CN105625979A - Slide way type packer for step-by-step unpacking - Google Patents
Slide way type packer for step-by-step unpacking Download PDFInfo
- Publication number
- CN105625979A CN105625979A CN201610142233.4A CN201610142233A CN105625979A CN 105625979 A CN105625979 A CN 105625979A CN 201610142233 A CN201610142233 A CN 201610142233A CN 105625979 A CN105625979 A CN 105625979A
- Authority
- CN
- China
- Prior art keywords
- slideway
- lock ring
- cylinder
- pin
- envelope
- 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.)
- Granted
Links
- 239000000725 suspension Substances 0.000 claims description 28
- 238000011010 flushing procedure Methods 0.000 claims description 22
- 238000012856 packing Methods 0.000 claims description 21
- 230000005540 biological transmission Effects 0.000 claims description 14
- 210000004907 gland Anatomy 0.000 claims description 14
- 239000003292 glue Substances 0.000 claims description 13
- 125000006850 spacer group Chemical group 0.000 claims description 7
- 239000012530 fluid Substances 0.000 claims description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000005484 gravity Effects 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
- E21B33/1208—Packers; Plugs characterised by the construction of the sealing or packing means
-
- 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
- E21B33/122—Multiple string packers
-
- 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
- E21B33/1285—Packers; Plugs with a member expanded radially by axial pressure by fluid 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
- 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
-
- 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
- E21B2200/00—Special features related to earth drilling for obtaining oil, gas or water
- E21B2200/06—Sleeve valves
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)
- Actuator (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The invention relates to a slide way type packer for step-by-step unpacking.A long slide way, a short slide way and a hook arm groove are formed in the outer wall of the lower portion of an upper central pipe.The short slide way is obliquely arranged and communicated with the long slide way to form a V shape.The hook arm groove is located beside the long slide way and communicated with the upper portion of the long slide way.A hook arm is arranged at the upper portion of an unpacking hook cylinder.The top of the hook arm is inserted in the hook arm groove.The top of a slide way pin is arranged in the short slide way and can slide in the long slide way and the short slide way.The slide way pin can drive the hook arm to slide together in the long slide way.By achieving hanging through a fixing pin and achieving unpacking through the slide ways, unpacking tensile force is low; when multiple packers are unpacked, step-by-step unpacking is adopted, and the problems that when packers are unpacked, pins need to be cut off, unpacking tensile force is large and it is not convenient to unpack the multiple packers are solved thoroughly.
Description
Technical field
The invention belongs to field of tool under oil well, it relates to a kind of chute type gradually deblocking packer.
Background technology
In field produces, pkr is conventional subsurface tool, existing pkr adopts, when separating envelope, the mode cutting off pin usually, but the pulling force cutting off pin needs is bigger, especially when the series connection of multiple pkr uses, directly adopting upper lifting pipe post, it is very difficult that the disposable solution of the pulling force that utilization is carried seals multiple pkr, often causes to separate and seals unsuccessfully. Consequently, it is desirable to existing pkr is done further improvement.
Summary of the invention
It is an object of the invention to provide a kind of chute type gradually deblocking packer, solving current pkr needs to cut off pin when separating envelope, separates envelope pulling force big, is not easy to untie the problem of multiple pkr.
