Portable oil gas sampling and recycling device

Abstract

The utility model discloses a portable oil gas sampling and recycling device which comprises a liquid storage tank, a hand pump, an inner funnel, an outer funnel, a gas-liquid separation plate, a fan, a particle filling layer, a gate and a liquid flow pipeline, a liquid flow pipeline of the device is connected to an oil-gas well sampling port, a gate at the downstream of the sampling port is opened, oil gas enters the inner funnel along the sampling pipeline to impact fan blades so as to drive the fan to continuously rotate, and the oil liquid is scattered by the fan blades, then is adsorbed on the inclined gas-liquid separation plate, finally flows to the bottom of the inner funnel and enters the liquid storage tank; gas mixed in the oil liquid is separated out; all gas in the device escapes from a gas sample outlet after being filtered by a particle filling layer at the annulus of the inner funnel and the outer funnel, and oil is collected in a liquid storage tank; after the gas sample and the oil sample are collected, redundant oil liquid can be pumped back to the ground through a hand pump; according to the device, the functions of automatic oil-gas separation and sampling and waste liquid recovery are realized, and the sampling quality, the sampling efficiency and the personnel safety are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of oil and gas well sampling, in particular to a portable oil and gas sampling and recovery device. Background Art

[0002] Oil and gas sampling is a process in which oil producers take a certain amount of samples from the surface process of oil and gas wells for testing and analysis in order to determine the oil and gas quality, oil and gas production capacity, water content and other information of the oil layer.

[0003] The sampling method currently commonly used on site is: the sampling personnel stand at the upwind position, aim the sewage bucket at the sampling elbow, slowly open the sampling valve, put the dead oil into the sewage bucket, and when fresh production liquid sprays out, change the sampling bucket to receive it, and then analyze the sample. The above method is suitable for taking oil samples. When taking gas samples, the principle of gas escaping is used to collect the samples by inserting a tube during the sealed access.

[0004] The existing sampling method has high requirements on operators. Standing downwind will inhale harmful gases in the produced liquid. Careless operation may cause the sampling liquid to spray onto the ground and pollute the environment. At the same time, the volume of the sampling liquid will increase, increasing the difficulty of on-site hazardous waste treatment.

[0005] Therefore, the prior art still needs to be improved and enhanced. Summary of the invention

[0006] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a portable oil and gas sampling and recovery device, aiming to solve the problems in the prior art that sampling is inconvenient and easily causes safety hazards to personnel and the environment during sampling.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] In a first aspect, a portable oil and gas sampling and recovery device comprises:

[0009] A liquid storage tank, wherein a plurality of supporting legs are provided at the lower end of the liquid storage tank;

[0010] An external funnel is arranged on the liquid storage tank and is in communication with the liquid storage tank;

[0011] The inner funnel is sleeved in the outer funnel through a support block and forms an annulus with the outer funnel. A granular filler layer is arranged in the annulus, and a plurality of gas-liquid separation plates are arranged in a stepped manner inside the inner funnel;

[0012] A liquid inlet valve is arranged on the outer funnel and is connected with the inner funnel;

[0013] The sampler is arranged on one side of the liquid storage tank and located at the lower end of the liquid storage tank;

[0014] The gas sample outlet is arranged on the outer funnel and communicated with the annulus;

[0015] The liquid level sensor assembly is sealed and connected to the liquid storage tank.

[0016] Furthermore, the liquid level indicator includes a float and a transparent observation sleeve, the transparent observation sleeve is sealed and connected to the liquid storage tank, the float is arranged in the liquid storage tank and extends to the transparent observation sleeve.

[0017] Furthermore, it also includes:

[0018] The hand pressure pump is arranged on the liquid storage tank and is connected to the liquid inlet valve through a pipeline, and the hand pressure pump is a one-way pump.

[0019] Furthermore, the sampler includes a sampling tube and a cock, the sampling tube is connected to the liquid storage tank, and the cock is arranged in the middle of the sampling tube.

