Crude oil transmission control device based on intelligent liquid level collection

Abstract

The invention relates to the technical field of oil and gas well testing equipment, in particular to a crude oil transmission control device based on intelligent liquid level acquisition, which comprises a comprehensive control cabinet, an inlet pipeline assembly, an outlet pipeline assembly and a liquid level meter, one end of the inlet pipeline assembly is connected with an inlet of the storage tank through an electric ball valve, the other end of the inlet pipeline assembly is connected to the separator, one end of the outlet pipeline assembly is connected with an outlet of the storage tank through an electric ball valve, the other end of the outlet pipeline assembly is connected to the oil pumping table, and the liquidometer is electrically connected with the control system and used for collecting the liquid level height of a tank area in real time. Remote liquid level metering, tank reversing and transferring operation can be achieved, storage tank liquid level metering is accurate, operation is timely and stable, a metering area is unattended, and risks caused by traditional metering, tank reversing and transferring can be effectively avoided.

Description

Technical Field

[0001] The invention relates to the technical field of oil and gas well testing equipment, and is a crude oil transmission control device based on intelligent liquid level acquisition. Background Art

[0002] In the process of oil resource exploration, development and evaluation, oil testing is a means to discover the existence of oil and gas reservoirs. It is a key link in oil and gas exploration and reservoir understanding. Ground testing and metering technology is a key process for oil and gas data acquisition. The general wellhead high pressure and high-yield local sulfur content put forward higher requirements on the metering technology.

[0003] At present, oil and water metering, tank emptying and liquid injection in the oil testing process are mainly manual operations, which may cause tank overflow due to human error, people falling in and out of the metering tank, and people poisoning by sulfur-containing output. Summary of the invention

[0004] The present invention provides a crude oil transmission control device based on intelligent liquid level collection, which overcomes the shortcomings of the above-mentioned prior art and can effectively solve the problems of operational risks in the prior art such as personnel misoperation causing tank overflow, personnel falling in and out of metering tanks, and personnel poisoning by sulfur-containing outputs.

[0005] One of the technical solutions of the present invention is achieved by the following measures: a crude oil transmission control device based on intelligent liquid level acquisition, including an integrated control cabinet, an inlet pipeline component, an outlet pipeline component and a liquid level meter; Among them, a control system is set inside the integrated control cabinet, which is used to realize remote liquid level measurement, tank emptying and transfer operations through control; One end of the inlet pipe assembly is connected to the inlet of the storage tank through an electric ball valve, and the other end is connected to the separator; Among them, one end of the outlet pipe assembly is connected to the outlet of the storage tank through an electric ball valve, and the other end is connected to the oil pumping platform; Among them, the liquid level meter is electrically connected to the control system and is used to collect the liquid level height of the tank area in real time.

[0006] The following is a further optimization and / or improvement of one of the above-mentioned technical solutions: The above may also include a mobile skid seat, on which the integrated control cabinet and the electric ball valve are mounted, so as to facilitate the installation, movement and disassembly of the components.

[0007] The above-mentioned liquid level meter can be a high-frequency radar liquid level meter.

[0008] The control system mentioned above may be a ground test integrated system, and the ground test integrated system is connected to the liquid level meter via an industrial wireless LAN.

[0009] The integrated control cabinet may also be provided with a manual-automatic switching button, which is electrically connected to the control system and is used for switching between the manual mode and the automatic mode.

[0010] The second technical solution of the present invention is achieved by the following measures: A crude oil transmission control method based on intelligent liquid level acquisition comprises the following steps: Provided is a crude oil transmission control device based on intelligent liquid level collection, the crude oil transmission control device based on intelligent liquid level collection is the above-mentioned crude oil transmission control device based on intelligent liquid level collection; Automatic measurement, the level meter collects the tank area liquid level in real time, and the control system automatically calculates the current return liquid volume and remaining tank capacity; Automatic tank emptying: judge whether the tank is full according to the real-time collected tank area liquid level height, and use electric ball valve to control the opening and closing of each tank inlet and outlet, so that the return fluid will be poured into the next metering tank after the tank is full; Automatic transfer: For tanks that exceed the upper limit of storage volume, the device links the oil pump and the outlet electric ball valve to realize the transfer of the tank return fluid to the transport tank truck.

[0011] The following is a further optimization and / or improvement of the second technical solution of the above invention: When the above-mentioned automatic tank emptying is performed, remote manual intervention and adjustment can be performed according to the on-site well conditions.

[0012] The above can also be provided with manual mode and automatic mode. In manual mode, the user operates the opening and closing of the inlet and outlet valves of each metering tank individually; in automatic mode, the user sets the upper limit liquid level of the metering tank, prepares a prefabricated program, and automatically controls the electric ball valve to switch according to the liquid level in the tank.

