CN105625979B - Chute type gradually deblocking packer - Google Patents
Chute type gradually deblocking packer Download PDFInfo
- Publication number
- CN105625979B CN105625979B CN201610142233.4A CN201610142233A CN105625979B CN 105625979 B CN105625979 B CN 105625979B CN 201610142233 A CN201610142233 A CN 201610142233A CN 105625979 B CN105625979 B CN 105625979B
- Authority
- CN
- China
- Prior art keywords
- slideway
- lock ring
- pin
- cylinder
- deblocking
- 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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- 239000000725 suspension Substances 0.000 claims abstract description 40
- 238000011010 flushing procedure Methods 0.000 claims description 21
- 238000012856 packing Methods 0.000 claims description 21
- 230000005540 biological transmission Effects 0.000 claims description 14
- 239000003292 glue Substances 0.000 claims description 14
- 210000004907 gland Anatomy 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 10
- 125000006850 spacer group Chemical group 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 4
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 206010016825 Flushing Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003129 oil well 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
- 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 present invention relates to a kind of chute type gradually deblocking packer, long slideway, short slideway and hook arm groove are provided with the bottom outer wall of upper center tube, short slideway is obliquely installed and connects into V-type with long slideway, hook arm groove is arranged at long slideway side and communicated with the top of long slideway, hook arm is arranged at the top of deblocking hook cylinder, assigned at the top of hook arm in hook arm groove, slideway dowel ends are placed in the short slideway in long slideway and short slideway, and can be slided in long slideway and short slideway, and slideway pin can drive hook arm to slide together in long slideway.The present invention is unsealed using fixing pin suspension, using slideway, and deblocking pulling force is low, when unsealing multiple packers, by the way of gradually deblocking, thoroughly solve packer needs to cut pin when deblocking, and deblocking pulling force is big, the problem of being not easy to untie multiple packers.
Description
Technical field
The invention belongs to oil field well field of tool, is related to a kind of chute type gradually deblocking packer.
Background technology
In oilfield production, packer is conventional downhole tool, existing packer generally use when deblocking
The mode of pin is cut, but the pulling force for cutting pin needs is larger, when especially multiple packers are used in series, directly uses
Upper lifting pipe post, it is extremely difficult disposably to unseal multiple packers using the pulling force above carried, often result in deblocking failure.Therefore, need
Further to existing packer to be improved.
The content of the invention
It is an object of the invention to provide a kind of chute type gradually deblocking packer, solves current packer when deblocking
Need to cut pin, deblocking pulling force is big, the problem of being not easy to untie multiple packers.
The present invention is achieved through the following technical solutions：A kind of chute type gradually deblocking packer, including top connection, control
Ring, closing piece, gland pin, closing piece gland, upper suspension set, anti-back lock ring, upper center tube, lower suspension set, slideway pin, protection
Cylinder, central tube, sealing shroud, principal solution offset nail, well-flushing piston, deblocking hook cylinder, piston bore, fixing pin, upper glue tube base, lining
Pipe, middle packing element, spacer ring, side packing element, lower rubber cylinder seat, secondary deblocking pin, lock ring are hung, solution big envelope, lock ring, lock ring set, set pin,
Set cylinder barrel, set piston and lower contact, the bottom of described top connection is locked by closing piece with upper center tube, and upper center tube is right
Answering has pressure transmission hole at closing piece, closing piece gland is connected with the pressured set pin of closing piece, while compresses closing piece, is hung with outside top connection
Suspension set, upper suspension set top are equipped with control ring, and upper suspension set and lower suspension set pass through screwed connection；Described upper center tube
There is groove in outside, has lock ring tooth on the inwall that groove covers built with anti-back lock ring, lower suspension, anti-back lock ring and lock ring tooth can be stung mutually
