CN112627760A - Blowout preventer and using method thereof - Google Patents
Blowout preventer and using method thereof Download PDFInfo
- Publication number
- CN112627760A CN112627760A CN202011502966.7A CN202011502966A CN112627760A CN 112627760 A CN112627760 A CN 112627760A CN 202011502966 A CN202011502966 A CN 202011502966A CN 112627760 A CN112627760 A CN 112627760A
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- pressure sensing
- trigger
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- piece
- shell
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- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000007789 sealing Methods 0.000 claims abstract description 32
- 238000005553 drilling Methods 0.000 claims abstract description 12
- 230000005484 gravity Effects 0.000 claims description 5
- 238000010008 shearing Methods 0.000 claims description 3
- 230000001174 ascending effect Effects 0.000 claims description 2
- 230000000712 assembly Effects 0.000 claims description 2
- 238000000429 assembly Methods 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 239000003292 glue Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- 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
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- 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)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The invention relates to a blowout preventer and a using method thereof, comprising a shell, a fixed assembly, a closed assembly and a control assembly; the fixed assembly is arranged on the outer side of the shell and used for locking the shell and the ground around the wellhead, the sealing assembly is arranged on the shell and used for closing the wellhead, and the control assembly is connected with the sealing assembly and used for controlling the sealing assembly to act; the control assembly includes locking piece, pressure sensing piece and trigger the closed chamber below has been seted up the pressure sensing hole, pressure sensing piece and trigger all install in the pressure sensing hole, the locking piece install in pressure sensing hole drill way will the pressure sensing hole is sealed, the trigger with the closed assembly is connected, and this application can be simply convenient fix at the well drilling well head, removes the locking back at the staff, monitors well pressure by oneself, and when it reached predetermined critical point, seals the well drilling fast, prevents to take place the blowout to its security has been promoted.
Description
Technical Field
The invention belongs to the technical field of oil exploration, and particularly relates to a blowout preventer and a using method thereof.
Background
The blowout preventer is used for closing a well mouth in the operation processes of oil testing, well repairing, well completion and the like to prevent blowout accidents, integrates the full sealing function and the half sealing function into a whole, has the characteristics of simple structure, easy operation, high pressure resistance and the like, and is a safe well mouth sealing device for preventing blowout commonly used in oil fields.
When drilling petroleum well, it is installed on the wellhead casing head to control the well-blowing device of high-pressure oil, gas and water. When the oil gas pressure in the well is very high, the blowout preventer can close (close) the well mouth. When heavy mud is pressed in the drill pipe, the four-way valve is arranged below the gate plate, mud invaded by gas can be replaced, and the pressure of a liquid column in the well is increased so as to press the ejection of high-pressure oil gas.
The existing blowout preventer usually needs manual work to operate nearby in the operation process, but the condition in the well is complex, and nearby personnel are dangerous when the pressure is too high.
Disclosure of Invention
The invention aims to provide a blowout preventer, which can enable a worker to automatically control the well to be sealed and closed according to the conditions in a well after unlocking the blowout preventer in advance.
In order to solve the problems in the background art, the invention is realized by the following technical scheme:
a blowout preventer comprises a housing, a fixed assembly, a sealing assembly and a control assembly;
the fixed assembly is arranged on the outer side of the shell and used for locking the shell and the ground around the wellhead, the sealing assembly is arranged on the shell and used for closing the wellhead, and the control assembly is connected with the sealing assembly and used for controlling the sealing assembly to act;
the control assembly comprises a locking piece, a pressure sensing piece and a trigger, a pressure sensing hole is formed below the sealing cavity, the pressure sensing piece and the trigger are both installed in the pressure sensing hole, the locking piece is installed on the orifice of the pressure sensing hole to seal the pressure sensing hole, and the trigger is connected with the sealing assembly.
