CN203499622U - Annular preventer used in low temperature - Google Patents
Annular preventer used in low temperature Download PDFInfo
- Publication number
- CN203499622U CN203499622U CN201320627605.4U CN201320627605U CN203499622U CN 203499622 U CN203499622 U CN 203499622U CN 201320627605 U CN201320627605 U CN 201320627605U CN 203499622 U CN203499622 U CN 203499622U
- Authority
- CN
- China
- Prior art keywords
- top cover
- steam heating
- heating band
- low temperature
- annular preventer
- 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
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- 238000010438 heat treatment Methods 0.000 claims abstract description 29
- 239000003292 glue Substances 0.000 claims description 15
- 229920006395 saturated elastomer Polymers 0.000 claims description 5
- 238000004321 preservation Methods 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 3
- 229920006247 high-performance elastomer Polymers 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims description 2
- 210000003205 muscle Anatomy 0.000 claims description 2
- 238000007789 sealing Methods 0.000 abstract description 13
- 229920001971 elastomer Polymers 0.000 abstract description 6
- 239000005060 rubber Substances 0.000 abstract description 6
- 239000003921 oil Substances 0.000 description 9
- 239000010720 hydraulic oil Substances 0.000 description 6
- 238000005553 drilling Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000005336 cracking Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000004087 circulation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
Images
Landscapes
- Pressure Vessels And Lids Thereof (AREA)
Abstract
The utility model discloses an annular preventer used in a low temperature. The annular preventer comprises a shell, a piston, a supporting ring, a top cover and a spherical rubber core. The shell and the top cover are connected through a plurality of studs and are fixed through a plurality of cap nuts. The supporting ring is mounted on the upper end face of the shell, and the internal diameter of the supporting ring is matched with the piston in a sealing mode. The annular preventer used in the low temperature is characterized in that an inner cavity of the top cover is hemispherical, the inner cavity of the top cover is filled with the spherical rubber core, the spherical rubber core is closed and opened depending on drive supporting of the piston, a first steam heating band is arranged at the conical surface position of the top cover, a second steam heating band is arranged on the outer circle of the shell, and the first steam heating band is communicated with the second steam heating band. Through the mode, the preventer is low in use cost, simple in operation, convenient to maintain and suitable for being used in an ultralow temperature severe cold environment.
Description
Technical field
The utility model relates to oil-well drilling equipment blowout prevention technology field, particularly relates to the annular preventer that a kind of low temperature is used.
Background technology
In the DRILLING APPLICATION of severe cold area (ground such as Russia, Xinjiang), the hydraulic oil of preventer and lubrication oil solidify because of the cause of low temperature and lost efficacy, and low temperature environment also affects very large on the life-span of rubber seal at present.Conventional electrical heat tracing mode is mainly by metal heater element, to be aided with heat resistant rubber to disperse heat, realizes the heat insulation effect of preventer; But it is high that it will reach requirement of explosion proof cost, and be unfavorable for drilling safety control.
Utility model content
The technical problem that the utility model mainly solves is to provide the annular preventer that a kind of low temperature is used, and this preventer use cost severe cold environment low, simple to operate, easy to maintenance, that be applicable to ultralow temperature is used.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: the annular preventer that provides a kind of low temperature to use, comprise: housing, piston, support ring, top cover and spherical glue core, described housing is to be connected by a plurality of studs with top cover, and fixes with a plurality of acorn nuts; Support ring is arranged on the upper surface of housing, and the internal diameter of support ring coordinates with piston seal; The inner chamber of described top cover is hemispherical, inner chamber at top cover is equipped with spherical glue core, the closure of described spherical glue core relies on the driving of piston to support, and the conical surface position of described top cover is provided with the first Steam Heating band, and the outer ring of described housing is provided with the second Steam Heating band; Described the first Steam Heating band is connected with the second Steam Heating band.
In preferred embodiment of the utility model, for convenience of on-site hoisting, the both sides of described housing are provided with lifting hanger and the shackle peculiar to vessel of lifting use.
In preferred embodiment of the utility model; for can effectively protect hydraulic line drillng operation and when lifting unlikely cracking between the teeth touch; prevent the leakage of hydraulic oil, effectively extend the application life of hydraulic line, the oil inlet and outlet place of described housing (1) is provided with protective cradle (6).
In preferred embodiment of the utility model, described the first Steam Heating band and the second Steam Heating band need pass to 300 ℃ of pressure, and the saturated vapor of 0.5 ~ 1.5Mpa gives annular preventer to carry out Heat preservation.