Close, lower suspension set bottom, which is fixed, is equipped with slideway pin；Described upper center tube bottom and central tube passes through screwed connection, central tube
There is upper and lower pressure transmission hole side, is deblocking hook cylinder on the outside of central tube, and deblocking hook cylinder top is fixed on central tube by principal solution offset nail
At upper pressure transmission hole, the bottom of hook cylinder is unsealed by screwed connection solution big envelope, solves and is provided with a plurality of well-flushing passage among big envelope side wall；Institute
Outside step is arranged at the bottom for the lower suspension set stated, and outside lower suspension set is protection cylinder, has inside step at the top of protection cylinder, with
The outside step in lower suspension set bottom is mutually engaged, and protects the bottom of cylinder and sealing shroud by screwed connection, on the outside of sealing shroud again with
Piston bore has inlet opening, well-flushing piston be housed between piston bore and deblocking hook cylinder, work by screwed connection on piston bore
Plug cylinder cylinder bottom is led to by screwed connection, upper glue tube base with upper glue tube base further through fixing pin by unsealing the well-flushing put again
Road is fixed on central tube, and solution big envelope can be freely up and down movable；The outside of described solution big envelope is bushing pipe, the bottom of bushing pipe
There is fluid hole, with upper glue tube base by screwed connection, bottom and the lock ring of bushing pipe are hung to be connected by secondary deblocking pin on the top of bushing pipe
Connect, lock ring has hung up lock ring, and lock ring hangs inner side and is cased with two side packing elements, two spacer rings and one by solution big envelope support, bushing pipe outside
Individual middle packing element, bushing pipe bottom are lower rubber cylinder seat, and lower rubber cylinder seat passes through screwed connection with lock ring set, has lock ring on lock ring set inwall again
Tooth, lock ring can be mutually twisted with lock ring tooth；The bottom of described central tube passes through screwed connection, lower contact with lower contact top
Upper outside and set cylinder barrel by screwed connection, set to be provided with cylinder barrel and set piston, set piston and be located under central tube
The outside of pressure transmission hole, set bottom of the upper piston area again with lock ring set by screwed connection, set pin installed in lock ring set and
Set between cylinder barrel；Long slideway, short slideway and hook arm groove are provided with the bottom outer wall of described upper center tube, short slideway is tilted and set
Put and V-type is connected into long slideway, hook arm groove is arranged at long slideway side and communicated with the top of long slideway, unseals the upper of hook cylinder
Portion is equipped with hook arm, is assigned at the top of hook arm in hook arm groove, and slideway dowel ends are placed in the short slideway in long slideway and short slideway,
And can be slided 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 multigroup uniformly to be arranged respectively along upper center tube outer wall is circumferential.
Further, described long slideway and short slideway are four groups, wherein long slideway side is provided with hook arm groove, hook in two groups
Arm groove communicates with the top of long slideway.
Using the good effect of above-mentioned technical proposal：The present invention is unsealed using fixing pin suspension, using slideway, and deblocking is drawn
Power is low, and when unsealing multiple packers, by the way of gradually deblocking, thoroughly solve packer needs to cut when deblocking
Disconnected pin, deblocking pulling force is big, the problem of being not easy to untie multiple packers.
Brief description of the drawings
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 of upper center tube and deblocking hook cylinder.
In figure, 1 top connection, 2 control rings, 3 closing pieces, 4 gland pins, 5 closing piece glands hang set on 6,7 anti-back lock rings, and 8
Upper center tube, 9 times suspension sets, 10 slideway pins, 11 protection cylinders, 12 central tubes, 13 sealing shrouds, 14 principal solution offsets nail, 15 well-flushings
Piston, 16 deblocking hook cylinders, 17 piston bores, 18 fixing pins, glue tube base on 19,20 bushing pipes, packing element in 21,22 spacer rings, 23 sides
Packing element, 24 lower rubber cylinder seats, 25 secondary deblocking pins, 26 lock rings are hung, 27 solution big envelopes, 28 lock rings, 29 lock ring sets, and 30 set pin, and 31
Cylinder barrel is set, 32 set piston, 33 lower contacts, 34 long slideways, 35 short slideways, 36 hook arm grooves, 37 hook arm.
Embodiment
Technical scheme is described further below in conjunction with the accompanying drawings, but should not be construed as the limit to the present invention
System：
Fig. 1 is the structural representation one of the present invention, and Fig. 2 is the structural representation two of the present invention, and Fig. 3 is that upper center tube is conciliate
Seal the outer wall tiling schematic diagram of hook cylinder, as illustrated, a kind of chute type gradually deblocking packer, including top connection 1, control ring 2,
Closing piece 3, gland pin 4, closing piece gland 5, it is upper suspension set 6, anti-back lock ring 7, upper center tube 8, it is lower suspension set 9, slideway pin 10,
Cylinder 11, central tube 12, sealing shroud 13, principal solution offset is protected to follow closely 14, well-flushing piston 15, unseal hook cylinder 16, piston bore 17, fix
Pin 18, upper glue tube base 19, bushing pipe 20, middle packing element 21, spacer ring 22, side packing element 23, lower rubber cylinder seat 24, secondary deblocking pin 25, lock
Ring hangs 26, solution big envelope 27, lock ring 28, lock ring and covers 29, set pin 30, set cylinder barrel 31, setting piston 32 and lower contact 33, institute
The bottom for the top connection 1 stated is locked by closing piece 3 with upper center tube 8, and upper center tube 8 has pressure transmission hole, closing piece pressure at corresponding closing piece 3
Set 5 is connected with the pressured set pin 4 of closing piece 3, while compresses closing piece 3, and suspension set 6, upper suspension set 6 are hung with outside top connection 1
Top is equipped with control ring 2, and upper suspension set 6 and lower suspension set 9 pass through screwed connection；There are groove, groove in the outside of described upper center tube 8
Built with anti-back lock ring 7, there is lock ring tooth on the inwall of lower suspension set 9, anti-back lock ring 7 and lock ring tooth can be engaged, lower outstanding
The bottom of hanging sleeve 9 is fixed and slideway pin 10 is housed.The described bottom of upper center tube 8 and central tube 12 passes through screwed connection, central tube
There is upper and lower pressure transmission hole 12 sides, and the outside of central tube 12 is deblocking hook cylinder 16, and the top of deblocking hook cylinder 16 is fixed by principal solution offset nail 14
At the upper pressure transmission hole of central tube 12, the bottom of deblocking hook cylinder 16 is solved among the side wall of big envelope 27 by screwed connection solution big envelope 27
It is provided with a plurality of well-flushing passage.Outside step is arranged at the bottom of described lower suspension set 9, and the lower outside of suspension set 9 is protection cylinder 11, is protected
Inside step is arranged at the top of casing 11, and the step outside with lower 9 bottoms of suspension set is mutually engaged, and protects bottom and the sealing shroud of cylinder 11
13 by screwed connection, and there is inlet opening in the outside of sealing shroud 13 again with piston bore 17 by screwed connection on piston bore 17, living
Well-flushing piston 15 is housed between plug cylinder cylinder 17 and deblocking hook cylinder 16, the bottom of piston bore 17 is connected with upper glue tube base 19 by screw thread again
Connect, upper glue tube base 19 is fixed on central tube 12 further through fixing pin 18 by solving the well-flushing passage on big envelope 27, and is unsealed
Set 27 can be freely up and down movable.The outside of described solution big envelope 27 is bushing pipe 20, and fluid hole, bushing pipe 20 are arranged at the bottom of bushing pipe 20
Top and upper glue tube base 19 hang 26 by screwed connection, bottom and the lock ring of bushing pipe 20 and be connected by pair deblocking pin 25, lock
Ring, which is hung on 26, a lock ring 28, and lock ring is hung 26 inner sides and supported by solution big envelope 27, be cased with the outside of bushing pipe 20 two side packing elements 23, two every
Ring 22 and a middle packing element 21, the bottom of bushing pipe 20 are lower rubber cylinder seat 24, lower rubber cylinder seat 24 again with lock ring set 29 by screwed connection,
Lock ring, which is covered on 29 inwalls, lock ring tooth, and lock ring 28 can be mutually twisted with lock ring tooth.The bottom of described central tube 12 connects with
First 33 top is set in cylinder barrel 31 by screwed connection, the upper outside of lower contact 33 with setting cylinder barrel 31 by screwed connection
