CN111075408A - Device and method for remotely controlling gas production rate of coal-bed gas well - Google Patents
Device and method for remotely controlling gas production rate of coal-bed gas well Download PDFInfo
- Publication number
- CN111075408A CN111075408A CN201911377476.6A CN201911377476A CN111075408A CN 111075408 A CN111075408 A CN 111075408A CN 201911377476 A CN201911377476 A CN 201911377476A CN 111075408 A CN111075408 A CN 111075408A
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- Prior art keywords
- stepping motor
- coal
- gas
- production rate
- bed gas
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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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
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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
-
- 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/006—Production of coal-bed methane
Abstract
The invention relates to a device and a method for remotely controlling the gas production rate of a coal bed gas well.A remote upper control machine sends a control instruction, the control instruction is sent to a 4G router in a wireless communication mode and is forwarded to a stepping motor controller, the stepping motor controller controls a stepping motor driver according to the control instruction to drive a stepping motor, and the stepping motor drives a speed reducer and a connecting piece to rotate so as to drive a controllable cone to rotate towards an appointed direction, so that the remote control of the gas production rate of the coal bed gas well is realized. The invention is matched with a remote transmission system, can realize remote control, greatly reduces the workload of people, has a full-automatic data acquisition, analysis and drawing system, can analyze the coal bed gas well in real time, and most importantly can remotely adjust the field gas production in time.
Description
Technical Field
The invention relates to the technical field of mine discharge control, in particular to a device and a method for remotely controlling gas production rate of a coal-bed gas well.
Background
In the process of discharging and mining the coal bed gas, according to the change conditions of casing pressure and gas production, the gas supply quantity is often required to be adjusted on site by using a conical valve, the labor cost is consumed, the gas supply quantity cannot be adjusted in time, personnel cannot stop the station for 24 hours, the casing pressure is easily changed rapidly, and the productivity of the coal bed gas well is affected. Therefore, a set of equipment capable of remotely controlling the on-site throttle valve is needed to protect the coal reservoir and reduce the production cost.
Disclosure of Invention
The invention aims to solve the technical problem of providing a device and a method for remotely controlling the gas production rate of a coal bed gas well aiming at the defects in the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows: a device for remotely controlling the gas production rate of a coal-bed gas well is constructed, and comprises: the power supply mechanism, the motor control mechanism and the mechanical connecting mechanism; the mechanical connecting mechanism comprises a stepping motor, a speed reducer, a connecting piece and a throttle valve which are connected in sequence; the throttling valve is provided with a gas inlet and a gas outlet for coal bed gas circulation, a controllable cone is arranged to extend into the throttling valve from a through hole at the top of the throttling valve, a screw thread and a sealing ring are arranged at the opening of the through hole, threads are arranged on the side wall of the controllable cone and move relative to the screw thread in a thread fit mode, so that the bottom end of the controllable cone blocks the gas outlet, and the gas inlet and the gas outlet are sealed and communicated; the top end of the controllable cone is fixedly provided with a screw thread type lifting plunger which is fixedly connected with the speed reducer through a connecting piece, and the speed reducer is connected with the stepping motor, so that the stepping motor drives the speed reducer and the connecting piece to rotate, the screw thread type lifting plunger drives the threads on the side wall of the controllable cone to be matched with the threads on the screw thread and the sealing ring, the controllable cone moves relative to the gas outlet, and the sealing and the conduction of the gas outlet are realized; the motor control mechanism comprises a stepping motor controller and a stepping motor driver, the stepping motor controller is connected with the stepping motor driver, and the stepping motor driver is connected with the stepping motor; the stepping motor controller is connected to a remote upper controller in a wireless communication mode to receive a control signal of the upper controller; the power supply mechanism is connected with the stepping motor controller and the stepping motor driver of the motor control mechanism to supply power.
The power supply mechanism comprises a relay, a direct current transformer and a storage battery, the direct current transformer and the storage battery are connected with the relay, and the relay is connected with a stepping motor controller and a stepping motor driver of the motor control mechanism.
The stepping motor controller of the motor control mechanism is connected with a 4G router, and the 4G router is connected with the remote upper control machine in a wireless communication mode so as to receive a control signal of the remote upper control machine and send the control signal to the stepping motor controller.
Wherein, the 4G router is connected with a relay of the power supply mechanism for supplying power.
Wherein, gas inlet and gas outlet department set up the internal thread, and coal bed gas admission line sets up the external screw thread with the pipeline mouth of giving vent to anger pipeline, and gas inlet and coal bed gas admission line, gas outlet and the pipeline of giving vent to anger are respectively through screw-thread fit's mode fixed connection.