[0013] The present invention collects the tank area liquid level in real time by accessing a high-frequency radar level meter, converts the obtained liquid level data from analog to digital, and then uses the on-site industrial wireless LAN to access the ground test integrated system. The data is transmitted to the ground test integrated system for real-time display, so that the metering tank metering, tank emptying and other operations can be remotely controlled or pre-programmed for intelligent control, and remote liquid level metering, tank emptying, and transportation operations can be realized, and the tank liquid level metering can be accurately measured, and the operation can be timely and stable, and the metering area can be unattended; it can effectively solve the risks brought by traditional metering, tank emptying, and transportation. The present invention has developed a crude oil transmission control device based on intelligent liquid level collection through the research of high-pressure, high-yield and sulfur-containing well metering area automation control process, and carried out field application tests, achieving good test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Attached Figure 1 It is a schematic diagram of the principle of a crude oil transmission control device based on intelligent liquid level collection according to an embodiment of the present invention.

[0015] The codes in the attached drawings are: 1 for separator, 2 for integrated control cabinet, 3 for inlet pipe assembly, 4 for outlet pipe assembly, 5 for mobile skid, 6 for electric ball valve, 7 for oil pumping platform, 8 for transfer tanker, and 9 for liquid level meter. DETAILED DESCRIPTION

[0016] The present invention is not limited by the following embodiments, and specific implementation methods can be determined based on the technical solution of the present invention and actual conditions.

[0017] In the present invention, for the convenience of description, the description of the relative position relationship of each component is described according to the layout of the drawings in the specification, such as: the position relationship of front, back, up, down, left, right, etc. is determined according to the layout direction of the drawings in the specification.

[0018] The present invention will be further described below in conjunction with embodiments and drawings: Embodiment 1: As attached Figure 1 As shown, the crude oil transmission control device based on intelligent liquid level collection includes an integrated control cabinet 2, an inlet pipeline component 3, an outlet pipeline component 4 and a liquid level meter 9; Among them, a control system is provided inside the integrated control cabinet 2, which is used to realize remote liquid level measurement, tank emptying and transfer operations through control; Among them, one end of the inlet pipe assembly 3 is connected to the inlet of the storage tank through the electric ball valve 6, and the other end is connected to the separator 1; One end of the outlet pipe assembly 4 is connected to the outlet of the storage tank through an electric ball valve 6, and the other end is connected to the oil pumping station 7; The liquid level meter 9 is electrically connected to the control system and is used to collect the liquid level height of the tank area in real time.

[0019] In the embodiment of the present invention, a movable skid 5 is further included, and the integrated control cabinet 2 and the electric ball valve 6 are installed on the movable skid 5 to facilitate the installation, movement and disassembly of the components.

[0020] In the embodiment of the present invention, the liquid level meter 9 is a high-frequency radar liquid level meter 9, which is multi-band and generally has 2 to 3 high-frequency beams. It can penetrate foam, oil interface, and water interface to obtain accurate actual liquid levels of various liquids in the measuring tank.

[0021] The embodiment of the present invention is designed as an integrated skid-mounted device including switch control of the electric ball valve 6 at the inlet and outlet, a liquid pump, an integrated control cabinet 2, etc., which receives analog or digital signals from sensors at various parts and accesses the control system using a wireless bridge transmission method, automatically collects liquid discharge metering data from the tank area, and performs automatic or manual valve switching and liquid transfer pump operation based on the digital data collected from each sensor.

[0022] When in use, the liquid level meter 9 collects the liquid level height of the tank area in real time, and the control system automatically calculates the current return fluid volume and the remaining tank capacity; it determines whether the tank is full based on the real-time collected tank area liquid level height, and uses the electric ball valve 6 to control the opening and closing of each tank inlet and outlet, so that the return fluid is full before being poured into the next metering tank; when automatically pouring the tank, remote manual intervention and adjustment can be made according to the on-site well conditions if necessary. Specifically, after receiving the remote data of the liquid level meter 9, the data acquisition and control system performs program control, determines whether the tank is full based on the real-time collected tank area liquid level height, and issues automatic tank pouring instructions for full liquid level storage tanks and empty liquid level storage tanks. The instructions reach the ball valve electric actuator to enable the electric ball valve 6 to control the opening and closing of each tank inlet and outlet, so that the return fluid is full before being poured into the next metering tank. For tanks that exceed the upper limit of the storage volume, the device links the oil pump and the outlet electric ball valve 6 to realize the transfer of the tank return fluid to the transfer tank truck 8. Specifically, for tanks that exceed the upper limit of storage volume, the data acquisition and control system sends a command to the electric actuator that opens the electric ball valve 6 at the liquid outlet of the storage tank. After opening the electric ball valve 6 at the liquid outlet, it then sends a command to connect the power supply of the oil pump to link the device to the oil pump and the outlet electric ball valve 6, so as to realize the transfer of the tank body return fluid to the transfer tank truck 8.

