CN205858254U - A kind of drilling and repairing well annular preventer - Google Patents
A kind of drilling and repairing well annular preventer Download PDFInfo
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- CN205858254U CN205858254U CN201620872304.1U CN201620872304U CN205858254U CN 205858254 U CN205858254 U CN 205858254U CN 201620872304 U CN201620872304 U CN 201620872304U CN 205858254 U CN205858254 U CN 205858254U
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- rest shoe
- top cover
- retaining ring
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Abstract
The utility model discloses a kind of drilling and repairing well annular preventer, including housing, housing upper end is provided with top cover, housing hollow is provided with piston, piston upper end is provided with spherical glue core, in the middle part of piston, boss is enclosed in the horizontal-extending formation of outer wall one, is provided with mud retaining ring, is provided with rectangular seal between mud retaining ring outer wall and inner walls between upper piston area and inner walls；Being radially arranged rest shoe between top cover and housing, rest shoe one end is connected with rest shoe supporting screw, and rest shoe supporting screw periphery is set with rest shoe screw；Rest shoe, as the connection bearing part between housing and top cover, regulates rest shoe radial position in the housing by the rotation of rest shoe screw, rest shoe supporting screw, thus locks or unlock top cover.This utility model overall structure is simple, easy accessibility, sealing leak point are few, stable working is reliable, extend complete machine changes the sealing member cycle, extension device service life, significantly reduces production cost.
Description
Technical field
This utility model relates to oil drilling and extracting equipment field, particularly to a kind of drilling and repairing well annular preventer.
Background technology
Drilling and repairing well preventer is requisite equipment in oil and natural gas drilling engineering, and the kind of preventer comprises
Annular preventer, ram preventer, drilling spool etc..Existing annular preventer possesses effectively closes well head, when preventing drilling well
Blowout and process the functions such as other complex situations.Be characterized in that pressure-bearing is high, safe and reliable, compact conformation, switching manipulation convenient
Rapidly, it is particularly well-suited to seal variously-shaped and various sizes of tubing string, it is possible to totally-enclosed well head.
Along with oil-gas exploration deep-well, the development of ultradeep well, the increase of high-pressure oil-gas well and extensively adopting of balanced drilling technique
With, particularly for find, liberation, reservoir protec-tion and be increasingly subject to pay attention under balance pressure drilling in, well-control equipment can and
Shi Faxian also controls overflow, prevents blowout, it is to avoid petroleum resources is wasted, and the key equipment of protection equipment and personal safety is to closing weight
Want.In recent years, drilling technology to the development of well-control equipment with use require more and more higher, do not require nothing more than have safe and reliable,
Quick and flexible switch, but also should possess the features such as multi-functional, portable construction, easy to operate, integrated operation.Existing blowout prevention
Device can not meet the demand of people.
Utility model content
The purpose of this utility model is to overcome the deficiency in the presence of prior art, it is provided that a kind of portable construction, operation
The drilling and repairing well annular preventer of the features such as convenience, integrated operation.
In order to realize above-mentioned utility model purpose, this utility model provides techniques below scheme:
A kind of drilling and repairing well annular preventer, including housing, described housing upper end is provided with top cover, inside described top cover
Being provided with spherical cavity, described enclosure interior is provided with cavity, and cavity, in falling " convex " shape, is provided with piston in described housing hollow, described
Piston upper end is provided with spherical glue core, is provided with piston packing II, described piston between described piston cylindrical wall and housing
Boss is enclosed in the middle part horizontal-extending formation of outer wall one, is provided with piston packing I between described boss and housing, described upper piston area with
It is provided with mud retaining ring between inner walls, between upper piston area outer wall and mud retaining ring inwall, is provided with mud retaining ring sealing ring, keep off mud
It is provided with rectangular seal between ring outer wall and inner walls；Rest shoe, described pawl it has been radially arranged between described top cover and housing
Block one end is connected with rest shoe supporting screw, and rest shoe supporting screw periphery is set with rest shoe screw；Rest shoe as housing and top cover it
Between connection bearing part, regulate rest shoe radial position in the housing by the rotation of rest shoe screw, rest shoe supporting screw, from
And lock or unlock top cover.Utilize hydraulic pressure to open and close spherical glue core, when piston oil pocket B force feed promote under, piston to
Upper motion, pushes glue core, and glue core is constantly forced up concentric contraction, and final realization seals tubing string or totally-enclosed well head.Work as piston
Under oil pocket A oil pressure promotes, moving downward, now glue core resets under deadweight and elastic force effect own, and is ultimately at freedom
State, fully opens well head.Top land arranges spherical glue core, have when glue core is closed seal zero effective, reply immediately soon when opening
Former characteristic.
As preferably, more than the boss of described piston, mud retaining ring, housing collectively form top oil pressure annular space, referred to as oil pocket
A；Collectively form bottom oil pressure annular space, referred to as oil pocket B with housing below piston boss；Control the turnover oil of oil pocket A and oil pocket B
Pressure, it is achieved piston moves up and down and opens or closes spherical glue core.
As preferably, described piston with its in the middle part of a circle boss of the horizontal-extending formation of outer wall be formed in one.One becomes
Type decreases installation procedure, decreases maintenance probability, improves work efficiency.Piston the most respectively with mud retaining ring, housing
The little contact internal walls of the big inwall in top and bottom, piston held stationary in up and down motion runs, and is difficult to scuffing of cylinder bore.
As preferably, described top cover, mud retaining ring, piston and housing are positioned at same axial line.The most flat
Surely, increase the service life.
Operation principle of the present utility model is: when oil pocket B oil extraction, oil pocket A oil-feed, piston under high pressure liquid force feed promotes to
Upper motion, pushes spherical glue core, and spherical glue core is constantly forced up concentric contraction, and final realization seals tubing string or totally-enclosed well
Mouthful；Otherwise, when oil pocket A oil-feed, oil pocket B oil extraction, piston moves downward under hydraulic drive, the most spherical glue core rely on deadweight and
Reset under elastic force effect own, and be ultimately at free state, fully open well head.
Compared with prior art, the beneficial effects of the utility model are, by spheroidal glue core annular preventer and conical rubber
The advantage of core annular preventer flocks together, and can meet annular preventer glue core and seal zero and the requirement of fast quick-recovery smoothly,
Can effectively overcome again that existing spherical glue core annular preventer oil cylinder is easily pulled, the life-span is short, the easy depositing contaminants of mud retaining ring, closure stud
Seal zero difficulty after dismounting the compression of loaded down with trivial details and conical rubber core annular preventer glue core and recover the shortcoming such as slow.This annular preventer is whole
Body simple in construction, easy accessibility, sealing leak point are few, safe and reliable, quick and flexible switch, but also should possess many merits
The features such as energy, portable construction, easy to operate, integrated operation, it is also possible to extend the complete machine replacing sealing member cycle and preventer exists
The labour time, significantly reduce production cost.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
Below in conjunction with test example and detailed description of the invention, this utility model is described in further detail.But should be by this
It is interpreted as that the scope of the above-mentioned theme of this utility model is only limitted to below example, all is realized based on this utility model content
Technology belongs to scope of the present utility model.
Embodiment 1
A kind of drilling and repairing well annular preventer, including housing 12, described housing 12 upper end is provided with top cover 1, described top cover
The 1 internal spherical cavity that is provided with, described housing 12 inside is provided with cavity, and cavity, in falling " convex " shape, is provided with in described housing 12 cavity
Piston 10, described piston 10 upper end is provided with spherical glue core 2, is provided with piston between described piston 10 lower end cylindrical wall and housing 12
Sealing ring II 11, in the middle part of described piston 10, boss is enclosed in the horizontal-extending formation of outer wall one, is provided with work between described boss and housing 12
Plug sealing ring I 9, is provided with mud retaining ring 6, piston 10 external wall of upper portion and mud retaining ring between described piston 10 top and housing 12 inwall
It is provided with mud retaining ring sealing ring 8 between 6 inwalls, between mud retaining ring 6 outer wall and housing 12 inwall, is provided with rectangular seal 7；Institute
Stating and be radially arranged rest shoe 3 between top cover 1 and housing 12, described rest shoe 3 one end is connected with rest shoe supporting screw 5, rest shoe supporting
Screw 5 periphery is set with rest shoe screw 4；Rest shoe 3 is as the connection bearing part between housing 12 and top cover 1, by rest shoe screw
4, the rotation of rest shoe supporting screw 5 regulates the rest shoe 3 radial position in housing 12, thus locks or unlock top cover 1.
Embodiment 2
A kind of drilling and repairing well annular preventer, including housing 12, described housing 12 upper end is provided with top cover 1, described top cover
The 1 internal spherical cavity that is provided with, described housing 12 inside is provided with cavity, and cavity, in falling " convex " shape, is provided with in described housing 12 cavity
Piston 10, described piston 10 upper end is provided with spherical glue core 2, is provided with piston between described piston 10 lower end cylindrical wall and housing 12
Sealing ring II 11, in the middle part of described piston 10, boss is enclosed in the horizontal-extending formation of outer wall one, is provided with work between described boss and housing 12
Plug sealing ring I 9, is provided with mud retaining ring 6, piston 10 external wall of upper portion and mud retaining ring between described piston 10 top and housing 12 inwall
It is provided with mud retaining ring sealing ring 8 between 6 inwalls, between mud retaining ring 6 outer wall and housing 12 inwall, is provided with rectangular seal 7；Institute
Stating and be radially arranged rest shoe 3 between top cover 1 and housing 12, described rest shoe 3 one end is connected with rest shoe supporting screw 5, rest shoe supporting
Screw 5 periphery is set with rest shoe screw 4；Rest shoe 3 is as the connection bearing part between housing 12 and top cover 1, by rest shoe screw
4, the rotation of rest shoe supporting screw 5 regulates the rest shoe 3 radial position in housing 12, thus locks or unlock top cover 1.
More than the boss of described piston 10, mud retaining ring 6, housing 12 collectively form top oil pressure annular space, referred to as oil pocket A；Live
Fill in below 10 boss and collectively form bottom oil pressure annular space, referred to as oil pocket B with housing 12；Control the turnover oil of oil pocket A and oil pocket B
Pressure, it is achieved piston 10 moves up and down and opens or closes spherical glue core 2.
Embodiment 3
A kind of drilling and repairing well annular preventer, including housing 12, described housing 12 upper end is provided with top cover 1, described top cover
The 1 internal spherical cavity that is provided with, described housing 12 inside is provided with cavity, and cavity, in falling " convex " shape, is provided with in described housing 12 cavity
Piston 10, described piston 10 upper end is provided with spherical glue core 2, is provided with piston between described piston 10 lower end cylindrical wall and housing 12
Sealing ring II 11, in the middle part of described piston 10, boss is enclosed in the horizontal-extending formation of outer wall one, is provided with work between described boss and housing 12
Plug sealing ring I 9, is provided with mud retaining ring 6, piston 10 external wall of upper portion and mud retaining ring between described piston 10 top and housing 12 inwall
It is provided with mud retaining ring sealing ring 8 between 6 inwalls, between mud retaining ring 6 outer wall and housing 12 inwall, is provided with rectangular seal 7；Institute
Stating and be radially arranged rest shoe 3 between top cover 1 and housing 12, described rest shoe 3 one end is connected with rest shoe supporting screw 5, rest shoe supporting
Screw 5 periphery is set with rest shoe screw 4；Rest shoe 3 is as the connection bearing part between housing 12 and top cover 1, by rest shoe screw
4, the rotation of rest shoe supporting screw 5 regulates the rest shoe 3 radial position in housing 12, thus locks or unlock top cover 1.
More than the boss of described piston 10, mud retaining ring 6, housing 12 collectively form top oil pressure annular space, referred to as oil pocket A；Live
Fill in below 10 boss and collectively form bottom oil pressure annular space, referred to as oil pocket B with housing 12；Control the turnover oil of oil pocket A and oil pocket B
Pressure, it is achieved piston 10 moves up and down and opens or closes spherical glue core 2.
Described piston 10 with its in the middle part of the horizontal-extending formation of outer wall one circle boss be formed in one, piston 10 is from top to bottom
Respectively with mud retaining ring 6, the little contact internal walls of the big inwall in housing 12 top and bottom, piston 10 is held stationary fortune in up and down motion
OK, it is difficult to scuffing of cylinder bore.
Described top cover 1, mud retaining ring 6, piston 10 and housing 12 are positioned at same axial line.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all at this
Any amendment, equivalent and the improvement etc. made within the spirit of utility model and principle, should be included in this utility model
Protection domain within.
