 | One can setting type underground check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204646186U true CN204646186U (en) | 2015-09-16 |
Family
ID=54098950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520328045.1U Expired - Fee Related CN204646186U (en) | 2015-05-20 | 2015-05-20 | One can setting type underground check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204646186U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112302603A (en) * | 2019-07-29 | 2021-02-02 | 中国石油化工股份有限公司 | Natural gas recovery method |
| CN112302577A (en) * | 2019-07-29 | 2021-02-02 | 中国石油化工股份有限公司 | Jet pump drainage device and tubular column |
| CN112302555A (en) * | 2019-07-29 | 2021-02-02 | 中国石油化工股份有限公司 | Downhole locking device and tubular column |
| CN112302589A (en) * | 2019-07-29 | 2021-02-02 | 中国石油化工股份有限公司 | Downhole gas lift device and tubular column |
| CN112302545A (en) * | 2019-07-29 | 2021-02-02 | 中国石油化工股份有限公司 | Downhole small tubing device and tubing string |
| CN112302584A (en) * | 2019-07-29 | 2021-02-02 | 中国石油化工股份有限公司 | Downhole gas lift device and tubular column |
-
2015
- 2015-05-20 CN CN201520328045.1U patent/CN204646186U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112302603A (en) * | 2019-07-29 | 2021-02-02 | 中国石油化工股份有限公司 | Natural gas recovery method |
| CN112302577A (en) * | 2019-07-29 | 2021-02-02 | 中国石油化工股份有限公司 | Jet pump drainage device and tubular column |
| CN112302555A (en) * | 2019-07-29 | 2021-02-02 | 中国石油化工股份有限公司 | Downhole locking device and tubular column |
| CN112302589A (en) * | 2019-07-29 | 2021-02-02 | 中国石油化工股份有限公司 | Downhole gas lift device and tubular column |
| CN112302545A (en) * | 2019-07-29 | 2021-02-02 | 中国石油化工股份有限公司 | Downhole small tubing device and tubing string |
| CN112302584A (en) * | 2019-07-29 | 2021-02-02 | 中国石油化工股份有限公司 | Downhole gas lift device and tubular column |
| CN112302577B (en) * | 2019-07-29 | 2022-07-01 | 中国石油化工股份有限公司 | Jet pump drainage device and tubular column |
| CN112302584B (en) * | 2019-07-29 | 2022-12-09 | 中国石油化工股份有限公司 | Downhole gas lift device and tubular column |
| CN112302545B (en) * | 2019-07-29 | 2023-01-31 | 中国石油化工股份有限公司 | Underground small oil pipe device and pipe column |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150916 Termination date: 20160520 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |