CN201090170Y - Spherical blowout preventer with water cooling function - Google Patents
Spherical blowout preventer with water cooling function Download PDFInfo
- Publication number
- CN201090170Y CN201090170Y CNU2007201732712U CN200720173271U CN201090170Y CN 201090170 Y CN201090170 Y CN 201090170Y CN U2007201732712 U CNU2007201732712 U CN U2007201732712U CN 200720173271 U CN200720173271 U CN 200720173271U CN 201090170 Y CN201090170 Y CN 201090170Y
- Authority
- CN
- China
- Prior art keywords
- piston
- casing
- housing
- rubber
- top cap
- 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.)
- Expired - Lifetime
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title 1
- 239000004636 vulcanized rubber Substances 0.000 claims abstract description 11
- 210000003205 muscle Anatomy 0.000 claims description 9
- 239000000446 fuel Substances 0.000 claims description 7
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 2
- 238000005553 drilling Methods 0.000 abstract description 3
- 239000003292 glue Substances 0.000 description 15
- 238000007789 sealing Methods 0.000 description 9
- 239000003921 oil Substances 0.000 description 5
- 238000010795 Steam Flooding Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 239000010720 hydraulic oil Substances 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 239000010727 cylinder oil Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
Images
Landscapes
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model provides a take water-cooled ball-type preventer, by end flange 1, top cap 2, piston 3, vulcanized rubber 4, bow-shaped brace rod 5, cooling cavity 6, casing 7, supply oil chamber 8, go up connecting bolt 9, wear ring 10 and constitute, the utility model discloses owing to adopt end flange and casing to be connected, be hemispherical top cap and casing by last connecting bolt connection, have vulcanized rubber in the top cap, bow-shaped brace rod, it is the section below and is "Z" shape piston to enclose into the cooling cavity with the casing, there is the oil chamber bottom the casing, when the discovery kick needs to be sealed the well, piston upward movement forces the rubber core along sphere upward movement, because the top cap restriction, the brace rod draws close each other, extrudes the rubber between them to the well head center, realizes sealed drilling tool or totally enclosed well mouth. When the piston needs to be opened, a reversing valve of the hydraulic system is operated, so that high-pressure oil enters the oil cylinder at the upper part of the piston from the upper oil port. The rubber core is loosened and expanded, the original shape is recovered, and the wellhead is opened. The device has simple structure and easy operation, and is very suitable for field application.
Description
Technical field:
The utility model relates to the blowout prevention instrument that uses on a kind of oilfield, particularly a kind ofly is with water-cooled ball-type preventer.
Background technology:
Along with the carrying out of the polynary conversion mining type of heavy crude reservoir, the steam driving exploitation technology has obtained constantly improving and improving.But carry out in the process and the operation of later stage replacing tubing string at steam flooding, all need bring very big difficulty to job execution carrying out (steam injecting temperature is more than 300 ℃) under the high-temperature steam environment.In addition, being accompanied by steam flooding carries out, lower production-injection ratio brings producing well pressure, temperature constantly to raise, and oil reservoir vapour is scurried and more aggravated the influence (producing well bottom hole temperature (BHT) about 200 ℃) of temperature to job execution, therefore all requires to carry out under high-temperature condition for job executions such as inspection pumps.Take kill job, not only can influence temperature that the steam flooding well group formed, also can polluted reservoir, therefore, suddenly wait to develop a kind of under high-temperature condition, do not need kill job can carry out the technology of job execution.
The utility model content:
The purpose of this utility model is to provide a kind of water-cooled ball-type preventer of being with.Be a kind of in well medium be under the environment of high temperature and high pressure steam, do not take any kill-job measure, can realize that safety plays the workover treatment device of lower tubular column construction.
The utility model is to realize like this, by end flange (1), top cover (2), piston (3), vulcanized rubber (4), arch support muscle (5), cooling cavity (6), housing (7), fuel supply chamber (8), last connecting bolt (9), wear ring (10) is formed, end flange (1) is connected with housing (7), being hemispheric top cover (2) is connected by last connecting bolt (9) with housing (7), vulcanized rubber (4) is arranged in top cover (2), arch support muscle (5), be that section is " Z " shape piston (3) under it, be embedded with wear ring (10) on the piston (3), and surround cooling cavity (6) with housing (7), fuel supply chamber (8) is arranged in housing (7) bottom.
Operating principle: this utility model is handled by hydraulic control system.When finding that well kick need be shunt in a well, enter the piston bottom from the defeated next hydraulic oil of control system from following hydraulic fluid port, the promotion piston moves upward, force the glue core to move upward along sphere, because top cover restriction, supporting rib is drawn close mutually, and therebetween rubber is pressed to the well head center, realizes sealing drilling tool or full shut-in well mouthful.In the time of need opening, the reversal valve of control hydraulic system makes hydraulic oil enter the oil cylinder on piston top from last hydraulic fluid port.Following oil cylinder oil return promotes descent of piston, the glue core is unclamped swell, and resiles, and well head is opened.
The utility model is owing to adopt end flange to be connected with housing, being hemispheric top cover is connected by last connecting bolt with housing, vulcanized rubber, arch support muscle are arranged in top cover, be that section is " Z " shape piston under it, be embedded with wear ring on the piston, and surround the cooling cavity with housing, at housing bottom fuel supply chamber is arranged, when finding that well kick need be shunt in a well, piston moves upward, and forces the glue core to move upward along sphere, because top cover restriction, supporting rib is drawn close mutually, and therebetween rubber is pressed to the well head center, realizes sealing drilling tool or full shut-in well mouthful.In the time of need opening, the reversal valve of control hydraulic system makes hydraulic oil enter the oil cylinder on piston top from last hydraulic fluid port.The glue core is unclamped swell, resile, well head is opened.It is simple in structure, and processing ease is well suited for The field.
Description of drawings:
Accompanying drawing is a structural representation of the present utility model.
The specific embodiment:
The utility model is provided by following examples, is illustrated below in conjunction with accompanying drawing.
As shown in the figure, the utility model is made up of end flange 1, top cover 2, piston 3, vulcanized rubber 4, arch support muscle 5, cooling cavity 6, housing 7, fuel supply chamber 8, last connecting bolt 9, wear ring 10, end flange 1 is connected with housing 7, being hemispheric top cover 2 is connected by last connecting bolt 9 with housing 7, vulcanized rubber 4, arch support muscle 5 are arranged in top cover 2, be that section is " Z " shape piston 3 under it, be embedded with wear ring 10 on the piston 3, and with housing 7 surround the cooling cavity 6, at housing bottom fuel supply chamber 8 is arranged.
Be hemispheric top cover 2 and housing 7 be connected and upper and lower end parts connects and all adopts flange bolt to connect.This syndeton is simple, easily makes.Vulcanized rubber 4 is hemispherical.Arch support muscle 5 is cast with alloy steel.
Adopt this structure, be difficult for turning over glue.At the shut-in well state, well is pressed to make on the rubber of glue core middle part and is turned over, and turns on the supporting rib prevention rubber, makes rubber be in the state that is squeezed safely, can bear big extruding force, and unlikely tearing.
Funneling effect.Spherical glue core is from the free state to the closed state, and dwindling of each cross-sectional diameter is unequal.Thereby the maximum bottoms of rubber that extrude at glue core top are minimum, form the upside down funnel shape.The flow direction of this rubber not only can improve sealing performance, and it is easy to make tool joint enter the glue core.Under when boring, because of well is pressed to compression glue core, the glue core avoids being subjected to tensile stress and application life of having improved the glue core.
The rubber storage level is big.The rubber storage level of spherical glue core is than big many of the glue core of other type, make a trip by force be worn after, there have more standby rubber to extrude successively to be additional.
Well is pressed and is helped envelope.Act on borehole pressure on the piston cavity annulus area push piston that makes progress, impel the sealing of glue core tightr, increase sealing reliability.
The hermetically-sealed construction characteristics:
The utility model has three main sealing positions
Piston 3 external diameters sealing position (on piston external diameter, packing oil cylinder switch two chambeies);
Piston 3 internal diameters sealing position (packing well is pressed and closed the chamber on housing);
Mud retaining ring sealing position (packing well is pressed and opened the chamber on mud retaining ring);
The radially section of piston 3 is " Z " shape, and stroke is short, highly low, radial dimension is big.
