Crude oil metering device for oil testing single well

Abstract

The utility model provides an oil testing single well crude oil metering device, which relates to the technical field of crude oil metering and comprises an oil storage tank, two sections of oil delivery pipes are arranged outside the oil storage tank, and connecting components are arranged at the ends, close to each other, of the two oil delivery pipes. According to the oil testing single well crude oil metering device, the two external connecting pipes are installed in the two oil conveying pipes correspondingly, then the connecting pipe is placed between the two external connecting pipes and fixed through the bolts, then the connecting positions of the connecting pipe and the oil conveying pipes are reinforced through the positioning threaded sleeves, the connecting pipe can be detached according to use requirements, and the oil testing single well crude oil metering device is convenient to use. The connecting pipe can be cleaned conveniently, blockage in the connecting pipe is avoided, the shaking amplitude of liquid in the oil storage tank can be reduced through the inflatable cushion, the inflatable cushion drives the indicating rod to ascend, the scale rod is observed through the liquid level sensor, the height of the liquid can be accurately calculated, and statistics can be conducted conveniently through a formula used subsequently. And the accuracy of data calculation is improved.

Description

Technical Field

[0001] This utility model relates to a crude oil metering device, specifically a crude oil metering device for a single well during oil testing, and belongs to the field of crude oil metering technology. Background Technology

[0002] Exploration well testing is crucial for achieving results in oil and gas exploration. Measuring the production output from exploration well testing is essential for understanding reservoir conditions and guiding subsequent production. Crude oil metering devices are used to accurately measure crude oil flow rate, volume, mass, and other related parameters.

[0003] Chinese patent application publication number CN208777977U discloses a crude oil metering device for single-well oil testing. This invention utilizes advanced sensor detection technology suitable for crude oil characteristics. It replaces manual sampling and re-measurement by using a water cut sensor assembly to measure the water cut of crude oil online in real time, and a level gauge replaces manual measurement of the liquid level, greatly improving measurement accuracy.

[0004] Although the above-mentioned patented solution can replace manual sampling and measurement, the crude oil metering device in the above-mentioned patent only uses a level gauge to measure the height of a single position of the liquid surface. When the liquid surface sways, the height measured by the level gauge is prone to error. In addition, the pipe of the water content sensor has a small diameter due to working requirements. After long-term operation, impurities inside the liquid are prone to clogging the pipe, making it inconvenient to clean the inside of the pipe.

[0005] Therefore, a crude oil metering device for single well testing is proposed here. Utility Model Content

[0006] This utility model proposes a single-well crude oil metering device for oil testing. The connecting pipe can be disassembled according to the needs of use, which facilitates cleaning of the connecting pipe and avoids blockage inside the connecting pipe. In addition, the use of an air cushion can reduce the amplitude of liquid sloshing inside the oil storage tank and improve the accuracy of data calculation.

[0007] This utility model is achieved through the following technical solution: a single-well crude oil metering device for oil testing, including an oil storage tank, with two oil pipelines arranged outside the oil storage tank, and a connecting component arranged at one end of each of the two oil pipelines that are close to each other, the connecting component including a second threaded sleeve and a first positioning ring fixedly sleeved around the outside of the oil pipeline.

[0008] Furthermore, the connecting assembly also includes a support ring that is fixedly sleeved on the inner wall of the oil pipeline, and a first gasket is fixed on one side of the support ring.

[0009] Furthermore, a support block is fixed on the top surface of the oil storage tank, and the support block is fixedly sleeved around one of the oil delivery pipes. The other oil delivery pipe is connected to an external oil delivery device, and a temperature sensor and a pressure sensor are fixed around the oil delivery pipe on the side away from the oil storage tank.

[0010] A connecting pipe is provided between the two oil pipelines. A water level sensor is fixed around the periphery of the connecting pipe. Limit grooves are provided at both ends of the connecting pipe. Positioning components connected to the oil pipelines are provided at both ends of the connecting pipe. The positioning components include a connecting collar that slides around the periphery of the limit groove. A first threaded sleeve is fixed around the periphery of the connecting collar. A positioning threaded sleeve is threaded around the periphery of the first threaded sleeve. A second positioning ring is fixed around the periphery of the limit groove. A second gasket is fixed on one side of the second positioning ring.

[0011] Furthermore, each of the first, second, and third positioning rings has a set of positioning holes on its surface, and the diameter of each set of positioning holes is the same.

[0012] Furthermore, the positioning component also includes a groove formed on the periphery of the connecting pipe, and a limiting block fixed to the inner sidewall of the first threaded sleeve slides inside the groove.

[0013] Furthermore, an outer connecting pipe is provided between the oil pipeline and the connecting pipe, and a third positioning ring is fixedly fitted around the outer connecting pipe.

[0014] A liquid level sensor is fixed on the top surface of the oil tank. A floating assembly is installed inside the oil tank. The floating assembly includes an inflatable cushion installed inside the oil tank. An indicator rod is fixed on the top surface of the inflatable cushion. A set of scale rods is provided on one side of the indicator rod.

[0015] This utility model provides a crude oil metering device for single-well oil testing, which has the following beneficial effects:

[0016] 1. This single-well crude oil metering device for oil testing involves installing two external pipes inside two sections of the oil pipeline and contacting the first gasket. Then, the connecting pipe is placed between the two external pipes, so that the second gasket contacts the external pipe and is fixed with bolts. Next, the positioning threaded sleeve is moved so that the first threaded sleeve is close to the second positioning ring. Then, the positioning threaded sleeve is rotated to fit around the second threaded sleeve, reinforcing the connection between the connecting pipe and the oil pipeline. The connecting pipe can be disassembled as needed, facilitating cleaning and preventing blockage inside the connecting pipe.

[0017] 2. This single-well crude oil metering device for oil testing utilizes an air cushion to reduce the amplitude of liquid sloshing inside the oil storage tank. The air cushion drives the indicator rod to move upward, and the liquid level sensor observes the scale rod, which can accurately calculate the liquid height, facilitating subsequent statistical analysis using formulas and improving the accuracy of data calculation. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a three-dimensional structural diagram of the connecting pipe in this utility model;

[0020] Figure 3 This is a three-dimensional structural diagram of the connecting component and the outer pipe in this utility model;

[0021] Figure 4 This is a cross-sectional view of the internal structure of the oil storage tank in this utility model.

[0022] Explanation of reference numerals in the attached figures

[0023] 1. Oil reservoir;

[0024] 2. Oil pipeline; 21. Support block; 22. Temperature sensor; 23. Pressure sensor;

[0025] 3. Connecting assembly; 31. Second threaded sleeve; 32. Support ring; 33. First washer; 34. First positioning ring;

[0026] 4. External connecting pipe; 41. Third positioning ring; 5. Liquid level sensor;

[0027] 6. Connecting pipe; 61. Limiting groove; 7. Moisture sensor;

[0028] 8. Positioning assembly; 81. Second positioning ring; 82. Connecting collar; 83. First threaded sleeve; 84. Positioning threaded sleeve; 85. Second washer; 86. Limiting block; 87. Slide groove;

[0029] 9. Floating component; 91. Inflatable cushion; 92. Indicator rod; 93. Scale rod;

[0030] 10. Positioning holes. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this application.

[0032] Please see Figures 1-4 The present invention proposes the following implementation scheme: a single-well crude oil metering device for oil testing, including an oil storage tank 1, two oil pipelines 2 are provided on the outside of the oil storage tank 1, and a connecting component 3 is provided at one end of each oil pipeline 2 that is close to each other. The connecting component 3 includes a second threaded sleeve 31 and a first positioning ring 34 that are fixedly sleeved on the outside of the oil pipeline 2.