Provided with piston 32 is set, set the outside that piston 32 is located at 12 times pressure transmission holes of central tube, set the top of piston 32 again with lock ring set
29 bottom is set pin 30 installed in lock ring set 29 and set between cylinder barrel 31 by screwed connection.Described upper center tube 8
Bottom outer wall on be provided with long slideway 34, short slideway 35 and hook arm groove 36, short slideway 35 is obliquely installed and connected with long slideway 34
Into V-type, hook arm groove 36 is arranged at the long side of slideway 34 and communicated with the top of long slideway 34, and hook arm is arranged at the top of deblocking hook cylinder 16
37, the top of hook arm 37 is assigned into hook arm groove 36, the short slideway that the end of slideway pin 10 is placed in long slideway 34 and short slideway 35
In 35, and it can be slided in long slideway 34 and short slideway 35, and slideway pin 10 can drive hook arm 37 in long slideway 34
Slide together.Therefore, while using slideway pin upward sliding, drive hook arm up together, and then drive on deblocking hook cylinder
OK.
Further, in order that the used time is more convenient, described long slideway 34 and short slideway 35 are multigroup, respectively along upper
The circumferential uniformly arrangement of the outer wall of central tube 8.Specifically, described long slideway 34 and short slideway 35 are four groups, wherein long in two groups slide
The side of road 34 is provided with hook arm groove 36, and hook arm groove 36 communicates with the top of long slideway 34.
The operation principle of chute type gradually deblocking packer：
First, set
Chute type gradually deblocking packer is connected to oil, the appropriate location of well completion tubular column, is gone into the well with tubing string, and positioning is closed
Discharged after lattice, under the effect of the pressure, upper and lower inlet opening while feed liquor in the pressure transmission hole and central tube in upper center tube, on
Pressure transmission hole feed liquor in central tube promotes closing piece gland to cut gland pin, and closing piece gland is descending, and closing piece disengages upper center tube, makes
Top connection unties locking state with upper center tube, and now the suspending weight below packer is all acted on slideway pin（Go into the well process
In act on closing piece）；
Upper inlet opening feed liquor in central tube promotes well-flushing descent of piston, closes the inlet opening of well-flushing passage；
Lower inlet opening feed liquor in central tube, which promotes, sets piston stroking upward, sets the up cutting of piston driving lock ring set and sets
Pin, continue up, promotion lower rubber cylinder seat two side packing elements of compression and a middle packing element, when compression is away from certain value is reached, lock
The lock ring that ring is hung up starts to engage with the lock ring tooth inside lock ring set, after the completion of packing element compression, inside lock ring and lock ring set
Lock ring tooth is locked, now bleeds off pressure, and packing element is also at compression seal state, and release is completed, and sets success.
2nd, unseal
Again during operation, its deblocking, specific method are made using decentralization, upper lifting pipe post：
In well head of dismantling, after exporting tubing hanger, deepen decentralization tubing string, under gravity, in the descending promotion of top connection
Suspension set and lower suspension set are descending, and slideway pin enters in long slideway in the short slideway in upper center tube.Then upper lifting pipe post,
For two slideway pins while long slideway is up, two other slideway pin, which drives, assigns into outside hook arm groove under upper center tube
Two hook arm on interior deblocking hook cylinder are up, cut principal solution offset nail, deblocking hook cylinder reconciliation big envelope is also simultaneously up, up
During Overstroke, lock ring reports the loss the support for understanding big envelope, and the lock ring that lock ring is hung up is with the lock ring tooth inside lock ring set in packing element
Disengaged in the presence of tension, packing element is restored to the original state, so as to realize deblocking.Now, anti-back lock ring and the lock of lower suspension set inner side
Ring tooth is locked, prevents lower suspension set return；Interior step on protection cylinder contacts with the lower outer step put that hangs, and slideway pin
The suspending weight below the instrument is undertaken simultaneously.