As a further description of the invention: the pressure sensing hole is a groove which is obliquely arranged, the orifice of the pressure sensing hole is positioned at the lowest part of the groove body, the edge of the pressure sensing piece is abutted against the inner wall of the pressure sensing hole, the shape of the pressure sensing piece is larger than that of the orifice of the pressure sensing hole, the pressure sensing piece is positioned at the lowest part of the pressure sensing hole in a normal state, when the external pressure is overlarge, the pressure sensing piece can gradually move upwards along the pressure sensing hole, and the trigger is arranged at the highest part of the pressure sensing hole and is connected with the sealing component.
As a further description of the invention: the locking piece includes rubber buffer, stay cord and lock ring, the rubber buffer with sense pressure hole drill way interference connection, stay cord one end with the rubber buffer is connected, and the other end extends to the casing top with the lock ring is connected the casing top be provided with connect the lock ring complex go-between.
As a further description of the invention: the seal assembly comprises a seal cavity, a gate plate and a driving device, the seal cavity is arranged on the shell, the seal cavity comprises a storage channel and a bearing channel, the storage channel is located on the left side of the shell, the bearing channel is symmetrically arranged on the right side of the shell, the shell is provided with the gate plate and the driving device, the driving device is arranged in the storage channel, the driving device is connected with the trigger, and when the driving device is activated, the driving device pushes one end of the gate plate to pass through the shell, so that the shell falls into the bearing channel, and a well mouth is sealed.
As a further description of the invention: as a further description of the invention: and one end of the flashboard close to the bearing channel is provided with a cutting edge for shearing a pipe section passing through the drilling hole.
As a further description of the invention: the trigger includes dog and trigger piece, the dog set up in the pressure sensing hole, be located the pressure sensing hole is the top, pressure sensing hole open-top with storage channel intercommunication, trigger piece is located the dog top, stretches into in the storage channel, block the flashboard the pressure sensing hole sets up the position of dog and has seted up the retaining groove, dog one end stretches into in the retaining groove, the other end is in block trigger piece in the pressure sensing hole, dog one side up is from keeping away from one side in retaining groove to the one side that is close to the retaining groove slope setting gradually, simultaneously the dog stretches into the one end in retaining groove and is connected with the spring with the retaining groove inner wall, the normal condition of spring can be with a part release retaining groove of dog.
As a further description of the invention: the shell comprises two matched semi-circular tube bodies and abutting plates arranged on the outer sides of the semi-circular tube bodies, the two semi-circular tube bodies are fixed through hoops to form a circular tube with a hole in the center, and the fixing assemblies are mounted on the outer sides of the two semi-circular tube bodies.
As a further description of the invention: the fixing assembly comprises a fixing rod, a connecting piece and a fixing ring, wherein the connecting piece and the fixing ring are arranged at two ends of the fixing rod respectively, the connecting piece is rotatably connected with the semicircular pipe body, and the fixing ring is fixed with the ground around the wellhead through an anchor rod.
As a further description of the invention: the trigger can also be an electromagnetic switch, the trigger is connected with the driving device, and the controller is wirelessly connected with the driving device and used for controlling the remote closing assembly of a worker.
The invention also aims to provide a using method of the blowout preventer, which is convenient for workers to use the blowout preventer.
In order to solve the problems in the background art, the invention is realized by the following technical scheme: the method comprises the following steps:
step S1: fixing the two semicircular pipe bodies to form a circular pipe with a hole in the center, and then placing the circular pipe into a wellhead;
step S2: fixing the shell and the ground around the wellhead by using an anchor rod through a fixing component arranged on the outer sides of the two semicircular pipe bodies;
step S3: the rubber plug is pulled out from the orifice of the pressure sensing hole through the pull rope, and the sealing of the pressure sensing hole is released;
step S4: the pressure sensing hole is communicated with the environment in the well, the pressure sensing piece arranged in the pressure sensing hole gradually moves upwards along with the lifting of the gravity in the well, and the pressure sensing piece just contacts with the trigger when reaching a set critical point;
step S5: the trigger activates the driving device, and the driving device pushes out the flashboard to seal the wellhead;
step S6: the actuation means is activated by the controller in the event of a trigger failure or other need to remotely operate the blowout preventer to seal.
Compared with the prior art, the invention has the following beneficial technical effects:
1. when the well drilling finishes, but still need to carry out some during operation near the well drilling, can not directly seal the well drilling, but the staff is comparatively dangerous around it, and this application can be simply convenient fix at the well drilling well head, removes the locking back at the staff simultaneously, monitors pressure in the well by oneself, when it reaches predetermined critical point, seals the well drilling fast, prevents to take place the blowout to its security has been promoted.
2. The device is simple in structure, convenient for workers to operate and low in cost.
3. This application is when the trigger breaks down, and the staff can seal the well drilling through the controller, provides the reserve scheme of assurance safety to its security has been promoted.
4. This application can be installed under the condition of need not the shut-in well, keeps its lock-out state, and the staff drills a well, can not monitor the internal pressure of well, and seals the well, when needs, pulls out the rubber buffer through the stay cord, and it can to relieve lock state, and is more convenient to its convenience has been promoted.
Drawings
FIG. 1 is a schematic diagram of the overall configuration of a blowout preventer of the present invention;
FIG. 2 is a schematic cross-sectional view taken along A-A of FIG. 1;
FIG. 3 is a partially enlarged schematic view of a flip-flop of the present invention;
FIG. 4 is a flow chart illustrating a method of using a blowout preventer of the present invention.
Description of the reference numerals
1. A housing; 2. hooping; 3. a rubber plug; 4. pulling a rope; 5. buckling rings; 6. a connecting ring; 7. a pressure sensing hole; 8. a pressure sensing piece; 9. a stopper; 10. a baffle groove; 11. a trigger; 12. a storage channel; 13. a receiving channel; 14. a shutter plate; 15. A drive device; 16. a butt joint plate; 17. fixing the rod; 18. and (4) fixing the ring.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a detailed description of the present invention will be given below with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the orientation is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it is also to be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1-3, a blowout preventer includes a housing, a securing assembly, a closure assembly, and a control assembly.
Specifically, the casing includes two semi-circular bodys that agree with and the butt plate that sets up in the semi-circular bodys outside, two the semi-circular bodys is fixed through the staple bolt, forms the foraminiferous circular pipe in center, and its semi-circular bodys is metal material, two all install in the semi-circular bodys outside fixed subassembly, fixed subassembly includes the dead lever connecting piece and the retaining ring that set up respectively at the both ends of dead lever, the connecting piece with the semi-circular bodys rotates to be connected, fixed ring passes through the stock and fixes on with well head peripheral ground, and the connecting piece can be pin structure, and its fixed ring is the ring shape plate spare of a central trompil, and the stock can pass its central hole and fix it with ground.
The sealing assembly comprises a sealing cavity, a flashboard and a driving device, the sealing cavity is arranged on the shell, the sealing cavity comprises a storage channel and a bearing channel, gaskets are arranged in the storage channel and the bearing channel, the gaskets enable the inner walls of the two channels to be in interference fit with the flashboard, the storage channel is positioned on the left side of the shell, the bearing channel is symmetrically arranged on the right side of the shell, the flashboard and the driving device are arranged in the storage channel, the driving device is connected with the trigger, when the driving device is activated, one end of the flashboard is pushed to penetrate through the shell to fall into the bearing channel to seal a well mouth, one end of the flashboard close to the bearing channel is provided with a cutting edge for shearing a pipe section passing through a drilling hole, and quick sealing glue is arranged in the bearing channel, after the flashboard falls into the receiving channel, the gap between the flashboard and the receiving channel can be rapidly filled to be sealed, and the driving device has a plurality of choices, and can be a spring in a compressed state, an air bag filled with air or a cavity in a high-pressure state and the like.
