CN209908684U - Full-automatic control device of concentric pipe jet pump of coal bed gas cluster well - Google Patents

Full-automatic control device of concentric pipe jet pump of coal bed gas cluster well Download PDF

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Publication number
CN209908684U
CN209908684U CN201920500128.2U CN201920500128U CN209908684U CN 209908684 U CN209908684 U CN 209908684U CN 201920500128 U CN201920500128 U CN 201920500128U CN 209908684 U CN209908684 U CN 209908684U
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unit
jet pump
central management
wireless
plc
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CN201920500128.2U
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葛静涛
沈霁
王志永
刘波
陶文雯
魏哲宏
詹俊
葛明军
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SINOPEC LINFEN COALBED GAS BRANCH Co.
China Petroleum and Chemical Corp
Sinopec East China Co
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China Petroleum Chemical Co Linfen Coalbed Methane Branch
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Abstract

The invention discloses a full-automatic control device for a concentric tube jet pump of a cluster well of coal bed gas, which comprises a field working unit, a data acquisition unit, a PLC (programmable logic controller) control unit and a central management unit, wherein the field working unit is provided with the concentric tube jet pump, the concentric tube jet pump is connected with a plunger pump through a pipeline, high-pressure automatic regulating valves and detection instruments are respectively arranged on connecting pipelines of the concentric tube jet pump and the plunger pump, the concentric tube jet pump and the plunger pump are respectively connected with a jet pump frequency converter and a plunger pump frequency converter, and a data processor is connected with various instruments; the PLC controller is connected with the jet pump frequency converter, the plunger pump frequency converter and the high-pressure automatic regulating valve, and the PLC control unit is connected with the data acquisition unit and is in wireless connection with the central management unit. The utility model has the advantages of but remote monitoring, remote control, data transfer are stable, can automatic control exploitation, its mainly used coal bed gas exploitation.