The present invention is achieved through the following technical solutions: a kind of chute type gradually deblocking packer, comprise top connection, gate ring, lock block, gland pin, lock block gland, upper suspension is overlapped, anti-back lock ring, upper center tube, lower suspension is overlapped, slideway pin, protection cylinder, pipe core, seal cartridge, main solution envelope pin, well-flushing piston, separate envelope hook cylinder, piston bore, fixing pin, upper glue tube base, bushing pipe, middle packing element, spacer ring, limit packing element, lower rubber cylinder seat, secondary solution seals pin, lock ring is hung, separate big envelope, lock ring, lock ring cover, set pin, set cylinder cylinder, set piston and lower sub, the bottom of described top connection and upper center tube are dead by lock block lock, upper center tube locks block place in correspondence pressure transmission hole, lock block gland is connected with the lock pressured cover pin of block, compact lock block simultaneously, top connection outside is hung with and hangs cover, gate ring is equipped with at upper suspension cover top, upper suspension cover and lower suspension cover pass through screwed connection, there is groove in the outside of described upper center tube, and groove, built with anti-back lock ring, the inwall of lower suspension cover has lock ring tooth, and anti-back lock ring and lock ring tooth can be engaged, and lower suspension cover bottom is fixing is equipped with slideway pin, described upper center tube bottom and pipe core pass through screwed connection, there is upper and lower pressure transmission hole pipe core side, for separating envelope hook cylinder outside pipe core, separate envelope hook cylinder top and separate, by main, the upper pressure transmission hole place that envelope pin is fixed on pipe core, the bottom separating envelope hook cylinder, by screwed connection solution big envelope, is separated and is had many well-flushing passages in the middle of big envelope sidewall, outside step is arranged at the described lower bottom hanging cover, lower suspension cover is outside is protection cylinder, inside step is arranged at protection cylinder top, it is engaged mutually with the lower step hanging cover bottom outside, bottom and the seal cartridge of protection cylinder pass through screwed connection, screwed connection is passed through with piston bore again outside seal cartridge, piston bore has inlet opening, between piston bore and solution envelope hook cylinder, well-flushing piston is housed, screwed connection is passed through with upper glue tube base again in piston bore bottom, upper glue tube base is fixed on pipe core by fixing pin by the well-flushing passage separated on big envelope again, and separate big envelope can be freely up and down movable, the outside of described solution big envelope is bushing pipe, fluid hole is arranged at the bottom of bushing pipe, the top of bushing pipe and upper glue tube base are by screwed connection, and the bottom of bushing pipe is hung with lock ring and is connected by pair solution envelope pin, and lock ring has hung up lock ring, lock ring hangs inner side, and by separating, big envelope supports, bushing pipe outer sheath has two limit packing elements, two spacer rings and a middle packing element, and bushing pipe bottom is lower rubber cylinder seat, and lower rubber cylinder seat passes through screwed connection with lock ring cover again, having lock ring tooth on lock ring cover inwall, lock ring can be engaged mutually with lock ring tooth, screwed connection is passed through on bottom and the lower sub top of described pipe core, cylinder cylinder passes through screwed connection to the upper outside of lower sub with setting, set to be provided with in cylinder cylinder and set piston, set the outside that piston is positioned under pipe core pressure transmission hole, set the bottom overlapped with lock ring again on piston top by screwed connection, set pin and be arranged on lock ring cover and set between cylinder cylinder, the bottom outer wall of described upper center tube has long slideway, short slideway and hook arm groove, short slideway is obliquely installed and is connected into V-type with long slideway, hook arm groove is arranged at long slideway side and top with long slideway communicates, hook arm is equipped with on the top separating envelope hook cylinder, hook arm top assigns in hook arm groove, slideway dowel ends is placed in the short slideway of long slideway and short slideway, and can slide in long slideway and short slideway, and slideway pin can drive hook arm to slide together in long slideway.
Further, described long slideway and short slideway are many groups, respectively along the evenly arrangement of upper center tube outer wall circumference.
Further, described long slideway and short slideway are four groups, and wherein long slideway side is provided with hook arm groove in two groups, and hook arm groove communicates with the top of long slideway.
Adopt the positively effect of technique scheme: the present invention adopts fixing pin to hang, utilize slideway solution to seal, separate envelope pulling force low, when separating the multiple pkr of envelope, adopt the mode of gradually deblocking, thoroughly solve pkr to need to cut off pin when separating envelope, separate envelope pulling force big, it is not easy to untie the problem of multiple pkr.
Accompanying drawing explanation
Fig. 1 is the structural representation one of the present invention;
Fig. 2 is the structural representation two of the present invention;
Fig. 3 is the outer wall tiling schematic diagram that upper center tube conciliates envelope hook cylinder.
In figure, 1 top connection, 2 gate rings, 3 lock blocks, 4 gland pins, 5 lock block glands, cover is hung on 6, 7 anti-back lock rings, 8 upper center tubes, hang cover 9 times, 10 slideway pins, 11 protection cylinders, 12 pipe cores, 13 seal cartridges, 14 main solution envelope pins, 15 well-flushing pistons, 16 separate envelope hook cylinder, 17 piston bores, 18 fixing pins, glue tube base on 19, 20 bushing pipes, packing element in 21, 22 spacer rings, 23 limit packing elements, 24 lower rubber cylinder seats, 25 secondary solutions seal pin, 26 lock rings are hung, 27 solution big envelopes, 28 lock rings, 29 lock ring covers, 30 set pin, 31 set cylinder cylinder, 32 set piston, 33 lower subs, 34 long slideways, 35 short slideways, 36 hook arm grooves, 37 hook arm.