The control component comprises a locking piece, a pressure sensing piece and a trigger, a pressure sensing hole is formed below the closed cavity, the pressure sensing piece and the trigger are arranged in the pressure sensing hole, the locking piece is arranged at the orifice of the pressure sensing hole to seal the pressure sensing hole, the trigger is connected with the driving device, the pressure sensing hole can be a circular groove which is obliquely arranged or a circular groove which gradually rises in a circular ring shape, but the orifice of the pressure sensing hole is positioned at the lowest part of the groove body, the radius of the gravity ball is larger than that of the orifice of the pressure sensing hole, the pressure sensing piece can be a gravity ball or a rubber block, the edge of the pressure sensing piece is abutted against the inner wall of the pressure sensing hole to completely separate the inside of the pressure sensing hole into two areas, so that the pressure sensing piece is positioned at the lowest part of the pressure sensing hole under a normal state and can be gradually pushed upwards along the pressure sensing hole in the process of gradually rising of the pressure in the well, the trigger is arranged at the top of the pressure sensing hole and connected with the driving device, the stroke of the trigger is calculated, when the pressure in the well reaches a critical point, the pressure sensing piece in the trigger just contacts with the trigger, so that the driving device is activated, the driving device pushes out the gate to close the well mouth, the type of the trigger is determined by the type of the driving device, the trigger and the driving device are used in a matched mode, for example, when the driving device is a spring in a compression state, the trigger can be a stop block for stopping the action of the gate plate, when the driving device is an air bag filled with air, the trigger can be a baffle plate for sealing the storage channel, and when the driving device is equipment such as a hydraulic rod, the trigger can be selected to be an electromagnetic switch and the like.
The trigger includes dog and trigger piece, the dog set up in the pressure sensing hole, be located the pressure sensing hole is the top, pressure sensing hole open-top with storage channel intercommunication, the trigger piece is located the dog top, stretches into in the storage channel, stop the flashboard the pressure sensing hole sets up the position of dog and has seted up the retaining groove, dog one end stretches into in the retaining groove, the other end is in block the trigger piece in the pressure sensing hole, dog one side ascending is followed one side of keeping away from the retaining groove and is set up to the one side that is close to the retaining groove slope gradually downwards, simultaneously the dog stretches into the one end in retaining groove and is connected with the spring with retaining groove inner wall, the normal condition of spring can be with some release retaining groove of dog
The locking piece includes rubber buffer, stay cord and lock ring, the rubber buffer with the interference of pressure sensing hole drill way is connected, stay cord one end with the rubber buffer is connected, and the other end extends to the casing top with the lock ring is connected, be provided with at the casing top with connect the lock ring complex go-between, its rubber buffer can seal pressure sensing hole, and at the lock-out condition, control assembly can not react to pressure in the well, just can not control the seal assembly and seal the well head yet, after removing the locking, control assembly monitors ambient pressure, changes according to the pressure difference, and the stay cord is fixed at the casing top through the cooperation of lock ring and go-between simultaneously, also makes things convenient for the staff to use.
As shown in fig. 4, the blowout preventer provided by the present application further includes a controller, the controller is wirelessly connected with the driving device, and is used for controlling the remote closing assembly by a worker, so as to emergency close a wellhead in case of an accident.
The application provides a use method of a blowout preventer, which comprises the following steps:
step S1: fixing the two semicircular pipe bodies to form a circular pipe with a hole in the center, and then placing the circular pipe into a wellhead;
step S2: fixing the shell and the ground around the wellhead by using an anchor rod through a fixing component arranged on the outer sides of the two semicircular pipe bodies;
step S3: the rubber plug is pulled out from the orifice of the pressure sensing hole through the pull rope, and the sealing of the pressure sensing hole is released;
step S4: the pressure sensing hole is communicated with the environment in the well, the pressure sensing piece arranged in the pressure sensing hole gradually moves upwards along with the lifting of the gravity in the well, and the pressure sensing piece just contacts with the trigger when reaching a set critical point;
step S5: the trigger activates the driving device, and the driving device pushes out the flashboard to seal the wellhead;
step S6: the actuation means is activated by the controller in the event of a trigger failure or other need to remotely operate the blowout preventer to seal.