[0023] The crude oil transmission control device based on intelligent liquid level acquisition in the embodiment of the present invention, i.e., the ILCOTSD system device, collects the tank area liquid level in real time by accessing the high-frequency radar liquid level meter 9, converts the obtained liquid level data from analog quantity to digital quantity, and then accesses the control system by means of the on-site industrial wireless LAN. The data is transmitted to the control system for real-time display, so that the metering tank measurement, tank emptying and other operations can be remotely controlled by the central control screen or pre-programmed for intelligent control, and the remote liquid level meter 9 measurement, tank emptying and transportation operations can be realized. In this way, the tank liquid level meter 9 can measure accurately, the operation can be timely and stable, and the metering area can be unattended; it can effectively solve the risks brought by traditional metering, tank emptying and transportation. The embodiment of the present invention has developed a crude oil transmission control device based on intelligent liquid level acquisition through the research of high-pressure, high-yield and sulfur-containing well metering area automation control process, and carried out field application tests, which achieved good test results.

[0024] Embodiment 2: As attached Figure 1As shown, the control system of the crude oil transmission control device based on intelligent liquid level acquisition can be a ground test integrated system, and the ground test integrated system is connected to the liquid level meter 9 through an industrial wireless LAN. In an embodiment of the present invention, the ground test integrated system is a control system already available on site. When in use, the liquid level meter 9 collects the liquid level in the tank area in real time, accesses the ground test integrated system by means of the on-site industrial wireless LAN, and transmits the data to the ground test integrated system for real-time display. The metering tank is emptied using the central control screen remote control or pre-programmed intelligent control, realizing remote liquid level meter 9 measurement, tank emptying, and transfer operations. The liquid level meter 9 measures accurately, and the crude oil transmission control device based on intelligent liquid level acquisition operates stably, realizing unmanned metering area.

[0025] Embodiment 3: As attached Figure 1 As shown, a manual-automatic switching button is also provided on the integrated control cabinet 2 of the crude oil transmission control device based on intelligent liquid level acquisition. The manual-automatic switching button is electrically connected to the control system and is used to switch between the manual mode and the automatic mode of canning. The manual mode and the automatic mode of canning are set in the control system. In the manual mode, the user can individually operate the opening and closing of the inlet and outlet valves of each metering tank in the software in some special working modes; in the automatic mode, the user can set the upper limit liquid level of the metering tank and compile a prefabricated program, and the program automatically controls the ball valve to switch according to the liquid level in the tank.

[0026] Embodiment 4: The embodiment of the present invention discloses a crude oil transmission control method based on intelligent liquid level collection, comprising the following steps: Provided is a crude oil transmission control device based on intelligent liquid level collection, the crude oil transmission control device based on intelligent liquid level collection is the above-mentioned crude oil transmission control device based on intelligent liquid level collection; Automatic measurement, the level meter 9 collects the liquid level height of the tank area in real time, and the control system automatically calculates the current return liquid volume and remaining tank capacity; Automatic tank emptying: judge whether the tank is full according to the real-time collected tank area liquid level height, and use the electric ball valve 6 to control the opening and closing of each tank inlet and outlet, so that the return fluid is filled before being poured into the next metering tank; when automatic tank emptying is performed, remote manual intervention adjustment can be performed according to the on-site well conditions if necessary. Specifically, after receiving the remote data of the liquid level meter 9, the data acquisition and control system performs program control, judges whether the tank is full according to the real-time collected tank area liquid level height, and issues automatic tank emptying instructions for full liquid level storage tanks and empty liquid level storage tanks. The instructions reach the ball valve electric actuator to make the electric ball valve 6 control the opening and closing of each tank inlet and outlet, so that the return fluid is filled before being poured into the next metering tank.

[0027] Automatic transfer, for tanks that exceed the upper limit of storage volume, the device links the oil pump and the outlet electric ball valve 6 to realize the transfer of the tank body return fluid to the transfer tanker 8. Specifically, for tanks that exceed the upper limit of storage volume, the data acquisition control system sends a command to the electric actuator that opens the electric ball valve 6 at the liquid outlet of the storage tank to open the electric ball valve 6 at the liquid outlet, and then sends a command to connect the oil pump power supply to make the device link the oil pump and the outlet electric ball valve 6 to realize the transfer of the tank body return fluid to the transfer tanker 8.

