CN113236185A - High-temperature-resistant heat-insulation blowout preventer - Google Patents
High-temperature-resistant heat-insulation blowout preventer Download PDFInfo
- Publication number
- CN113236185A CN113236185A CN202110563960.9A CN202110563960A CN113236185A CN 113236185 A CN113236185 A CN 113236185A CN 202110563960 A CN202110563960 A CN 202110563960A CN 113236185 A CN113236185 A CN 113236185A
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- Prior art keywords
- rubber core
- cylinder sleeve
- pressing piece
- temperature
- cavity
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- 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.)
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- 238000009413 insulation Methods 0.000 title claims abstract description 22
- 238000003825 pressing Methods 0.000 claims abstract description 36
- 238000001816 cooling Methods 0.000 claims abstract description 31
- 239000010720 hydraulic oil Substances 0.000 claims description 11
- 230000003405 preventing effect Effects 0.000 claims description 9
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 7
- 241000191291 Abies alba Species 0.000 claims description 6
- 239000002826 coolant Substances 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 239000003292 glue Substances 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims 1
- 238000007789 sealing Methods 0.000 description 7
- 239000003921 oil Substances 0.000 description 5
- 230000000670 limiting effect Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 241000227287 Elliottia pyroliflora Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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
- E21B36/00—Heating, cooling or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones
- E21B36/003—Insulating arrangements
-
- 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
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
- E21B33/06—Blow-out preventers, i.e. apparatus closing around a drill pipe, e.g. annular blow-out preventers
-
- 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
- E21B36/00—Heating, cooling or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones
- E21B36/001—Cooling arrangements
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)
- Thermal Insulation (AREA)
Abstract
The application discloses a high-temperature-resistant heat-insulation blowout preventer, which comprises a tubular column base body, a cylinder sleeve, a pressing piece, a rubber core and a cooling device, wherein the cylinder sleeve, the pressing piece and the rubber core are all arranged in the tubular column base body, and a hydraulic control channel of the cylinder sleeve is positioned above the rubber core; the cylinder sleeve can move in the tubular column base body along the axial direction and prop against the pressing piece, so that the rubber core is pressed and sealed by the pressing piece; an accommodating cavity is formed in the abutting end of the cylinder sleeve, and when the cylinder sleeve abuts against the pressing piece, the pressing piece and the rubber core are located in the accommodating cavity; the cooling device is arranged to cool the rubber core. The high temperature resistant heat insulation blowout preventer provided by the embodiment of the application can reliably work under the high temperature condition, and normal operation of well control equipment is ensured.
Description
Technical Field
The application relates to but is not limited to a wellhead heat insulation technology, in particular to a high-temperature-resistant heat insulation blowout preventer.
Background
In recent years, the operation amount of high-temperature and ultrahigh-temperature wells and heavy oil thermal recovery wells is continuously increased, the well mouth temperature reaches more than 200 ℃, even reaches 350 ℃, the existing blowout preventer cannot bear the high temperature of more than 200 ℃, the high-temperature well mouth operation condition cannot be met, the operation mode of well repair and test after well killing and production suspension is long in period and high in cost.
Disclosure of Invention
The embodiment of the application provides a high temperature resistant heat insulation blowout preventer, can reliably work under the high temperature condition, guarantee well control equipment normal operating.
The embodiment of the application provides a high-temperature-resistant heat-insulation blowout preventer, which comprises a pipe column base body, a cylinder sleeve, a pressing piece, a rubber core and a cooling device, wherein the cylinder sleeve, the pressing piece and the rubber core are all arranged in the pipe column base body, and a hydraulic control channel of the cylinder sleeve is positioned above the rubber core;
the cylinder sleeve can move in the tubular column base body along the axial direction and prop against the pressing piece, so that the rubber core is pressed and sealed by the pressing piece; an accommodating cavity is formed in the abutting end of the cylinder sleeve, and when the cylinder sleeve abuts against the pressing piece, the pressing piece and the rubber core are located in the accommodating cavity;
the cooling device is arranged to cool the rubber core.