Working process (principle):
the working personnel firstly locks the two semicircular pipe bodies through the anchor ear, then the semicircular pipe bodies are put into a well until the butt plate is butted with a well mouth, meanwhile, the fixed rod is straightened through the fixed component arranged on the fixed rod, the practical anchor rod fixes the pipe body with a hole in the center with the bottom surface around the well mouth through the fixed ring, when the well sealing operation is not needed, the device is in a locking state and can not react to the pressure in the well, when the well sealing operation is needed, the rubber plug is pulled out from the hole opening of the pressure sensing hole through the pull rope, the pressure sensing hole is communicated with the well, the pressure sensing piece in the device gradually moves upwards along the pressure sensing hole along with the rise of the pressure in the well, when the pressure in the well reaches the set critical point, the pressure sensing piece just contacts with the trigger, the trigger activates the driving device, the flashboard is pushed out to fall into the receiving channel by the, accept sealed glue fast in the passageway, also fast fill the gap that flashboard and accept passageway to exist and seal, when emergency, for example when trigger trouble can not activate drive arrangement, the staff can push out the flashboard through remote controller, control drive arrangement.
The embodiments given above are preferable examples for implementing the present invention, and the present invention is not limited to the above-described embodiments. Any non-essential addition and replacement made by the technical characteristics of the technical scheme of the invention by a person skilled in the art belong to the protection scope of the invention.
Claims (10)
1. A blowout preventer, characterized by: comprises a shell, a fixing component, a sealing component and a control component;
the fixed assembly is arranged on the outer side of the shell and used for locking the shell and the ground around the wellhead, the sealing assembly is arranged on the shell and used for closing the wellhead, and the control assembly is connected with the sealing assembly and used for controlling the sealing assembly to act;
the control assembly comprises a locking piece, a pressure sensing piece and a trigger, a pressure sensing hole is formed below the sealing cavity, the pressure sensing piece and the trigger are both installed in the pressure sensing hole, the locking piece is installed on the orifice of the pressure sensing hole to seal the pressure sensing hole, and the trigger is connected with the sealing assembly.
2. The blowout preventer of claim 1, wherein: the pressure sensing hole is a groove which is obliquely arranged, the orifice of the pressure sensing hole is positioned at the lowest part of the groove body, the edge of the pressure sensing piece is abutted against the inner wall of the pressure sensing hole, the shape of the pressure sensing piece is larger than that of the orifice of the pressure sensing hole, the pressure sensing piece is positioned at the lowest part of the pressure sensing hole under a normal state, when the external pressure is overlarge, the pressure sensing piece can gradually move upwards along the pressure sensing hole, and the trigger is arranged at the highest part of the pressure sensing hole and is connected with the sealing component.
3. The blowout preventer of claim 1, wherein: the locking piece includes rubber buffer, stay cord and lock ring, the rubber buffer with the interference in pressure sensing hole drill way is connected, stay cord one end with the rubber buffer is connected, and the other end extends to the casing top with the lock ring is connected the casing top be provided with connect the lock ring complex go-between.
4. The blowout preventer of claim 1, wherein: the seal assembly comprises a seal cavity, a gate plate and a driving device, the seal cavity is arranged on the shell, the seal cavity comprises a storage channel and a bearing channel, the storage channel is located on the left side of the shell, the bearing channel is symmetrically arranged on the right side of the shell, the shell is provided with the gate plate and the driving device, the driving device is arranged in the storage channel, the driving device is connected with the trigger, and when the driving device is activated, the driving device pushes one end of the gate plate to pass through the shell, so that the shell falls into the bearing channel, and a well mouth is sealed.