It is upper carry deblocking failure in the case of（It is standby）, upper lifting pipe post energetically, in the presence of packing element and sleeve friction power,
Promote lower rubber cylinder seat descending, so that lock ring set drives lock ring extension descending, cut secondary deblocking pin, realize and unseal.
3rd, well-flushing
In normal the injecting process, it is necessary to during well-flushing, first stop water filling and carry out reacting cycle well-flushing, in oil sets annular space pressure
When power is more than tubing string internal pressure, well-flushing piston stroking upward opens the inlet opening on piston bore, a plurality of is washed by solve in big envelope
Fluid hole on well passage and bushing pipe, then the ball-and-seat by tubing string bottom, realize reacting cycle well-flushing.
In multistage tubular column of water well or oil well pipe, well-flushing principle is the same.
The present invention is unsealed using fixing pin suspension, using slideway, and deblocking pulling force is low, when unsealing multiple packers, adopts
With the mode of gradually deblocking, thoroughly solve packer needs to cut pin when deblocking, and deblocking pulling force is big, is not easy to solve
The problem of driving multiple packers.
Claims (3)
1. a kind of chute type gradually deblocking packer, including top connection（1）, control ring（2）, closing piece（3）, gland pin（4）, lock
Block gland（5）, it is upper suspension set（6）, anti-back lock ring（7）, upper center tube（8）, it is lower suspension set（9）, slideway pin（10）, protection cylinder
（11）, central tube（12）, sealing shroud（13）, principal solution offset nail（14）, well-flushing piston（15）, deblocking hook cylinder（16）, piston bore
（17）, fixing pin（18）, upper glue tube base（19）, bushing pipe（20）, middle packing element（21）, spacer ring（22）, side packing element（23）, lower rubber cylinder
Seat（24）, secondary deblocking pin（25）, lock ring hang（26）, solution big envelope（27）, lock ring（28）, lock ring set（29）, set pin（30）、
Set cylinder barrel（31）, set piston（32）And lower contact（33）, described top connection（1）Bottom and upper center tube（8）By lock
Block（3）It is locked, upper center tube（8）In corresponding closing piece（3）There are pressure transmission hole, closing piece gland in place（5）With closing piece（3）Pressured set pin
（4）Connection, while compress closing piece（3）, top connection（1）Outside is hung with suspension set（6）, upper suspension set（6）Top is equipped with control
Ring processed（2）, upper suspension set（6）With lower suspension set（9）Pass through screwed connection；Described upper center tube（8）Outside have a groove, in groove
Equipped with anti-back lock ring（7）, lower suspension set（9）Inwall on have lock ring tooth, anti-back lock ring（7）Can be engaged with lock ring tooth,
Lower suspension set（9）Bottom is fixed and slideway pin is housed（10）；Described upper center tube（8）Bottom and central tube（12）Pass through screw thread
Connection, central tube（12）There are upper and lower pressure transmission hole, central tube in side（12）Outside is deblocking hook cylinder（16）, unseal hook cylinder（16）On
Followed closely by principal solution offset in portion（14）It is fixed on central tube（12）Upper pressure transmission hole at, unseal hook cylinder（16）Bottom pass through screwed connection
Solve big envelope（27）, solve big envelope（27）A plurality of well-flushing passage is provided among side wall；Described lower suspension set（9）Bottom have it is outside
Step, lower suspension set（9）Outside is protection cylinder（11）, protect cylinder（11）Inside step is arranged at top, is covered with lower suspension（9）Bottom
Outside step is mutually engaged, and protects cylinder（11）Bottom and sealing shroud（13）Pass through screwed connection, sealing shroud（13）Outside again with
Piston bore（17）Pass through screwed connection, piston bore（17）On have inlet opening, piston bore（17）With unsealing hook cylinder（16）It
