CN108625815A - A kind of fill-type external packer of pipe - Google Patents
A kind of fill-type external packer of pipe Download PDFInfo
- Publication number
- CN108625815A CN108625815A CN201710176794.0A CN201710176794A CN108625815A CN 108625815 A CN108625815 A CN 108625815A CN 201710176794 A CN201710176794 A CN 201710176794A CN 108625815 A CN108625815 A CN 108625815A
- Authority
- CN
- China
- Prior art keywords
- packing element
- sleeve
- sliding sleeve
- top connection
- packer
- 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
- 238000012856 packing Methods 0.000 claims abstract description 34
- 125000004122 cyclic group Chemical group 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 6
- 238000010276 construction Methods 0.000 abstract description 3
- 239000004568 cement Substances 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000010009 beating Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000087 stabilizing effect 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
- E21B33/126—Packers; Plugs with fluid-pressure-operated elastic cup or skirt
-
- 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
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)
- Pipe Accessories (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The present invention relates to a kind of fill-type external packer of pipe in completion tool field.The opening and closing in the swollen envelope channel of packer are controlled using sliding sleeve, and the closing in the swollen envelope channel of packer uses self closing pattern, when the pressure in packing element reaches design value, packer is swollen, and envelope channel is automatically closed, the pressure value in packing element no longer changes with overpressure at this time, keep constant that value is constant, realize the permanent envelope of packing element upper and lower part every.The configuration of the present invention is simple, easy to process and assembly, construction risk is small, can be used for pocket in screen casing crest water flooding mud operation and seals up portion's cementing concrete, prevents cement from leaking into lower screen section polluted reservoir.
Description
Technical field
It is especially a kind of using shift sleeve structure the present invention relates to a kind of fill-type external packer of pipe in completion tool field
Fill-type external packer of pipe.
Background technology
Screen casing crest water flooding mud well-completing process is one of main well-completing process of current horizontal well, and wherein external packer of pipe is real
Now a set of key tool of the technology, for realizing the permanent envelope of top well cementation section and lower screen section every preventing from cementing the well
Cement leaks into lower screen section polluted reservoir.External packer of pipe currently used for scene is mainly the fill-type using valve architecture
External packer of pipe.The type external packer of pipe is equipped with three lock valve, check valve and pressure limiting valve valve systems, feed liquor of the liquid through valve system
Hole enters lock valve, and the pin when pressure reaches setting value on lock valve is cut, and lock valve is opened, and liquid flows through unidirectionally
Valve, pressure limiting valve enter in the expansion chamber between central tube and packing element, make packer inflation, when the pressure in expansion chamber reaches pressure limiting valve
When the setting value of pin, pin is cut, and pressure limiting valve events close inlet opening, and it is zero that well head, which is bled off pressure, lock valve auto lock,
Realize permanent closing, later down-hole pressure operation is on packer without influence.The type packer has the following disadvantages：（1）By
Small in three valve architecture perforation sizes, so processing and manufacturing difficulty is big, assembly is complicated；（2）The type packer is in swollen envelope process
In once encounter emergency case pressure release, swollen envelope can not be suppressed again again, great risk is brought to site operation；（3）Three valve systems
The obturator that structure is related to is more, and size is small, sealing effect it is difficult to ensure that, often occur being unable to voltage stabilizing during envelope that packer is swollen
There is leakage phenomenon after the completion of situation or swollen envelope, influences to insulate effect.
Invention content
Outside in response to the problems existing in the prior art, the purpose of the present invention is to provide a kind of fill-type pipe using shift sleeve structure
Packer, the external packer of pipe is simple in structure, assembly easy to process, and burst pressure release situation is met during swollen envelope, can continue to suppress
Swollen envelope, until swollen envelope is complete, construction safety, and internal seal structure stability is good, not easy to leak, it is ensured that external packer of pipe glue
The permanent expansion of cylinder realizes the long-acting packing of packing element top and the bottom.
