CN107201887A - A kind of extension hanger twin-stage ball seat - Google Patents
A kind of extension hanger twin-stage ball seat Download PDFInfo
- Publication number
- CN107201887A CN107201887A CN201710638596.1A CN201710638596A CN107201887A CN 107201887 A CN107201887 A CN 107201887A CN 201710638596 A CN201710638596 A CN 201710638596A CN 107201887 A CN107201887 A CN 107201887A
- Authority
- CN
- China
- Prior art keywords
- ball seat
- grades
- core
- level
- ball
- 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
- 238000010008 shearing Methods 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 abstract description 13
- 230000003628 erosive effect Effects 0.000 abstract description 8
- 238000010276 construction Methods 0.000 description 9
- 206010024453 Ligament sprain Diseases 0.000 description 4
- 208000010040 Sprains and Strains Diseases 0.000 description 4
- 230000000994 depressogenic effect Effects 0.000 description 4
- 238000005553 drilling Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000009991 scouring Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000000725 suspension 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
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
-
- 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
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)
- Earth Drilling (AREA)
Abstract
The invention discloses a kind of extension hanger twin-stage ball seat, including ball seat body, ball sealer and the ball seat core being arranged in ball seat body, ball seat core is two-stage ball seat core, one-level ball seat in-core footpath is less than two grades of ball seat in-core footpaths, one-level ball seat core is fixed on the inboard that two grades of ball seat cores are exported by one-level ball seat pin, two grades of ball seat cores are fixed on two grades of ball seat core outer shrouds by two grades of ball seat pins, two grades of ball seat core outer shrouds are fixed in ball seat inner body wall, it is provided with below two-stage ball seat core on ball seat basket, ball seat basket and is provided with ball seat basket circulation port.Two grades of ball seat pins are bigger than one-level ball seat pin shearing force.Compact conformation of the present invention, sealing mechanism is reasonable in design, and abrasion-resistance is strong；When one-level can not realize sealing by erosion, two grades of pressures of spraining are carried out, so as to avoid the generation of such down-hole accident.
Description
Technical field
The present invention relates to a kind of Cementing extension hanger ball seat, especially a kind of Cementing extension hanger
Twin-stage ball seat, for tail pipe operation and it is other need underground sprain pressure operation underground construction.
Background technology
Drilling liner cementing technique is deep-well and a kind of the most frequently used method of exceptional well well cementation, the work that drilling liner cementing is commonly used at home
Have for fluid pressure tailpiece hanger.In work progress, ball seat is located at pipe string bottom, during the hanging hanging device of seat, puts into and seals from well head
Ball, reaches ball seat position by pumping ball sealer, blocks mud circulation canal, and realization, which is sprained, is depressed into hanger seat extension pressure, complete
Hung into hanger seat.Then sprain and be depressed into ball seat opening pressure, ball seat is sprained logical, set up circulation.
Single-stage ball seat is used in current new packer liner-hanger construction.In work progress, pipe string in place after, for prevent hanger seat
After extension, circulation canal diminishes, and shaft bottom recycles the silt come and accumulated at hanger slips, typically takes and has first circulated drilling fluid
Pitching operation is carried out again.Because the mud material contained in drilling fluid, and well occur leakage and carry out leak stopping used in leak stopping
Material is in prolonged circulating fluid operation, and the sealing surface of ball seat easily produces seal defect by erosion, causes ball sealer
Sealing can not be realized when reaching ball seat, prevents hydraulic suspension hanging device from realizing that seat extension, or ball seat can not be opened, it is impossible to set up big row
Amount circulation.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of extension hanger twin-stage ball seat, keep away because of conventional ball seat
The down-hole accident that core valve is caused by erosion.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is：A kind of extension hanger twin-stage ball seat,
Including ball seat body, ball sealer and the ball seat core being arranged in ball seat body, ball seat core is two-stage ball seat core, one-level ball seat in-core
Footpath is less than two grades of ball seat in-core footpaths, and one-level ball seat core is fixed on the inboard that two grades of ball seat cores are exported, two by one-level ball seat pin
Level ball seat core is fixed on two grades of ball seat core outer shrouds by two grades of ball seat pins, and two grades of ball seat core outer shrouds are fixed in ball seat body
On wall, it is provided with below two-stage ball seat core on ball seat basket, ball seat basket and is provided with ball seat basket circulation port.