[0028] In the embodiment of the present invention, a manual mode and an automatic mode are also provided. In the manual mode, the user can individually operate the opening and closing of the inlet and outlet valves of each metering tank; in the automatic mode, the user can set the upper limit liquid level of the metering tank, compile a prefabricated program, and automatically control the switching of the electric ball valve 6 according to the liquid level in the tank.

[0029] The embodiment of the present invention collects the liquid level in the tank area in real time by accessing a high-frequency radar level meter 9, converts the obtained liquid level data from analog to digital, and then accesses the control system by means of an on-site industrial wireless LAN. The data is transmitted to the control system for real-time display, so that operations such as metering and emptying the tank can be remotely controlled using a central control screen or intelligently controlled by pre-programming, thereby realizing remote liquid level meter 9 measurement, emptying, and transfer operations, achieving accurate measurement of the tank level meter 9, timely and stable operation, and realizing unmanned metering area; the risks brought by traditional metering, emptying, and transfer can be effectively solved.

[0030] The above technical features constitute the embodiments of the present invention, which have strong adaptability and implementation effect. Non-essential technical features can be added or reduced according to actual needs to meet the requirements of different situations.

Claims

1. A crude oil transmission control device based on intelligent liquid level acquisition, characterized in that Includes integrated control cabinet, inlet pipe assembly, outlet pipe assembly and liquid level gauge; Among them, a control system is set inside the integrated control cabinet, which is used to realize remote liquid level measurement, tank emptying and transfer operations through control; One end of the inlet pipe assembly is connected to the inlet of the storage tank through an electric ball valve, and the other end is connected to the separator; Among them, one end of the outlet pipe assembly is connected to the outlet of the storage tank through an electric ball valve, and the other end is connected to the oil pumping platform; Among them, the liquid level meter is electrically connected to the control system and is used to collect the liquid level height of the tank area in real time.

2. The crude oil transmission control device based on intelligent liquid level acquisition according to claim 1 is characterized in that It also includes a mobile skid, on which an integrated control cabinet and an electric ball valve are installed, so as to facilitate installation, movement and disassembly of components.

3. The crude oil transmission control device based on intelligent liquid level acquisition according to claim 1 or 2, characterized in that The liquid level meter is a high frequency radar level meter.

4. The crude oil transmission control device based on intelligent liquid level acquisition according to claim 1 or 2, characterized in that The control system is a ground test integrated system, and the ground test integrated system is connected to the liquid level meter through an industrial wireless LAN.

5. The crude oil transmission control device based on intelligent liquid level acquisition according to claim 3 is characterized in that The control system is a ground test integrated system, and the ground test integrated system is connected to the liquid level meter through an industrial wireless LAN.

6. The crude oil transmission control device based on intelligent liquid level acquisition according to claim 1, 2 or 5, characterized in that A manual-automatic switching button is also provided on the integrated control cabinet. The manual-automatic switching button is electrically connected to the control system and is used for switching between manual mode and automatic mode.

7. The crude oil transmission control device based on intelligent liquid level acquisition according to claim 3 is characterized in that A manual-automatic switching button is also provided on the integrated control cabinet. The manual-automatic switching button is electrically connected to the control system and is used for switching between manual mode and automatic mode.

8. A crude oil transmission control method based on intelligent liquid level acquisition, characterized in that The following steps are involved: Provided is a crude oil transmission control device based on intelligent liquid level collection, wherein the crude oil transmission control device based on intelligent liquid level collection is a crude oil transmission control device based on intelligent liquid level collection according to any one of claims 1 to 7; Automatic measurement, the level meter collects the tank area liquid level in real time, and the control system automatically calculates the current return liquid volume and remaining tank capacity; Automatic tank emptying: judge whether the tank is full according to the real-time collected tank area liquid level height, and use electric ball valve to control the opening and closing of each tank inlet and outlet, so that the return fluid will be poured into the next metering tank after the tank is full; Automatic transfer: For tanks that exceed the upper limit of storage volume, the device links the oil pump and the outlet electric ball valve to realize the transfer of the tank return fluid to the transport tank truck.

9. The crude oil transmission control method based on intelligent liquid level acquisition according to claim 8 is characterized in that When automatically emptying the tank, remote manual intervention and adjustment are performed according to the on-site well conditions.

10. The crude oil transmission control method based on intelligent liquid level acquisition according to claim 8 or 9, characterized in that There are also manual mode and automatic mode. In manual mode, the user operates the opening and closing of the inlet and outlet valves of each metering tank individually; in automatic mode, the user sets the upper limit liquid level of the metering tank, prepares a prefabricated program, and automatically controls the electric ball valve to switch according to the liquid level in the tank.

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