CN111810076A - Control system of blowout preventer for workover under pressure - Google Patents
Control system of blowout preventer for workover under pressure Download PDFInfo
- Publication number
- CN111810076A CN111810076A CN202010797047.0A CN202010797047A CN111810076A CN 111810076 A CN111810076 A CN 111810076A CN 202010797047 A CN202010797047 A CN 202010797047A CN 111810076 A CN111810076 A CN 111810076A
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- Prior art keywords
- control
- blowout preventer
- valve
- hydraulic cylinder
- module
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/02—Valve arrangements for boreholes or wells in well heads
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/16—Control means therefor being outside the borehole
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
- E21B41/0021—Safety devices, e.g. for preventing small objects from falling into the borehole
Abstract
A blowout preventer control system for workover under pressure. The hydraulic control system comprises a blowout preventer stack, an execution hydraulic cylinder and a hydraulic power station, wherein the execution hydraulic cylinder controls the opening or closing of a gate valve of the blowout preventer stack, the hydraulic power station is communicated with the execution hydraulic cylinder through a multi-way control valve, and an electric control hydraulic multi-way control valve controls the extension or retraction of the execution hydraulic cylinder; the multi-way control valve is provided with an electromagnetic valve; the control module is connected with the wireless receiving module, the instruction switch and the electromagnetic valve; the control module receives and executes the instruction sent by the wireless remote controller or receives and executes the instruction sent by the instruction switch through the wireless receiving module, and the control module controls the execution hydraulic cylinder by controlling the electrification or the outage of the electromagnetic valve. The control system has the advantages that the design is reasonable, and the control modes of manual control, electric control, remote control and the like of the blowout preventer stack can be realized; meanwhile, the remote wireless monitoring of the pressurized workover device is realized by utilizing the internet technology, so that the safety, reliability and operation convenience of pressurized workover operation are fundamentally improved.
Description
Technical Field
The invention relates to a blowout preventer for workover under pressure, in particular to a blowout preventer control system for workover under pressure, and belongs to the technical field of oil and gas development workover.
Background
In the process of well repairing operation in the petroleum and gas industry, when the pressure in a shaft is lower than the formation pressure, the danger of well kick and blowout can exist, and even the out-of-control accident of the blowout can occur in serious conditions, so that not only can great safety risk be brought to operating personnel and equipment, but also underground oil and gas resources are damaged, and the environment is seriously polluted, therefore, well control is of great importance to the well repairing operation. In the conventional well repairing operation, well killing is carried out through the well killing fluid, so that certain damage to stratum and oil gas resources cannot be avoided.
The well repairing technology with pressure operation is one new technology of downhole operation, and includes controlling the annular pressure of oil jacket with blowout preventer, controlling the pressure inside oil pipe with blocking unit, and applying outer force to the pipe string to overcome the jacking force inside the well to complete the lifting of the pipe string under pressure. As no-killing operation is adopted in the well repairing process, the damage to an oil-gas layer is reduced to the maximum extent, the service life and the productivity of an oil-water well are effectively improved, and the method has important significance for increasing and stabilizing the yield in the middle and later periods of an oil field.
The well workover treatment under pressure is realized by the operation equipment under pressure, wherein a blowout preventer group is an important component in the operation equipment under pressure, and the control and the quick shut-off of the blowout preventer are important for the safe production of the operation under pressure.
At present, a blowout preventer stack of an under-pressure operation device is controlled in a manual hydraulic control mode, the manual hydraulic control mode needs to be observed nearby, operation control is concentrated on an under-pressure operation platform, when a serious blowout accident occurs, personnel can avoid danger urgently and leave a wellhead, the well control equipment cannot be operated, and therefore the safety problem of well control cannot be completely solved.
Disclosure of Invention
The invention provides a blowout preventer control system for repairing a well under the pressure, aiming at overcoming the defect that when the blowout preventer group of the existing well under pressure operation device is controlled and concentrated on a platform under the pressure, and serious well blowout accidents occur, personnel can not operate well control equipment again after emergently avoiding risks and withdrawing from a wellhead, so that the safety problem of well control can not be completely solved.