Two grades of ball seat pins are bigger than one-level ball seat pin shearing force.
The beneficial effects of the invention are as follows：Compact conformation, sealing mechanism is reasonable in design, and abrasion-resistance is strong；Due to secondary seal
The circulation aperture in face is big relative to primary cycle aperture, and when mud is circulated, flow velocity herein is relatively low, therefore mud is circulated
When, it is smaller to the scouring force in secondary seal face, therefore, the washed out possibility very little in secondary seal face.When one-level by erosion without
When method realizes sealing, two grades of pressures of spraining are carried out, so as to avoid the generation of such down-hole accident.
Brief description of the drawings
Fig. 1 is the structural representation of the extension hanger twin-stage ball seat of the present invention.
Embodiment
The present invention is described in further detail with reference to the accompanying drawings and detailed description：
As shown in figure 1, extension hanger of the present invention twin-stage ball seat, including ball seat body 1, ball sealer and it is arranged on ball seat
Ball seat core in body, ball seat core is two-stage ball seat core, and the internal diameter of one-level ball seat core 8 is less than two grades of internal diameters of ball seat core 5, one-level ball seat
Core 8 is fixed on the inboard that two grades of ball seat cores 5 are exported by one-level ball seat pin 7, and two grades of ball seat cores 5 pass through two grades of ball seat pins 3
It is fixed on two grades of ball seat core outer shrouds 4, two grades of ball seat core outer shrouds 4 are fixed on the inwall of ball seat body 1, below two-stage ball seat core
It is provided with ball seat basket 10, ball seat basket 10 and is provided with ball seat basket circulation port 11.
Two grades of ball seat pins 3 are bigger than one-level ball seat 7 shearing forces of pin.
Specifically, one-level ball seat core 8 is fixed on two grades of ball seat cores 5 by one-level ball seat pin 7.One-level ball seat core 8
Circulation internal diameter meet construction circulation and require that its internal diameter size is less than two grades of internal diameter sizes of ball seat core 5.When mud is circulated, two grades
Mud speed rate is lower than at one-level ball seat core 8 at ball seat core 5, and scouring force is also much smaller.It is hereby ensured that two grades of ball seat cores 5
Sealing surface is not by erosion.
Two grades of ball seat cores 5 are fixed on two grades of ball seat core outer shrouds 4 by two grades of ball seat pins 3.Two grades of ball seat pins 3 to one
Level ball seat 7 shearing forces of pin are big, it can be ensured that when one-level is cut, two grades will not destroy.Outside ball seat basket 10 and two grades of ball seat cores
There are enough spaces between ring 4, it can be ensured that one-level ball seat core 8 and two grades of ball seat cores 9 and two ball sealers drop to ball seat basket
Circulation port will not be blocked on 10.
From well head input primary seal ball 13 during construction, reach and realize that sealing is sprained pressure at the sealing inclined-plane of one-level ball seat core 8.It is complete
Into after construction, sprain and be depressed into one-level opening pressure, cut one-level ball seat pin 7, one-level ball seat core 8 rises and falls with primary seal ball 13 1
Enter ball seat basket 10, mud is set up by ball seat basket circulation port 11 to be circulated, and completes subsequent construction.
When one-level ball seat core 8 is unable to reach construction effect because of mud circulation erosion, from well head input secondary seal ball 12,
Reach and realize that sealing is sprained pressure at two grades of ball seat cores 5, and complete after subsequent construction, sprain and be depressed into two grades of opening pressure, two grades of balls of cutting
Seat pin nail 3, two grades of ball seat cores 5 fall into ball seat basket 10 together with the related further device of secondary seal ball 12, and mud passes through ball seat basket
Circulation port 11 sets up circulation, completes subsequent construction.9 be jump ring, and 2 and 4 be sealing ring, for sealing one-level ball seat core 8 and two grades
Ball seat core 5, two grades of ball seat cores 5 and two grades of ball seat core outer shrouds 4.
The present invention is big relative to primary cycle aperture due to the circulation aperture in secondary seal face, when mud is circulated, herein
Flow velocity it is relatively low, therefore mud circulation when, smaller to the scouring force in secondary seal face, therefore, secondary seal face is by erosion
Possibility very little.When one-level can not realize sealing by erosion, two grades of pressures of spraining are carried out, so as to avoid such down-hole accident
Generation.The present invention also can operate with hydraulic releasing hanger, when hydraulic releasing hanger does not still have when ball seat pin is cut
When giving up, secondary seal ball can be put into, secondary seal is set up, operation of giving up is realized before high one-level cuts off cutting.
In summary, present disclosure is not limited in the above embodiments, and the knowledgeable people in same area can
Can propose other embodiments easily within the technological guidance's thought of the present invention, but this embodiment is included in this hair
Within the scope of bright.
Claims (2)
1. a kind of extension hanger twin-stage ball seat, including ball seat body (1), ball sealer and the ball seat being arranged in ball seat body
Core, it is characterised in that ball seat core is two-stage ball seat core, one-level ball seat core (8) internal diameter is less than two grades of ball seat core (5) internal diameters, one-level
Ball seat core (8) is fixed on the inboard that two grades of ball seat cores (5) export by one-level ball seat pin (7), and two grades of ball seat cores (5) pass through two
Level ball seat pin (3) is fixed on two grades of ball seat core outer shrouds (4), and two grades of ball seat core outer shrouds (4) are fixed on ball seat body (1) inwall
On, it is provided with below two-stage ball seat core on ball seat basket (10), ball seat basket (10) and is provided with ball seat basket circulation port (11).
2. extension hanger twin-stage ball seat according to claim 1, it is characterised in that two grades of ball seat pins (3) ratio
One-level ball seat pin (7) shearing force is big.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710638596.1A CN107201887A (en) | 2017-07-31 | 2017-07-31 | A kind of extension hanger twin-stage ball seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710638596.1A CN107201887A (en) | 2017-07-31 | 2017-07-31 | A kind of extension hanger twin-stage ball seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107201887A true CN107201887A (en) | 2017-09-26 |
Family
ID=59911374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710638596.1A Pending CN107201887A (en) | 2017-07-31 | 2017-07-31 | A kind of extension hanger twin-stage ball seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107201887A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109838217A (en) * | 2017-11-28 | 2019-06-04 | 中国石油大学(北京) | With brill pipeline scraper |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200946484Y (en) * | 2006-09-23 | 2007-09-12 | 中国石化集团胜利石油管理局渤海钻井总公司固井公司 | Upper-pull type rigid reset self-grouting floating hoop |
| CN201024982Y (en) * | 2007-04-28 | 2008-02-20 | 中国石油天然气股份有限公司 | A concrete extrusion and injection control tool |
| US20080110625A1 (en) * | 2006-11-15 | 2008-05-15 | Jeffrey James Arcement | Stress reduced cement shoe or collar body |
| US20080283251A1 (en) * | 2007-05-16 | 2008-11-20 | Phil Barbee | Method and apparatus for dropping a pump down plug or ball |
| CN202788755U (en) * | 2012-07-20 | 2013-03-13 | 中国石油化工股份有限公司 | Twin-stage ball seat type sliding sleeve |
| CN203925412U (en) * | 2014-06-24 | 2014-11-05 | 中国石油集团渤海钻探工程有限公司 | A kind of extension hanger twin-stage ball seat |
-
2017
- 2017-07-31 CN CN201710638596.1A patent/CN107201887A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200946484Y (en) * | 2006-09-23 | 2007-09-12 | 中国石化集团胜利石油管理局渤海钻井总公司固井公司 | Upper-pull type rigid reset self-grouting floating hoop |
| US20080110625A1 (en) * | 2006-11-15 | 2008-05-15 | Jeffrey James Arcement | Stress reduced cement shoe or collar body |
| CN201024982Y (en) * | 2007-04-28 | 2008-02-20 | 中国石油天然气股份有限公司 | A concrete extrusion and injection control tool |
| US20080283251A1 (en) * | 2007-05-16 | 2008-11-20 | Phil Barbee | Method and apparatus for dropping a pump down plug or ball |
| CN202788755U (en) * | 2012-07-20 | 2013-03-13 | 中国石油化工股份有限公司 | Twin-stage ball seat type sliding sleeve |
| CN203925412U (en) * | 2014-06-24 | 2014-11-05 | 中国石油集团渤海钻探工程有限公司 | A kind of extension hanger twin-stage ball seat |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109838217A (en) * | 2017-11-28 | 2019-06-04 | 中国石油大学(北京) | With brill pipeline scraper |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170926 |
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| RJ01 | Rejection of invention patent application after publication |