Description

Full-automatic control device of concentric pipe jet pump of coal bed gas cluster well
Technical Field
The invention relates to the technical field of coal bed gas exploitation, in particular to a full-automatic control device for a concentric pipe jet pump of a cluster well of coal bed gas.
Background
The coal bed gas drainage and mining in China generally adopts a pumping unit + pipe/rod type pump drainage and mining technology, a screw pump drainage and mining technology and an electric submersible pump drainage and mining technology. However, the above three conventional drainage and production technologies cannot meet the drainage and production requirements of all coal bed gas wells, such as sand production, pulverized coal production and wells with large well deviation. If the conventional drainage and production technology is used for the well, the pump blockage and the eccentric wear can be caused, and the continuous and stable drainage and production of the coal-bed gas well are influenced. The concentric tube jet pump drainage and production technology adopts a rodless lifting mode to conduct drainage and production, and because no mechanical moving part is arranged in the working process, the power liquid flowing at high speed has strong sand carrying and coal powder carrying capabilities, and can be taken out of a shaft. Therefore, the purposes of eccentric wear prevention, sand prevention and pulverized coal blockage can be achieved by using the jet pump for drainage and production, and continuous and stable drainage and production of the coal-bed gas well are realized.
In the research aspect of the concentric tube jet pump, Chinese scholars focus on a series of theoretical researches, particularly on the aspects of establishing a turbulent flow field model in the concentric tube jet pump, calculating numerical values and the like, but neglect the field practical application. According to research, the concentric tube jet pump is only applied to the exploitation of a heavy oil well and the sand discharge of an oil and gas well in a small amount in the aspect of application of the concentric tube jet pump in an oil and gas field in China, research and experiments are almost not carried out on the discharge and exploitation of the coal bed gas concentric tube jet pump, and the technology for automatically controlling the discharge and exploitation of the coal bed gas concentric tube jet pump is still blank in China.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the full-automatic control device for the concentric pipe jet pump of the cluster well of the coal bed gas, which can realize remote monitoring, remote control and stable data transmission and can automatically control the exploitation.
The technical scheme adopted by the invention for realizing the purpose is as follows: a full-automatic control device for a concentric tube jet pump of a cluster well of coal bed gas comprises a field working unit, a data acquisition unit, a PLC (programmable logic controller) control unit and a central management unit, wherein the field working unit is provided with the concentric tube jet pump which is connected with a plunger pump through a pipeline, a high-pressure automatic regulating valve and a plurality of groups of detection instruments of different types are arranged on a connecting pipeline of the concentric tube jet pump and the plunger pump, the concentric tube jet pump and the plunger pump are respectively connected with a jet pump frequency converter and a plunger pump frequency converter through data lines, the data acquisition unit comprises a first wireless unit and a data processor, and the data processor is respectively connected with the detection instruments, the concentric tube jet pump, the plunger pump, the high-pressure automatic regulating valve, the jet pump frequency converter and the plunger pump frequency converter; the data acquisition unit is connected with the PLC control unit, the PLC control unit is including PLC controller, second wireless unit, the PLC controller with jet pump converter, plunger pump converter, high-pressure automatically regulated valve are connected, the PLC control unit passes through second wireless unit wireless connection the central management unit, the data acquisition unit passes through first wireless unit wireless connection the central management unit, the central management unit is including having man-machine interface, third wireless unit, memory cell, the central management unit pass through the third wireless unit with PLC control unit wireless connection, memory cell, man-machine interface are connected with the third wireless unit through the data line respectively.
The detection instrument adopts a high-pressure flowmeter and a concentration detector, and connection interfaces among all parts in the data acquisition unit, the PLC control unit and the central management unit all adopt RS485 interfaces.
The central management unit is internally provided with a configuration matched with the exploitation of the coal bed gas cluster well, and the central management unit is internally provided with an alarm unit.
The central management unit is provided with a server in a matched mode, and the server is connected with the central management unit through a third wireless unit.
The central management unit is provided with a work computer, and the work computer is connected with a printer.
The first wireless unit, the second wireless unit and the third wireless unit are respectively provided with a wireless base station in a matching way, and the wireless base stations are installed at different positions and in different numbers according to actual conditions.
The PLC control unit is provided with a control console, and the control console is provided with a control button and is connected with the PLC controller through a data line.
The invention has the following beneficial effects:
1. the concentric pipe jet pump and the plunger pump are respectively provided with a detection instrument for detecting different parameters, the detected parameters are transmitted to the central management unit through the first wireless unit, and the PLC control unit controls the parameters to be transmitted to the central management unit through the second wireless unit, so that the central management unit can check data change in the mining process all the time, and the device can monitor the mining condition remotely;
2. the concentric tube jet pump and the plunger pump are both connected with a PLC control unit, and a PLC controller arranged in the PLC control unit can automatically control and change the working states of the concentric tube jet pump and the plunger pump, so that the device can automatically control exploitation;
3. the PLC control unit is connected with a central management unit through the second wireless unit, the central management unit transmits information of a PLC controller controlled by a human-computer interface through a third wireless unit, and remote control can be performed on a remote concentric pipe jet pump and a remote plunger pump, so that the device can remotely control exploitation;
