CN104514520A - Plunger gas lift controller and method with remote transmission and remote control function - Google Patents

Abstract

A plunger gas lift controller with remote transmission and control functions and a method belong to the technical field of oil and gas fields. The controller is integrated with the pressure gauge, and the casing gas is directly connected to the pressure sensor through a special gas source pipeline; the aluminum alloy shell combines all the components into a whole; the keyboard consists of four buttons; the front cover is connected with the display and the keyboard; the display is connected with the main board; the junction boxes are directly connected by adopting joints; the rear cover is connected with the battery, and the azimuth angle adjusting screw is connected with the solar panel; the transmission antenna is connected with the computer and the remote transmission system to transmit the plunger operation data; the solar cell panel is installed on the top of the controller. The invention prolongs the production period of the self-injection, reduces the manual operation cost, prolongs the well repair operation period and saves the well repair operation cost; the length of the accumulated liquid segment can be effectively reduced, and the yield of the gas well is improved.

Description

Plunger gas lift controller and method with remote transmission and remote control function

technical field

The invention relates to a plunger gas lift controller with remote transmission and remote control functions and a method, belonging to the technical field of oil and gas fields.

Background technique

In recent years, with the Southwest oil and gas fields, there are more and more water-filled gas wells such as low permeability, low production, low pressure, bubble discharge, gas lift, and interleaving, and the production of gas wells is increasingly affected by the initial cost investment, environmental protection of gas wells, and difficult operation and maintenance. Restricted by factors such as ease of use, plunger gas lift, as a clean, environmentally friendly, and convenient maintenance and management drainage gas recovery technology, has been applied in more than 20 wells in Southwest Oil and Gas Fields, in order to ensure stable production of old gas fields and improve single well recovery It has played an increasingly important role in terms of efficiency, achieved good technical, economic and social benefits, and has gradually formed a set of practical and effective drainage and gas recovery technology for Sichuan-Chongqing water and gas fields.

In the field application process of the introduced plunger gas lift technology, there are problems such as the plunger controller often shutting down for no reason, no display on the control screen, automatic change of the production system, high procurement cost, and long procurement cycle, which lead to the occurrence of plunger controllers. After the failure, the gas well cannot be produced normally, and the well is forced to be shut down in severe cases; the imported plunger controller does not have the functions of automatic recording, transmission, and remote control of the plunger production data, which leads to delays in the initial stage of plunger trial operation and debugging. On-site first-line debugging, unable to continuously track and analyze the operation of each cycle of the plunger, debugging efficiency and long cycle; conventional pressure sensors are transmitted to the controller through cables, which are greatly affected by the external environment, and may cause gas wells to Unstable production system, difficult debugging, etc., seriously restrict the application of drainage and gas recovery technology promotion.

Contents of the invention

In order to overcome the deficiencies of the prior art, the present invention provides a plunger gas lift controller with remote transmission and remote control functions.

A plunger gas lift controller with remote transmission and remote control function. The controller is integrated with the pressure gauge, and the controller is integrated with the pressure gauge. The casing gas is directly connected to the pressure sensor through a special gas source pipeline; the aluminum alloy casing connects all The components are combined into a whole; the keyboard is composed of four buttons; the front cover is connected to the display and the keyboard; the display is connected to the motherboard; The transmission system is connected to transmit the plunger operation data; the solar panel is installed on the top of the controller.

A plunger gas lift control method with a remote transmission and remote control function, comprising the following steps;

The casing gas is directly connected to the pressure sensor through a dedicated gas source pipeline, and the pressure sensor reads the casing pressure;

On-site setting of plunger well basic data and operating parameters, the monitor displays oil, casing pressure, well opening and closing time, plunger up time and other plunger operating parameters in real time, the main board is the core component of the controller, data processing The terminal can automatically calculate the running speed of the plunger each time, judge whether it is within the set operating range, etc., and optimize the design of the controller operating program according to the basic conditions of the gas well to improve the stability and reliability of the plunger controller;

Adjust the direction of the solar panel and use threaded connection to ensure that the sunlight can charge the Ni-MH battery for a long time;

The transmission antenna is connected with the computer and the remote transmission system to transmit the operation data of the plunger, and perform remote control and remote debugging of the operation parameters of the plunger controller. The internal battery is charged to ensure that the battery can work for a long time;

For the plunger process well, the production is switched on and off in an optimized mode such as time and pressure to ensure that the plunger reaches the wellhead blowout preventer every time;

The controller is integrated with the pressure gauge, and the pressure gauge is directly guided through the gas source pipeline to improve the stability of the casing pressure monitoring and reduce the external influence on the cable transmission;

The casing pressure is transmitted to the position of the pressure sensor of the controller through the high-pressure air source pipeline, and the oil pressure, the arrival of the plunger and other related parameters are transmitted to the position of the junction box through the cable, and all the data enter the main board of the core component of the controller for data analysis and processing , automatically optimize and form the well plunger operation system, the parameters recorded by the controller are transmitted to the server through the transmission antenna, the server transmits data to the client through different ports, and the client installs the supporting remote control software, Debug the plunger operation system to make the plunger operation reach the optimal state and realize the stable operation of the plunger gas lift process well.

