High gas-oil ratio reservoir sampling cup

Abstract

The utility model belongs to the field of oil sampling technology discloses a kind of high gas-oil ratio reservoir sampling cup, including the cup body for gas-liquid separation, cup cover detachably arranged at the top of cup body and collector detachably arranged at the bottom of cup body for collecting oil liquid;Liquid inlet pipe and exhaust pipe are fixed on cup cover, and plug is detachably arranged on liquid inlet pipe and exhaust pipe;Liquid distribution baffle for separating oil gas and oil liquid is fixed in cup body, and liquid distribution baffle is below liquid inlet pipe;Flow baffle is fixedly arranged in cup body with inclination, and a plurality of liquid discharge holes are arranged on flow baffle, and flow baffle is between liquid distribution baffle and collector.The utility model can separate gas-liquid in crude oil during sampling process, improve the space utilization of sampling, and is suitable for high gas-oil ratio crude oil sampling.

Description

Technical Field

[0001] This utility model belongs to the field of petroleum sampling technology, and relates to a sampling cup, specifically a high gas-oil ratio reservoir sampling cup. Background Technology

[0002] The main purpose of crude oil sampling and testing is to assess the physical and chemical properties of crude oil, ensuring that its quality and safety meet industry standards and regulations. By measuring indicators such as density, viscosity, and sulfur content, crude oil processing procedures can be optimized. Currently, mineral water bottles are often used as temporary sampling devices. However, crude oil has a high gas content, and the bottles are filled with a large amount of gas, resulting in low liquid space occupancy. A single sampling cannot meet the laboratory testing needs, requiring multiple samplings, which reduces work efficiency. Furthermore, idle mineral water bottles may be contaminated with dust or impurities, or contain residual oil from previous sampling, reducing the reliability of subsequent test results. Utility Model Content

[0003] To address the aforementioned shortcomings in the existing technology, this utility model aims to provide a high gas-oil ratio reservoir sampling cup to achieve gas-liquid separation during the sampling process and improve the utilization rate of liquid space.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A high gas-oil ratio reservoir sampling cup includes a cup body for gas-liquid separation, a cup lid detachably disposed on the top of the cup body, and a collector detachably disposed on the bottom of the cup body for collecting oil. The cup lid is fixedly provided with an inlet pipe and an exhaust pipe, and both the inlet pipe and the exhaust pipe are detachably provided with plugs; The cup body is fixedly provided with a liquid separating baffle for separating oil gas and oil liquid, and the liquid separating baffle is located below the liquid inlet pipe; the cup body is fixedly provided with an inclined flow baffle, and the flow baffle is provided with several drainage holes, and the flow baffle is located between the liquid separating baffle and the collector.

[0005] As a limitation of this utility model, a liquid-catching net is fixed between the cup body and the cup lid, the liquid inlet pipe extends into the cup body through the liquid-catching net, and the air inlet end of the exhaust pipe is located between the liquid-catching net and the cup lid.

[0006] As another limitation of this utility model, the tilt angle of the flow-blocking plate is 45° to 60°.

[0007] As a limitation of this utility model, the tilt angle of the flow-blocking plate is 45°.

[0008] As a third limitation of this utility model, a drain pipe is fixedly provided below the collector, and a drain valve is fixedly provided on the drain pipe.

[0009] As a limitation of this utility model, the vertical distance between the liquid inlet pipe and the liquid distribution baffle along the length of the cup body is 1 cm to 2 cm.

[0010] As a further limitation of this utility model, the vertical distance between the liquid inlet pipe and the liquid distribution baffle is 1cm.

[0011] As a fourth limitation of this utility model, the exhaust pipe is L-shaped.

[0012] As a limitation of this utility model, the cup body, cup lid, collector, inlet pipe, exhaust pipe, liquid distribution baffle, flow barrier, drain pipe and drain pipe valve are all made of metal.

[0013] As a fifth limitation of this utility model, a sealing gasket is provided between the cup lid and the cup body, and between the cup body and the collector.

[0014] By adopting the above-mentioned technical solution, the beneficial effects achieved by this utility model compared with the prior art are as follows: (1) In this utility model, crude oil enters the cup body through the inlet pipe. The crude oil falls onto the separating baffle and is dispersed. The gas and liquid in the crude oil are separated due to gravity. The liquid is heavier and falls downward onto the flow barrier for further gas-liquid separation. The separated oil falls into the collector through the drain hole. The gas is lighter and gathers above the cup body and is discharged through the exhaust pipe. During the sampling process, the gas in the crude oil is separated and discharged from the cup body, without occupying the space inside the cup body, providing more storage space for the oil and enabling sampling as much as possible. At the same time, the cup lid and collector can be disassembled for easy cleaning, ensuring the cleanliness of the next use. The collector can also be disassembled and directly connected to the container in the laboratory, saving the trouble of sampling. (2) The gas after separation passes through the liquid trap before being discharged. The oil entrained in the gas condenses at the liquid trap and is then discharged through the exhaust pipe, which improves the purity of separation and prevents the oil from entering the air and polluting the environment. At the same time, the exhaust pipe is L-shaped, which can make the oil in the gas condense a second time, further improving the purity of separation. (3) The drain pipe on the collector of this utility model makes it easy to quantitatively distribute the oil into the laboratory container. The valve not only makes it easy to control the flow rate, but also prevents the oil from spilling. (4) The present invention sets a 1cm distance between the liquid inlet pipe and the liquid separation baffle, which can ensure the thoroughness of separation and prevent crude oil from splashing too high and mixing with the separated gas again. (5) The metal material of this utility model can avoid electrostatic discharge during transportation, thus improving safety; (6) The sealing gasket of this utility model can increase the sealing performance and prevent leakage.

[0015] In summary, this invention can separate gas and liquid in crude oil during the sampling process, improve the space utilization rate of sampling, and is suitable for sampling crude oil with a high gas-oil ratio. Attached Figure Description

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0017] Figure 1 This is a schematic diagram of the main structure of an embodiment of the present utility model; Figure 2 This is a cross-sectional structural diagram of an embodiment of the present utility model; Figure 3 This is a schematic diagram of the structure of this utility model combined with a container in the laboratory.

[0018] In the diagram: 1. Cup body; 2. Cup lid; 3. Collector; 4. Inlet pipe; 5. Exhaust pipe; 6. Plug; 7. Dividing baffle; 8. Flow baffle; 9. Drain hole; 10. Liquid trap; 11. Drain pipe; 12. Drain valve; 13. Container. Detailed Implementation

[0019] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0020] Example: High gas-oil ratio reservoir sampling cup like Figure 1 , Figure 2 As shown, this embodiment includes a cup body 1, a cup lid 2, and a collector 3, forming a cylindrical sampling cup. The cup body 1 is used to separate the gas and liquid in crude oil. The cup lid 2 is detachably located on the top of the cup body 1. The collector 3 is used to collect the oil after gas-liquid separation. The collector 3 is detachably located at the bottom of the cup body 1. Crude oil with a high oil-to-gas ratio contains a large amount of gas. After separation by the cup body 1, the liquid and gas are separated. The liquid is collected by the collector 3, and the gas is discharged from the cup body 1, without occupying the space of the cup body 1, thus improving the utilization rate of the space inside the cup body 1.

[0021] The cup lid 2 is detachably attached to the cup body 1 via threads. A sealing gasket (not shown in the figure) is fixed at the sealing point between the cup lid 2 and the cup body 1. Both the threaded connection and the sealing gasket adopt the existing structure of a water cup and cup lid. The sealing gasket ensures a tight seal. An inlet pipe 4 and an outlet pipe 5 are fixed to the cup lid 2. One end of the inlet pipe 4 remains outside the cup lid 2, and the other end extends into the cup body 1. One end of the outlet pipe 5 is fixed to the cup lid 2, and the other end is located outside the cup lid 2. The outlet pipe 5 extends upwards from the cup lid 2 (…). Figure 2 The state shown above extends to the left. Figure 2The left side of the state extends to form an L-shape. Both the inlet pipe 4 and the outlet pipe 5 are detachably equipped with plugs 6 at their ends outside the cup lid 2 to ensure a sealed environment after sampling.

[0022] A liquid-separating baffle 7 is fixedly installed on the inner wall of the cup body 1 to separate the oil vapor and oil liquid in the crude oil. The liquid-separating baffle 7 is located directly below the liquid inlet pipe 4. The vertical distance between the end of the liquid inlet pipe 4 that extends into the cup body 1 and the liquid-separating baffle 7 is 1 cm to 2 cm. This ensures that the crude oil is splashed up, but also prevents the crude oil from splashing too high and mixing with the separated gas again. In this embodiment, the vertical distance between the liquid inlet pipe 4 and the liquid-separating baffle 7 is 1 cm.

[0023] A baffle plate 8 is fixedly installed at an inclination inside the cup body 1. The inclination angle of the baffle plate 8 is 45° to 60°, and the inclination angle used in this embodiment is 45°. The edge of the baffle plate 8 is sealed to the inner wall of the cup body 1, and the baffle plate 8 is located between the liquid separator 7 and the collector 3. The baffle plate 8 is provided with several drainage holes 9. After the crude oil passes through the liquid separator 7 for gas-liquid separation, the oil falls onto the baffle plate 8 due to gravity and is separated a second time. The oil after secondary separation falls into the collector 3 through the drainage holes 9 on the baffle plate 8.