The technical solution adopted by the present invention to solve the technical problems is：
A kind of fill-type external packer of pipe, including top connection, lower contact and the sliding sleeve being connected between lower contact, central tube,
Packing element, wherein：It is equipped with cyclic annular dovetail groove outside the top connection, is arranged in dovetail groove and opens sliding sleeve and closedown sliding sleeve, wherein beating
It opens sliding sleeve to be fixedly connected by opening shear pin with the dovetail groove madial wall of top connection, on the outside of the dovetail groove of closedown sliding sleeve and top connection
Wall is fixedly connected by closing shear pin, is opened and is constituted axial limiting sealing cooperation between sliding sleeve and closedown sliding sleeve；The ring of top connection
Shape dovetail groove inner wall is equipped with radial inlet opening, and inlet opening is arranged in the top for opening sliding sleeve；The connection of top connection lower part is intermediate to be connected
Female connector, intermediate connecting sleeve upper end are tightly connected with top connection, and flow-guiding channel, intermediate connecting sleeve lower section is axially arranged in intermediate connecting sleeve
Internal layer is tightly connected by central tube and lower contact internal layer, below intermediate connecting sleeve outer layer pass sequentially through upper joint sleeve, packing element, under
Connector sleeve is sealed with lower contact outer layer, and closed chamber, the closed chamber are equipped between central tube and upper joint sleeve, packing element, lower joint sleeve
It is connected to the flow-guiding channel that intermediate connecting sleeve is axially arranged.
Said program further comprises：
The cyclic annular dovetail groove of the top connection is made of top connection and outer barrel sealed connection.
Upper joint sleeve inner wall is connect with packing element top connection with the upper end for merging sealed holding packing element, lower joint sleeve inner wall and glue
Cylinder lower contact connection is with the lower end for merging sealed holding packing element.
The present invention has following advantageous effect：（1）It is simple in structure, assembly easy to process；（2）Burst pressure release is met during swollen envelope
Situation can continue to suppress swollen envelope, until swollen envelope is complete, construction safety；（3）Internal seal structure stability is good, not easy to leak, can
Ensure the permanent expansion of external packer of pipe packing element, realizes the long-acting packing of packing element top and the bottom.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of fill-type external packer of pipe of the present invention.
1. top connection in figure, 2. outer barrels, 3. closing shear pins, 4. closedown sliding sleeves, 5. inlet openings, 6. opening sliding sleeves, 7.
Open shear pin, 8. intermediate connecting sleeves, 9. upper joint sleeves, 10. packing element top connections, 11. packing elements, 12. central tubes, 13. glue
Cylinder lower contact, 14. lower joint sleeves, 15. lower contacts.
Specific implementation mode
The present invention is further illustrated with reference to the accompanying drawings of the specification：
A kind of fill-type external packer of pipe described in the present embodiment is as shown in Fig. 1, by top connection 1, outer barrel 2, close shear pin 3,
Closedown sliding sleeve 4, inlet opening 5 open sliding sleeve 6, open shear pin 7, intermediate connecting sleeve 8, upper joint sleeve 9, packing element top connection 10, packing element
11, central tube 12, packing element lower contact 13, lower joint sleeve 14 and lower contact 15 form.Wherein：
1 outside of the top connection is equipped with cyclic annular dovetail groove, and cyclic annular dovetail groove is made of top connection 1 and the sealed connection of outer barrel 2.Ladder
Sliding sleeve 6 and closedown sliding sleeve 4 are opened in setting in shape slot, are opened sliding sleeve 6 and are connect with top connection 1 by opening shear pin 7, closedown sliding sleeve 4
It is connect with top connection 1 by closing shear pin 3.
Top connection 1 is connected through a screw thread with outer barrel 2, and top connection 1 is connected through a screw thread with intermediate connecting sleeve 8, outer barrel 2 with
Intermediate connecting sleeve 8 is connected through a screw thread.
Upper joint sleeve 9 is connected through a screw thread with intermediate connecting sleeve 8, packing element top connection 10, is connect under lower joint sleeve 14 and packing element
First 13, lower contact 15 is connected through a screw thread.
