CN214944178U - Containing CO2Well automated production mode - Google Patents
Containing CO2Well automated production mode Download PDFInfo
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- CN214944178U CN214944178U CN202121257677.5U CN202121257677U CN214944178U CN 214944178 U CN214944178 U CN 214944178U CN 202121257677 U CN202121257677 U CN 202121257677U CN 214944178 U CN214944178 U CN 214944178U
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Abstract
The true bookUse of a new type to disclose a catalyst containing CO2A well automated production mode comprising: an electric control cabinet, wherein an RTU, a PLC, an intelligent ammeter and a frequency converter are arranged in the electric control cabinet; a motor of the oil pumping unit; a wellhead pressure sensor; a wellhead temperature sensor; the buffer tank is internally provided with a buffer tank liquid level sensor, a buffer tank temperature sensor, a buffer tank pressure sensor and an electric heating rod; a wellhead electric block valve; an oil transfer pump; the process electric heating belts are used for carrying out heat preservation and heating on the production pipeline; and the video monitoring equipment is used for monitoring the field production picture. The utility model contains CO2The real-time monitoring of production data such as oil well oil pressure, casing pressure, liquid outlet temperature and the like is realized in the production process of the well automatic production mode, so that the state monitoring during open flow is realized.
Description
Technical Field
The utility model relates to an oil extraction equipment, more precisely, be one kind and contain CO2Well automated production mode.
Background
Low permeability reservoir is CO2The main position for the application of the enhanced oil recovery technology is to be driven. In view of the good effect of the early test of the oil field, CO is injected2Driving scale up continuously, CO2The number of affected wells continues to increase. CO22When the effective well is produced, because the oil pipe production is seriously influenced by gas, a production mode that oil and a sleeve simultaneously enter a flow is adopted, an oil nozzle is additionally arranged at an outlet to control the production, and the phenomenon that penetrating gas instantly enters a long-distance production flow in a large quantity to cause cavitation of a booster pump and even cause cavitation of a large quantity of CO (carbon monoxide)2The expansion endotherm leads to severe consequences of process plugging. According to field test and groping, a buffer tank is installed on the field, the produced liquid enters the buffer tank after being subjected to oil and sleeve choke control, and then is heated, settled and degassed, and the produced liquid in the buffer tank is conveyed into a long-distance conveying process through an oil conveying pump.
In order to guarantee safe production, the primary class station arranges a full-time staff to stay on the site for 24 hours, intensively inspects the production site, and timely manually starts and stops related equipment such as an oil transfer pump. The production mode completely depends on manual work, has high labor intensity, low labor efficiency and low automation level, and can not meet the requirements of an information-based oil field.
SUMMERY OF THE UTILITY MODEL
The utility model discloses solve the technical problem that prior art exists to a contain CO2 well automated production mode is provided.
The above technical problem of the present invention can be solved by the following technical solutions:
containing CO2An automated well production model, wherein said CO-containing well is characterized by2The well automated production mode comprises:
an electric control cabinet, wherein an RTU, a PLC, an intelligent ammeter and a frequency converter are arranged in the electric control cabinet;
the pumping unit motor is arranged on a base of a pumping unit and drives the pumping unit;
the wellhead pressure sensor is arranged at the production wellhead of the oil well;
the wellhead temperature sensor is arranged at the production wellhead of the oil well;
the buffer tank is internally provided with a buffer tank liquid level sensor, a buffer tank temperature sensor, a buffer tank pressure sensor and an electric heating rod;
the wellhead electric block valve is arranged on an oil well production wellhead, and is arranged on a production pipeline from the oil well production wellhead to the buffer tank;
the oil transfer pump is arranged at the downstream of the buffer tank, an oil transfer pump motor is arranged on the oil transfer pump, an inlet pressure sensor is arranged at the inlet of the oil transfer pump, and an outlet pressure sensor is arranged at the outlet of the oil transfer pump;
the process electric heating belts are used for carrying out heat preservation and heating on the production pipeline;
and the video monitoring equipment is used for monitoring the field production picture.
Preferably, the electric control cabinet and the buffer tank are arranged on the ground surface.