The technical scheme adopted by the invention for solving the technical problems is as follows: a blowout preventer control system for workover under pressure comprises a blowout preventer stack, an execution hydraulic cylinder and a hydraulic power station, wherein the hydraulic power station provides power for the execution hydraulic cylinder, the execution hydraulic cylinder controls the opening or closing of a gate valve of the blowout preventer stack, the hydraulic power station is communicated with the execution hydraulic cylinder through a multi-way control valve, and an electric control hydraulic multi-way control valve controls the extension or retraction of the execution hydraulic cylinder; the multi-way control valve is provided with an electromagnetic valve;
the control system also comprises a control module, and the control module is connected with the wireless receiving module, the instruction switch and the electromagnetic valve; the control module receives and executes the instruction sent by the wireless remote controller or receives and executes the instruction sent by the instruction switch through the wireless receiving module, and the control module controls the execution hydraulic cylinder by controlling the electrification or the outage of the electromagnetic valve.
The control module is connected with the communication module, the wireless data communication module collects data information of the control module in real time, the video monitor connected with the communication module shoots the working state of the field equipment, and the communication module transmits the data information of the blowout preventer stack carried by the control module and the working condition of the pressurized working equipment to the remote terminal in real time through a mobile network.
Further, the control module is powered by the power module.
Further, the remote control distance of the wireless remote controller is less than or equal to 200 m.
The remote terminal comprises a computer and a mobile phone, and a manager grasps and controls the running state and parameters of the equipment through the remote terminal.
When the electromagnetic valve is electrified, the electric control hydraulic multi-way valve switches a liquid path, the execution hydraulic cylinder extends out, and the gate valve of the blowout preventer stack is closed; when the electromagnetic valve is powered off, the execution hydraulic cylinder retracts, and the flashboard valve of the blowout preventer stack is opened.
The hydraulic multi-way control valve is provided with an operation handle, and a hydraulic path of the hydraulic multi-way control valve is manually controlled and switched.
The invention has the advantages that the design is reasonable, and the control modes of close-range control, remote control and the like of the blowout preventer stack of the pressurized operation device can be realized; meanwhile, the remote wireless monitoring of the pressurized workover device is realized by utilizing the internet technology, so that the safety, reliability and operation convenience of pressurized workover operation are fundamentally improved.
Drawings
FIG. 1 is a control system schematic diagram of the control system of the blowout preventer for workover under pressure operation of the invention.
FIG. 2 is a schematic diagram of a hydraulic system of the control system of the blowout preventer for workover treatment under pressure of the invention.
In the figure: 1. the system comprises a wireless remote controller, 2 a wireless receiving module, 3 a control module, 4 an instruction switch, 5 a communication module, 6 a mobile network, 7 a remote terminal, 8 a power supply module, 9 a video monitor, 10 an electromagnetic valve, 11 an execution hydraulic cylinder, 12 a hydraulic power station, 13 a multi-way control valve and 14 a handle.
Detailed Description
The invention is further illustrated by the following figures and examples. However, it should be understood by those skilled in the art that the present invention is not limited to the specific embodiments listed, and should be included within the scope of the present invention as long as the spirit of the present invention is met.
See figure 2. The invention relates to a blowout preventer control system for workover under pressure, which comprises a blowout preventer stack, an execution hydraulic cylinder 11 and a hydraulic power station 12, wherein the hydraulic power station 12 provides power for the execution hydraulic cylinder 11, and the execution hydraulic cylinder 11 controls the opening or closing of a gate valve of the blowout preventer stack.
The hydraulic power station 12 is communicated with the execution hydraulic cylinder 11 through a multi-way control valve 13, and the electric control hydraulic multi-way control valve 13 controls the execution hydraulic cylinder 11 to extend or retract; the multiplex control valve 13 is provided with a solenoid valve 10.
See figure 1. The control system also comprises a control module 3 (central processing unit (CPU)), wherein the control module 3 collects input control instruction signals in real time, performs data processing and data calculation through a control program, outputs control decision signals and realizes effective control of the execution part. The control module 3 is connected with the wireless receiving module 2, the instruction switch 4 and the electromagnetic valve 10. The control module 3 receives and executes the instruction sent by the wireless remote controller 1 through the wireless receiving module 2, or receives and executes the instruction sent by the instruction switch 4, and the control module 3 controls the execution hydraulic cylinder 11 by controlling the power-on or power-off of the electromagnetic valve 10.
Further, the control module 3 is connected with the communication module 5, the wireless data communication module 5 collects data information of the control module 3 in real time, the video monitor 9 connected with the communication module 5 shoots the working state of the field equipment, and the communication module 5 transmits the data information of the blowout preventer stack carried by the control module 3 and the working condition of the pressurized working equipment to the remote terminal 7 in real time through the mobile network 6.
Further, the control module 3 is powered by a power module 8, and the power module 8 has a charging function and a battery over-discharge and over-charge protection function.