Compared with some technologies, the method has the following beneficial effects:
the high temperature resistant thermal-insulated blowout preventer that this application embodiment provided can effectively completely cut off the high temperature of well head below, avoids high temperature to cause the damage to well control equipment. The high-temperature-resistant heat-insulation blowout preventer is provided with a cooling device, so that the temperature of the rubber core is in a lower range under the condition of contacting with the high temperature of a wellhead, and the working reliability of the rubber core is ensured. And the hydraulic control channel of the cylinder sleeve is arranged above the rubber core, so that hydraulic oil is not influenced by underground high temperature, the cylinder sleeve can smoothly press the fastening piece, the rubber core is sealed, and the high-temperature-resistant heat-insulation blowout preventer has the capability of reliably working at the high temperature of 350 ℃.
Other features and advantages of the present application will be set forth in the description that follows.
Drawings
The accompanying drawings are included to provide a further understanding of the claimed subject matter and are incorporated in and constitute a part of this specification, illustrate embodiments of the subject matter and together with the description serve to explain the principles of the subject matter and not to limit the subject matter.
FIG. 1 is a first schematic structural diagram of a high temperature resistant, heat insulating and blowout preventing device according to an embodiment of the present application;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is a second schematic structural view (top view) of the high temperature resistant, heat insulating and blowout preventing apparatus according to the embodiment of the present application;
FIG. 4 is a cross-sectional view taken along line B-B of FIG. 3;
FIG. 5 is an enlarged view of the structure of portion C of FIG. 4;
FIG. 6 is an enlarged view of the structure of portion D of FIG. 4;
FIG. 7 is a third schematic structural view of the high temperature resistant, heat insulating and blowout preventing device according to the embodiment of the present application;
FIG. 8 is an enlarged view of the structure of section E of FIG. 7;
FIG. 9 is a schematic structural diagram of a cooling jacket according to an embodiment of the present application;
FIG. 10 is a fourth schematic structural view of the high temperature resistant, heat insulating and blowout preventing device according to the embodiment of the present application;
fig. 11 is a fifth structural schematic view of the high temperature resistant, heat insulating and blowout preventing device according to the embodiment of the present application.
Illustration of the drawings:
1-column base body, 11-upper shell, 12-upper flange, 13-lower shell, 14-lower flange, 15-bolt rod, 16-first cavity, 17-first opening, 18-second cavity, 19-second opening, 2-cylinder sleeve, 21-accommodating cavity, 211-abutting step, 22-bearing part, 3-pressing part, 31-copper sleeve, 311-matching part, 32-buffer cushion, 4-rubber core, 5-cooling cover, 51-inlet, 52-outlet, 6-buckle cap and 7-lining pipe.
Detailed Description
To make the objects, technical solutions and advantages of the present application more apparent, embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
The existing blowout preventer is provided with the compression structures at the upper end and the lower end of the sealing structure, wherein one compression structure is mainly used for coating the sealing structure, and the other compression structure compresses tightly. The dual-channel mode is easily affected by high-temperature oil in the well, the working mode is not reliable, the high temperature of the well mouth exceeding 200 ℃ cannot be borne, the high temperature can damage well control equipment, and operating personnel can be easily scalded.
The embodiment of the application provides a high-temperature-resistant heat-insulation blowout preventer, as shown in fig. 1 to 11, the high-temperature-resistant heat-insulation blowout preventer comprises a pipe column base body 1, a cylinder sleeve 2, a pressing piece 3, a rubber core 4 and a cooling device, wherein the cylinder sleeve 2, the pressing piece 3 and the rubber core 4 are all installed in the pipe column base body 1, and a hydraulic control channel of the cylinder sleeve 2 is positioned above the rubber core 4; the cylinder sleeve 2 can move in the tubular column base body 1 along the axial direction and is propped against the pressing piece 3, so that the rubber core 4 is pressed and sealed by the pressing piece 3; the abutting end of the cylinder sleeve 2 is provided with an accommodating cavity 21, and when the cylinder sleeve 2 abuts against the pressing piece 3, the pressing piece 3 and the rubber core 4 are positioned in the accommodating cavity 21; the cooling device is arranged to cool the glue core 4.
The high-temperature-resistant heat-insulation blowout preventer is arranged at the upper end of a Christmas tree at a wellhead, a rubber core 4 for sealing directly contacts high-temperature oil liquid in the well, the temperature of the rubber core 4 rises, the rubber core 4 can be damaged when the temperature is higher (for example, higher than 200 ℃), but the rubber core 4 is continuously cooled by a cooling device, so that the temperature of the rubber core 4 is still ensured to be in a safety range under the condition that the rubber core 4 contacts the high-temperature oil liquid in the well. And, because cooling device's setting, can prevent that oil pipe from taking out fast when rubbing with gluey core 4, lead to the condition that gluey core 4 temperature risees fast.
When the high-temperature-resistant heat-insulation blowout preventer acts, the cylinder sleeve 2 moves downwards to abut against the pressing part 3, and further the rubber core 4 is pressed, so that the rubber core 4 is tightly pressed and sealed, at the moment, the pressing part 3 and the rubber core 4 are positioned in the accommodating cavity 21 of the cylinder sleeve 2, namely, the cylinder sleeve 2 has a fixed limiting effect on the rubber core 4, and the blowout preventing effect is achieved. The position of the cylinder sleeve 2 is arranged above the rubber core 4, namely, the cylinder sleeve 2 can not directly contact high-temperature oil below a well head, so that the normal work of the cylinder sleeve 2 is not influenced by high temperature, and the high-temperature-resistant heat-insulation blowout preventer can normally work under the high-temperature condition of the well head.
The cylinder liner 2 serves two functions simultaneously: when the cylinder sleeve 2 moves downwards to abut against the pressing piece 3, the cylinder sleeve 2 enables the rubber core 4 to be pressed and sealed through the pressing piece 3; secondly, when the cylinder sleeve 2 pushes the pressing part 3 downwards, the cylinder sleeve 2 covers the rubber core 4, and the rubber core 4 is fixed and limited.
The high temperature resistant thermal-insulated blowout preventer that this application embodiment provided sets up 4 switching of single liquid accuse passageway two-way control rubber core, and accessible pneumatic cylinder control rubber core 4 seals coiled tubing realizes the well head and prevents spouting the function. The hydraulic control channel is positioned above the rubber core 4, so that the influence of high temperature on hydraulic oil is avoided, and the sealing opening degree is accurately controlled.
In an exemplary embodiment, as shown in fig. 8, an abutting step 211 is provided on a side wall of the accommodating cavity 21, a fitting portion 311 is provided on the pressing member 3, and the abutting step 211 abuts against the fitting portion 311, so that the rubber core 4 is pressed and sealed by the pressing member 3.
The descending in-process of cylinder liner 2, when butt step 211 supported the cooperation portion 311 who compresses tightly a 3, cylinder liner 2 continued down, would drive to compress tightly a 3 and compress tightly gluey core 4, made gluey core 4 sealed.
In an exemplary embodiment, as shown in fig. 1 to 11, the column base 1 includes an upper housing 11, an upper flange 12, a lower housing 13, and a lower flange 14; an upper flange 12 is arranged at the lower part of the upper shell 11, a lower flange 14 is arranged at the upper part of the lower shell 13, and the upper flange 12 and the lower flange 14 are connected through a bolt rod 15. The rubber core 4 is disposed between the upper case 11 and the lower case 13.
The upper flange 12 may be fixed to a lower portion of the upper housing 11 by means of screw coupling, and the lower flange 14 may be fixed to an upper portion of the lower housing 13 by means of screw coupling. The rubber core 4 is arranged between the upper shell 11 and the lower shell 13, the upper flange 12 and the lower flange 14 are connected through four bolt rods 15, the rubber core 4 can be directly taken down and installed from a gap between the adjacent bolt rods 15, and replacement of the rubber core 4 is facilitated. When the rubber core 4 needs to be replaced, hydraulic oil is injected into the second cavity 18 to push the cylinder sleeve 2 to move upwards, so that the rubber core 4 is exposed and can be replaced.
In an exemplary embodiment, as shown in fig. 9 to 11, the cooling device includes a cooling cover 5 hermetically sleeved outside the rubber core 4, and the cooling cover 5 is provided with an inlet 51 and an outlet 52 for circulating a cooling medium.
The cooling medium enters the cooling jacket 5 through the inlet 51, cools the rubber core 4, and then flows out through the outlet 52. The circulating cooling medium ensures a continuous cooling effect on the glue core 4. The cooling medium can be cooling water, and can also be other fluids for heat exchange.
It should be understood that, for the specific installation position of the cooling cover 5, besides only being sleeved outside the rubber core 4, the coverage of the cooling cover 5 can be increased appropriately, for example: the upper flange 12, the lower flange 14, the bolt rod 15 and the rubber core 4 are all covered by the cooling cover 5.
In an exemplary embodiment, the cooling jacket 5 comprises a first and a second semi-circular cover that snap together to form the cooling jacket 5.
The cooling cover 5 is installed in a clamping and buckling mode, and is convenient to install and disassemble. Sealing rubber can be arranged on the inner side of the cooling cover 5 to seal the cooling medium from leaking.
In an exemplary embodiment, as shown in fig. 5 and 8, a pressure-bearing portion 22 is provided on the cylinder liner 2, and the pressure-bearing portion 22 divides a hydraulic pressure chamber on the column base body 1 into a first chamber 16 and a second chamber 18; hydraulic oil enters the first cavity 16 through the first opening 17 to drive the cylinder sleeve 2 to move downwards; hydraulic oil enters the second cavity 18 through the second opening 19 to drive the cylinder sleeve 2 to move upwards; the hydraulic control passage includes a first opening 17, a first chamber 16, a second opening 19 and a second chamber 18. .
When the high-temperature-resistant heat-insulation blowout preventer starts to work, hydraulic oil enters the first cavity 16 through the first opening 17, the pressure of the hydraulic oil acts on the upper surface of the bearing part 22, the cylinder sleeve 2 is pressed to move downwards, and the rubber core 4 is pressed by the pressing part 3 to be sealed. After the high-temperature-resistant heat-insulation blowout preventer finishes working, hydraulic oil enters the second cavity 18 through the second opening 19, the pressure of the hydraulic oil acts on the lower surface of the pressure bearing part 22, the cylinder sleeve 2 is pressed to move upwards, and the pressure on the rubber core 4 is removed.
In an exemplary embodiment, the high temperature resistant, heat insulating and blowout preventing device further comprises a temperature measuring device configured to detect the temperature of the upper region of the gel core 4 and the lower region of the gel core 4.
The temperature of the upper area and the lower area of the high-temperature-resistant heat-insulating blowout preventer can be monitored in real time through the temperature measuring device, and the safe operation of the high-temperature-resistant heat-insulating blowout preventer is ensured.
In an exemplary embodiment, as shown in fig. 2, the pressing member 3 includes a copper sheath 31, and a cushion pad 32 disposed between the copper sheath 31 and the rubber core 4; the fitting portion 311 is provided on the copper bush 31.
Set up blotter 32 between copper sheathing 31 and gluey core 4, avoid copper sheathing 31 directly to extrude gluey core 4 to cause the damage to gluey core 4.
In an exemplary embodiment, the lower part of the lower housing 13 is further provided with a connection part for connecting with a christmas tree.
The lower shell 13 can be connected with the Christmas tree through the buckle cap 6, so that the disassembly and the assembly are convenient. Of course, the connection part can also adopt a flange form, and the lower shell 13 is connected with the Christmas tree through the flange, so that the connection safety and reliability are improved.
The high temperature resistant thermal-insulated blowout preventer that this application embodiment provided not only can satisfy the operation requirement while producing of high temperature wellhead, can also show the harm that reduces high temperature to well control equipment, improves the life of well control equipment, reduces the operation risk. The high-temperature-resistant heat-insulation blowout preventer adopts a mode of laterally loading and unloading the rubber core 4, so that the rubber core 4 can be quickly replaced.
The high-temperature hydraulic control heat insulation device is arranged between the well control equipment and the Christmas tree, the self sealing of the high-temperature hydraulic control heat insulation device can play a role in blowout prevention, the sealing water cooling function is arranged on the outer body of the device, the effects of blowout prevention and heat insulation are effectively played, the well control equipment meets the high-temperature wellhead operation conditions, and the safety of well control operation is guaranteed.
In the description of the present application, it is to be noted that the directions or positional relationships indicated by "upper", "lower", "one end", "one side", and the like are based on the directions or positional relationships shown in the drawings, and are only for convenience of describing the present application and simplifying the description, and do not indicate or imply that the structures referred to have a specific direction, are configured and operated in a specific direction, and thus, cannot be construed as limiting the present application.
In the description of the embodiments of the present application, unless expressly stated or limited otherwise, the terms "connected," "mounted," and "mounted" are to be construed broadly, e.g., the term "connected" may be a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
The embodiments described herein are exemplary rather than limiting and it will be apparent to those of ordinary skill in the art that many more embodiments and implementations are possible within the scope of the embodiments described herein. Although many possible combinations of features are shown in the drawings and discussed in the detailed description, many other combinations of the disclosed features are possible. Any feature or element of any embodiment may be used in combination with or instead of any other feature or element in any other embodiment, unless expressly limited otherwise.
The present application includes and contemplates combinations of features and elements known to those of ordinary skill in the art. The embodiments, features and elements that have been disclosed in this application may also be combined with any conventional features or elements to form unique aspects as defined by the claims. Any feature or element of any embodiment may also be combined with features or elements from other aspects to form another unique aspect as defined by the claims. Thus, it should be understood that any of the features shown and/or discussed in this application may be implemented alone or in any suitable combination. Accordingly, the embodiments are not limited except as by the appended claims and their equivalents. Furthermore, various modifications and changes may be made within the scope of the appended claims.
Claims (10)
1. A high-temperature-resistant heat-insulation blowout preventer is characterized by comprising a tubular column base body, a cylinder sleeve, a pressing piece, a rubber core and a cooling device, wherein the cylinder sleeve, the pressing piece and the rubber core are all arranged in the tubular column base body, and a hydraulic control channel of the cylinder sleeve is positioned above the rubber core;
the cylinder sleeve can move in the tubular column base body along the axial direction and prop against the pressing piece, so that the rubber core is pressed and sealed by the pressing piece; an accommodating cavity is formed in the abutting end of the cylinder sleeve, and when the cylinder sleeve abuts against the pressing piece, the pressing piece and the rubber core are located in the accommodating cavity;
the cooling device is arranged to cool the rubber core.
2. The high-temperature-resistant, heat-insulating and blowout-preventing device as claimed in claim 1, wherein an abutting step is provided on a side wall of the accommodating cavity, and a matching portion is provided on the pressing member, and the abutting step abuts against the matching portion, so that the rubber core is pressed and sealed by the pressing member.
3. The apparatus of claim 2, wherein the string substrate comprises an upper housing, an upper flange, a lower housing, and a lower flange;
the upper flange is arranged on the lower portion of the upper shell, the lower flange is arranged on the upper portion of the lower shell, and the upper flange is connected with the lower flange through a bolt rod.