Embodiment
Below in conjunction with accompanying drawing, the technical scheme of the present invention is described further, but should not be construed as limitation of the present invention:
The outer wall tiling schematic diagram of Fig. 1 is the structural representation one, Fig. 2 of the present invention to be the structural representation two, Fig. 3 of the present invention be upper center tube conciliates envelope hook cylinder, as shown in the figure, a kind of chute type gradually deblocking packer, comprises top connection 1, gate ring 2, lock block 3, gland pin 4, lock block gland 5, upper suspension cover 6, anti-back lock ring 7, upper center tube 8, lower suspension cover 9, slideway pin 10, protection cylinder 11, pipe core 12, seal cartridge 13, main solution envelope pin 14, well-flushing piston 15, separate envelope hook cylinder 16, piston bore 17, fixing pin 18, upper glue tube base 19, bushing pipe 20, middle packing element 21, spacer ring 22, limit packing element 23, lower rubber cylinder seat 24, secondary solution seals pin 25, lock ring hangs 26, separate big envelope 27, lock ring 28, lock ring cover 29, set pin 30, set cylinder cylinder 31, set piston 32 and lower sub 33, the bottom of described top connection 1 and upper center tube 8 are locked extremely by lock block 3, upper center tube 8 locks block 3 place in correspondence pressure transmission hole, lock block gland 5 is connected with the lock pressured cover pin 4 of block 3, compact lock block 3 simultaneously, top connection 1 outside is hung with suspension cover 6, and gate ring 2 is equipped with at upper suspension cover 6 tops, and upper suspension cover 6 and lower suspension cover 9 pass through screwed connection, there is groove in the outside of described upper center tube 8, and groove, built with anti-back lock ring 7, the lower inwall hanging cover 9 has lock ring tooth, and anti-back lock ring 7 and lock ring tooth can be engaged, and lower suspension cover 9 bottoms are fixing is equipped with slideway pin 10. described upper center tube 8 bottom and pipe core 12 pass through screwed connection, there is upper and lower pressure transmission hole pipe core 12 side, for separating envelope hook cylinder 16 outside pipe core 12, separate envelope hook cylinder 16 top and separate, by main, the upper pressure transmission hole place that envelope pin 14 is fixed on pipe core 12, the bottom separating envelope hook cylinder 16, by screwed connection solution big envelope 27, is separated and is had many well-flushing passages in the middle of big envelope 27 sidewall. outside step is arranged at the described lower bottom hanging cover 9, lower suspension cover 9 is outside is protection cylinder 11, inside step is arranged at protection cylinder 11 top, it is engaged mutually with step outside bottom lower suspension cover 9, bottom and the seal cartridge 13 of protection cylinder 11 pass through screwed connection, screwed connection is passed through with piston bore 17 again outside seal cartridge 13, piston bore 17 there is inlet opening, between piston bore 17 and solution envelope hook cylinder 16, well-flushing piston 15 is housed, screwed connection is passed through with upper glue tube base 19 again in piston bore 17 bottom, upper glue tube base 19 is fixed on pipe core 12 by fixing pin 18 by the well-flushing passage separated on big envelope 27 again, and separate big envelope 27 can be freely up and down movable. the outside of described solution big envelope 27 is bushing pipe 20, fluid hole is arranged at the bottom of bushing pipe 20, top and the upper glue tube base 19 of bushing pipe 20 pass through screwed connection, the bottom of bushing pipe 20 is hung 26 and is connected by pair solution envelope pin 25 with lock ring, lock ring is hung has lock ring 28 on 26, lock ring is hung and is supported by separating big envelope 27 inside 26, bushing pipe 20 outer sheath has two limit packing elements, 23, two spacer rings 22 and a middle packing element 21, bushing pipe 20 bottom is lower rubber cylinder seat 24, lower rubber cylinder seat 24 overlaps 29 with lock ring again and passes through screwed connection, lock ring overlaps lock ring tooth on 29 inwalls, lock ring 28 can be engaged mutually with lock ring tooth. screwed connection is passed through on bottom and lower sub 33 top of described pipe core 12, cylinder cylinder 31 passes through screwed connection to the upper outside of lower sub 33 with setting, set to be provided with in cylinder cylinder 31 and set piston 32, set the outside that piston 32 is positioned at pipe core 12 times pressure transmission holes, set the bottom overlapping again 29 with lock ring in piston 32 top by screwed connection, set pin 30 and be arranged on lock ring cover 29 and set between cylinder cylinder 31.The bottom outer wall of described upper center tube 8 has long slideway 34, short slideway 35 and hook arm groove 36, short slideway 35 is obliquely installed and is connected into V-type with long slideway 34, hook arm groove 36 is arranged at long slideway 34 side and top with long slideway 34 communicates, hook arm 37 is arranged at the top separating envelope hook cylinder 16, hook arm 37 top assigns in hook arm groove 36, slideway pin 10 end is placed in the short slideway 35 of long slideway 34 and short slideway 35, and can slide in long slideway 34 and short slideway 35, and slideway pin 10 can drive hook arm 37 to slide together in long slideway 34. Therefore, while utilizing slideway pin upwards to slide, drive hook arm upper row together, and then drive row on solution envelope hook cylinder.