[0020] Furthermore, a fan is provided inside the inner funnel, and the blades of the fan are located below the connection port between the liquid inlet valve and the inner funnel.

[0021] Furthermore, a liquid inlet pipe and a liquid delivery pipe are provided on the liquid inlet valve, the liquid inlet pipe is connected to the oil and gas well pipeline, the liquid delivery pipe is connected between the liquid inlet valve and the inner funnel, and the diameter of the liquid delivery pipe is smaller than the diameter of the liquid inlet pipe.

[0022] The technical solution adopted by the utility model has the following beneficial effects:

[0023] In the present application, the liquid flow pipeline of the device is connected to the sampling port of the oil and gas well, and the gate downstream of the sampling port is opened. The oil and gas enter the inner funnel along the sampling pipeline to impact the fan blades, thereby driving the fan to rotate continuously. The oil is broken up by the blades and adsorbed on the inclined gas-liquid separation plate, and finally flows to the bottom of the inner funnel and enters the liquid storage tank, and the gas mixed in the oil is separated; all the gases in the device are filtered through the particle filling layer in the annulus of the inner funnel and the outer funnel, and then escape from the gas sample outlet, and the oil is collected in the liquid storage tank; after the gas sample and the oil sample are collected, the excess oil can be pumped back to the ground process by a hand pump; the present device realizes the functions of automatic oil and gas separation sampling and waste liquid recovery, which greatly improves the sampling quality, efficiency and personnel safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of the structure of a portable oil and gas sampling and recovery device provided by the utility model;

[0025] Figure 2 The utility model provides a cross-sectional structural diagram of a portable oil and gas sampling and recovery device.

[0026] 1. Liquid storage tank; 2. Support feet; 3. External funnel; 4. Internal funnel; 5. Granular packing layer; 6. Pipeline; 7. Gas-liquid separation plate; 8. Liquid inlet valve; 9. Liquid level gauge assembly; 10. Gas sample outlet; 11. Float; 12. Transparent observation sleeve; 13. Hand pump; 14. Sampling tube; 15. Cock; 16. Fan; 17. Liquid inlet pipe; 18. Infusion tube; 19. Support block. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and effect of the utility model clearer and more specific, the utility model is further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0028] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it can be directly on the other component or indirectly on the other component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or indirectly connected to the other component.

[0029] It should also be noted that the same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[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 technical features indicated. Therefore, a feature defined as "first" or "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] First, see Figure 1 and Figure 2A portable oil and gas sampling and recovery device comprises a liquid storage tank 1, wherein a plurality of legs 2 are provided at the lower end of the liquid storage tank 1; an outer funnel 3 is provided on the liquid storage tank 1 and is communicated with the liquid storage tank 1; an inner funnel 4 is sleeved in the outer funnel 3 through a supporting block and forms an annulus with the outer funnel 3, wherein a granular filler layer 5 is arranged in the annulus, and a plurality of gas-liquid separation plates 7 are arranged in a stepped manner inside the inner funnel 4; a liquid inlet valve 8 is provided on the outer funnel 3 and is communicated with the inner funnel 4; a sampler is provided on one side of the liquid storage tank 1 and is located at the lower end of the liquid storage tank 1; a gas sample outlet 10 is provided on the outer funnel 3 and is communicated with the annulus; a liquid level sensor assembly 9 is sealed and connected to the liquid storage tank 1.

[0032] In the embodiment of the present invention, the particle filler layer 5 mainly uses particle fillers such as iron filings to facilitate filtering impurities in the gas. Figure 2 In the figure, the particle filler layer 5 is mainly a simple schematic diagram and is not fully displayed. When the gas passes through the particle filler layer 5, water and other impurities will be filtered out and then the gas will be discharged. In addition, the upper cover of the outer funnel 3 is detachable, and the upper cover and the outer funnel 3 are sealed and fixed by sealing strips and screws.