[0033] Please refer to this carefully. Figure 3 The connecting component 3 also includes a support ring 32 that is fixedly sleeved on the inner wall of the oil pipeline 2, and a first gasket 33 is fixed on one side of the support ring 32.

[0034] In the above scheme, the second threaded sleeve 31 can be connected to the positioning threaded sleeve 84, which can reinforce the connection between the connecting pipe 6 and the oil pipeline 2.

[0035] Please refer to this carefully. Figure 1 and Figure 3 A support block 21 is fixed on the top surface of the oil storage tank 1, and the support block 21 is fixedly sleeved on the periphery of one of the oil pipes 2. The other oil pipe 2 is connected to an external oil delivery device, and a temperature sensor 22 and a pressure sensor 23 are fixed on the periphery of the oil pipe 2 on the side away from the oil storage tank 1.

[0036] Please refer to this carefully. Figure 2 A connecting pipe 6 is provided between the two oil pipelines 2. A water level sensor 7 is fixed around the connecting pipe 6. Limiting grooves 61 are provided at both ends of the connecting pipe 6. Positioning components 8 connected to the oil pipelines 2 are provided at both ends of the connecting pipe 6. The positioning component 8 includes a connecting sleeve 82 that is slidably sleeved around the limiting groove 61. A first threaded sleeve 83 is fixed around the connecting sleeve 82. A positioning threaded sleeve 84 is threaded around the first threaded sleeve 83. A second positioning ring 81 is fixedly sleeved around the limiting groove 61. A second gasket 85 is fixed on one side of the second positioning ring 81.

[0037] In the above scheme, the positioning threaded sleeve 84 is moved so that the first threaded sleeve 83 is close to the second positioning ring 81. Then the positioning threaded sleeve 84 is rotated so that the positioning threaded sleeve 84 is moved between the connecting pipe 6 and the oil supply pipe 2 and is sleeved on the periphery of the second threaded sleeve 31.

[0038] Please refer to this carefully. Figure 2 and Figure 3 The surfaces of the first positioning ring 34, the second positioning ring 81 and the third positioning ring 41 are each provided with a set of positioning holes 10, and the diameter of the inside of each set of positioning holes 10 is the same.

[0039] In the above scheme, bolts are used to pass through the positioning holes 10 on the surfaces of the second positioning ring 81, the third positioning ring 41 and the first positioning ring 34 in sequence, and then nuts are used to fix them.

[0040] The positioning component 8 also includes a groove 87 formed on the periphery of the connecting pipe 6, and a limiting block 86 fixed to the inner side wall of the first threaded sleeve 83 slides inside the groove 87.

[0041] Please refer to this carefully. Figure 3 An outer pipe 4 is provided between the oil pipeline 2 and the connecting pipe 6, which is sleeved inside the oil pipeline 2. A third positioning ring 41 is fixedly sleeved around the outer pipe 4.

[0042] Please refer to this carefully. Figure 1 and Figure 4 A liquid level sensor 5 is fixed on the top surface of the oil tank 1. A floating assembly 9 is installed inside the oil tank 1. The floating assembly 9 includes an air cushion 91 installed inside the oil tank 1. An indicator rod 92 is fixed on the top surface of the air cushion 91. A set of scale rods 93 is provided on one side of the indicator rod 92.

[0043] In the above scheme, the air cushion 91 can reduce the amplitude of liquid sloshing inside the oil tank 1. The air cushion 91 drives the indicator rod 92 to move upward, and the liquid level sensor 5 observes the scale rod 93 to accurately calculate the liquid height.