Further, convenient during in order to use, described long slideway 34 and short slideway 35 are many groups, respectively along the evenly arrangement of upper center tube 8 outer wall circumference. Concrete, described long slideway 34 and short slideway 35 are four groups, and wherein long slideway 34 side is provided with hook arm groove 36 in two groups, and hook arm groove 36 communicates with the top of long slideway 34.
The principle of work of chute type gradually deblocking packer:
One, set
Chute type gradually deblocking packer is connected to the suitable position of oil, well completion tubular column, go into the well with tubing string, locate qualified rear release, under the effect of the pressure, pressure transmission hole in upper center tube and the upper and lower inlet opening in pipe core enter liquid simultaneously, pressure transmission hole in upper center tube enters liquid and promotes lock block gland to cut off gland pin, lock block gland is descending, lock block disengages upper center tube, making top connection and upper center tube untie locking state, now suspending weight below pkr all acts on and (acts in process of going into the well on lock block) on slideway pin;
Upper inlet opening in pipe core enters liquid and promotes well-flushing descent of piston, closes the inlet opening of well-flushing passage;
Lower inlet opening in pipe core enters liquid promotion and sets upstroke, setting piston driving lock ring to put row and cut off and set pin, capable continuations in, promotion lower rubber cylinder seat compresses two limit packing elements and a middle packing element, when compressing distance and reach certain value, the lock ring that lock ring hangs up starts to engage with the lock ring tooth of lock ring cover inside, and after packing element has compressed, the lock ring tooth lock of lock ring and lock ring cover inside is dead, now put pressure, packing element is also in compression seal state, and release completes, and sets successfully.
Two, envelope is separated
Again during operation, employing is transferred, upper lifting pipe post makes it separate envelope, concrete grammar:
At well head of dismantling, after deriving oil pipe extension, deepening to transfer tubing string, under gravity, in the descending promotion of top connection, suspension cover and lower suspension cover are descending, enter in long slideway in the short slideway of slideway pin in upper center tube. Then upper lifting pipe post, while two slideway pins are gone on long slideway, two other slideway pin drives row in two hook arm on the solution envelope hook cylinder assigned under upper center tube in the hook arm groove of outside, cut off main solution and seal pin, separate envelope hook cylinder reconciliation big envelope and also above go simultaneously, when upward stroke puts in place, lock ring reports the loss the support understanding big envelope, the lock ring tooth of the lock ring that lock ring hangs up and lock ring cover inside disengages under the effect of packing element tension, makes packing element recover original state, thus realizes separating envelope. Now, anti-back lock ring and the lower lock ring tooth hanging cover inner side are locked dead, prevent lower suspension from recovering position; The outer step that interior step on protection cylinder puts with lower suspension contacts, and slideway pin undertakes the suspending weight of below this instrument simultaneously.
Separate (for subsequent use), energetically upper lifting pipe post envelope lost efficacy when upper carrying, under the effect of packing element and sleeve friction power, promote lower rubber cylinder seat descending, thus it is descending to make lock ring cover drive lock ring to hang, cut off and secondary separate envelope pin, it is achieved separate and seal.
Three, well-flushing
In normal the injecting process, when needing well-flushing, first stop water filling and carry out reacting cycle well-flushing, when oil sets annular space pressure is greater than tubing string internal pressure, well-flushing upstroke opens the inlet opening on piston bore, by many well-flushing passages in solution big envelope and the fluid hole on bushing pipe, then by the ball-and-seat of tubing string bottom, it is achieved reacting cycle well-flushing.