Further, the wireless remote controller 1 and the command switch 4 have an interlock function, that is: the control signals of the wireless remote controller 1 and the instruction switch 4 cannot act simultaneously, so that misoperation is avoided. The command switch 4 is disabled by operating the change-over switch on the wireless remote controller 1, so that the interlocking function is realized. Preferably, the control module 3 preferentially executes the command sent by the wireless remote controller 1.
Still further, the remote control distance of the wireless remote controller 1 is less than or equal to 200 m.
Further, the remote terminal 7 comprises a computer, a mobile phone and the like, and a manager can master and control the running state and parameters of the equipment through the remote terminal 7, so that the management platform can conveniently manage the equipment and field operation personnel in an all-around manner, and the construction operation safety is further ensured.
The opening and closing of the gate valve of the blowout preventer stack are controlled by the extension and retraction of the execution hydraulic cylinder 11, the extension and retraction of the execution hydraulic cylinder 11 are controlled by the electric control hydraulic multi-way valve 13, when the electromagnetic valve 10 is electrified, the electric control hydraulic multi-way valve 13 switches a hydraulic path, the execution hydraulic cylinder 11 extends, and the gate valve of the blowout preventer stack is closed; when the electromagnetic valve 10 is powered off, the execution hydraulic cylinder 11 retracts, and the gate valve of the blowout preventer stack is opened.
Further, the hydraulic multi-way control valve 13 is provided with a control handle 14 for manually controlling and switching the hydraulic way of the hydraulic multi-way control valve 13 to control the actuating hydraulic cylinder 11.
The control system of the blowout preventer for workover under pressure comprises two control modes of electric control and manual control, wherein the electric control comprises remote control through a wireless remote controller and close-range control of an instruction switch, an electric control signal is transmitted to a control module 3, the control module 3 performs instruction operation through a control program and outputs the control signal to an electromagnetic valve 10 arranged on an electric control hydraulic multi-way valve 13, and the electric control hydraulic multi-way valve 13 switches an oil way according to the electrification or outage of the electromagnetic valve to realize the control of an execution hydraulic cylinder 11. When the construction is normally carried out on site, the electromagnetic valve 10 is powered off, the hydraulic cylinder 11 is retracted, and the gate valve of the blowout preventer stack is opened. When an emergency occurs in a construction operation site, an operator can withdraw from the operation site to a safe area, an instruction signal for closing the blowout preventer stack is transmitted through the wireless remote controller 1, the wireless receiving module 2 receives the instruction signal of the wireless remote controller 1 and transmits the instruction signal to the control module 3, the control module 3 outputs a control signal to the electromagnetic valve 10 through program operation, the electromagnetic valve 10 is electrified, the electronic control hydraulic multi-way valve 13 is controlled to switch a liquid path, the execution hydraulic cylinder 11 is controlled, the execution hydraulic cylinder 11 extends out, the blowout preventer stack gate valve is closed, and the blowout preventer stack gate valve is closed.
The blowout preventer stack of the workover rig for the operation under pressure flexibly and reliably controls equipment through an electric control handle or a remote controller, and is convenient, rapid and labor-saving to operate. The control mode of the remote controller is adopted, when the well mouth is in blowout and kick danger, the well mouth is timely withdrawn from the site, the well mouth is closed by the remote controller at the first time after the safe distance from the equipment, and the safety of operators and workover equipment is ensured to the maximum extent; meanwhile, through an internet wireless data communication system, the workover management platform can monitor and guide field operation equipment in real time, and through monitoring the working state of the equipment and analyzing the operation parameters of the equipment, the management platform can conveniently manage the equipment and personnel in all directions, so that the operation safety is further ensured.
The invention adopts the combination of wireless remote control technology, remote electro-hydraulic control technology, automation technology and internet communication technology to control the blowout preventer stack, thereby realizing the near operation and remote control of the blowout preventer stack. An operator can control the opening or closing of the gate valve of the blowout preventer nearby through an instruction switch or a control handle on the working platform with pressure; the blowout preventer can also be turned off at the first time within a range of 200 meters away from the wellhead by adopting a remote control device, so that the operation safety is improved, and the generation of heavy loss is avoided; meanwhile, the working state and the video monitoring video of the blowout preventer stack can be transmitted to the user terminal in real time, so that the data of the well control blowout preventer can be conveniently collected and analyzed, and support is provided for equipment use and maintenance.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design many alternative embodiments without departing from the scope of the appended claims.