Central tube 12 is connected through a screw thread with intermediate connecting sleeve 8, lower contact 15.
Top connection 1 is equipped with inlet opening 5.
The packer is connected under completion tubular column to after shaft bottom, is suppressed from well head, and liquid enters from inlet opening 5, when overpressure reaches
It when to setting value, opens shear pin 7 and cuts, open sliding sleeve 6 and move down, release and coordinate with the sealing of the axial limiting of closedown sliding sleeve 4, liquid
Into in the closed chamber between central tube 12 and packing element 11, packing element 11 starts to expand, and 11 outer wall of packing element gradually squeezes the borehole wall, with well
Wall forms sealing.When closed cavity pressure reaches setting value, 4 compression uplink of closedown sliding sleeve, which is cut, closes shear pin 3, closedown sliding sleeve
4 move up, release with open sliding sleeve 6 axial limiting sealing coordinate, open sliding sleeve 6 on be about to inlet opening 5 closure, overpressure and
Closed cavity pressure is orthogonal, 11 permanent expansion of packing element, is formed and is sealed with the borehole wall, isolation packing element top and the bottom.
Claims (3)
1. a kind of fill-type external packer of pipe, including top connection, lower contact and the sliding sleeve being connected between lower contact, center
Pipe, packing element, it is characterized in that：It is equipped with cyclic annular dovetail groove outside the top connection, is arranged in dovetail groove and opens sliding sleeve and closedown sliding sleeve,
Sliding sleeve and the dovetail groove madial wall of top connection is wherein opened to be fixedly connected by opening shear pin, closedown sliding sleeve and top connection it is trapezoidal
Slot lateral wall is fixedly connected by closing shear pin, is opened and is constituted axial limiting sealing cooperation between sliding sleeve and closedown sliding sleeve；On connect
The cyclic annular dovetail groove inner wall of head is equipped with radial inlet opening, and inlet opening is arranged in the top for opening sliding sleeve；Top connection lower part connects
Intermediate connecting sleeve, intermediate connecting sleeve upper end are tightly connected with top connection, and flow-guiding channel, centre connection is axially arranged in intermediate connecting sleeve
Set lower section internal layer is tightly connected by central tube and lower contact internal layer, below intermediate connecting sleeve outer layer pass sequentially through upper joint sleeve,
Packing element, lower joint sleeve and lower contact outer layer seal, and closed chamber is equipped between central tube and upper joint sleeve, packing element, lower joint sleeve, should
Closed chamber is connected to the flow-guiding channel that intermediate connecting sleeve is axially arranged.
2. fill-type external packer of pipe according to claim 1, it is characterized in that：The cyclic annular dovetail groove of the top connection be by
Top connection is tightly connected with outer barrel and constitutes.
3. fill-type external packer of pipe according to claim 1 or 2, it is characterized in that：Upper joint sleeve inner wall connects on packing element
With the upper end for merging sealed holding packing element, lower joint sleeve inner wall, which connect to match with packing element lower contact, merges sealed holding packing element for head connection
Lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710176794.0A CN108625815B (en) | 2017-03-23 | 2017-03-23 | Filling type external pipe packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710176794.0A CN108625815B (en) | 2017-03-23 | 2017-03-23 | Filling type external pipe packer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108625815A true CN108625815A (en) | 2018-10-09 |