The technical scheme adopted by the invention for solving the technical problems is as follows: the method for remotely controlling the gas production rate of the coal-bed gas well is constructed, the device for remotely controlling the gas production rate of the coal-bed gas well according to the technical scheme is adopted for control, and the method comprises the following steps:
the remote upper control machine sends a control instruction, the control instruction is sent to the 4G router in a wireless communication mode and forwarded to the stepping motor controller, the stepping motor controller controls a stepping motor driver according to the control instruction to drive the stepping motor, and the stepping motor drives the speed reducer and the connecting piece to rotate so as to drive the controllable cone to rotate in the designated direction, so that the remote control of the gas production rate of the coal bed gas well is realized.
Different from the prior art, the device and the method for remotely controlling the gas production rate of the coal-bed gas well provided by the invention have the advantages that the remote upper control machine sends the control instruction, the control instruction is sent to the 4G router in a wireless communication mode and is forwarded to the stepping motor controller, the stepping motor controller controls the driver of the stepping motor according to the control instruction to drive the stepping motor, and the stepping motor drives the speed reducer and the connecting piece to rotate so as to drive the controllable cone to rotate towards the specified direction, so that the remote control of the gas production rate of the coal-bed gas well is realized. The invention is matched with a remote transmission system, can realize remote control, greatly reduces the workload of people, has a full-automatic data acquisition, analysis and drawing system, can analyze the coal bed gas well in real time, and most importantly can remotely adjust the field gas production in time.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic structural diagram of an apparatus for remotely controlling gas production rate of a coal-bed gas well provided by the invention.
Fig. 2 is a schematic structural diagram of a throttle valve of the device for remotely controlling the gas production rate of the coal-bed gas well provided by the invention.
Detailed Description
For a more clear understanding of the technical features, objects and effects of the present invention, embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
As shown in fig. 1, the device for remotely controlling the gas production rate of the coal bed gas well in the invention comprises: the power supply device comprises a power supply mechanism 1, a motor control mechanism 2 and a mechanical connecting mechanism 3; wherein, the mechanical connecting mechanism 3 comprises a stepping motor 31, a speed reducer 32, a connecting piece 33 and a throttle valve 34 which are connected in sequence; the throttle valve 34 is provided with a gas inlet 341 and a gas outlet 342 for coal bed gas circulation, a controllable cone 343 is arranged to extend into the throttle valve from a through hole at the top of the throttle valve, a screw thread and a sealing ring 344 are arranged at the through hole, threads are arranged on the side wall of the controllable cone 343 and move relative to the screw thread in a thread matching mode, so that the bottom end of the controllable cone 343 blocks the gas outlet 342, and the gas inlet 341 and the gas outlet 342 are sealed and communicated; a screw thread type lifting plunger 345 is fixedly arranged at the top end of the controllable cone 343 and fixedly connected with the speed reducer 32 through the connecting piece 33, the speed reducer 32 is connected with the stepping motor 31, so that the stepping motor 31 drives the speed reducer 32 and the connecting piece 33 to rotate, the screw thread type lifting plunger 345 drives the threads on the side wall of the controllable cone 343 to be matched with the screw threads on the sealing ring 344, the controllable cone 343 is made to move relative to the gas outlet 342, and the gas outlet 342 is sealed and communicated; the motor control mechanism 2 comprises a stepping motor controller 21 and a stepping motor driver 22, wherein the stepping motor controller 21 is connected with the stepping motor driver 22, and the stepping motor driver 22 is connected with a stepping motor 31; the stepping motor controller 21 is connected to the remote upper controller 4 in a wireless communication manner to receive a control signal of the upper controller 4; the power supply mechanism 1 connects the stepping motor controller 21 and the stepping motor driver 22 of the motor control mechanism 2 to supply power.
The power supply mechanism 1 comprises a relay 11, a direct current transformer 12 and a storage battery 13, the direct current transformer 12 and the storage battery 13 are connected with the relay 11, and the relay 11 is connected with a stepping motor controller 21 and a stepping motor driver 22 of the motor control mechanism 2.
The stepping motor controller 21 of the motor control mechanism 2 is connected with a 4G router 5, and the 4G router 5 is connected with the remote upper control machine 4 in a wireless communication manner so as to receive a control signal of the remote upper control machine 4 and send the control signal to the stepping motor controller 21.
Among them, the 4G router 5 is connected to the relay 11 of the power supply mechanism 1 to supply power.