The utility model contains CO2The well automation production mode has the following advantages:
(1) and monitoring production data in real time. In the production process, the real-time monitoring of production data such as oil well oil pressure, casing pressure, effluent temperature and the like is required to be realized, so that the state monitoring during open flow is realized. After the oil well produced liquid is blown into the buffer tank, the liquid level, the temperature and the pressure of the tank are monitored in real time. When the output liquid of the buffer tank enters an oil conveying pump and is conveyed to a long-conveying-flow pipeline, the running condition of the oil conveying pump and the front and rear pressures of the pump are monitored, so that the pump holding condition is prevented;
(2) and (4) starting and stopping control remote control. The key point of realizing unattended operation lies in that the original equipment needing the staff to go to the site for manual operation can be controlled in a remote operation mode to replace manual operation. The main control points comprise the starting and stopping of the oil pumping unit, the switching of a production process cut-off valve, the starting and stopping of the heating control of the buffer tank, the starting and stopping of the heating control of the process and the starting and stopping of the oil transfer pump;
(3) and (5) visualizing the field monitoring. Firstly, the key area of the production field is monitored in real time, and abnormal conditions are found in time. And secondly, when the equipment is remotely started and stopped, the surrounding environment of the equipment needs to be patrolled to operate.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 shows that the catalyst contains CO2A data acquisition schematic of a well automation production mode;
FIG. 2 shows that the catalyst contains CO2And (3) a start-stop control schematic diagram of a well automatic production mode.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the scope of the present invention can be more clearly and clearly defined.
As shown in FIG. 1, the CO-containing2An RTU2, a PLC3, an intelligent electric meter 4 and a frequency converter 5 are arranged in an electric control cabinet 1 in a well automatic production mode. The RTU2 is used as a core element of the whole production mode and is responsible for data integration uploading to a command system and command issuing of a control platform. The intelligent electric meter 4 is used for measuring the power consumption of well site electric equipment and heating equipment. The frequency converter 5 is used for controlling the starting and stopping of the pumping unit motor 6 and the oil transfer pump motor 14. The pumping unit motor 6 is installed on the base of the pumping unit 61. Installing a wellhead pressure sensor 8 at the production wellhead of the oil well to measure the wellheadOil pipe and casing production pressure. And installing a wellhead temperature sensor 7 at the production wellhead of the oil well, and measuring the temperature of liquid produced at the wellhead. And installing a wellhead electric block valve 9 on a production pipeline from the wellhead of the oil well to the buffer tank for realizing emergency closing of the process.
A plurality of process electric heating belts 10 are installed on the production pipeline and used for heat preservation and heating of the production pipeline.
A buffer tank 16 is arranged at the downstream of the oil well production wellhead, and a buffer tank liquid level sensor 12, a buffer tank temperature sensor 13, a buffer tank pressure sensor 18 and an electric heating rod 11 are arranged in the buffer tank 16. This buffer tank level sensor 12 is used for measuring jar interior production liquid level, and buffer tank temperature sensor 13 is used for measuring jar interior production liquid temperature, and buffer tank pressure sensor 18 is used for measuring jar internal pressure, and electrical heating rod 11 is used for heating the buffer tank.
On the production line from the surge tank 16 to the feed pump 17, an inlet pressure sensor 171 is installed for measuring the feed pump inlet pressure. An outlet pressure sensor 172 is mounted on the delivery pump outlet line for measuring the delivery pump outlet pressure. The video monitoring device 15 is installed at a production site and used for monitoring production pictures at the site.
Fig. 1 is a schematic diagram of the data acquisition system of the present invention. On the premise of meeting the requirements of production field data monitoring points, according to each sensor equipment data transmission protocol, the field equipment acquisition communication modes can be divided into three types, namely: RS485 communication, ZIGBEE communication and 4-20MA communication. The intelligent electric meter 4 and the frequency converter 5 are communicated with the RTU2 through RS485 protocols. The wellhead temperature sensor 7 and the pressure sensor 8 are communicated with the RTU2 through a ZIGBEE protocol. The liquid level sensor 12 and the buffer tank temperature sensor 13 are communicated with the PLC3 through a 4-20MA protocol.
As fig. 2 is the utility model discloses open and stop control schematic diagram. The RTU2 realizes the start-stop control of the pumping unit motor 6 and the oil delivery pump motor 14 by controlling the start-stop of the frequency converter 5, and the PLC3 realizes the on-off control of the wellhead electric block valve 9, the process electric heating belt 10 and the electric heating rod 11.
The utility model is further explained and understood by the concrete production example.
And (3) sending a starting instruction of the oil pumping unit through the remote control platform, starting the frequency converter 5 according to the instruction operating frequency after the RTU2 receives the instruction, starting the operation of the motor 6 of the oil pumping unit, and starting the production of the oil well. Meanwhile, a remote control platform issues a wellhead opening flow heat preservation and buffer tank heating instruction, and after the PLC3 receives the instruction, the flow electric heating belt 10 and the electric heating rod 11 of the wellhead are opened. The oil well produced liquid is produced by oil and a sleeve, and the wellhead pressure sensor 8 and the wellhead temperature sensor 7 are used for measuring wellhead production pressure and temperature data and monitoring the wellhead production condition to be normal. The produced liquid is blown into a buffer tank 16 through a well production pipeline, and the production safety of the buffer tank is monitored through data measured by a buffer tank pressure sensor 18 arranged on the buffer tank through a buffer tank liquid level sensor 12 and a buffer tank temperature sensor 13. When the liquid level in the tank reaches the oil drainage liquid level, a starting instruction of the oil delivery pump is sent by the remote control platform, the oil drainage heat preservation is started, the oil delivery pump motor 14 starts to operate, the produced liquid in the buffer tank is input into the long delivery pipeline, and the safety of the oil drainage process is monitored by the pressure sensors arranged in front of and behind the oil delivery pump 17.