The annular preventer that the utility model low temperature is used compared with prior art, has the following advantages:
1, the built-in Steam Heating band of preventer, without extras, easy to use, safe and reliable except steam access equipment, cost is low;
2, steam is directly in preventer internal heat transfer, and heat conduction area is wider, and heat-radiating properties is excellent;
3, steam pipework joint uses the NPT sealing thread of standard to connect, and uses extensively easy accessibility;
4, control oil pipe line installs protector additional, can prevent from cracking between the teeth and touching when drillng operation or lifting;
5, support ring installs fastening devices additional, in the time of can preventing from dismantling and top cover be bonded together.
Accompanying drawing explanation
Fig. 1 is the main pseudosection of the annular preventer used of the utility model low temperature;
Fig. 2 is the outline drawing of the annular preventer used of the utility model low temperature;
Fig. 3 is the annular preventer top view that the utility model low temperature is used;
Fig. 4 is the partial sectional view at the place of A-A shown in Fig. 3.
The specific embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail, thereby so that advantage of the present utility model and feature can be easier to be it will be appreciated by those skilled in the art that, protection domain of the present utility model is made to more explicit defining.
Refer to Fig. 1 to Fig. 4, the utility model embodiment comprises: the annular preventer that a kind of low temperature is used, comprise: housing (1), piston (2), support ring (3), top cover (4) and spherical glue core (5), housing (1) is to be connected by a plurality of studs (7) with top cover (4), and fixing with a plurality of acorn nuts (8), support ring (3) is arranged on the upper surface of housing (1), the internal diameter of support ring (3) and piston (2) are sealed and matched, the inner chamber of top cover (4) is hemispherical, inner chamber at top cover (4) is equipped with spherical glue core (5), spherical glue core (5) is by arch support muscle (51) and high-performance rubber (52) sulfidization molding, the closure of spherical glue core (5) relies on the driving of piston (2) to support, the conical surface position of top cover (4) is provided with the first Steam Heating band (100), the outer ring of housing (1) is provided with the second Steam Heating band (200), the first Steam Heating band and the second Steam Heating band need pass to 300 ℃ of pressure, the saturated vapor of 0.5 ~ 1.5Mpa gives annular preventer to carry out Heat preservation, the first Steam Heating band (100) is connected with the second Steam Heating band (200).
Furtherly, the both sides of described housing (1) are provided with lifting hanger (17) and the shackle peculiar to vessel (18) of lifting use; The oil inlet and outlet place of housing (1) is provided with protective cradle (6).
In the present embodiment, the section of described piston (2) is " Z " font, piston (2) is arranged in housing (1) inner chamber, the outer ring of piston (2) coordinates with housing (1) inner chamber, and be provided with two seals (21,23) at piston (2) external diameter, an and wear ring (22), the inner ring of piston (2) coordinates with the interior barrel dliameter of housing (1), and on housing (1), be provided with upper sealing (14) and lower seal (16), and one wear ring (15), wherein upper sealing (14) is pressed for sealed well, and lower seal (16) is for sealing oil circuit hydraulic pressure; Piston (2) is hydraulic pressure opening chamber with the closed space that housing (1) forms, and hydraulic oil can be entered and be opened chamber by pipeline, promotes piston (2) up, and drives spherical glue core (5) closed to realize shut-in well.
The internal diameter of described support ring (3) coordinates with piston (2), and be provided with upper sealing (32) and lower seal (35) in support ring (3) inner radius, and a wear ring (34), wherein upper sealing (32) is pressed for sealed well, and lower seal (35) is for sealing oil circuit hydraulic pressure; Support ring (3) is provided with first O shape sealing (33) with the cooperation place of housing (1), and support ring (3) is also provided with second O shape sealing (31) with the cooperation place of top cover (4), and these twice O shape sealing (33,31) is for sealing saturated vapour; Support ring (3), piston (2) are that hydraulic pressure opens and closes chamber with the closed space that housing (1) forms, and hydraulic oil can be entered and be closed chamber by pipeline, promotes piston (2) descending, drives spherical glue core (5) to open, and realization drives a well.
The outer ring of the conical surface position of described top cover (4) and housing (1) is also provided with two steam inlets (11,41), two steam (vapor) outlets (12,42); The first Steam Heating band (100) and the second Steam Heating band (200) are connected by the steam way (400) connecting, and form new heating region (300); Housing (1) is provided with steam seal (13) with the connectivity part of top cover (4), prevents steam leakage; During drillng operation, by NPT 3/4 interface, by high temperature saturated vapour access (11,41), and by pipeline access two steam (vapor) outlets (12,42), form the steam channel of two circulations.The heat of high-temperature steam will be radiated the first Steam Heating band (100), the second Steam Heating band (200) and new heating region (300) and form three regions simultaneously, thereby realize the insulation of preventer.