The advantages of the present invention are:

The plunger gas lift drainage gas recovery technology is used as a successor process after the gas wells are produced spontaneously. For intermittent production wells, the self-spraying production period can be extended, the labor cost can be reduced, the workover operation period can be extended, and the workover operation cost can be saved; Interval opening of self-flowing ability can effectively restore the self-flowing ability of the well and simplify gas well management; for gas wells with continuous self-flowing ability but long bottom-hole liquid accumulation section, the length of liquid accumulation section can be effectively reduced, Improve the production of gas wells; for bubble drainage process wells, effectively slow down the liquid accumulation rate in the wellbore, reduce the amount of chemical agents, or even not use foam drainage agents, reduce the damage of chemical substances to the production layer and reduce environmental pollution; assist fluid drainage after workover , can quickly restore production capacity of the gas well, reduce the impact of workover fluid on the production layer, combined with continuous gas lift technology, can effectively reduce the gas consumption of continuous gas lift, and improve the liquid drainage capacity.

Description of drawings

A more complete and better understanding of the invention, and many of its attendant advantages, will readily be learned by reference to the following detailed description when considered in conjunction with the accompanying drawings, but the accompanying drawings illustrated herein are intended to provide a further understanding of the invention and constitute A part of the present invention, the exemplary embodiment of the present invention and its description are used to explain the present invention, and do not constitute an improper limitation of the present invention, as shown in the figure:

Fig. 1 is a structural schematic diagram of the present invention.

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Detailed ways

Obviously, many modifications and changes made by those skilled in the art based on the gist of the present invention belong to the protection scope of the present invention.

Embodiment 1: As shown in Figure 1,

A plunger gas lift controller with remote transmission and remote control function, pressure sensor 1; aluminum alloy casing 2; keyboard 3; front cover 4; display 5; main board 6; junction box 7; battery 8; rear cover 9; solar panel Azimuth adjustment screw 10; transmission antenna 11; solar panel 12; pressure sensor 1 is connected to aluminum alloy casing 2, rear cover 9 is connected to battery 8, battery 8 is connected to junction box 7, junction box 7 is connected to main board 6, main board 6 is connected to display 5 , the display 5 is connected to the front cover 4, the keyboard 3 is installed in the aluminum alloy casing 2, the top of the aluminum alloy casing 2 is connected to the solar panel azimuth adjustment screw 10, the solar panel azimuth adjustment screw 10 is connected to the solar panel 12, and the solar panel 12 Connect the transmission antenna 11.

By setting the operating parameters of the plunger in the controller, the plunger is guaranteed to run stably, so that the gas well can achieve a better drainage and gas production effect.

The pressure sensor 1 directly connects the casing gas to this place through a special gas source pipeline to read the casing pressure, reducing the transmission of the pressure sensor to the controller through the cable, which is greatly affected by the external environment. The gas well production system may be unstable during production, and the pressure sensor is embedded in the lower end of the aluminum alloy casing.

The aluminum alloy casing 2 has a certain explosion-proof function to prevent rainwater from entering the controller, and all components are combined into a whole, and corresponding limiting grooves are provided inside to facilitate the installation of other components.

The keyboard 3 is composed of four buttons, which can set the basic data and operating parameters of the plunger well on site, and is installed in the casing through the fixed card slot.

The front cover 4 is used for the display and keyboard of mechanical protection control, has waterproof function, adopts threaded connection, and can be opened and closed conveniently and freely by rotation.

The display 5 displays oil, casing pressure, well opening and closing time, plunger up time and other plunger operating parameters in real time, and is installed in the casing through a fixed slot.

The main board 6 is the core component of the controller, and the data processing terminal can automatically calculate the running speed of the plunger each time, judge whether it is within the set operating range, etc., and can optimize the design of the controller's operating program according to the basic conditions of the gas well to improve the plunger control. To ensure the stability and reliability of the device, it is installed in the shell through the fixed card slot.

The junction box 7 is used to connect the battery valve, arrival sensor, pressure and remote transmission, remote control and other lines. It directly adopts a special connector, which is convenient and fast to connect, and is installed in the shell through a fixed card slot.

The battery 8 provides control work power, charges the battery through a solar panel, and is installed in the casing through a fixing slot.

Back cover 9 is used for mechanical protection control battery end, has waterproof function, adopts threaded connection, opens and closes by rotation.

The solar panel azimuth adjustment screw 10 adjusts the direction of the solar panel and is threaded to ensure that the sunlight can charge the Ni-MH battery for a long time.

The transmission antenna 11 can be connected with the computer and the remote transmission system to transmit the operation data of the plunger, and perform remote control of the plunger controller and remote debugging of operation parameters, etc. The antenna is placed on the back of the solar panel.

The solar panel 12 is installed on the top of the controller for receiving solar energy to charge the battery in the controller to ensure that the battery can work for a long time.

Embodiment 2: As shown in Figure 1,

A new plunger gas lift controller with remote transmission and remote control function,

As shown in Figure 1, the new plunger gas lift controller with remote transmission and remote control function is installed near the wellhead, and professional technicians set the plunger operating parameters in the controller on the field or office computer, through time, pressure Automatically control the switch of the plunger gas lift process well in equal mode; the data transmission antenna can transmit the oil pressure, casing pressure and plunger operation parameters of the gas well to the office computer to realize remote monitoring and remote debugging of the plunger operation system ; The pressure sensor and controller are integrated to ensure more stable production in the pressure control mode; the independent optimization function of the control system can automatically optimize the plunger operation system according to the production characteristics of the gas well, and improve the operation efficiency of the plunger process well.

A plunger gas lift controller with remote transmission and remote control function, comprising a pressure sensor 1; an aluminum alloy casing 2; a keyboard 3; a front cover 4; a display 5; a main board 6; a junction box 7; a battery 8; Panel azimuth adjustment screw 10; transmission antenna 11; solar panel 12.

The pressure sensor 1 is directly connected to the casing gas through a dedicated gas source pipeline to read the casing pressure, which reduces the transmission of the pressure sensor to the controller through the cable, which is greatly affected by the external environment. Through the pressure mode switch The gas well production system may be unstable during well production, and the pressure sensor is embedded in the lower end of the aluminum alloy casing. The aluminum alloy casing 2 has a certain explosion-proof function, prevents rainwater from entering the controller, and combines all components into a whole with corresponding limit slots inside. The keyboard 3 is composed of four buttons, which can set the basic data and operating parameters of the plunger well on site, and is installed in the housing through the fixed card slot. The front cover 4 is used for the display and keyboard of mechanical protection control, has waterproof function, and adopts threaded connection, which can be opened and closed conveniently and freely by rotation. Display 5, real-time display of oil, casing pressure, opening and closing time, plunger up time and other plunger operating parameters, installed in the casing through a fixed slot. Main board 6, the core part of the controller, data processing terminal, automatically calculates the plunger’s running speed each time, judges whether it is within the set operating range, etc., and can optimize the design of the controller’s operating program according to the basic conditions of the gas well to improve the plunger The stability and reliability of the controller are installed in the housing through the fixed card slot. The junction box 7 is used to connect the battery valve, arrival sensor, pressure and remote transmission, remote control and other lines. It directly adopts a special connector, which is convenient and fast to connect, and is installed in the housing through a fixed card slot. The battery 8 provides power for controlling work, charges the battery through a solar panel, and is installed in the housing through a fixed card slot. The back cover 9 is used for mechanical protection to control the end of the battery, has a waterproof function, is threaded, and is opened and closed by rotation. The solar panel azimuth adjustment screw 10 adjusts the direction of the solar panel and is threaded to ensure that the sunlight can charge the Ni-MH battery for a long time. The transmission antenna 11 can be connected with a computer and a remote transmission system to transmit plunger operation data, and perform remote control of the plunger controller and remote debugging of operating parameters, etc. The antenna is placed on the back of the solar panel. The solar panel 12 is installed on the top of the controller for receiving solar energy to charge the battery in the controller to ensure that the battery can work for a long time.

A set of plunger gas lift controller with remote transmission and remote control function is installed near the wellhead. Professional technicians set the plunger operating parameters in the controller on the field or office computer to ensure that the plunger can be locked in the downhole clamper buffer spring assembly. It can run stably in the blowout preventer at the wellhead, improve the liquid-carrying production capacity of the gas well, prolong the production cycle of self-spraying, reduce the cost of manual operation, prolong the cycle of workover operation, save the cost of workover operation, etc., especially the application of remote transmission and remote control , greatly reducing the fatigue and driving safety risks of professional technicians, saving a lot of transportation costs, realizing the digitalization and intelligence of plunger gas lift process wells, realizing the clean and environmentally friendly production of gas wells, and improving the single well recovery rate of water gas wells .

