Crude oil single well flowmeter equipment

Abstract

The utility model relates to crude oil single well flowmeter equipment. The crude oil single well flowmeter equipment comprises a protection cabinet, an oil inlet pipeline, a gas-liquid separator, a gas pipeline and a liquid pipeline. The oil inlet pipeline is communicated with an oil inlet of the gas-liquid separator; a gas outlet and a liquid outlet are formed in the two ends of the gas-liquid separator, the liquid outlet of the gas-liquid separator is communicated with the liquid pipeline, and the gas outlet of the gas-liquid separator is communicated with the gas pipeline; the liquid pipeline is provided with a liquid phase measuring part; the gas-liquid separator and the liquid phase measuring part are arranged in the cavity of the protection cabinet; the liquid flow meter and the temperature sensor are sequentially arranged in the flowing direction of liquid in the liquid pipeline. The gas pipeline is provided with a first valve and a second valve; the first valve and the second valve are both located in the protection cabinet, and the first valve and the second valve are sequentially arranged in the flowing direction of gas in the gas pipeline; the oil inlet pipeline is provided with an oil filter; and more than two moving parts are arranged at the bottom of the protection cabinet.

Description

Technical Field

[0001] The present application relates to the technical field of crude oil metering devices, and in particular to a crude oil single well flow meter device. Background Art

[0002] Generally, the unprocessed oil directly extracted from the oil field is called crude oil. Accurate and timely detection of oil well output during the extraction process can reflect the working status of the oil well, which has great practical significance for formulating reasonable extraction technology and water injection plan. Traditional metering devices for measuring crude oil flow often only have a single liquid flow meter on the crude oil pipeline, and the metering data is obtained by converting volume and density. For example, a crude oil water flow meter disclosed in publication number CN112254780A can be referred to; in reality, the extracted crude oil is a mixture of oil, gas and other impurities, and the gas contained will reduce the measurement accuracy of the liquid flow meter. Summary of the invention

[0003] In view of this, the present application proposes a crude oil single well flow meter device.

[0004] According to one aspect of the present application, a crude oil single well flow meter device is provided, characterized in that it comprises: a protection cabinet, an oil inlet pipeline, a gas-liquid separator, a gas pipeline and a liquid pipeline;

[0005] The oil inlet pipeline is connected with the oil inlet of the gas-liquid separator, and the crude oil is suitable for entering the gas-liquid separator through the oil inlet pipeline; the two ends of the gas-liquid separator are provided with a gas outlet and a liquid outlet, the liquid outlet of the gas-liquid separator is connected with the liquid pipeline, and the gas outlet of the gas-liquid separator is connected with the gas pipeline;

[0006] The liquid pipeline is provided with a liquid phase measuring part; the gas-liquid separator and the liquid phase measuring part are both arranged inside the cavity of the protective cabinet;

[0007] The liquid phase measurement unit includes: a liquid flow meter and a temperature sensor; the liquid flow meter is arranged on the liquid pipeline, and the detection ends of the temperature sensors are located in the liquid pipeline and are suitable for detecting the instantaneous flow rate and temperature of the liquid respectively; the liquid flow meter and the temperature sensor are arranged in sequence along the flow direction of the liquid in the liquid pipeline;

[0008] The gas pipeline is provided with a first valve and a second valve; the first valve and the second valve are both located in the protective cabinet, and the first valve and the second valve are arranged in sequence along the flow direction of the gas in the gas pipeline;

[0009] The oil inlet pipeline is equipped with an oil filter;

[0010] The bottom of the protective cabinet is provided with more than two moving parts.

[0011] In a possible implementation, the liquid phase measurement unit further includes: an oil-water analyzer;

[0012] The oil-water analyzer is arranged between the liquid flow meter and the temperature sensor.

[0013] In a possible implementation, the gas pipeline is provided with a gas phase measurement unit;

[0014] The gas phase measurement part is arranged inside the cavity of the protective cabinet.

[0015] In a possible implementation, the gas phase measurement unit includes: a gas flow meter and a pressure sensor;

[0016] The gas flow meter is arranged on the gas pipeline, the detection end of the pressure sensor is located in the gas pipeline, and is suitable for detecting the instantaneous flow and pressure of the gas respectively.

[0017] In a possible implementation, the gas flow meter, the pressure sensor, the first valve, and the second valve are arranged in sequence along the flow direction of the gas in the gas pipeline.

[0018] In a possible implementation, the first valve is a ball valve.

[0019] In a possible implementation manner, the second valve is a check valve.

[0020] In a possible implementation manner, the moving part is a universal wheel.

[0021] In a possible implementation manner, four moving parts are provided.

[0022] Beneficial effects: The present application divides crude oil into two states, gas phase and liquid phase, and respectively performs flow detection and pressure detection on the gas phase, and flow detection and temperature detection on the liquid phase. Compared with the method of directly measuring the flow of the extracted crude oil, the detection result is more accurate, which solves the problem that the wellhead of the oil field pumping well cannot accurately measure the oil production in real time. At the same time, the oil filter on the oil inlet pipeline can pre-filter the extracted crude oil, remove impurities in the crude oil and then enter the gas-liquid separator, which not only protects the gas-liquid separator to prevent impurities with higher hardness from damaging the internal structure of the gas-liquid separator, but also prevents impurities from entering the liquid pipeline to affect the measurement of liquid flow by the liquid flowmeter.

[0023] Other features and aspects of the present application will become apparent from the following detailed description of exemplary embodiments with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate exemplary embodiments, features, and aspects of the present application and, together with the description, serve to explain the principles of the present application.

[0025] Figure 1 A simplified structural diagram of a crude oil single well flow meter device according to an embodiment of the present application is shown;

[0026] Figure 2 A main structural diagram of a crude oil single well flow meter device according to an embodiment of the present application is shown;

[0027] Figure 3 A front view of a protective cabinet for a crude oil single well flow meter device according to an embodiment of the present application is shown. DETAILED DESCRIPTION

[0028] Various exemplary embodiments, features and aspects of the present application will be described in detail below with reference to the accompanying drawings. The same reference numerals in the accompanying drawings represent elements with the same or similar functions. Although various aspects of the embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless otherwise specified.

[0029] Among them, it needs to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the utility model or simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0031] The word “exemplary” is used exclusively herein to mean “serving as an example, example, or illustration.” Any embodiment described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments.

[0032] In addition, in order to better illustrate the present application, numerous specific details are given in the following specific embodiments. It should be understood by those skilled in the art that the present application can also be implemented without certain specific details. In some examples, methods, means, components and circuits well known to those skilled in the art are not described in detail in order to highlight the subject matter of the present application.

[0033] Figure 1A simplified structural diagram of a crude oil single well flow meter device according to an embodiment of the present application is shown; Figure 2 A main structural diagram of a crude oil single well flow meter device according to an embodiment of the present application is shown; Figure 3 The front view of the protective cabinet of the crude oil single well flow meter device according to the embodiment of the present application is shown. Figure 1 As shown, the crude oil single well flow meter equipment comprises: a protective cabinet 100, an oil inlet pipeline 200, a gas-liquid separator 400, a gas pipeline 600 and a liquid pipeline 500; the oil inlet pipeline 200 is connected with the oil inlet of the gas-liquid separator 400, and the crude oil is suitable for entering the gas-liquid separator 400 through the oil inlet pipeline 200; both ends of the gas-liquid separator 400 are provided with a gas outlet and a liquid outlet, the liquid outlet of the gas-liquid separator 400 is connected with the liquid pipeline 500, and the gas outlet of the gas-liquid separator 400 is connected with the gas pipeline 600; the liquid pipeline 500 is provided with a liquid phase measuring part; the gas-liquid separator 400 and the liquid phase measuring part are both arranged inside the cavity of the protective cabinet 100; the liquid phase measuring part comprises: a liquid A liquid flow meter 510 and a temperature sensor 530; the liquid flow meter 510 is arranged on the liquid pipeline 500, and the detection ends of the temperature sensor 530 are both located in the liquid pipeline 500, and are suitable for respectively detecting the instantaneous flow rate and temperature of the liquid; the liquid flow meter 510 and the temperature sensor 530 are arranged in sequence along the flow direction of the liquid in the liquid pipeline 500; the gas pipeline 600 is provided with a first valve 630 and a second valve 640; the first valve 630 and the second valve 640 are both located in the protective cabinet 100, and the first valve 630 and the second valve 640 are arranged in sequence along the flow direction of the gas in the gas pipeline 600; more than two moving parts are provided at the bottom of the protective cabinet 100.