Claims (7)
1. The utility model provides a blowout preventer control system of workover under pressure, includes blowout preventer stack, execution hydraulic cylinder, hydraulic power station, and hydraulic power station provides power for executing the hydraulic cylinder, and the execution hydraulic cylinder controls opening or closing of blowout preventer stack slide valve, characterized by:
the hydraulic power station is communicated with the execution hydraulic cylinder through a multi-way control valve, and the electric control hydraulic multi-way control valve controls the execution hydraulic cylinder to extend or retract; the multi-way control valve is provided with an electromagnetic valve;
the control system also comprises a control module, and the control module is connected with the wireless receiving module, the instruction switch and the electromagnetic valve; the control module receives and executes the instruction sent by the wireless remote controller or receives and executes the instruction sent by the instruction switch through the wireless receiving module, and the control module controls the execution hydraulic cylinder by controlling the electrification or the outage of the electromagnetic valve.
2. The control system of the blowout preventer for workover according to claim 1, wherein: the control module is connected with the communication module, the wireless data communication module collects data information of the control module in real time, the video monitor connected with the communication module shoots the working state of the field equipment, and the communication module transmits the data information of the blowout preventer stack carried by the control module and the working condition of the pressurized working equipment to the remote terminal in real time through a mobile network.
3. A control system for a blowout preventer according to any one of claims 1 to 2 for workover operations, wherein: the control module is powered by the power module.
4. The control system of the blowout preventer for workover according to claim 3, wherein: the remote control distance of the wireless remote controller is less than or equal to 200 m.
5. The control system of the blowout preventer for workover according to claim 2, wherein: the remote terminal comprises a computer and a mobile phone, and a manager grasps and controls the running state and parameters of the equipment through the remote terminal.
6. The control system of the blowout preventer for workover according to claim 1, wherein: when the electromagnetic valve is electrified, the electric control hydraulic multi-way valve switches a liquid path, the execution hydraulic cylinder extends out, and the gate valve of the blowout preventer stack is closed; when the electromagnetic valve is powered off, the execution hydraulic cylinder retracts, and the flashboard valve of the blowout preventer stack is opened.
7. The control system of the blowout preventer for workover according to claim 6, wherein: the hydraulic multi-way control valve is provided with an operation handle, and a hydraulic path of the hydraulic multi-way control valve is manually controlled and switched.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010797047.0A CN111810076A (en) | 2020-08-10 | 2020-08-10 | Control system of blowout preventer for workover under pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010797047.0A CN111810076A (en) | 2020-08-10 | 2020-08-10 | Control system of blowout preventer for workover under pressure |
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| Publication Number | Publication Date |
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| CN111810076A true CN111810076A (en) | 2020-10-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010797047.0A Pending CN111810076A (en) | 2020-08-10 | 2020-08-10 | Control system of blowout preventer for workover under pressure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11708738B2 (en) | 2020-08-18 | 2023-07-25 | Schlumberger Technology Corporation | Closing unit system for a blowout preventer |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200989202Y (en) * | 2006-08-28 | 2007-12-12 | 美钻石油钻采系统(上海)有限公司 | Blowout preventer control equipment with wireless remote-control function |
| CN201588592U (en) * | 2009-12-01 | 2010-09-22 | 广东省广州石油机械厂 | Wireless remote control blowout preventer control device with high pressure test function |
| CN107407137A (en) * | 2015-03-09 | 2017-11-28 | 沙特阿拉伯石油公司 | Start well system tool |
| CN110130849A (en) * | 2019-05-08 | 2019-08-16 | 任丘市高登石油机械有限公司 | A kind of control system of preventer based on Internet of Things |
-
2020
- 2020-08-10 CN CN202010797047.0A patent/CN111810076A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200989202Y (en) * | 2006-08-28 | 2007-12-12 | 美钻石油钻采系统(上海)有限公司 | Blowout preventer control equipment with wireless remote-control function |
| CN201588592U (en) * | 2009-12-01 | 2010-09-22 | 广东省广州石油机械厂 | Wireless remote control blowout preventer control device with high pressure test function |
| CN107407137A (en) * | 2015-03-09 | 2017-11-28 | 沙特阿拉伯石油公司 | Start well system tool |
| CN110130849A (en) * | 2019-05-08 | 2019-08-16 | 任丘市高登石油机械有限公司 | A kind of control system of preventer based on Internet of Things |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11708738B2 (en) | 2020-08-18 | 2023-07-25 | Schlumberger Technology Corporation | Closing unit system for a blowout preventer |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201023 |
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| RJ01 | Rejection of invention patent application after publication |