[0033] The liquid flow pipeline of the device is connected to the sampling port of the oil and gas well, and the gate downstream of the sampling port is opened. The oil and gas enter the inner funnel 4 along the liquid inlet valve 8, and the oil passes through the gas-liquid separation plate 7 arranged in an inclined stepped manner and finally flows to the bottom of the inner funnel 4 and enters the liquid storage tank 1. The gas mixed in the oil is separated, and the gas in the device is filtered through the inner funnel 4 and the annular particle packing layer 5 of the outer funnel 3 and escapes from the gas sample outlet 10 to realize gas sample collection; when the sampler is opened, the oil in the liquid storage tank 1 flows out from the oil sample outlet to realize oil sample collection; non-contact sampling of oil and gas is realized, the safety of personnel and the environment is ensured, and at the same time the sampling efficiency is improved and the oil and gas separation during sampling is strengthened.

[0034] Among them, see Figure 1 and Figure 2 The liquid level indicator includes a float 11 and a transparent cover. The transparent cover 12 is sealed and connected to the liquid storage tank 1. The float 11 is arranged in the liquid storage tank 1 and extends to the transparent cover 12. While ensuring sealing, it is also convenient to observe the oil amount in the liquid storage tank 1.

[0035] It should be noted that, in this embodiment, the hand pump 13 is a one-way pump. When collecting oil, it can ensure that the oil input from the liquid inlet pipe 17 enters the funnel through the liquid inlet valve 8. At the same time, the hand pump 13 is a pumping device designed for portability, and other devices such as electric pumps with other power supplies can also be used.

[0036] In this example, see Figure 1 and Figure 2The sampler includes a sampling tube 14 and a cock 15. The sampling tube 14 is connected to the liquid storage tank 1. The cock 15 is arranged in the middle of the sampling tube 14. When the cock 15 is opened, the oil can flow out of the liquid storage tank 1 along the sampling tube 14, thereby realizing convenient sampling.

[0037] Also, see Figure 1 and Figure 2 A fan 16 is provided inside the inner funnel 4, and the blades of the fan 16 are located below the connection port between the liquid inlet valve 8 and the inner funnel 4. The oil and gas enter the inner funnel 4 along the liquid infusion pipe 18 and impact the blades of the fan 16, thereby driving the fan 16 to rotate continuously. After the oil is broken up by the blades, it is adsorbed on the inclined gas-liquid separation plate 7 and finally flows to the bottom of the inner funnel 4 and enters the liquid storage tank 1, further enhancing the efficiency of gas-liquid separation and facilitating sampling.

[0038] In this example, see Figure 1 and Figure 2 The liquid inlet valve 8 is provided with a liquid inlet pipe 17 and a liquid delivery pipe 18. The liquid inlet pipe 17 is connected to the oil and gas well pipeline. The liquid delivery pipe 18 is connected between the liquid inlet valve 8 and the inner funnel 4, and the diameter of the liquid delivery pipe 18 is smaller than the diameter of the liquid inlet pipe 17. After the liquid inlet valve 8 is opened, the oil passes through the liquid delivery pipe 18 with a smaller diameter, and the flow rate becomes larger, which impacts the blades of the fan 16 more quickly, so that the blades can rotate for a long time, which can not only disperse the oil, but also accelerate the discharge of gas and improve the oil and gas separation efficiency.

[0039] Also, see Figure 1 and Figure 2 A hand pump 13 is also provided on the liquid storage tank 1, and the hand pump 13 is connected to the bottom of the liquid storage tank 1; and the hand pump 13 is connected to the liquid inlet pipe 17 through the pipeline 6. After the sampling is completed, the cock 15 and the liquid inlet valve 8 are closed, and the excess oil is pumped back to the ground through the hand pump 13. The process: liquid storage tank 1-pipeline 6-liquid inlet pipe 17-ground process, to achieve oil recovery.

[0040] Specifically, the present invention includes the following steps when implemented:

[0041] 1. Installation: Close the liquid inlet valve 8 and cock 15 of the device, and connect the liquid inlet pipe 17 to the ground process sampling port.

[0042] 2. Sampling: prepare the gas collection tool and connect it to the gas outlet, open the liquid inlet valve 8, and the oil and gas enter the inner funnel 4 along the liquid inlet pipe 17 and the liquid delivery pipe 18 to impact the fan blades 16, thereby driving the fan 16 to rotate continuously. The oil is broken up by the fan blades and adsorbed on the inclined gas-liquid separation plate 7, and finally flows to the bottom of the inner funnel 4 and enters the liquid storage tank 1, and the gas mixed in the oil is separated; the gas in the sample is filtered through the inner funnel 4 and the outer funnel 3 particle packing layer 5 and overflows from the gas sample outlet 10 to realize gas sample collection; turn on the cock 15 switch, and the oil in the liquid storage tank 1 flows out from the sampling tube 14 of the sampler to realize oil sample collection. During the sampling process, pay attention to the liquid level sensor assembly 9 and pay attention to the liquid level.

[0043] 3. Recovery: After sampling, close cock 15 and liquid inlet valve 8, and the excess oil can be pumped back to the ground process through hand pump 13.

[0044] The technical solution adopted by the utility model can achieve safe, convenient and environmentally friendly sampling during use, and has the following beneficial effects:

[0045] 1. Safety: non-contact sampling to avoid accidental inhalation of toxic gases;

[0046] 2. Convenient: After the liquid flow pipeline of this device is connected to the sampling port, the gas sample and the oil sample can be collected separately, and the sampling operation is simple and convenient;

[0047] 3. Environmental protection: Excess oil samples can be pumped back to the ground process to avoid oil sample waste and environmental pollution.

[0048] Those skilled in the art will readily come up with other embodiments of the present invention after considering the specification and practicing the solutions disclosed herein. The present invention is intended to cover any variations, uses or adaptations of the present invention, which follow the general principles of the present invention and include common knowledge or customary technical means in the art that are not disclosed in the present disclosure. The specification and examples are to be regarded as exemplary only, and the true scope and spirit of the present invention are indicated by the claims.

Claims

1. A portable oil and gas sampling and recovery device, characterized in that: include: A liquid storage tank, wherein a plurality of legs are provided at the lower end of the liquid storage tank; An external funnel is arranged on the liquid storage tank and is in communication with the liquid storage tank; The inner funnel is sleeved in the outer funnel through a support block and forms an annulus with the outer funnel. A granular filler layer is arranged in the annulus, and a plurality of gas-liquid separation plates are arranged in a stepped manner inside the inner funnel; A liquid inlet valve is arranged on the outer funnel and is connected with the inner funnel; The sampler is arranged on one side of the liquid storage tank and located at the lower end of the liquid storage tank; The gas sample outlet is arranged on the outer funnel and communicated with the annulus; The liquid level sensor assembly is sealed and connected to the liquid storage tank.

2. The portable oil and gas sampling and recovery device according to claim 1 is characterized in that: The liquid level indicator comprises a float and a transparent observation sleeve, wherein the transparent observation sleeve is sealed and connected to the liquid storage tank, and the float is arranged in the liquid storage tank and extends to the transparent observation sleeve.

3. The portable oil and gas sampling and recovery device according to claim 1, characterized in that: It also includes: The hand pressure pump is arranged on the liquid storage tank and is connected to the liquid inlet valve through a pipeline, and the hand pressure pump is a one-way pump.

4. The portable oil and gas sampling and recovery device according to claim 1, characterized in that: The sampler comprises a sampling tube and a cock, the sampling tube is connected to the liquid storage tank, and the cock is arranged in the middle of the sampling tube.

5. The portable oil and gas sampling and recovery device according to claim 1, characterized in that: A fan is also arranged inside the inner funnel, and the blades of the fan are located below the connection port between the liquid inlet valve and the inner funnel.

6. The portable oil and gas sampling and recovery device according to claim 1, characterized in that: The liquid inlet valve is provided with a liquid inlet pipe and a liquid delivery pipe. The liquid inlet pipe is connected to the oil and gas well pipeline. The liquid delivery pipe is connected between the liquid inlet valve and the inner funnel, and the diameter of the liquid delivery pipe is smaller than the diameter of the liquid inlet pipe.

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