As shown in Figure 2, the connecting interface of oil circuit control (500) and (600) are arranged on housing (1) the same side, and wherein connecting interface (600) is connected with oil circuit unlatching chamber, and connecting interface (500) is closed chamber with oil circuit and is connected; While needing closing well in drillng operation, from the hydraulic oil of control system output, from connecting interface (500), enter and close chamber, and promote piston stroking upward, force spherical glue core (5) to move upward along sphere, restriction operation due to top cover (4), brace rod (51) is drawn close mutually, and rubber is therebetween pressed to well head center, realizes drilling tool sealing or full shut-in well mouthful.In the time of need to driving a well, from the hydraulic oil of control system output, from connecting interface (600), enter and open chamber, promote descent of piston, spherical glue core (5) is unclamped and swell, resile, realization drives a well.
As shown in Figure 4, between housing (1) and top cover (4), be provided with a plurality of briquettings (9), by soket head cap screw (10), support ring (3) is fixing, housing in the time of can preventing from dismantling (1) is bonded together with top cover (4).
The utility model has advantages of that for the annular preventer of low temperature use cost is low, simple to operate, easy to maintenance, heat-insulating property is excellent, and the material of the main seal using in the present embodiment is hydrogenated nitrile-butadiene rubber, resistance to H
2s performance and resistance to low temperature are strong.
The foregoing is only embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or conversion of equivalent flow process that utilizes the utility model manual and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (5)
1. the annular preventer that low temperature is used, comprising: housing, piston, support ring, top cover and spherical glue core, and described housing is to be connected by a plurality of studs with top cover, and fixes with a plurality of acorn nuts; Described support ring is arranged on the upper surface of housing, the internal diameter of support ring coordinates with piston seal, it is characterized in that: the inner chamber of described top cover is hemispherical, inner chamber at top cover is equipped with spherical glue core, the closure of described spherical glue core relies on the driving of piston to support, the conical surface position of described top cover is provided with the first Steam Heating band, and the outer ring of described housing is provided with the second Steam Heating band; Described the first Steam Heating band is connected with the second Steam Heating band.
2. the annular preventer that low temperature according to claim 1 is used, is characterized in that: the both sides of described housing are provided with lifting hanger and the shackle peculiar to vessel of lifting use.
3. the annular preventer that low temperature according to claim 1 is used, is characterized in that: the oil inlet and outlet place of described housing is provided with protective cradle.
4. the annular preventer that low temperature according to claim 1 is used, is characterized in that: described spherical glue core is by arch support muscle and high-performance rubber sulfidization molding.
5. the annular preventer that low temperature according to claim 1 is used, is characterized in that: described the first Steam Heating band and the second Steam Heating band need pass to 300 ℃ of pressure, and the saturated vapor of 0.5 ~ 1.5Mpa gives annular preventer to carry out Heat preservation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320627605.4U CN203499622U (en) | 2013-10-12 | 2013-10-12 | Annular preventer used in low temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320627605.4U CN203499622U (en) | 2013-10-12 | 2013-10-12 | Annular preventer used in low temperature |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203499622U true CN203499622U (en) | 2014-03-26 |
Family
ID=50330611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320627605.4U Expired - Lifetime CN203499622U (en) | 2013-10-12 | 2013-10-12 | Annular preventer used in low temperature |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203499622U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2742804C1 (en) * | 2020-07-07 | 2021-02-10 | Юрий Иванович Князев | Universal hydraulic preventor |
| CN114396241A (en) * | 2022-03-28 | 2022-04-26 | 四川新为橡塑有限公司 | Double-layer sealed spherical rubber core and annular blowout preventer |
| CN115898319A (en) * | 2023-02-24 | 2023-04-04 | 四川新为橡塑有限公司 | Compound annular preventer of two rubber cores |
-
2013
- 2013-10-12 CN CN201320627605.4U patent/CN203499622U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2742804C1 (en) * | 2020-07-07 | 2021-02-10 | Юрий Иванович Князев | Universal hydraulic preventor |
| CN114396241A (en) * | 2022-03-28 | 2022-04-26 | 四川新为橡塑有限公司 | Double-layer sealed spherical rubber core and annular blowout preventer |
| CN114396241B (en) * | 2022-03-28 | 2022-06-10 | 四川新为橡塑有限公司 | Double-layer sealed spherical rubber core and annular blowout preventer |
| CN115898319A (en) * | 2023-02-24 | 2023-04-04 | 四川新为橡塑有限公司 | Compound annular preventer of two rubber cores |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230321 Address after: No. 16, Xihenggang Street, Yangchenghu Town, Xiangcheng District, Suzhou City, Jiangsu Province, 215000 Patentee after: Suzhou Dawson Drilling and Production Equipment Co.,Ltd. Address before: 215137 Taiping Zhen Xingtai Road, Xiangcheng District, Suzhou City, Jiangsu Province Patentee before: SUZHOU DOUSON DRILLING & PRODUCTION EQUIPMENT Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140326 |
|
| CX01 | Expiry of patent term |