Claims (4)
1. a drilling and repairing well annular preventer, including housing (12), described housing (12) upper end is provided with top cover (1), and it is special
Levying and be: described top cover (1) is internal is provided with spherical cavity, described housing (12) is internal is provided with cavity, and cavity is in falling " convex " shape, described
Being provided with piston (10) in housing (12) cavity, described piston (10) top is provided with spherical glue core (2), described piston (10)
Piston packing II (11), described piston (10) the middle part horizontal-extending formation of outer wall it is provided with between lower end cylindrical wall and housing (12)
One circle boss, is provided with piston packing I (9), described piston (10) top and housing (12) between described boss and housing (12)
It is provided with mud retaining ring (6) between inwall, between piston (10) external wall of upper portion and mud retaining ring (6) inwall, is provided with mud retaining ring sealing ring
(8), rectangular seal (7) it is provided with between mud retaining ring (6) outer wall and housing (12) inwall；Described top cover (1) and housing (12)
Between be radially arranged rest shoe (3), described rest shoe (3) one end is connected with rest shoe supporting screw (5), and rest shoe supporting screw (5) is outward
It is set with rest shoe screw (4) week；Rest shoe (3) is as the connection bearing part between housing (12) and top cover (1), by rest shoe screw
(4), the rotation of rest shoe supporting screw (5) regulates the rest shoe (3) radial position in housing (12).
A kind of drilling and repairing well annular preventer the most according to claim 1, it is characterised in that: the boss of described piston (10)
Above, mud retaining ring (6), housing (12) collectively form top oil pressure annular space, referred to as oil pocket A；With housing below piston (10) boss
(12) bottom oil pressure annular space, referred to as oil pocket B are collectively formed；Control the turnover oil pressure of oil pocket A and oil pocket B, it is achieved on piston (10),
Lower movement opens or closes spherical glue core (2).
A kind of drilling and repairing well annular preventer the most according to claim 1, it is characterised in that: described piston (10) with wherein
The horizontal-extending formation of portion's outer wall one circle boss be formed in one, piston (10) the most respectively with mud retaining ring (6), housing
(12) the little contact internal walls of the big inwall in top and bottom.
A kind of drilling and repairing well annular preventer the most according to claim 1, it is characterised in that: described top cover (1), mud retaining ring
(6), piston (10) and housing (12) are positioned at same axial line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620872304.1U CN205858254U (en) | 2016-08-12 | 2016-08-12 | A kind of drilling and repairing well annular preventer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620872304.1U CN205858254U (en) | 2016-08-12 | 2016-08-12 | A kind of drilling and repairing well annular preventer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205858254U true CN205858254U (en) | 2017-01-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620872304.1U Active CN205858254U (en) | 2016-08-12 | 2016-08-12 | A kind of drilling and repairing well annular preventer |
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| CN (1) | CN205858254U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106065769A (en) * | 2016-08-12 | 2016-11-02 | 宝鸡石油机械有限责任公司广汉钻采设备厂 | Drilling and repairing well annular preventer |
| CN110637144A (en) * | 2017-05-17 | 2019-12-31 | 动压控制有限责任公司 | Rotary drive actuator for annular wellbore pressure control device |
| CN112647886A (en) * | 2020-12-31 | 2021-04-13 | 江苏信得石油机械股份有限公司 | Annular blowout preventer for oil field well mouth |
| CN113137203A (en) * | 2021-05-27 | 2021-07-20 | 青海九零六工程勘察设计院 | Well head blowout prevention protection structure for underground water drilling process |
-
2016
- 2016-08-12 CN CN201620872304.1U patent/CN205858254U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106065769A (en) * | 2016-08-12 | 2016-11-02 | 宝鸡石油机械有限责任公司广汉钻采设备厂 | Drilling and repairing well annular preventer |
| CN110637144A (en) * | 2017-05-17 | 2019-12-31 | 动压控制有限责任公司 | Rotary drive actuator for annular wellbore pressure control device |
| CN112647886A (en) * | 2020-12-31 | 2021-04-13 | 江苏信得石油机械股份有限公司 | Annular blowout preventer for oil field well mouth |
| CN112647886B (en) * | 2020-12-31 | 2022-07-05 | 江苏信得石油机械股份有限公司 | Annular blowout preventer for oil field well mouth |
| CN113137203A (en) * | 2021-05-27 | 2021-07-20 | 青海九零六工程勘察设计院 | Well head blowout prevention protection structure for underground water drilling process |
| CN113137203B (en) * | 2021-05-27 | 2022-02-11 | 青海九零六工程勘察设计院 | Well head blowout prevention protection structure for underground water drilling process |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |