CN105625983A - Automatic downhole switch for oil well construction - Google Patents
Automatic downhole switch for oil well construction Download PDFInfo
- Publication number
- CN105625983A CN105625983A CN201510962023.5A CN201510962023A CN105625983A CN 105625983 A CN105625983 A CN 105625983A CN 201510962023 A CN201510962023 A CN 201510962023A CN 105625983 A CN105625983 A CN 105625983A
- Authority
- CN
- China
- Prior art keywords
- valve
- well
- supporting seat
- shut
- hole
- 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.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B34/10—Valve arrangements for boreholes or wells in wells operated by control fluid supplied from outside the borehole
- E21B34/102—Valve arrangements for boreholes or wells in wells operated by control fluid supplied from outside the borehole with means for locking the closing element in open or closed position
- E21B34/103—Valve arrangements for boreholes or wells in wells operated by control fluid supplied from outside the borehole with means for locking the closing element in open or closed position with a shear pin
Abstract
The invention provides an automatic downhole switch for oil well construction. The problems that an existing downhole switch is complicated in on-off operation and structure are mainly solved. The automatic downhole switch for oil well construction is characterized in that a supporting base (3) is fixed in a lower connector (2) through an upper connector (1); a liquid passing hole (6) is formed in the periphery of the supporting base (3); an annular groove (8) matched with a clamping spring (7) is formed in the upper end of a main hole of the supporting base (3); a wave rotation pin (9) is arranged inside the lower portion of the main hole of the supporting base (3); an opening is formed in the position, corresponding to the liquid passing hole (6), of a blocking plate (4); the upper end of the blocking plate (4) is connected with a well shutting valve (5); the well shutting valve (5) is in a T shape, the lower end surface of the well shutting valve (5) is a bevel, and a copper sheet (11) is inlaid on the upper end surface of the well shutting valve (5); the clamping spring (7) is arranged in a groove in the neck of the well shutting valve (5); the well shutting valve (5) is connected in the main hole of the supporting base (3) through a shearing pin (12). The automatic downhole switch for oil well construction has the characteristics of being simple in on-off operation and structure.
Description
Technical field:
The present invention relates to the downhole tool used by a kind of oil extraction in oil field, especially well construction down-hole switchs automatically.
Background technology:
Along with today that oil field develops rapidly, safety and environmental protection and energy-conservation be pendulum top priority in face of us. Particularly sump oil sewage discharge problem during workover treatment, is the arch-criminal of environmental pollution. It addition, want oil-water seal to get lodged in well, down-hole switch of need to contacting on tubing string. And there is switching manipulation and baroque problem due to reasons in structure in existing down-hole switch. It is unfavorable for popularization and application.
Along with the normal phase water filling in oil field, note is poly-waits exploitation, pit shaft and stratum occur in that fouling or blocking, when solving these problems, due to being not closed completely of the various gate of well head, or oil pipe is contained within gas, makes in various corrosive liquids entrance oil pipe more or less, causing oil well pump to miss because various parts are corroded, serious meeting makes the dirt in oil pipe come off and causes holddown. Additionally, when oil well operation is constructed, profit often overflows with well head or workman, both environmental pollution had been caused, bringing construction inconvenience to workman again, for solving an above-mentioned difficult problem, my company develops a kind of down-hole and automatically switchs, need not just complete down-hole switch operation by any equipment, and achieving environmental protection and energy saving.
Summary of the invention:
In order to solve the switching manipulation of existing down-hole switch and baroque problem. The present invention provides a kind of well construction down-hole automatically to switch. This well construction down-hole switchs the feature with switching manipulation and simple in construction automatically.
The technical scheme is that this well construction down-hole switchs automatically and include top connection, lower contact, supporting seat, closure dish and shut-in valve. Supporting seat is fixed in lower contact by top connection, supporting seat periphery has liquid pass hole, having the annular groove matched with jump ring in supporting seat main aperture upper end, have ripple to ship and resell on another market nail in supporting seat main aperture bottom, on closure dish, corresponding liquid pass hole has opening, closure dish upper end is connected with shut-in valve, shut-in valve is T-shaped, and lower surface is inclined-plane, and upper surface is inlaid with copper sheet, shut-in valve neck groove is built-in with jump ring, and shut-in valve is connected in supporting seat main aperture by cutting off pin.
There is advantages that this well construction down-hole switchs owing to adopting supporting seat to be fixed in lower contact by top connection automatically, supporting seat periphery has liquid pass hole, supporting seat main aperture has, in upper end, the annular groove matched with jump ring, ripple is had to ship and resell on another market nail in supporting seat main aperture bottom, on closure dish, corresponding liquid pass hole has opening, closure dish upper end is connected with shut-in valve, shut-in valve is T-shaped, lower surface is inclined-plane, upper surface is inlaid with copper sheet, shut-in valve neck groove is built-in with jump ring, and shut-in valve is by cutting off the structure that pin is connected in supporting seat main aperture. Utilize closure dish closed-in well, make down-hole well liquid can not be sprayed by tubing string, it is achieved closing well automatically, thus simplify operation, simple in construction. This well construction down-hole switchs the feature with switching manipulation and simple in construction automatically thus.
Accompanying drawing illustrates:
Accompanying drawing 1 is present configuration schematic diagram.
1-top connection in figure, 2-lower contact, 3-supporting seat, 4-closure dish, 5-shut-in valve, 6-liquid pass hole, 7-jump ring, 8-annular groove, 9-ripple is shipped and resell on another market nail, and 10-opening, 11-copper sheet, 12-cuts off pin.
Detailed description of the invention:
Below in conjunction with accompanying drawing, the invention will be further described:
Shown in accompanying drawing, this well construction down-hole automatically switchs and includes top connection 1, lower contact 2, supporting seat 3, closure dish 4 and shut-in valve 5. Supporting seat 3 is fixed in lower contact 2 by top connection 1, and supporting seat 3 periphery has 4 liquid pass holes 6, and liquid pass hole 6 is how many to be increased and decreased according to oil well pump size, and when normal oil well pump runs, well liquid is entered by liquid pass hole 6. There is the annular groove 8 matched with jump ring 7 in supporting seat 3 main aperture upper end, jump ring 7 coordinate with annular groove 8 and shut-in valve 5 is locked in supporting seat 3. There is ripple to ship and resell on another market nail 9 in supporting seat 3 main aperture bottom, coordinated with inclined-plane, shut-in valve 5 lower end from ship and resell on another market nail 9 of ripple the opening 10 on closure dish 4 and liquid pass hole 6 are aligned, thus open down-hole and cross liquid passage. On closure dish 4, corresponding liquid pass hole 6 has opening 10, and closure dish 4 upper end is connected with shut-in valve 5, and shut-in valve 5 is T-shaped, and lower surface is inclined-plane, and upper surface is inlaid with copper sheet 11, and copper sheet 11 improves sealing effectiveness with oil pump plunger piston. Shut-in valve 5 neck groove is built-in with jump ring 7, and shut-in valve 5 is connected in supporting seat 3 main aperture by cutting off pin 12, and when lower oil well pump operation, shut-in valve 5 is locked in supporting seat 3 main aperture by cutting off pin 12, is closed by oil well pump.
Time actually used, first the top connection 1 that this well construction down-hole switchs automatically being connected with oil well pump lower end, the lower standing valve of oil well pump is connected to lower contact 2 times, connects and goes into the well. The closure dish 4 that when going into the well, this well construction down-hole switchs automatically is pressed on below supporting seat 3; on supporting seat 3, liquid pass hole 6 and closure dish 4 upper shed 10 are staggered; this well construction down-hole automatically switchs and is closed; well liquid will not spray when lower oil well pump or spill over ground; protect environment, economize on resources. When under oil well pump to rod whip shut-in valve 5 after projected depth, cut off pin 12 and cut off, shut-in valve 5 coordinates with inclined-plane, shut-in valve 5 lower end at ripple nail 9 of shipping and reselling on another market, and the opening 10 on closure dish 4 and liquid pass hole 6 is aligned, thus opens down-hole and cross liquid passage. Oil well pump can be properly functioning. When shaft mouth operation; as changed packing box and valve etc., or during underground work, such as pickling well; unload rod weight; oil pump plunger piston internal channel on the copper sheet 11 of shut-in valve 5 upper end, owing to the soft rod weight of copper sheet 11 is big, and then is sealed up by sucker rod by oil pump plunger piston seat; realize the purpose of closing well; well liquid will not spray when operation or spill over ground, protects environment, economizes on resources.
Namely automatically being switched this well construction down-hole is arranged between oil pumping barrel and standing valve, now this well construction down-hole switchs as closed mode automatically, with oil pipe G.I.H, when instantly arriving last root sucker rod, to slowly transfer to the end, now this well construction down-hole automatically switchs and automatically opens up, but liquid will not on return, then polished rod mention after oil liquid in pipe start on return, treat that build-up of fluid is normal, examination take out qualified after, connect Well head flow path and just can open and take out. Additionally, when pumpingh well carries out other operation of fixed tubular column, as: various acidifying de-plugging scale removal, well head changes rubber gate, blowout prevention box and maintenance Well head flow path etc., for not allowing corrosive liquids enter pump barrel or well head hydrojet, polished rod is had only to transfer to the end, this well construction down-hole automatically switchs and will be automatically switched off, and after polished rod is mentioned, automatically opens up again, this well construction down-hole automatically switchs and can use repeatedly, it is ensured that seal. The advantage one that this well construction down-hole switchs automatically is to seal reliably, durable in use, easy to operate, energy-conserving and environment-protective, it is not necessary to any optional equipment is operated. Two be this well construction down-hole automatically switch through producer overhaul after reusable.