[0024] To prevent the separated gas from carrying oil and causing environmental pollution after being discharged from the cup body 1, this embodiment has a liquid-catching net 10 fixed between the cup body 1 and the cup lid 2. The liquid-catching net 10 has a clump-shaped structure and can be made into a clump-shaped structure using a plastic mesh bag. The liquid-catching net 10 is fixed to the cup lid 2. After the cup lid 2 is installed, the liquid-catching net 10 is pressed between the cup lid 2 and the top port of the cup body 1. The liquid inlet pipe 4 passes through the liquid-catching net 10 and extends into the cup body 1. The air inlet end of the exhaust pipe 5 is located between the liquid-catching net 10 and the cup lid 2. When the crude oil entering the cup body 1 through the liquid inlet pipe 4 falls onto the liquid separating baffle 7, the gas is separated and moves upward. When the gas passes through the liquid-catching net 10, a small amount of oil mixed in with the gas condenses at the liquid-catching net 10, and the gas is discharged from the exhaust pipe 5.

[0025] Collector 3 is a cylindrical container closed at one end. The open end of collector 3 is detachably connected to the bottom of cup body 1 via threads. A sealing gasket (not shown in the figure) is fixed at the sealing point between collector 3 and cup body 1. The sealing gasket is installed in the same way as the sealing gasket at cup lid 2. A drain pipe 11 is fixed to the bottom of collector 3, and a drain valve 12 is fixed to drain pipe 11. When it is necessary to transfer the oil from collector 3 to laboratory container 13, the drain valve 12 is opened for quantitative control and to prevent accidental spillage. Furthermore, collector 3 is detachable, which facilitates cleaning. Figure 3 As shown, the cup body 1 can also be combined with the laboratory container 13 to directly obtain the oil after gas-liquid separation.

[0026] In this embodiment, all structures except for the liquid trapping net 10 and the plug 6 are made of metal, which can prevent static electricity from being generated.

[0027] In this embodiment, the cleaned cup body 1, cup lid 2, and collector 3 are assembled. The plugs 6 at the ends of the inlet pipe 4 and the vent pipe 5 are removed. The inlet pipe 4 is connected to the crude oil sampling port. Crude oil enters the cup body 1 and falls onto the separating baffle 7, where it is scattered and splashed. Due to gravity, the oil falls downward onto the baffle plate 8 for further gas separation. The oil passes through the drain hole 9 on the baffle plate 8 and falls into the collector 3. The gas, being lighter, moves upward and passes through the liquid trap 10. The oil mixed in with the gas condenses at the liquid trap 10 and falls back onto the baffle plate 8. The gas is then discharged through the vent pipe 5. When the laboratory needs to test various parameters of the crude oil, the drain valve 12 on the drain pipe 11 of the collector 3 is opened, allowing the oil to fall into the laboratory container 13. After the oil is collected, the drain valve 12 is closed.

[0028] It should be noted that the above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sampling cup for a high gas-oil ratio reservoir, characterized in that: It includes a cup body for gas-liquid separation, a cup lid detachably disposed on the top of the cup body, and a collector detachably disposed at the bottom of the cup body for collecting oil. The cup lid is fixedly provided with an inlet pipe and an outlet pipe, and both the inlet pipe and the outlet pipe are detachably provided with plugs; The cup body is fixedly provided with a liquid separating baffle for separating oil gas and oil liquid, and the liquid separating baffle is located below the liquid inlet pipe; the cup body is fixedly provided with an inclined flow baffle, and the flow baffle is provided with several drainage holes, and the flow baffle is located between the liquid separating baffle and the collector.

2. The high gas-oil ratio reservoir sampling cup according to claim 1, characterized in that: A liquid-catching net is fixed between the cup body and the cup lid. The liquid inlet pipe passes through the liquid-catching net and extends into the cup body. The air inlet end of the exhaust pipe is located between the liquid-catching net and the cup lid.

3. The high gas-oil ratio reservoir sampling cup according to claim 1 or 2, characterized in that: The tilt angle of the flow-blocking plate is 45° to 60°.

4. The high gas-oil ratio reservoir sampling cup according to claim 3, characterized in that: The angle of inclination of the flow barrier is 45°.

5. The high gas-oil ratio reservoir sampling cup according to any one of claims 1, 2, and 4, characterized in that: A drain pipe is fixedly installed below the collector, and a drain valve is fixedly installed on the drain pipe.

6. The high gas-oil ratio reservoir sampling cup according to claim 5, characterized in that: Along the length of the cup body, the vertical distance between the liquid inlet tube and the liquid distribution baffle is 1 cm to 2 cm.

7. The high gas-oil ratio reservoir sampling cup according to claim 6, characterized in that: The vertical distance between the inlet pipe and the liquid distribution baffle is 1 cm.

8. The high gas-oil ratio reservoir sampling cup according to any one of claims 1, 2, 4, 6, and 7, characterized in that: The exhaust pipe is L-shaped.

9. The high gas-oil ratio reservoir sampling cup according to claim 5, characterized in that: The cup body, cup lid, collector, inlet pipe, vent pipe, liquid separator, flow baffle, drain pipe, and drain pipe valve are all made of metal.

10. The high gas-oil ratio reservoir sampling cup according to any one of claims 1, 2, 4, 6, 7, and 9, characterized in that: A sealing gasket is provided between the cup lid and the cup body, and between the cup body and the collector.

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