CN104563956A - Two-way anchored well plugging device - Google Patents
Two-way anchored well plugging device Download PDFInfo
- Publication number
- CN104563956A CN104563956A CN201410033160.6A CN201410033160A CN104563956A CN 104563956 A CN104563956 A CN 104563956A CN 201410033160 A CN201410033160 A CN 201410033160A CN 104563956 A CN104563956 A CN 104563956A
- Authority
- CN
- China
- Prior art keywords
- pin
- sub
- transposition
- well plugging
- well
- 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
- 230000017105 transposition Effects 0.000 claims abstract description 18
- 238000007789 sealing Methods 0.000 claims abstract description 5
- 238000012856 packing Methods 0.000 claims description 16
- 238000004873 anchoring Methods 0.000 claims description 10
- 241000283986 Lepus Species 0.000 claims description 8
- 239000012634 fragment Substances 0.000 claims description 4
- 125000006850 spacer group Chemical group 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 7
- 229920003266 Leaf® Polymers 0.000 description 4
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011084 recovery Methods 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/128—Packers; Plugs with a member expanded radially by axial pressure
-
- 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/129—Packers; Plugs with mechanical slips for hooking into the casing
- E21B33/1291—Packers; Plugs with mechanical slips for hooking into the casing anchor set by wedge or cam in combination with frictional effect, using so-called drag-blocks
- E21B33/1292—Packers; Plugs with mechanical slips for hooking into the casing anchor set by wedge or cam in combination with frictional effect, using so-called drag-blocks with means for anchoring against downward and upward movement
-
- 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/129—Packers; Plugs with mechanical slips for hooking into the casing
- E21B33/1294—Packers; Plugs with mechanical slips for hooking into the casing characterised by a valve, e.g. a by-pass valve
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)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The invention discloses a two-way anchored well plugging device, and belongs to the technical field of well completions. The device aims to solve the technical problems that a conventional packer cannot be used in inclined wells and horizontal wells, a conventional well plugging process is achieved through using well plugging caps and tripping in bridge plugs, anti-theft performance of the well plugging caps is poor, the cost for tripping in and tripping out bridge plugs is high, and the well plugging caps and the bridge plugs cannot be repeatedly used. According to the technical scheme solving the technical problems, oil pipe threads in a release sub can be connected with an upper tubular column; the release sub is connected with a bypass valve through a release pin and connected with a junk sub through a release pin; the junk sub is provided with eight holes in the radial direction; the holes are communicated with a hole of the bypass valve; the two sides of a channel form a bypass channel in a sealed mode through sealing rubber rings. A body sheath is connected with a slip body on the lower portion through screw threads; a transposition pin is installed in transposition groove of a transposition mandrel. The two-way anchored well plugging device has the advantages of being capable of serving as a packer in a test tubular column and being capable of serving as a well plugging tool in the well completions.
Description
Technical field
Involved in the present invention is completion technique field, and what be specifically related to is bidirectionally anchoring blowout preventer.
Background technology
(1) surveying the conventional packer penetrated in combined tech is that packer is replaced is setting by rotating tubing string, carrys out opening or closing of testing valve under control well by means of the upper and lower motion of tubing string, in the inclined shaft that cannot be used for inconvenience rotation and horizontal well.
(2) conventional shut-in well technique be use well sealer or under enter bridging plug.The theftproof performance of well sealer is poor, under enter, trip out bridging plug costly, and not reproducible use.
Summary of the invention
Goal of the invention of the present invention provides a kind of bidirectionally anchoring blowout preventer for the problems referred to above, and this bidirectionally anchoring blowout preventer both can use as packer in test string, also can when completion as the instrument of blowout preventer.
The present invention solves the technical scheme that its technical problem takes: bidirectionally anchoring blowout preventer is made up of upper coupling part, transposition righting part, slips part, packing element hermetic unit; Tubing round thread in back-off sub can be connected with top tubing string, back-off sub is connected with pin of giving up with bypass valve, be connected with pin of giving up with fishing joint, fishing joint radial direction has 8 holes, is communicated with the hole of bypass valve, and the both sides of passage have reached into bypass passageways with O-ring seal sealing; The slips body of body sheath and bottom is by screwed connection, and transpositing pin is arranged in the transposition groove of transposition axle.
The invention has the beneficial effects as follows, this bidirectionally anchoring blowout preventer both can use as packer in test string, also can when completion as the instrument of blowout preventer.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
1 back-off sub in figure, 2 pistons cut off, 3 plugs, 4 give up pin, 5 fishing joints, 6 bypass valve, 7 transposition axles, 8 body sheaths, 9 rotary bodies, 10 transpositing pins, 11 anti-friction rings, 12 frictional resistance blocks, 13 frictional resistance block shell fragments, 14 body openings rings, 15 slips bodies, 16 flat head screws, 17 sheaths, 18 slip insert spring leafs, 19 slip inserts, 20 slips cones, 21 mechanical brakes, 22 packing element axles, jack rabbit on 23, 24 packing element core pipes, 25 packing elements, 26 spacer rings, 27 times jack rabbits, 28 lower contacts.
Detailed description of the invention
Below in conjunction with Fig. 1, the present invention is further illustrated, and as shown in the figure, bidirectionally anchoring blowout preventer is made up of upper coupling part, transposition righting part, slips part, packing element hermetic unit; Connect that salvaging part cuts off 2 by back-off sub 1, piston, plug 3, pin 4 of giving up, fishing joint 5, bypass valve 6 form, tubing round thread in back-off sub 1 can be connected with top tubing string, back-off sub 1 is connected with pin 4 of giving up with bypass valve 6, be connected with pin 4 of giving up with fishing joint 5, fishing joint 5 radial direction has 8 holes, be communicated with the hole of bypass valve 6, the both sides of passage have reached into bypass passageways with O-ring seal sealing.Transposition righting part is made up of the axle 7 that replaces, body sheath 8, rotary body 9, transpositing pin 10, anti-friction ring 11, frictional resistance block 12, frictional resistance block shell fragment 13; The slips body 15 of body sheath 8 and bottom is by screwed connection, and transpositing pin 10 is arranged in the transposition groove of transposition axle 7, to guarantee that slips part is run along transposition axle about 7, realizes the setting of blowout preventer and deblocking.Frictional resistance block 12, under the effect of frictional resistance block shell fragment 13, can play the effect of righting.Slips part is made up of body openings ring 14, slips body 15, sheath 17, slip insert spring leaf 18, slip insert 19, slips cone 20, mechanical brake 21. and slip insert 19 is under the effect of slip insert spring leaf 18, abut against on the conical surface of slips cone 20, slip insert 19 struts by the conical surface, prop up well bore wall, achieve the grappling effect of bidirectionally anchoring blowout preventer.Packing element hermetic unit is made up of axle 22, upper jack rabbit 23, packing element core pipe 24, packing element 25, spacer ring 26, lower jack rabbit 27, lower contact 28, during upper lifting pipe post, transposition righting part, slips part are descending along transposition axle 7, jack rabbit 23 in promotion, lower jack rabbit 27 have employed with packing element axle 22 and is threaded, and is be fixedly connected with, packing element 25 is squeezed, spreading, seals with well bore wall, plays the effect of separating well section or shut-in well.Mechanical brake 21 is engaged with the annular tooth of slips cone 20 inside, effectively prevents the bounce-back of packing element 25, better achieves the effect of sealing.
During recovery, directly pressed down by the tubing string with fisher, bypass valve 6 is descending, bypass passageways is opened, and balances the pressure of instrument upper and lower, and fastens fishing joint 5, continue pressurization 3-5 ton, mechanical brake 21 lost efficacy, and transposition axle 7, axle 22, packing element core pipe 24 move down, transpositing pin 10 skids off setting groove, slip insert 19 sets back under the effect of slip insert spring leaf 18, and packing element 25 shrinks, and realizes deblocking, then upper lifting pipe post, can trip out bidirectionally anchoring blowout preventer.
Claims (1)
1. a bidirectionally anchoring blowout preventer is by back-off sub (1), piston cuts off (2), plug (3), to give up pin (4), fishing joint (5), bypass valve (6), transposition axle (7), body sheath (8), rotary body (9), transpositing pin (10), anti-friction ring (11), frictional resistance block (12), frictional resistance block shell fragment (13), body openings ring (14), slips body (15), flat head screw (16), sheath (17), slip insert spring leaf (18), slip insert (19), slips cone (20), mechanical brake (21), packing element axle (22), upper jack rabbit (23), packing element core pipe (24), packing element (25), spacer ring (26), lower jack rabbit (27), lower contact (28) forms, and it is characterized in that the tubing round thread in back-off sub (1) can be connected with top tubing string, back-off sub (1) is connected with pin of giving up (4) with bypass valve (6), be connected with pin of giving up (4) with fishing joint (5), fishing joint (4) radial direction has 8 holes, is communicated with the hole of bypass valve (6), and the both sides of passage have reached into bypass passageways with O-ring seal sealing, the slips body (15) of body sheath (8) and bottom is by screwed connection, and transpositing pin (10) is arranged in the transposition groove of transposition axle (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410033160.6A CN104563956A (en) | 2014-01-24 | 2014-01-24 | Two-way anchored well plugging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410033160.6A CN104563956A (en) | 2014-01-24 | 2014-01-24 | Two-way anchored well plugging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104563956A true CN104563956A (en) | 2015-04-29 |
Family
ID=53080941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410033160.6A Pending CN104563956A (en) | 2014-01-24 | 2014-01-24 | Two-way anchored well plugging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104563956A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110984901A (en) * | 2019-11-06 | 2020-04-10 | 大庆油田有限责任公司 | Blowout prevention packer for quick pumping down and well completion after fracturing |
| CN114278247A (en) * | 2021-12-31 | 2022-04-05 | 大庆金祥寓科技有限公司 | Ejection-blocking combined bidirectional blowout preventer controlled by setting by electronic coding technology |
| CN116658116A (en) * | 2023-07-31 | 2023-08-29 | 成都若克石油技术开发有限公司 | Packer for positioning perforation and use method |
| CN117345140A (en) * | 2023-12-05 | 2024-01-05 | 大庆金祥寓科技有限公司 | Supporting anchor device for jetting and decoupling same-hole secondary perforation |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87210515U (en) * | 1987-09-02 | 1988-05-11 | 辽河石油勘探局欢喜岭采油厂 | Mechanical packer for heating well |
| CN87210519U (en) * | 1987-09-04 | 1988-06-22 | 辽河石油勘探局高升采油厂 | Mechanical packer for preventing heat dynamic cycle |
| RU2304695C1 (en) * | 2005-12-08 | 2007-08-20 | Открытое акционерное общество "Татнефть" им. В.Д. Шашина | Packer |
| CN201037396Y (en) * | 2007-05-22 | 2008-03-19 | 张志超 | Upstrain release repeatable unset packer |
| CN201326408Y (en) * | 2008-09-17 | 2009-10-14 | 濮阳市太和测试技术有限公司 | 2*** inch gas well downhole choke |
| CN201851069U (en) * | 2010-09-13 | 2011-06-01 | 禹栽星 | Multi-purpose anchor packer |
| CN201857931U (en) * | 2010-08-13 | 2011-06-08 | 盐城市鑫源石化机械有限公司 | Tubing plug |
| CN203796207U (en) * | 2014-01-24 | 2014-08-27 | 大庆红祥寓科技有限公司 | Two-way anchoring well plugging device |
-
2014
- 2014-01-24 CN CN201410033160.6A patent/CN104563956A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87210515U (en) * | 1987-09-02 | 1988-05-11 | 辽河石油勘探局欢喜岭采油厂 | Mechanical packer for heating well |
| CN87210519U (en) * | 1987-09-04 | 1988-06-22 | 辽河石油勘探局高升采油厂 | Mechanical packer for preventing heat dynamic cycle |
| RU2304695C1 (en) * | 2005-12-08 | 2007-08-20 | Открытое акционерное общество "Татнефть" им. В.Д. Шашина | Packer |
| CN201037396Y (en) * | 2007-05-22 | 2008-03-19 | 张志超 | Upstrain release repeatable unset packer |
| CN201326408Y (en) * | 2008-09-17 | 2009-10-14 | 濮阳市太和测试技术有限公司 | 2*** inch gas well downhole choke |
| CN201857931U (en) * | 2010-08-13 | 2011-06-08 | 盐城市鑫源石化机械有限公司 | Tubing plug |
| CN201851069U (en) * | 2010-09-13 | 2011-06-01 | 禹栽星 | Multi-purpose anchor packer |
| CN203796207U (en) * | 2014-01-24 | 2014-08-27 | 大庆红祥寓科技有限公司 | Two-way anchoring well plugging device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110984901A (en) * | 2019-11-06 | 2020-04-10 | 大庆油田有限责任公司 | Blowout prevention packer for quick pumping down and well completion after fracturing |
| CN114278247A (en) * | 2021-12-31 | 2022-04-05 | 大庆金祥寓科技有限公司 | Ejection-blocking combined bidirectional blowout preventer controlled by setting by electronic coding technology |
| CN116658116A (en) * | 2023-07-31 | 2023-08-29 | 成都若克石油技术开发有限公司 | Packer for positioning perforation and use method |
| CN116658116B (en) * | 2023-07-31 | 2024-01-30 | 成都若克石油技术开发有限公司 | Packer for positioning perforation and use method |
| CN117345140A (en) * | 2023-12-05 | 2024-01-05 | 大庆金祥寓科技有限公司 | Supporting anchor device for jetting and decoupling same-hole secondary perforation |
| CN117345140B (en) * | 2023-12-05 | 2024-02-27 | 大庆金祥寓科技有限公司 | Supporting anchor device for jetting and decoupling same-hole secondary perforation |
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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 | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150429 |