The new type plunger gas lift controller with remote transmission and remote control function can be installed near the wellhead, and the plunger process well will pass the time, pressure and other optimization modes to switch well production, so as to ensure that the plunger reaches the wellhead blowout preventer every time. To better drainage and gas recovery effect. The controller is integrated with the pressure gauge, and the pressure gauge is directly guided through the gas source pipeline, which can improve the stability of casing pressure monitoring and reduce the external influence on cable transmission; it has an independent optimization function, which can automatically optimize the plunger according to the production characteristics of the gas well The operation system improves the operation efficiency of the plunger process well; it has the functions of automatic recording of plunger operation parameters, wired and wireless data transmission, remote control and remote parameter setting, etc., which is convenient for technicians to dynamically monitor the operation status of the plunger gas lift process well. Tracking and evaluation has realized the digitalization and intelligence of the plunger gas lift process well, and it is better and more convenient to carry out the optimization, debugging and operation and maintenance of the production system of the plunger gas lift process well. The new plunger controller has the characteristics of stable working state, data storage, recording, transmission, remote control and other functions, convenient debugging of operating parameters, high degree of automation, short maintenance cycle and high efficiency.

The controller transmits the sleeve pressure to the position of the pressure sensor of the controller through the high-pressure air source pipeline, and the oil pressure, plunger arrival and other related parameters are transmitted to the position of the junction box through the cable, and all the data enter the main board of the core part of the controller for data processing. Analysis and processing, automatic optimization and formation of the plunger operation system of the well, various parameters recorded by the controller are transmitted to the server through the transmission antenna, the server transmits data to the client through different ports, and the client installs a supporting remote transmission The control software can manually debug the plunger operation system, so that the plunger operation can reach the optimal state, and realize the stable operation of the plunger gas lift process well.

Tool performance indicators:

1. The working pressure level of the pressure gauge is 35MPa, the precision of the pressure gauge can reach 2‰FS, and the pressure gauge level can also be calibrated according to the needs of the site;

2. Overall working environment: -25～70℃;

3. Power supply system: 2.2Ah/6V Ni-MH battery + 3W solar panel;

4. The control interface is user-friendly, and the plunger operating parameters can be set through the controller's own keyboard or after communicating with the computer;

5. The controller can independently optimize the plunger operation system according to the production characteristics of the gas well;

6. The plunger operation data can be transmitted through GPRS, which can realize the remote transmission dynamic monitoring of the plunger operation data, and can control the plunger gas lift process well and set remote parameters.

As mentioned above, although the Example of this invention was demonstrated in detail, it is obvious to those skilled in the art that many modifications can be made as long as the inventive point and effect of this invention are not substantially deviated. Therefore, all such modified examples are also included in the protection scope of the present invention.

Claims (2)

1. have the plunger lift controller that function is far controlled in teletransmission, it is characterized in that: controller and pressure gauge one, controller and pressure gauge one, be connected directly between pressure sensor by special source gas line by casing gas; All component combinations are become as a whole by aluminum alloy casing; Keyboard is made up of four buttons; Protecgulum connects display and keyboard; Display connects mainboard; Junction box directly adopts joint to connect; Bonnet connects battery, and azimuth adjustment screw connects solar panels; Transmit antenna is connected with computer, remote transmitting system the transmission carrying out plunger service data; Solar panel is arranged on controller top.

2. there is teletransmission and far control a function plunger gaslift control method, it is characterized in that containing following steps;

By special source gas line by direct for casing gas Bonding pressure sensor, pressure sensor reads casing pressure;

The scene setting of plunger well basic data and operational factor is carried out at scene, display shows oil, casing pressure, open and close well time, plunger upstream time and other plunger operational factor in real time, mainboard is the core component of controller, data processing terminal, automatic calculating plunger each run speed, judge whether setting range of operation in etc., and according to gas well basic condition to optimal design controller working procedure, stability, the reliability of plunger controller can be improved;

Regulate the direction of solar panel, employing is threaded, and guarantees that solar energy charges to Ni-MH battery for a long time;

Transmit antenna is connected with computer, remote transmitting system the transmission carrying out plunger service data, and Long-distance Control and operational factor remote debugging etc. are carried out to plunger controller, solar panel is arranged on controller top, for receiving solar energy, for the battery charging in controller, guarantee that battery can work long hours;

Plunger process well is produced by the Optimizing Mode such as time, pressure switch well, guarantees that plunger arrives in shaft mouth anti-blowout pipe at every turn;

Controller and pressure gauge one, by source gas line direct impulse pressing pressure meter place, improve the stability of casing pressure monitoring, lower the ectocine that cable transmission is subject to;

By high-pressure air source pipeline, casing pressure is transferred to controller pressure sensor position, oil pressure, plunger arrive and other relevant parameter by wire transmission to junction box position, all data enter in controller core parts mainboard, carry out the analyzing and processing of data, Automatic Optimal also forms this well plunger operation system, what the parameters of controller record carried out data by transmit antenna transfers to server end, server transmits data to client by different port, client installs supporting teletransmission control software design, carry out the debugging that plunger runs system, plunger is run and arrives optimum state, realize the stable operation of plunger lift process well.