[0034] Here, it should be noted that the crude oil is pre-processed by the gas-liquid separator 400 and then the flow rate of the crude oil is measured. Furthermore, after the crude oil enters the gas-liquid separator 400 through the oil inlet pipeline 200, the gas-liquid separator 400 separates the gas and liquid of the crude oil and layers them, and the gas in the upper layer enters the gas pipeline 600 through the gas outlet, and the liquid in the lower layer enters the liquid pipeline 500 through the liquid outlet; the liquid flow meter 510 and the temperature sensor 530 on the liquid pipeline 500 are suitable for measuring the instantaneous flow rate and temperature of the liquid in the liquid pipeline 500 respectively; the present application divides the crude oil into two states, gas phase and liquid phase; and performs flow detection and pressure detection on the gas phase state, and flow detection and temperature detection on the liquid phase state respectively. Compared with the method of directly measuring the flow rate of the produced crude oil, the detection result is more accurate, which solves the problem that the wellhead of the oil field pumping well cannot accurately and real-time measure the oil production. At the same time, the oil filter 300 on the oil inlet pipeline 200 can pre-filter the extracted crude oil, remove the impurities in the crude oil and then enter the gas-liquid separator 400, which not only protects the gas-liquid separator 400 to prevent impurities with higher hardness from damaging the internal structure of the gas-liquid separator 400, but also prevents impurities from entering the liquid pipeline 500 and affecting the measurement of liquid flow by the liquid flow meter 510. Furthermore, the protective cabinet 100 set in the present application isolates and protects the liquid phase measurement part on the gas-liquid separator 400 and the liquid pipeline 500, thereby improving the working stability of the present application; the moving part at the bottom of the protective cabinet 100 can realize the arbitrary movement of the protective cabinet 100, and the protective cabinet 100 drives the internal equipment to move, so that the placement position can be changed at any time according to the work site, which is convenient for the connection of the oil inlet pipeline 200, the liquid pipeline 500 and the gas pipeline 600 with other equipment.

[0035] Furthermore, the liquid inlet and outlet of the liquid flow meter 510 are connected to the liquid pipeline 500 via flange joints.

[0036] In a possible implementation, the liquid phase measurement unit further includes: an oil-water analyzer 520; the detection end of the oil-water analyzer 520 is located inside the liquid pipeline 500, and the oil-water analyzer 520 is arranged between the liquid flow meter 510 and the temperature sensor 530. It should be noted that the water content of crude oil is an important parameter in the oil extraction and petrochemical industries, and is of great significance to the extraction, dehydration, storage, transportation and sales of crude oil and the refining and processing of crude oil. The oil-water analyzer 520 can measure the water content of the crude oil flowing through the liquid pipeline 500.

[0037] In a possible implementation, the gas pipeline 600 is provided with a gas phase measurement unit, which is disposed inside the cavity of the protective cabinet 100. It should be noted that the present application divides crude oil into two states, gas phase and liquid phase, and data detection of the gas phase of crude oil can be performed separately through the gas phase measurement unit.

[0038] In a possible implementation, the gas phase measurement unit includes: a gas flow meter 610 and a pressure sensor 620; the gas flow meter 610 is arranged on the gas pipeline 600, and the detection end of the pressure sensor 620 is located in the gas pipeline 600 and is suitable for detecting the instantaneous flow and pressure of the gas respectively. Further, the gas flow meter 610, the pressure sensor 620, the first valve 630 and the second valve 640 are arranged in sequence along the flow direction of the gas in the gas pipeline 600.

[0039] Furthermore, the gas inlet and outlet ends of the gas flow meter 610 are connected to the gas pipeline 600 via flange joints.

[0040] In a possible implementation, it also includes: a flow totalizer 700; the data output end of the gas flow meter 610 is electrically connected to the flow totalizer 700; the data output end of the pressure sensor 620 is electrically connected to the flow totalizer 700, the data output end of the oil-water analyzer 520 is electrically connected to the flow totalizer 700, the data output end of the liquid flow meter 510 is electrically connected to the flow totalizer 700, and the data output end of the temperature sensor 530 is electrically connected to the flow totalizer 700. It should be noted that the flow totalizer 700 is used in conjunction with the gas flow meter 610, the liquid flow meter 510, the temperature sensor 530, and the pressure sensor 620 to measure, display, accumulate, control alarms, transmit and output, collect data, and communicate parameters of the gas and liquid phases.

[0041] In a possible implementation, the first valve 630 is a ball valve. Both ends of the first valve 630 are connected to the gas pipeline 600 through flange joints. Here, it should be noted that the first valve 630 is suitable for regulating the gas flow in the gas pipeline 600.

[0042] In a possible implementation, the second valve 640 is a check valve. Both ends of the second valve 640 are connected to the gas pipeline 600 through flange joints. Here, it should be noted that since the liquid in the liquid pipeline 500 finally needs to enter the heating device for temperature treatment, a check valve is provided to block the liquid in order to prevent the heated liquid from flowing back into the gas pipeline 600.

[0043] In one possible implementation, Figure 2 As shown, the oil inlet end and the oil outlet end of the oil filter 300 are connected to the oil inlet pipeline 200 through flange joints.

[0044] In a possible implementation, the main body of the protective cabinet 100 is a rectangular parallelepiped structure with one side open, and the interior is a cavity suitable for placing equipment such as the oil filter 300 and the gas-liquid separator 400. Figure 2As shown, the cabinet body of the protective cabinet 100 is a double-wall structure inside and outside to improve the isolation effect. Furthermore, an oil pipe through hole is provided on one side of the protective cabinet 100, and the oil inlet pipeline 200 passes through the oil pipe through hole of the protective cabinet 100 to penetrate the inside and outside of the protective cabinet 100. An air pipe through hole and a liquid pipe through hole are provided on the opposite side of the protective cabinet 100, and the gas pipeline 600 passes through the air pipe through hole of the protective cabinet 100 to penetrate the inside and outside of the protective cabinet 100; the liquid pipeline 500 passes through the liquid pipe through hole of the protective cabinet 100 to penetrate the inside and outside of the protective cabinet 100; thereby realizing the connection between the oil inlet pipeline 200, the liquid pipeline 500, and the gas pipeline 600 and external equipment.

[0045] In a possible implementation, the moving part is a universal wheel 110. Further, there are four moving parts, which are respectively fixed at the four corners of the bottom of the protective cabinet 100. Figure 2 As shown, the universal wheel 110 is provided with a mounting plate, and the mounting plate of the universal wheel 110 is fixedly connected to the bottom of the protective cabinet 100. The arrangement of the movable part can effectively improve the mobility of the protective cabinet 100, and is convenient for changing the application site at any time.

[0046] In a possible implementation, the protective cabinet 100 is provided with a protective door 120, such as Figure 3 As shown, the main body of the protective door 120 is a rectangular plate-like structure, and one side of the protective door 120 is hinged to the opening side of the protective cabinet 100 through a hinge. The setting of the protective door 120 not only isolates and protects the internal equipment, but also facilitates opening the internal equipment at any time for maintenance and repair. Furthermore, the outer wall of the protective door 120 is provided with a handle 121.

[0047] In a possible implementation, the protective cabinet 100 is provided with a filter bracket 310. Here, it should be noted that, in order to ensure the installation stability of the oil filter 300, the filter bracket 310 is provided inside the protective cabinet 100 and at the bottom of the oil filter 300 to ensure the stable fixation of the oil filter 300 and avoid the oil filter 300 being unstable due to height reasons. Here, it should be noted that the height of the filter bracket 310 can be determined according to different models of oil filters 300. Further, the main body of the filter bracket is a rectangular frame structure, and a support plate is provided on the top of the filter bracket, and the oil filter 300 is placed on the support plate.

[0048] It should be noted that the oil filter 300 and the gas-liquid separator 400 of the present application are both existing equipment.

[0049] It should be noted that the high viscosity of crude oil makes it have great resistance during the transportation and distribution process, resulting in increased friction resistance and increased circulation viscosity of crude oil in the pipeline. One solution is to use the characteristic that the viscosity of heavy oil decreases rapidly with the increase of temperature, set up a relay station on the crude oil distribution pipeline, use a heating furnace to heat the mixed water or directly use electric heating to heat the crude oil at the pumping wellhead, so that the heavy oil maintains a relatively high temperature during the transportation and distribution process, reduces the transportation and distribution resistance, and reduces the transportation and distribution energy consumption. The present application can be adapted to the heating equipment to heat the crude oil, and can effectively improve the heat exchange efficiency. Furthermore, the liquid in the liquid pipeline 230 flows out of the protective cabinet 100 and enters the heating device 100 for heating, while the gas in the gas pipeline 600 does not need to pass through the heating device 100, and merges with the heated liquid before entering the next step. Such a design can reduce the heat exchange area of ​​the heat pump heat exchanger while successfully heating the crude oil, so as to achieve the purpose of improving the heating efficiency and reducing the cost of the heating equipment; as well as reducing energy consumption and reducing operating costs.

[0050] The embodiments of the present application have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A crude oil single well flow meter device, characterized in that: include: Protective cabinets, oil inlet pipelines, gas-liquid separators, gas pipelines and liquid pipelines; The oil inlet pipeline is in communication with the oil inlet of the gas-liquid separator, and crude oil is suitable for entering the gas-liquid separator through the oil inlet pipeline; gas outlets and liquid outlets are provided at both ends of the gas-liquid separator, the liquid outlet of the gas-liquid separator is in communication with the liquid pipeline, and the gas outlet of the gas-liquid separator is in communication with the gas pipeline; The liquid pipeline is provided with a liquid phase measuring part; the gas-liquid separator and the liquid phase measuring part are both arranged inside the cavity of the protective cabinet; The liquid phase measurement unit comprises: a liquid flow meter and a temperature sensor; the liquid flow meter is arranged on the liquid pipeline, and the detection ends of the temperature sensors are both located in the liquid pipeline and are suitable for detecting the instantaneous flow rate and temperature of the liquid respectively; the liquid flow meter and the temperature sensor are arranged in sequence along the flow direction of the liquid in the liquid pipeline; The gas pipeline is provided with a first valve and a second valve; the first valve and the second valve are both located in the protection cabinet, and the first valve and the second valve are arranged in sequence along the flow direction of the gas in the gas pipeline; The first valve is a ball valve; the second valve is a check valve; The oil inlet pipeline is provided with an oil filter; The bottom of the protective cabinet is provided with more than two moving parts; the moving parts are universal wheels, and four of the moving parts are provided; The main body of the protective cabinet is a rectangular parallelepiped structure with one side open, and the protective cabinet is provided with a protective door, the main body of the protective door is a rectangular plate structure, and one side of the protective door is hinged to one side of the opening of the protective cabinet; A filter bracket is arranged in the protection cabinet, a support plate is arranged on the top of the filter bracket, and the oil filter is placed on the support plate.

2. The crude oil single well flow meter device according to claim 1, characterized in that: The liquid phase measurement unit also includes: an oil-water analyzer; The oil-water analyzer is arranged between the liquid flow meter and the temperature sensor.

3. The crude oil single well flow meter device according to claim 1, characterized in that: The gas pipeline is provided with a gas phase measurement part; The gas phase measurement unit is arranged inside the cavity of the protection cabinet.

4. The crude oil single well flow meter device according to claim 3, characterized in that: The gas phase measurement unit includes: a gas flow meter and a pressure sensor; The gas flow meter is arranged on the gas pipeline, and the detection end of the pressure sensor is located in the gas pipeline and is suitable for detecting the instantaneous flow and pressure of the gas respectively.

5. The crude oil single well flow meter device according to claim 4, characterized in that: The gas flow meter, the pressure sensor, the first valve and the second valve are arranged in sequence along the flow direction of the gas in the gas pipeline.

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