5. The blowout preventer of claim 4, wherein: one end of the flashboard close to the bearing channel is provided with a cutting edge for shearing a pipe section passing through the drilling hole.
6. The blowout preventer of claim 4, wherein: the trigger includes dog and trigger piece, the dog set up in the pressure sensing hole, be located the pressure sensing hole is the top, pressure sensing hole open-top with storage channel intercommunication, trigger piece is located the dog top, stretches into in the storage channel, stop the flashboard the pressure sensing hole sets up the position of dog and has seted up the retaining groove, dog one end stretches into in the retaining groove, the other end is in block trigger piece in the pressure sensing hole, dog one side ascending from keeping away from one side in retaining groove to the one side that is close to the retaining groove slope setting gradually downwards, simultaneously the dog stretches into the one end in retaining groove and is connected with the spring with retaining groove inner wall, the normal condition of spring can release the retaining groove with a part of dog.
7. The blowout preventer of claim 1, wherein: the shell comprises two matched semi-circular tube bodies and abutting plates arranged on the outer sides of the semi-circular tube bodies, the two semi-circular tube bodies are fixed through hoops to form a circular tube with a hole in the center, and the fixing assemblies are mounted on the outer sides of the two semi-circular tube bodies.
8. The blowout preventer of claim 7, wherein: the fixing assembly comprises a fixing rod, a connecting piece and a fixing ring, wherein the connecting piece and the fixing ring are arranged at two ends of the fixing rod respectively, the connecting piece is rotatably connected with the semicircular pipe body, and the fixing ring is fixed with the peripheral ground of a well mouth through an anchor rod.
9. The blowout preventer of claim 4, wherein: the trigger can also be an electromagnetic switch, the trigger is connected with the driving device, and the controller is wirelessly connected with the driving device and used for controlling the remote sealing assembly of a worker.
10. A method of using a blowout preventer, comprising: the method comprises the following steps:
step S1: fixing the two semicircular pipe bodies to form a circular pipe with a hole in the center, and then placing the circular pipe into a wellhead;
step S2: fixing the shell and the ground around the wellhead by using an anchor rod through a fixing component arranged on the outer sides of the two semicircular pipe bodies;
step S3: the rubber plug is pulled out from the orifice of the pressure sensing hole through the pull rope, and the sealing of the pressure sensing hole is released;
step S4: the pressure sensing hole is communicated with the environment in the well, the pressure sensing piece arranged in the pressure sensing hole gradually moves upwards along with the lifting of the gravity in the well, and the pressure sensing piece just contacts with the trigger when reaching a set critical point;
step S5: the trigger activates the driving device, and the driving device pushes out the flashboard to seal the wellhead;
step S6: the actuation means is activated by the controller in the event of a trigger failure or other need to remotely operate the blowout preventer to seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011502966.7A CN112627760A (en) | 2020-12-18 | 2020-12-18 | Blowout preventer and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011502966.7A CN112627760A (en) | 2020-12-18 | 2020-12-18 | Blowout preventer and using method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112627760A true CN112627760A (en) | 2021-04-09 |
Family
ID=75317494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011502966.7A Withdrawn CN112627760A (en) | 2020-12-18 | 2020-12-18 | Blowout preventer and using method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN112627760A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113982522A (en) * | 2021-12-30 | 2022-01-28 | 山东旭能石油装备有限责任公司 | Blowout preventer valve core self-locking mechanism and blowout preventer unit |
-
2020
- 2020-12-18 CN CN202011502966.7A patent/CN112627760A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113982522A (en) * | 2021-12-30 | 2022-01-28 | 山东旭能石油装备有限责任公司 | Blowout preventer valve core self-locking mechanism and blowout preventer unit |
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Application publication date: 20210409 |