The gas inlet 341 and the gas outlet 342 are provided with internal threads, the coal bed gas inlet pipeline and the gas outlet pipeline are provided with external threads, and the gas inlet 341 and the coal bed gas inlet pipeline, the gas outlet 342 and the gas outlet pipeline are fixedly connected in a thread matching mode respectively.
As shown in fig. 2, choke valve 34 is the cube type, gas inlet 341 and gas outlet 342 are seted up along collinear looks to the same two relative surfaces respectively, the two UNICOM, controllable cone 343 is in throttle valve 34 body is inserted choke valve 34 body from the through-hole that throttle valve 34 body top was seted up, screw thread through the lateral wall setting, can follow the through-hole and reciprocate, when moving to the lower extreme, seal gas outlet completely, when ascending gradually from the lower extreme, can realize the gradual amplification to gas outlet, thereby through the position of the controllable cone 343 lower extreme of control, realize the control to the gas production. The through-opening is provided with a screw thread and a sealing ring 344, the screw thread of which cooperates with a screw thread provided on the side wall of the controllable cone 343.
The stepping motor 31 is fixedly connected to a screw thread type lifting plunger 345 fixedly arranged at the top end of the controllable cone 343 through the speed reducer 32 and the connecting piece 33, and the stepping motor 31 is matched with the speed reducer 32 to work, so that the connecting piece 33 drives the screw thread type lifting plunger 345 and the controllable cone 343 to rotate. By controlling the rotation time and the rotation speed of the stepping motor 31, the position of the bottom end of the controllable cone 343 relative to the gas outlet 342 can be determined, and thus the gas production rate of the coal bed gas discharged from the gas outlet 342 can be controlled. The controllable cone 343 is moved up and down by rotating the threaded elevating plunger 345, thereby controlling the minimum sectional area of the gas passing through the gas outlet 342 and restricting the gas flow rate.
The throttle valve 34 has the similar function as a conical valve, can resist air pressure impact, is high in quality, accurate in sealing and gas-tight, has the working pressure range of 0.05-1.6Mpa, is made of aluminum alloy, is good in adjustability, can be manually controlled to achieve minimum precision adjustment of 0.1m3/h, and is particularly suitable for the condition that the early-stage pressure of a coal bed gas well is high but gas supply is insufficient.
The stepping motor 31 is controlled by a stepping motor driver 22 of the motor control mechanism 2, the stepping motor driver 22 is controlled by a stepping motor controller 21, the stepping motor controller 21 is connected to a remote upper control machine 4 in a wireless communication mode through a 4G router 5, and the remote upper control machine 4 can be a computer or a mobile device.
The stepping motor 31 and the stepping motor driver 22 are 57 stepping motors which are sleeved and matched for use.
In addition, the invention also provides a method for remotely controlling the gas production rate of the coal bed gas well, which is controlled by using the device for remotely controlling the gas production rate of the coal bed gas well, and comprises the following steps:
the remote upper control machine sends a control instruction, the control instruction is sent to the 4G router in a wireless communication mode and forwarded to the stepping motor controller, the stepping motor controller controls a stepping motor driver according to the control instruction to drive the stepping motor, and the stepping motor drives the speed reducer and the connecting piece to rotate so as to drive the controllable cone to rotate in the designated direction, so that the remote control of the gas production rate of the coal bed gas well is realized.
Different from the prior art, the device and the method for remotely controlling the gas production rate of the coal-bed gas well provided by the invention have the advantages that the remote upper control machine sends the control instruction, the control instruction is sent to the 4G router in a wireless communication mode and is forwarded to the stepping motor controller, the stepping motor controller controls the driver of the stepping motor according to the control instruction to drive the stepping motor, and the stepping motor drives the speed reducer and the connecting piece to rotate so as to drive the controllable cone to rotate towards the specified direction, so that the remote control of the gas production rate of the coal-bed gas well is realized. The invention is matched with a remote transmission system, can realize remote control, greatly reduces the workload of people, has a full-automatic data acquisition, analysis and drawing system, can analyze the coal bed gas well in real time, and most importantly can remotely adjust the field gas production in time.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (6)
1. A device for remotely controlling gas production rate of a coal bed gas well is characterized by comprising: the power supply mechanism, the motor control mechanism and the mechanical connecting mechanism; the mechanical connecting mechanism comprises a stepping motor, a speed reducer, a connecting piece and a throttle valve which are connected in sequence; the throttling valve is provided with a gas inlet and a gas outlet for coal bed gas circulation, a controllable cone is arranged to extend into the throttling valve from a through hole at the top of the throttling valve, a screw thread and a sealing ring are arranged at the opening of the through hole, threads are arranged on the side wall of the controllable cone and move relative to the screw thread in a thread fit mode, so that the bottom end of the controllable cone blocks the gas outlet, and the gas inlet and the gas outlet are sealed and communicated; the top end of the controllable cone is fixedly provided with a screw thread type lifting plunger which is fixedly connected with the speed reducer through a connecting piece, and the speed reducer is connected with the stepping motor, so that the stepping motor drives the speed reducer and the connecting piece to rotate, the screw thread type lifting plunger drives the threads on the side wall of the controllable cone to be matched with the threads on the screw thread and the sealing ring, the controllable cone moves relative to the gas outlet, and the sealing and the conduction of the gas outlet are realized; the motor control mechanism comprises a stepping motor controller and a stepping motor driver, the stepping motor controller is connected with the stepping motor driver, and the stepping motor driver is connected with the stepping motor; the stepping motor controller is connected to a remote upper controller in a wireless communication mode to receive a control signal of the upper controller; the power supply mechanism is connected with the stepping motor controller and the stepping motor driver of the motor control mechanism to supply power.