Be stained with two road wear rings 10 on piston 3 outside cylinder.It is avoided, and metal contacts with the direct of metal in the piston motion process, protection piston 3 and housing 7.
Design has an annular cooling cavity 6 on the housing 7, connects the recirculated cooling water of joint on housing, can be to the preventer inside that hot environment (≤250 ℃) the is used cooling that circulates.
Claims (2)
1. be with water-cooled ball-type preventer for one kind, by end flange (1), top cover (2), piston (3), vulcanized rubber (4), arch support muscle (5), cooling cavity (6), housing (7), fuel supply chamber (8), last connecting bolt (9), wear ring (10) is formed, it is characterized in that: end flange (1) is connected with housing (7), being hemispheric top cover (2) is connected by last connecting bolt (9) with housing (7), vulcanized rubber (4) is arranged in top cover (2), arch support muscle (5), be that section is " Z " shape piston (3) under it, be embedded with wear ring (10) on the piston (3), and surround cooling cavity (6) with housing (7), fuel supply chamber (8) is arranged in housing (7) bottom.
2. a kind of water-cooled ball-type preventer of being with according to claim 1, vulcanized rubber (4) is hemispherical, and arch support muscle (5) is cast with alloy steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201732712U CN201090170Y (en) | 2007-09-21 | 2007-09-21 | Spherical blowout preventer with water cooling function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201732712U CN201090170Y (en) | 2007-09-21 | 2007-09-21 | Spherical blowout preventer with water cooling function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201090170Y true CN201090170Y (en) | 2008-07-23 |
Family
ID=39861930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201732712U Expired - Lifetime CN201090170Y (en) | 2007-09-21 | 2007-09-21 | Spherical blowout preventer with water cooling function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201090170Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470207A (en) * | 2013-10-09 | 2013-12-25 | 盐城亚雄机械制造有限公司 | Annular preventer with internally-arranged circulating water cooling system |
| CN104653142A (en) * | 2013-11-22 | 2015-05-27 | Zp因特莱茨有限责任公司 | Spherical-annular blowout preventer having a plurality of pistons |
| US9109421B2 (en) | 2008-12-18 | 2015-08-18 | Hydril USA Distribution LLC | Deformation resistant opening chamber head and method |
| CN104863539A (en) * | 2015-05-14 | 2015-08-26 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | Axial surrounding cooling structure of rotary blowout preventer |
| CN105443068A (en) * | 2015-12-16 | 2016-03-30 | 常熟市虹桥铸钢有限公司 | Blowout preventer piston |
| CN112360383A (en) * | 2021-01-12 | 2021-02-12 | 山东柏源技术有限公司 | Blowout preventer for petroleum drilling |
-
2007
- 2007-09-21 CN CNU2007201732712U patent/CN201090170Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9109421B2 (en) | 2008-12-18 | 2015-08-18 | Hydril USA Distribution LLC | Deformation resistant opening chamber head and method |
| CN103470207A (en) * | 2013-10-09 | 2013-12-25 | 盐城亚雄机械制造有限公司 | Annular preventer with internally-arranged circulating water cooling system |
| CN104653142A (en) * | 2013-11-22 | 2015-05-27 | Zp因特莱茨有限责任公司 | Spherical-annular blowout preventer having a plurality of pistons |
| CN104863539A (en) * | 2015-05-14 | 2015-08-26 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | Axial surrounding cooling structure of rotary blowout preventer |
| CN105443068A (en) * | 2015-12-16 | 2016-03-30 | 常熟市虹桥铸钢有限公司 | Blowout preventer piston |
| CN112360383A (en) * | 2021-01-12 | 2021-02-12 | 山东柏源技术有限公司 | Blowout preventer for petroleum drilling |
| CN112360383B (en) * | 2021-01-12 | 2021-04-02 | 山东柏源技术有限公司 | Blowout preventer for petroleum drilling |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080723 |
|
| CX01 | Expiry of patent term |