4. The apparatus of claim 3, wherein the glue cartridge is disposed between the upper housing and the lower housing.
5. The high temperature resistant, thermal insulating and blowout preventing device according to claim 4, wherein the cooling device comprises a cooling jacket sealed and arranged outside the rubber core, and the cooling jacket is provided with an inlet and an outlet for cooling medium circulation.
6. The apparatus of claim 5, wherein the cooling jacket comprises a first and second semi-circular jacket that snap fit together to form the cooling jacket.
7. The high-temperature-resistant, heat-insulating and blowout-preventing device as claimed in any one of claims 1 to 6, wherein a pressure-bearing portion is arranged on the cylinder liner, and the pressure-bearing portion divides a hydraulic cavity on the tubular column base body into a first cavity and a second cavity;
hydraulic oil enters the first cavity through the first opening and drives the cylinder sleeve to move downwards; hydraulic oil enters the second cavity through the second opening to drive the cylinder sleeve to move upwards;
the hydraulic control passage includes the first opening, the first cavity, the second opening, and the second cavity.
8. The apparatus of any of claims 1 to 6, further comprising a temperature measuring device configured to detect temperatures of the upper and lower regions of the gel core.
9. The high temperature resistant, thermal insulating and blowout preventing device according to any one of claims 2 to 6, wherein the compression member comprises a copper sleeve and a cushion pad disposed between the copper sleeve and the rubber core;
the matching part is arranged on the copper sleeve.
10. The apparatus according to any one of claims 3 to 6, wherein the lower casing is further provided with a connection for connecting to a Christmas tree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110563960.9A CN113236185A (en) | 2021-05-24 | 2021-05-24 | High-temperature-resistant heat-insulation blowout preventer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110563960.9A CN113236185A (en) | 2021-05-24 | 2021-05-24 | High-temperature-resistant heat-insulation blowout preventer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113236185A true CN113236185A (en) | 2021-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110563960.9A Pending CN113236185A (en) | 2021-05-24 | 2021-05-24 | High-temperature-resistant heat-insulation blowout preventer |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1254052A (en) * | 1999-11-24 | 2000-05-24 | 四川石油管理局 | Drilling rotary blowout preventer |
| US20110024120A1 (en) * | 2009-07-29 | 2011-02-03 | Jared Jensen | Method of servicing high temperature wells |
| CN106703738A (en) * | 2017-02-24 | 2017-05-24 | 中国石油大学(北京) | Coiled tubing blowout preventing box |
| CN109025905A (en) * | 2018-10-13 | 2018-12-18 | 中石化石油工程技术服务有限公司 | High temperature and pressure test pit shaft circulation temperature lowering sealing container |
| CN208396678U (en) * | 2018-06-20 | 2019-01-18 | 烟台杰瑞石油装备技术有限公司 | A kind of duplex single open-door blowout prevention box |
| CN210714561U (en) * | 2019-07-02 | 2020-06-09 | 中国石油天然气股份有限公司 | Well control blowout preventer for rotary operation in well repair |
-
2021
- 2021-05-24 CN CN202110563960.9A patent/CN113236185A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1254052A (en) * | 1999-11-24 | 2000-05-24 | 四川石油管理局 | Drilling rotary blowout preventer |
| US20110024120A1 (en) * | 2009-07-29 | 2011-02-03 | Jared Jensen | Method of servicing high temperature wells |
| CN106703738A (en) * | 2017-02-24 | 2017-05-24 | 中国石油大学(北京) | Coiled tubing blowout preventing box |
| CN208396678U (en) * | 2018-06-20 | 2019-01-18 | 烟台杰瑞石油装备技术有限公司 | A kind of duplex single open-door blowout prevention box |
| CN109025905A (en) * | 2018-10-13 | 2018-12-18 | 中石化石油工程技术服务有限公司 | High temperature and pressure test pit shaft circulation temperature lowering sealing container |
| CN210714561U (en) * | 2019-07-02 | 2020-06-09 | 中国石油天然气股份有限公司 | Well control blowout preventer for rotary operation in well repair |
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Application publication date: 20210810 |
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