Claims (1)
1. a well construction down-hole switchs automatically, including top connection (1), lower contact (2), supporting seat (3), closure dish (4) and shut-in valve (5), it is characterized in that: supporting seat (3) is fixed in lower contact (2) by top connection (1), supporting seat (3) periphery has liquid pass hole (6), the annular groove (8) matched with jump ring (7) is had in supporting seat (3) main aperture upper end, ripple is had to ship and resell on another market nail (9) in supporting seat (3) main aperture bottom, the upper corresponding liquid pass hole (6) of closure dish (4) has opening (10), closure dish (4) upper end is connected with shut-in valve (5), shut-in valve (5) is for T-shaped, lower surface is inclined-plane, upper surface is inlaid with copper sheet (11), shut-in valve (5) neck groove is built-in with jump ring (7), shut-in valve (5) is connected in supporting seat (3) main aperture by cutting off pin (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510962023.5A CN105625983B (en) | 2015-12-08 | 2015-12-08 | Well construction underground automatic switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510962023.5A CN105625983B (en) | 2015-12-08 | 2015-12-08 | Well construction underground automatic switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105625983A true CN105625983A (en) | 2016-06-01 |
| CN105625983B CN105625983B (en) | 2018-08-14 |
Family
ID=56041274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510962023.5A Active CN105625983B (en) | 2015-12-08 | 2015-12-08 | Well construction underground automatic switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105625983B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106321014A (en) * | 2016-11-23 | 2017-01-11 | 西南石油大学 | Kelly bar check valve nipple based on thrust slopes |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5320181A (en) * | 1992-09-28 | 1994-06-14 | Wellheads & Safety Control, Inc. | Combination check valve & back pressure valve |
| US20020070028A1 (en) * | 2000-12-08 | 2002-06-13 | Garcia Christian D. | Debris free valve apparatus |
| US20030116320A1 (en) * | 2001-12-20 | 2003-06-26 | Szarka David D. | Circulating cementing collar and method |
| CN2564742Y (en) * | 2002-08-21 | 2003-08-06 | 赵春新 | Blow-out and sand prevention downhole valve |
| CN201486519U (en) * | 2009-08-04 | 2010-05-26 | 李明文 | High-pressure unimpeded switch valve |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2329792Y (en) * | 1997-12-31 | 1999-07-21 | 胜利石油管理局河口采油厂 | Rod-type pump under-well non-pressing well device |
| GB0906522D0 (en) * | 2009-04-16 | 2009-05-20 | Specialised Petroleum Serv Ltd | Downhole tool valve and method of use |
| CN202325407U (en) * | 2011-11-19 | 2012-07-11 | 中国石油天然气股份有限公司 | Disc-type switch for realizing opening and closing of well under oil-field well |
| CN102561994A (en) * | 2012-02-28 | 2012-07-11 | 盐城彩阳电器阀门有限公司 | Completion reoperation blowout control tail tube valve |
-
2015
- 2015-12-08 CN CN201510962023.5A patent/CN105625983B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5320181A (en) * | 1992-09-28 | 1994-06-14 | Wellheads & Safety Control, Inc. | Combination check valve & back pressure valve |
| US20020070028A1 (en) * | 2000-12-08 | 2002-06-13 | Garcia Christian D. | Debris free valve apparatus |
| US20030116320A1 (en) * | 2001-12-20 | 2003-06-26 | Szarka David D. | Circulating cementing collar and method |
| CN2564742Y (en) * | 2002-08-21 | 2003-08-06 | 赵春新 | Blow-out and sand prevention downhole valve |
| CN201486519U (en) * | 2009-08-04 | 2010-05-26 | 李明文 | High-pressure unimpeded switch valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106321014A (en) * | 2016-11-23 | 2017-01-11 | 西南石油大学 | Kelly bar check valve nipple based on thrust slopes |
| CN106321014B (en) * | 2016-11-23 | 2018-11-13 | 西南石油大学 | A kind of kelly bar ball-and-seat pipe nipple based on thrust inclined-plane |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105625983B (en) | 2018-08-14 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181207 Address after: 163000 Chengfeng Street 612, Jeanhu Road District, Daqing City, Heilongjiang Province Patentee after: Daqing China Airlines Petroleum Machinery Manufacturing Co., Ltd. Address before: 163000 Seoul International A12-2-1803, Saertu District, Daqing City, Heilongjiang Province Patentee before: Wang Junde |
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| TR01 | Transfer of patent right |