[0044] In use, the following steps are taken: First, the two outer pipes 4 are installed inside the two sections of the oil pipe 2 and contact the first gasket 33. Then, the connecting pipe 6 is placed between the two outer pipes 4, so that the second gasket 85 contacts the outer pipe 4. Bolts are then passed through the positioning holes 10 on the surfaces of the second positioning ring 81, the third positioning ring 41, and the first positioning ring 34 in sequence, and fixed with nuts. Then, the positioning threaded sleeve 84 is moved so that the first threaded sleeve 83 is close to the second positioning ring 81. Subsequently, the positioning threaded sleeve 84 is rotated so that it moves between the connecting pipe 6 and the oil pipe 2 and is fitted onto the second threaded sleeve 33. The outer periphery of the sleeve 31 reinforces the connection between the connecting pipe 6 and the oil supply pipe 2, allowing the connecting pipe 6 to be disassembled as needed for cleaning and preventing blockages. When the liquid to be measured enters the oil storage tank 1, the air cushion 91 floats inside, reducing the amplitude of liquid sloshing within the tank. The air cushion 91 moves the indicator rod 92 upward, and the liquid level sensor 5 observes the scale rod 93, accurately calculating the liquid level for subsequent statistical analysis using formulas, thus improving the accuracy of data calculation.

[0045] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A crude oil metering device for a single well during oil testing, comprising an oil storage tank (1), characterized in that: The oil storage tank (1) is provided with two oil delivery pipes (2) on its exterior. Each of the two oil delivery pipes (2) has a connecting assembly (3) at one end close to the other. The connecting assembly (3) includes a second threaded sleeve (31) and a first positioning ring (34) fixedly fitted around the oil delivery pipe (2). A connecting pipe (6) is provided between the two oil delivery pipes (2). A water level sensor (7) is fixed around the connecting pipe (6). Limit grooves (61) are provided at both ends of the connecting pipe (6). Both ends of the ) are provided with positioning components (8) connected to the oil pipeline (2). The positioning component (8) includes a connecting collar (82) that is slidably sleeved around the periphery of the limiting groove (61). A first threaded sleeve (83) is fixed around the periphery of the connecting collar (82). A positioning threaded sleeve (84) is threaded around the periphery of the first threaded sleeve (83). A second positioning ring (81) is fixedly sleeved around the periphery of the limiting groove (61). A second gasket (85) is fixed on one side of the second positioning ring (81). A liquid level sensor (5) is fixed on the top surface of the oil storage tank (1). A floating assembly (9) is provided inside the oil storage tank (1). The floating assembly (9) includes an air cushion (91) installed inside the oil storage tank (1). An indicator rod (92) is fixed on the top surface of the air cushion (91). A set of scale rods (93) is provided on one side of the indicator rod (92).

2. The crude oil metering device for a single well during oil testing according to claim 1, characterized in that: The connecting assembly (3) further includes a support ring (32) fixedly sleeved on the inner wall of the oil pipeline (2), and a first gasket (33) is fixed on one side of the support ring (32).

3. The crude oil metering device for a single well during oil testing according to claim 1, characterized in that: An outer pipe (4) is provided between the oil pipeline (2) and the connecting pipe (6) and is sleeved inside the oil pipeline (2). A third positioning ring (41) is fixedly sleeved around the outer pipe (4).

4. The crude oil metering device for a single well during oil testing according to claim 3, characterized in that: The first positioning ring (34), the second positioning ring (81) and the third positioning ring (41) are each provided with a set of positioning holes (10), and the diameter inside each set of positioning holes (10) is the same.

5. The crude oil metering device for a single well during oil testing according to claim 1, characterized in that: The positioning component (8) also includes a groove (87) formed on the periphery of the connecting pipe (6), and a limiting block (86) fixed to the inner sidewall of the first threaded sleeve (83) slides inside the groove (87).

6. The crude oil metering device for a single well during oil testing according to claim 1, characterized in that: The top surface of the oil storage tank (1) is fixed with a support block (21), and the support block (21) is fixedly sleeved around one of the oil pipes (2). The other oil pipe (2) is connected to an external oil delivery device, and a temperature sensor (22) and a pressure sensor (23) are fixed around the oil pipe (2) on the side away from the oil storage tank (1).

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