4. three groups of wireless units are adopted among the data acquisition unit, the PLC control unit and the central management unit for transmission of data is stable, and data transmission load is reduced.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic diagram of a detail structure a0 in fig. 1.
In the figure: the device comprises a field working unit 1, a data acquisition unit 2, a PLC control unit 3, a central management unit 4, a concentric pipe jet pump 5, a plunger pump 6, a high-pressure automatic regulating valve 7, a detection instrument 8, a jet pump frequency converter 9, a plunger pump frequency converter 10, a first wireless unit 11, a data processor 12, a PLC controller 13, a second wireless unit 14, a human-computer interface 15, a third wireless unit 16, a storage unit 17, a high-pressure flow meter 18 and a concentration detector 19.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 and 2, a full-automatic control device for a concentric tube jet pump of a cluster well of coal bed methane comprises an on-site working unit 1, a data acquisition unit 2, a PLC control unit 3 and a central management unit 4, wherein the on-site working unit 1 is provided with a concentric tube jet pump 5, the concentric tube jet pump 5 is connected with a plunger pump 6 through a pipeline, high-pressure automatic regulating valves 7 and a plurality of groups of detection instruments 8 of different types are respectively arranged on connecting pipelines of the concentric tube jet pump 5 and the plunger pump 6, the concentric tube jet pump 5 and the plunger pump 6 are respectively connected with a jet pump frequency converter 9 through data lines, the device comprises a plunger pump frequency converter 10, a data acquisition unit 2 and a data processor 12, wherein the data processor 12 is respectively connected with a detection instrument 8, a concentric pipe jet pump 5, a plunger pump 6, a high-pressure automatic regulating valve 7, a jet pump frequency converter 9 and the plunger pump frequency converter 10; data acquisition unit 2 is connected with PLC the control unit 3, PLC the control unit 3 is including PLC controller 13, second wireless unit 14, PLC controller 13 and jet pump converter 9, plunger pump converter 10, high-pressure automatic regulating valve 7 is connected, PLC the control unit 3 is through 14 wireless connection central management unit 4 of second wireless unit, data acquisition unit 2 is through 11 wireless connection central management unit 4 of first wireless unit, central management unit 4 is including man-machine interface 15, third wireless unit 16, memory cell 17, central management unit 4 is through third wireless unit 16 and 3 wireless connection of PLC the control unit, memory cell 17, man-machine interface 15 is connected with third wireless unit 16 through the data line respectively.
In the invention, the detection instrument 8 adopts the high-pressure flowmeter 18 and the concentration detector 19, the connection interfaces among the components in the data acquisition unit 2, the PLC control unit 3 and the central management unit 4 adopt RS485 interfaces, and the adoption of the RS485 interfaces can ensure the data transmission effect and ensure the stable data transmission; the central management unit 4 is internally provided with a configuration matched with the exploitation of the coal bed gas cluster well, the configuration can directly and accurately show the working condition so as to be convenient for workers to observe, and the central management unit 4 is internally provided with an alarm unit which can give an alarm when the exploitation process fails so as to remind the workers; the central management unit 4 is provided with a server in a matched manner, the server is connected with the central management unit 4 through a third wireless unit 16, the server can automatically backup data, the requirement of later work is ensured, and a powerful database is established; the central management unit 4 is provided with a working computer which is connected with a printer, and the printer can export data so as to facilitate checking and research; the first wireless unit 11, the second wireless unit 14 and the third wireless unit 16 are respectively provided with wireless base stations in a matching manner, the wireless base stations are installed at different positions and in different numbers according to actual conditions, and the wireless base stations are mainly arranged to solve the problem of unstable transmission signals caused by mountain area transmission or over-distance; PLC the control unit 3 sets up the control cabinet, is provided with control button on the control cabinet and passes through the data line with PLC controller 13 and be connected for PLC the control unit 3 has two kinds of modes of automatic control and manual control, makes things convenient for the work demand.
The working principle of the invention is as follows: when in use, the data processor 12 in the data acquisition unit 2 can electrically parameter the running states of the concentric pipe jet pump 5 and the plunger pump 6 in the mining process; the working frequency of the jet pump frequency converter 9 and the plunger pump frequency converter 10; the parameters of the concentration of the produced gas, the pressure of the concentric pipe jet pump 5 and the plunger pump 6, the wellhead injection flow rate, the injection pressure and the outlet flow rate detected by the detection instrument are integrated and processed, then the integrated parameters are transmitted to the central management unit 4 by the first wireless unit 11, meanwhile, the control information and the adjustment parameters in the PLC control unit 3 are also transmitted to the central management unit 4 by the second wireless unit 14, and the central management unit 4 receives the parameters and then is arranged and displayed through a human-computer interface 15 to perform remote data monitoring;
the PLC 13 in the PLC control unit 3 can automatically control the operation of the concentric tube jet pump 5 with automatic frequency conversion, the automatic start and stop of the concentric tube jet pump 5 and the frequency modulation of the concentric tube jet pump 5 through a preset PLC program, and carry out the coupling adjustment among the injection flow, the injection pressure and the jet pump frequency converter 9 according to the parameters detected by the detecting instrument so as to carry out the automatic work of the mining process;
the PLC control unit 3 can be controlled through a human-computer interface 15 in the central management unit 4, control information of the PLC control unit is transmitted by a third wireless unit 16, so that the mining process can be remotely controlled, the configuration set in the central management unit 4 is used for displaying the condition of the mining process all the time, the alarm unit can perform alarm operation after an accident occurs, at the moment, a worker can solve the condition of each group of parameters through the human-computer interface 15, and adjust corresponding instruments or stop the mining operation through remote control.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (7)

1. The utility model provides a full automatic control device of concentric pipe jet pump of coal bed gas cluster well, includes site work unit (1), data acquisition unit (2), PLC the control unit (3), central management unit (4), its characterized in that: the field working unit (1) is provided with a concentric tube jet pump (5), the concentric tube jet pump (5) is connected with a plunger pump (6) through a pipeline, the connecting pipeline of the concentric tube jet pump (5) and the plunger pump (6) is provided with a high-pressure automatic regulating valve (7) and a plurality of groups of detecting instruments (8) of different types, the concentric pipe jet pump (5) and the plunger pump (6) are respectively connected with a jet pump frequency converter (9) and a plunger pump frequency converter (10) through data lines, the data acquisition unit (2) comprises a first wireless unit (11) and a data processor (12), the data processor (12) is respectively connected with the detection instrument (8), the concentric pipe jet pump (5), the plunger pump (6), the high-pressure automatic regulating valve (7), the jet pump frequency converter (9) and the plunger pump frequency converter (10); data acquisition unit (2) are connected with PLC the control unit (3), PLC the control unit (3) is including PLC controller (13), second wireless unit (14), PLC controller (13) with jet pump converter (9), plunger pump converter (10), high pressure automatically regulated valve (7) are connected, PLC the control unit (3) are through second wireless unit (14) wireless connection central management unit (4), data acquisition unit (2) are through first wireless unit (11) wireless connection central management unit (4), central management unit (4) are including man machine interface (15), third wireless unit (16), memory cell (17), central management unit (4) through third wireless unit (16) with PLC the control unit (3) wireless connection, memory cell (17), The human-computer interface (15) is connected with a third wireless unit (16) through data lines respectively.
2. The full-automatic control device for the concentric pipe jet pump of the coal bed methane cluster well, according to claim 1, is characterized in that: the detection instrument (8) adopts a high-pressure flowmeter (18) and a concentration detector (19), and RS485 interfaces are adopted as connection interfaces among all parts in the data acquisition unit (2), the PLC control unit (3) and the central management unit (4).
3. The full-automatic control device for the concentric pipe jet pump of the coal bed methane cluster well, according to claim 1, is characterized in that: the central management unit (4) is internally provided with a configuration matched with coal bed gas cluster well exploitation, and the central management unit (4) is internally provided with an alarm unit.
4. The full-automatic control device for the concentric pipe jet pump of the coal bed methane cluster well, according to claim 1, is characterized in that: the central management unit (4) is provided with a server in a matched mode, and the server is connected with the central management unit (4) through a third wireless unit (16).
5. The full-automatic control device for the concentric pipe jet pump of the coal bed methane cluster well, according to claim 1, is characterized in that: the central management unit (4) is provided with a work computer, and the work computer is connected with a printer.
6. The full-automatic control device for the concentric pipe jet pump of the coal bed methane cluster well, according to claim 1, is characterized in that: the first wireless unit (11), the second wireless unit (14) and the third wireless unit (16) are respectively provided with a wireless base station in a matching way, and the wireless base stations are installed at different positions and in different numbers according to actual conditions.
7. The full-automatic control device for the concentric pipe jet pump of the coal bed methane cluster well, according to claim 1, is characterized in that: the PLC control unit (3) is provided with a control console, and the control console is provided with a control button and is connected with the PLC controller (13) through a data line.
CN201920500128.2U 2019-04-15 2019-04-15 Full-automatic control device of concentric pipe jet pump of coal bed gas cluster well Active CN209908684U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920500128.2U CN209908684U (en) 2019-04-15 2019-04-15 Full-automatic control device of concentric pipe jet pump of coal bed gas cluster well

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920500128.2U CN209908684U (en) 2019-04-15 2019-04-15 Full-automatic control device of concentric pipe jet pump of coal bed gas cluster well

Publications (1)

Publication Number Publication Date
CN209908684U true CN209908684U (en) 2020-01-07

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Country Status (1)

Country Link
CN (1) CN209908684U (en)

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GR01 Patent grant
GR01 Patent grant
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TR01 Transfer of patent right

Effective date of registration: 20210304

Address after: 100728 No. 22 North Main Street, Chaoyang District, Beijing, Chaoyangmen

Patentee after: China Petroleum & Chemical Corp.

Patentee after: EAST CHINA BRANCH OF SINOPEC

Patentee after: SINOPEC LINFEN COALBED GAS BRANCH Co.

Address before: 041000 No.24, Lingang Road, Yaodu District, Linfen City, Shanxi Province

Patentee before: SINOPEC LINFEN COALBED GAS BRANCH Co.