In multistage tubular column of water well or oil well pipe, well-flushing principle is the same.
The present invention adopts fixing pin to hang, utilize slideway solution to seal, and separates envelope pulling force low, when separating the multiple pkr of envelope, adopt the mode of gradually deblocking, thoroughly solve pkr to need to cut off pin when separating envelope, separate envelope pulling force big, be not easy to untie the problem of multiple pkr.
Claims (3)
1. a chute type gradually deblocking packer, comprises top connection (1), gate ring (2), lock block (3), gland pin (4), lock block gland (5), upper suspension cover (6), anti-back lock ring (7), upper center tube (8), lower suspension cover (9), slideway pin (10), protection cylinder (11), pipe core (12), seal cartridge (13), main solution envelope pin (14), well-flushing piston (15), separate envelope hook cylinder (16), piston bore (17), fixing pin (18), upper glue tube base (19), bushing pipe (20), middle packing element (21), spacer ring (22), limit packing element (23), lower rubber cylinder seat (24), secondary solution seals pin (25), lock ring hangs (26), separate big envelope (27), lock ring (28), lock ring cover (29), set pin (30), set cylinder cylinder (31), set piston (32) and lower sub (33), the bottom of described top connection (1) and upper center tube (8) are dead by lock block (3) lock, upper center tube (8) locks block (3) place in correspondence pressure transmission hole, lock block gland (5) is connected with lock block (3) pressured cover pin (4), compact lock block (3) simultaneously, top connection (1) outside is hung with and hangs cover (6), and gate ring (2) is equipped with at upper suspension cover (6) top, and screwed connection is passed through in upper suspension cover (6) and lower suspension cover (9), there is groove in the outside of described upper center tube (8), and groove, built with anti-back lock ring (7), the lower inwall hanging cover (9) has lock ring tooth, and anti-back lock ring (7) and lock ring tooth can be engaged, and lower suspension cover (9) bottom is fixing is equipped with slideway pin (10), described upper center tube (8) bottom and pipe core (12) pass through screwed connection, there is upper and lower pressure transmission hole pipe core (12) side, pipe core (12) outside is for separating envelope hook cylinder (16), separate envelope hook cylinder (16) top and separate, by main, the upper pressure transmission hole place that envelope pin (14) is fixed on pipe core (12), separate the bottom of envelope hook cylinder (16) by screwed connection solution big envelope (27), separate and have many well-flushing passages in the middle of big envelope (27) sidewall, outside step is arranged at the described lower bottom hanging cover (9), lower suspension cover (9) outside is protection cylinder (11), inside step is arranged at protection cylinder (11) top, it is engaged mutually with the lower step hanging cover (9) bottom outside, bottom and the seal cartridge (13) of protection cylinder (11) pass through screwed connection, screwed connection is passed through with piston bore (17) again in seal cartridge (13) outside, piston bore has inlet opening on (17), between piston bore (17) and solution envelope hook cylinder (16), well-flushing piston (15) is housed, screwed connection is passed through with upper glue tube base (19) again in piston bore (17) bottom, upper glue tube base (19) is fixed on pipe core (12) by fixing pin (18) by the well-flushing passage separated on big envelope (27) again, and separate big envelope (27) can be freely up and down movable, the outside of described solution big envelope (27) is bushing pipe (20), fluid hole is arranged at the bottom of bushing pipe (20), top and the upper glue tube base (19) of bushing pipe (20) pass through screwed connection, the bottom of bushing pipe (20) is hung (26) and is connected by secondary envelope pin (25) of separating with lock ring, lock ring is hung has lock ring (28) on (26), lock ring hangs (26) inner side, and by separating, big envelope (27) supports, bushing pipe (20) outer sheath has two limit packing elements (23), two spacer rings (22) and a middle packing element (21), bushing pipe (20) bottom is lower rubber cylinder seat (24), lower rubber cylinder seat (24) passes through screwed connection with lock ring cover (29) again, lock ring cover (29) inwall there is lock ring tooth, lock ring (28) can be engaged mutually with lock ring tooth,Screwed connection is passed through on bottom and lower sub (33) top of described pipe core (12), cylinder cylinder (31) passes through screwed connection to the upper outside of lower sub (33) with setting, set to be provided with in cylinder cylinder (31) and set piston (32), set the outside that piston (32) is positioned under pipe core (12) pressure transmission hole, set piston (32) top and bottom with lock ring cover (29) pass through screwed connection again, set pin (30) to be arranged on lock ring cover (29) and set between cylinder cylinder (31), it is characterized in that: the bottom outer wall of described upper center tube (8) has long slideway (34), short slideway (35) and hook arm groove (36), short slideway (35) is obliquely installed and is connected into V-type with long slideway (34), hook arm groove (36) is arranged at long slideway (34) side and top with long slideway (34) communicates, hook arm (37) is arranged at the top separating envelope hook cylinder (16), hook arm (37) top assigns in hook arm groove (36), slideway pin (10) end is placed in the short slideway (35) of long slideway (34) and short slideway (35), and can slide in long slideway (34) and short slideway (35), and slideway pin (10) can drive hook arm (37) to slide together in long slideway (34).