In addition, when the electric heating rod 11 is started, the temperature value measured by the buffer tank temperature sensor 13 reaches the upper limit value of the temperature set in the electric control cabinet 1, the heating of the buffer tank 16 is stopped.
In the production process, when the pressure value measured by a wellhead pressure sensor 8 arranged on a wellhead casing pipe exceeds the set upper pressure limit value, an alarm is generated in a command system, the wellhead electric block valve 9 can be controlled to be closed immediately through a remote control platform, and the safety of the production flow is guaranteed.
The utility model contains CO2The well automation production mode has the following advantages:
(1) and monitoring production data in real time. In the production process, the real-time monitoring of production data such as oil well oil pressure, casing pressure, effluent temperature and the like is required to be realized, so that the state monitoring during open flow is realized. After the oil well produced liquid is blown into the buffer tank, the liquid level, the temperature and the pressure of the tank are monitored in real time. When the output liquid of the buffer tank enters an oil conveying pump and is conveyed to a long-conveying-flow pipeline, the running condition of the oil conveying pump and the front and rear pressures of the pump are monitored, so that the pump holding condition is prevented;
(2) and (4) starting and stopping control remote control. The key point of realizing unattended operation lies in that the original equipment needing the staff to go to the site for manual operation can be controlled in a remote operation mode to replace manual operation. The main control points comprise the starting and stopping of the oil pumping unit, the switching of a production process cut-off valve, the starting and stopping of the heating control of the buffer tank, the starting and stopping of the heating control of the process and the starting and stopping of the oil transfer pump;
(3) and (5) visualizing the field monitoring. Firstly, the key area of the production field is monitored in real time, and abnormal conditions are found in time. And secondly, when the equipment is remotely started and stopped, the surrounding environment of the equipment needs to be patrolled to operate.
Without being limited thereto, any changes or substitutions which are not thought of through creative efforts should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.
Claims (2)
1. Containing CO2An automated well production model, characterized in that the automated production model of a CO-containing 2 well comprises:
an electric control cabinet (1), wherein an RTU (2), a PLC (3), an intelligent ammeter (4) and a frequency converter (5) are arranged in the electric control cabinet (1);
the oil pumping machine motor (6), the oil pumping machine motor (6) is arranged on the base of an oil pumping machine (61) and drives the oil pumping machine (61);
a wellhead pressure sensor (8), wherein the wellhead pressure sensor (8) is arranged at the production wellhead of the oil well;
the wellhead temperature sensor (7), the wellhead temperature sensor (7) is arranged at the production wellhead of the oil well;
the buffer tank (16) is internally provided with a buffer tank liquid level sensor (12), a buffer tank temperature sensor (13), a buffer tank pressure sensor (18) and an electric heating rod (11);
the wellhead electric block valve (9) is arranged at an oil well production wellhead, and the wellhead electric block valve (9) is arranged on a production pipeline from the oil well production wellhead to the buffer tank (16);
the oil transfer pump (17) is arranged at the downstream of the buffer tank (16), an oil transfer pump motor (14) is arranged on the oil transfer pump (17), an inlet pressure sensor (171) is arranged at the inlet of the oil transfer pump (17), and an outlet pressure sensor (172) is arranged at the outlet of the oil transfer pump (17);
the production pipeline heat-preservation heating device comprises a plurality of process electric heating belts (10), wherein the process electric heating belts (10) are used for carrying out heat preservation heating on a production pipeline;
and the video monitoring equipment (15) is used for monitoring the field production pictures, and the video monitoring equipment (15) is used for monitoring the field production pictures.
2. CO-containing according to claim 12The automatic production mode of the well is characterized in that the electric control cabinet (1) and the buffer tank (16) are arranged on the ground surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121257677.5U CN214944178U (en) | 2021-06-07 | 2021-06-07 | Containing CO2Well automated production mode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121257677.5U CN214944178U (en) | 2021-06-07 | 2021-06-07 | Containing CO2Well automated production mode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214944178U true CN214944178U (en) | 2021-11-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121257677.5U Active CN214944178U (en) | 2021-06-07 | 2021-06-07 | Containing CO2Well automated production mode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214944178U (en) |
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2021
- 2021-06-07 CN CN202121257677.5U patent/CN214944178U/en active Active
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