| CN108625815B CN108625815B (en) | 2024-02-23 |
Family
ID=63707349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710176794.0A Active CN108625815B (en) | 2017-03-23 | 2017-03-23 | Filling type external pipe packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108625815B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111456672A (en) * | 2020-04-01 | 2020-07-28 | 刘超 | Hydraulic expansion type packer |
| CN113294119A (en) * | 2020-02-21 | 2021-08-24 | 中国石油天然气股份有限公司 | Packer and well completion structure |
| CN113338839A (en) * | 2021-06-15 | 2021-09-03 | 中石化石油工程技术服务有限公司 | Self-locking type oil and gas well open hole section packing well completion device |
| CN113847018A (en) * | 2021-09-30 | 2021-12-28 | 于婷婷 | General pilot production tool for packing off earth formation |
| CN114909104A (en) * | 2021-02-08 | 2022-08-16 | 中国石油化工股份有限公司 | Hydraulic expansion type open hole packer capable of being closed permanently |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2135059Y (en) * | 1992-08-29 | 1993-06-02 | 何树山 | External packer of casing |
| CN202266237U (en) * | 2011-10-22 | 2012-06-06 | 中国石油化工股份有限公司 | Stage cementing device for oil well completion |
| CN203008849U (en) * | 2012-10-21 | 2013-06-19 | 中国石油集团西部钻探工程有限公司 | Tube external self-sealing stage collar device |
| CN103835675A (en) * | 2014-03-18 | 2014-06-04 | 四机赛瓦石油钻采设备有限公司 | Long-rubber-sleeve compression type open hole packer |
| CN203742526U (en) * | 2014-02-10 | 2014-07-30 | 中国石油集团西部钻探工程有限公司 | Cement filling type packer |
| CN203847057U (en) * | 2014-04-09 | 2014-09-24 | 中国石油天然气股份有限公司 | Water injection packer |
| CN104088599A (en) * | 2014-06-30 | 2014-10-08 | 中国海洋石油总公司 | Expansion bridge blinding method for outer packer of cement paste filled pipe |
| CN206769867U (en) * | 2017-03-23 | 2017-12-19 | 中石化石油工程技术服务有限公司 | A kind of fill-type external packer of pipe |
-
2017
- 2017-03-23 CN CN201710176794.0A patent/CN108625815B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2135059Y (en) * | 1992-08-29 | 1993-06-02 | 何树山 | External packer of casing |
| CN202266237U (en) * | 2011-10-22 | 2012-06-06 | 中国石油化工股份有限公司 | Stage cementing device for oil well completion |
| CN203008849U (en) * | 2012-10-21 | 2013-06-19 | 中国石油集团西部钻探工程有限公司 | Tube external self-sealing stage collar device |
| CN203742526U (en) * | 2014-02-10 | 2014-07-30 | 中国石油集团西部钻探工程有限公司 | Cement filling type packer |
| CN103835675A (en) * | 2014-03-18 | 2014-06-04 | 四机赛瓦石油钻采设备有限公司 | Long-rubber-sleeve compression type open hole packer |
| CN203847057U (en) * | 2014-04-09 | 2014-09-24 | 中国石油天然气股份有限公司 | Water injection packer |
| CN104088599A (en) * | 2014-06-30 | 2014-10-08 | 中国海洋石油总公司 | Expansion bridge blinding method for outer packer of cement paste filled pipe |
| CN206769867U (en) * | 2017-03-23 | 2017-12-19 | 中石化石油工程技术服务有限公司 | A kind of fill-type external packer of pipe |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113294119A (en) * | 2020-02-21 | 2021-08-24 | 中国石油天然气股份有限公司 | Packer and well completion structure |
| CN111456672A (en) * | 2020-04-01 | 2020-07-28 | 刘超 | Hydraulic expansion type packer |
| CN111456672B (en) * | 2020-04-01 | 2022-04-26 | 大庆市地油石油机械有限公司 | Hydraulic expansion type packer |
| CN114909104A (en) * | 2021-02-08 | 2022-08-16 | 中国石油化工股份有限公司 | Hydraulic expansion type open hole packer capable of being closed permanently |
| CN114909104B (en) * | 2021-02-08 | 2024-06-18 | 中国石油化工股份有限公司 | Hydraulic expansion type open hole packer capable of being closed permanently |
| CN113338839A (en) * | 2021-06-15 | 2021-09-03 | 中石化石油工程技术服务有限公司 | Self-locking type oil and gas well open hole section packing well completion device |
| CN113847018A (en) * | 2021-09-30 | 2021-12-28 | 于婷婷 | General pilot production tool for packing off earth formation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108625815B (en) | 2024-02-23 |
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