2. chute type gradually deblocking packer according to claim 1, it is characterised in that: described long slideway (34) and short slideway (35) are many groups, respectively along the evenly arrangement of upper center tube (8) outer wall circumference.
3. chute type gradually deblocking packer according to claim 2, it is characterized in that: described long slideway (34) and short slideway (35) are four groups, wherein long slideway (34) side is provided with hook arm groove (36) in two groups, and hook arm groove (36) communicates with the top of long slideway (34).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610142233.4A CN105625979B (en) | 2016-03-14 | 2016-03-14 | Chute type gradually deblocking packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610142233.4A CN105625979B (en) | 2016-03-14 | 2016-03-14 | Chute type gradually deblocking packer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105625979A true CN105625979A (en) | 2016-06-01 |
| CN105625979B CN105625979B (en) | 2017-11-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610142233.4A Active CN105625979B (en) | 2016-03-14 | 2016-03-14 | Chute type gradually deblocking packer |
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| Country | Link |
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| CN (1) | CN105625979B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111058793A (en) * | 2018-10-16 | 2020-04-24 | 中国石油化工股份有限公司 | Gradual unsealing device |
| CN111271020A (en) * | 2020-03-23 | 2020-06-12 | 牡丹江市井田石油钻采配件有限公司 | Rotary type step-by-step deblocking packer |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4593937A (en) * | 1983-09-15 | 1986-06-10 | Societe Nationale Elf Aquitaine | Device for connecting and disconnecting a tubular pipe movable inside a fixed tubular pipe |
| CN2046540U (en) * | 1989-04-26 | 1989-10-25 | 中原石油勘探局采油工艺研究所 | Detachable pressure crack bridge plug |
| CN203230376U (en) * | 2013-01-30 | 2013-10-09 | 中国石油天然气股份有限公司 | Compression type set packer for multi-times of setting and unsetting |
| CN204782919U (en) * | 2015-07-17 | 2015-11-18 | 牡丹江市井田石油钻采配件有限公司 | Slide formula bridging plug of giving up |
| CN205422622U (en) * | 2016-03-14 | 2016-08-03 | 牡丹江市井田石油钻采配件有限公司 | Slide formula is deblocking packer step by step |
-
2016
- 2016-03-14 CN CN201610142233.4A patent/CN105625979B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4593937A (en) * | 1983-09-15 | 1986-06-10 | Societe Nationale Elf Aquitaine | Device for connecting and disconnecting a tubular pipe movable inside a fixed tubular pipe |
| CN2046540U (en) * | 1989-04-26 | 1989-10-25 | 中原石油勘探局采油工艺研究所 | Detachable pressure crack bridge plug |
| CN203230376U (en) * | 2013-01-30 | 2013-10-09 | 中国石油天然气股份有限公司 | Compression type set packer for multi-times of setting and unsetting |
| CN204782919U (en) * | 2015-07-17 | 2015-11-18 | 牡丹江市井田石油钻采配件有限公司 | Slide formula bridging plug of giving up |
| CN205422622U (en) * | 2016-03-14 | 2016-08-03 | 牡丹江市井田石油钻采配件有限公司 | Slide formula is deblocking packer step by step |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111058793A (en) * | 2018-10-16 | 2020-04-24 | 中国石油化工股份有限公司 | Gradual unsealing device |
| CN111271020A (en) * | 2020-03-23 | 2020-06-12 | 牡丹江市井田石油钻采配件有限公司 | Rotary type step-by-step deblocking packer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105625979B (en) | 2017-11-17 |
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