2. The device for remotely controlling the gas production rate of the coal-bed gas well as recited in claim 1, wherein the power supply mechanism comprises a relay, a direct current transformer and a storage battery, the direct current transformer and the storage battery are connected with the relay, and the relay is connected with a stepping motor controller and a stepping motor driver of the motor control mechanism.
3. The device for remotely controlling the gas production rate of the coal-bed gas well as recited in claim 2, wherein a stepping motor controller of the motor control mechanism is connected with a 4G router, and the 4G router is connected with the remote upper control machine in a wireless communication mode so as to receive a control signal of the remote upper control machine and send the control signal to the stepping motor controller.
4. The device for remotely controlling the gas production rate of the coal-bed gas well as recited in claim 3, wherein the 4G router is connected with a relay of a power supply mechanism for supplying power.
5. The device for remotely controlling the gas production rate of the coal-bed gas well as claimed in claim 1 is characterized in that internal threads are arranged at a gas inlet and a gas outlet, external threads are arranged at pipe orifices of a coal-bed gas inlet pipeline and a gas outlet pipeline, and the gas inlet and the coal-bed gas inlet pipeline and the gas outlet pipeline are fixedly connected in a thread matching mode respectively.
6. A method for remotely controlling the gas production rate of a coal-bed gas well by using the device for remotely controlling the gas production rate of the coal-bed gas well as claimed in any one of claims 1 to 5, which is characterized by comprising the following steps:
the remote upper control machine sends a control instruction, the control instruction is sent to the 4G router in a wireless communication mode and forwarded to the stepping motor controller, the stepping motor controller controls a stepping motor driver according to the control instruction to drive the stepping motor, and the stepping motor drives the speed reducer and the connecting piece to rotate so as to drive the controllable cone to rotate in the designated direction, so that the remote control of the gas production rate of the coal bed gas well is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911377476.6A CN111075408A (en) | 2019-12-27 | 2019-12-27 | Device and method for remotely controlling gas production rate of coal-bed gas well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911377476.6A CN111075408A (en) | 2019-12-27 | 2019-12-27 | Device and method for remotely controlling gas production rate of coal-bed gas well |
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| CN111075408A true CN111075408A (en) | 2020-04-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911377476.6A Pending CN111075408A (en) | 2019-12-27 | 2019-12-27 | Device and method for remotely controlling gas production rate of coal-bed gas well |
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| CN206845147U (en) * | 2017-06-09 | 2018-01-05 | 西安海智机电设备有限公司 | A kind of Intelligent adjustment type needle-valve and remote switch well control systems |
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| CN208224797U (en) * | 2018-05-31 | 2018-12-11 | 天门市志远信息科技有限公司 | A kind of air valve remote switch device |
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2019
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20080154510A1 (en) * | 2006-12-21 | 2008-06-26 | Chevron U.S.A. Inc. | Method and system for automated choke control on a hydrocarbon producing well |
| CN203067848U (en) * | 2013-02-21 | 2013-07-17 | 温州职业技术学院 | Intelligent four-path distribution plug valve |
| CN104343426A (en) * | 2013-08-02 | 2015-02-11 | 中国石油天然气股份有限公司 | System and technology for intelligent throttling in natural gas well |
| CN204647337U (en) * | 2015-04-29 | 2015-09-16 | 常州市龙朝标准件厂 | A kind of electronic long-range throttle valve |
| CN106321879A (en) * | 2016-08-26 | 2017-01-11 | 赛洛克流体设备成都有限公司 | Remotely-controlled electric buffering plunger valve |
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Application publication date: 20200428 |
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| RJ01 | Rejection of invention patent application after publication |