Between well-flushing piston is housed（15）, piston bore（17）Bottom again with upper glue tube base（19）By screwed connection, upper glue tube base（19）
Further through fixing pin（18）By solving big envelope（27）On well-flushing passage be fixed on central tube（12）On, and solve big envelope（27）Energy
It is enough freely up and down movable；Described solution big envelope（27）Outside be bushing pipe（20）, bushing pipe（20）Bottom have fluid hole, bushing pipe
（20）Top and upper glue tube base（19）Pass through screwed connection, bushing pipe（20）Bottom and lock ring hang（26）Pin is unsealed by pair
（25）Connection, lock ring are hung（26）On have lock ring（28）, lock ring extension（26）Inner side is by solving big envelope（27）Support, bushing pipe（20）Outer sheath
There are two side packing elements（23）, two spacer rings（22）With a middle packing element（21）, bushing pipe（20）Bottom is lower rubber cylinder seat（24）, lower glue
Cylinder base（24）And with lock ring set（29）Pass through screwed connection, lock ring set（29）There are lock ring tooth, lock ring on inwall（28）Can and it lock
Ring tooth is mutually twisted；Described central tube（12）Bottom and lower contact（33）Top passes through screwed connection, lower contact（33）'s
Upper outside is with setting cylinder barrel（31）By screwed connection, cylinder barrel is set（31）Interior be provided with sets piston（32）, set piston
（32）Positioned at central tube（12）The outside of lower pressure transmission hole, sets piston（32）Top again with lock ring set（29）Bottom pass through screw thread
Connection, sets pin（30）Installed in lock ring set（29）With set cylinder barrel（31）Between, it is characterised in that：Described upper center tube
（8）Bottom outer wall on be provided with long slideway（34）, short slideway（35）With hook arm groove（36）, short slideway（35）It is obliquely installed and and long
Slideway（34）Connect into V-type, hook arm groove（36）It is arranged at long slideway（34）Side and with long slideway（34）Top communicate, unseal
Hook cylinder（16）Top have hook arm（37）, hook arm（37）Top assigns into hook arm groove（36）It is interior, slideway pin（10）End is placed in
Long slideway（34）With short slideway（35）In short slideway（35）It is interior, and can be in long slideway（34）With short slideway（35）Interior slip,
And slideway pin（10）In long slideway（34）It is interior to drive hook arm（37）Slide together.
2. chute type gradually deblocking packer according to claim 1, it is characterised in that：Described long slideway（34）With it is short
Slideway（35）To be multigroup, respectively along upper center tube（8）The circumferential uniformly arrangement of outer wall.
3. chute type gradually deblocking packer according to claim 2, it is characterised in that：Described long slideway（34）With it is short
Slideway（35）For four groups, wherein long slideway in two groups（34）Side is provided with hook arm groove（36）, hook arm groove（36）With long slideway（34）
Top communicate.
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 CN105625979A (en) | 2016-06-01 |
| CN105625979B true CN105625979B (en) | 2017-11-17 |
Family
ID=56041270
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 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105625979B (en) |
Families Citing this family (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 |
| CN111271020B (en) * | 2020-03-23 | 2024-06-14 | 牡丹江市井田石油钻采配件有限公司 | Rotary step-by-step deblocking packer |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2552201B1 (en) * | 1983-09-15 | 1985-11-15 | Elf Aquitaine | DEVICE FOR CONNECTING AND DISCONNECTING A MOBILE TUBULAR CONDUIT WITHIN A FIXED TUBULAR CONDUIT |
| 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
Also Published As
| Publication number | Publication date |
|---|---|
| CN105625979A (en) | 2016-06-01 |
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