A gas concentration dilution device for mud logging

Abstract

The utility model relates to a gas concentration dilution device for well logging technical field, especially a gas concentration dilution device for well logging. Technical scheme: a gas concentration dilution device for well logging, including dilution box, still including barometric concentration monitoring sensor, interactive touch screen, air inlet subassembly, mixed dilution subassembly, solenoid control valve, the front end of dilution box is provided with interactive touch screen, one side of interactive touch screen is provided with barometric concentration monitoring sensor, the inside of dilution box is provided with air inlet subassembly, the rear of air inlet subassembly is provided with solenoid control valve, the rear of solenoid control valve is provided with mixed dilution subassembly. The utility model carries out concentration detection after inhaling external dilution gas and well logging gas through air inlet detection pipe, cooperates solenoid control valve to carry out valve control flow to pipeline, and further realizes the mixed dilution proportioning adjustment function of gas, and finally gas is injected together in the inside of mixed dilution gas pipe and is discharged from exhaust port after mixing, and gas dilution is completed.

Description

Technical Field

[0001] This utility model belongs to the field of gas concentration dilution technology for logging, and specifically relates to a gas concentration dilution device for logging. Background Technology

[0002] Well logging is a crucial step in oil and gas exploration. It involves continuously monitoring and analyzing drilling fluids, cuttings, and gases returned during drilling to obtain information about underground oil and gas reservoirs. Gas analysis is particularly important during well logging, as it helps identify the presence and properties of oil and gas reservoirs. However, gas samples collected directly from the well are often too concentrated for direct analysis with well logging analyzers; therefore, gas sample dilution is necessary.

[0003] Existing gas concentration dilution devices for logging have met the needs of logging analysis to a certain extent, but some problems still exist in practical applications. In particular, the slow diffusion and low mixing efficiency during gas mixing and dilution lead to slow and uneven dilution of the gas concentration for logging. Due to these issues, existing dilution devices often struggle to quickly reach the required concentration range when diluting high-concentration sample gases, and the diluted gas concentration distribution is uneven. This not only increases the time cost of logging analysis but may also adversely affect the analytical results.

[0004] Therefore, in response to the problem of slow and uneven gas concentration dilution in existing logging gas concentration dilution devices, which suffer from slow gas diffusion and low mixing efficiency during gas mixing and dilution, a new logging gas concentration dilution device can be designed. Utility Model Content

[0005] In order to overcome the problem of slow and uneven dilution of gas concentration in existing logging gas concentration dilution devices, which suffer from slow gas diffusion and low mixing efficiency during gas mixing and dilution.

[0006] The technical solution of this utility model is as follows: a gas concentration dilution device for logging, including a dilution tank, a gas pressure concentration monitoring sensor, an interactive touch screen, an air intake component, a mixing and dilution component, and an electromagnetic control valve; an interactive touch screen is provided at the front end of the dilution tank; a gas pressure concentration monitoring sensor is provided on one side of the interactive touch screen; an air intake component is provided inside the dilution tank; an electromagnetic control valve is provided behind the air intake component; a mixing and dilution component is provided behind the electromagnetic control valve; the mixing and dilution component includes a mixing and dilution gas pipe, an air intake port, an exhaust port, and a mixing gas screen.

[0007] Preferably, the external dilution gas and logging gas are drawn in through the intake detection pipe and their concentrations are detected. The flow rate is controlled by an electromagnetic control valve, thereby achieving the function of adjusting the gas mixing and dilution ratio. Finally, the gases are injected into the mixing and dilution gas pipe for mixing and are discharged from the exhaust port to complete the gas dilution. This solves the problem of slow and uneven dilution of logging gas concentration caused by the slow gas diffusion and low mixing efficiency in existing logging gas concentration dilution devices.

[0008] Preferably, the air intake assembly includes an air intake monitoring tube and a gas leak alarm; three sets of gas pressure concentration monitoring sensors are arranged vertically; a gas leak alarm is installed at the rear end of each set of gas pressure concentration monitoring sensors; the air intake monitoring tube is arranged in three sets; and the outer shell of the gas leak alarm is fixedly connected to the outer shell of the dilution tank.

[0009] Preferably, the gas leak alarm is equipped with an air inlet monitoring tube at the rear end, and the monitoring probe of the gas pressure concentration monitoring sensor is located inside the air inlet monitoring tube.

[0010] Preferably, an electromagnetic control valve is installed behind the air intake monitoring pipe, and three sets of electromagnetic control valves are provided. Each set of electromagnetic control valves is connected to the output pipe of the three air intake monitoring pipes, and the electronic control unit of the electromagnetic control valve is interconnected with the interactive touch screen. After the external dilution gas and logging gas are drawn in through the air intake monitoring pipe, the concentration is detected. The electromagnetic control valve controls the flow rate of the pipeline, thereby realizing the function of adjusting the gas mixing and dilution ratio. Finally, the gas is injected into the interior of the mixing and dilution gas pipe for mixing and then discharged from the exhaust port to complete the gas dilution. This solves the problem of slow and uneven dilution of logging gas concentration caused by the slow gas diffusion and low mixing efficiency in existing logging gas concentration dilution devices.

[0011] Preferably, a mixing and dilution gas pipe is provided behind the electromagnetic control valve; the front end of the mixing and dilution gas pipe is provided with an air inlet port, and there are three air inlet ports, and the two ends of the air inlet ports are respectively connected to the interior of the mixing and dilution gas pipe and the output end pipeline of the electromagnetic control valve; an exhaust port is provided on one side of the mixing and dilution gas pipe, and there is one exhaust port, and the exhaust port is connected to the interior of the mixing and dilution gas pipe.

[0012] Preferably, a mixing screen is provided inside the mixing hole of the mixing and dilution tube, and the mixing screen is fixedly connected to the inner wall of the mixing and dilution tube.

[0013] Preferably, the gas mixing screen has evenly distributed ventilation holes inside, and there are three gas mixing screens. The ventilation holes of the gas mixing screen effectively improve the efficiency of gas diffusion and mixing, and prevent uneven mixing after gas proportioning from causing uneven dilution of the exhaust gas.

[0014] The beneficial effects of this utility model are:

[0015] 1. Existing gas concentration dilution devices for logging suffer from slow and uneven dilution due to slow gas diffusion and low mixing efficiency during gas mixing and dilution. This new device solves the problem of slow and uneven dilution of gas concentration in existing logging gas concentration dilution devices due to slow gas diffusion and low mixing efficiency during gas mixing and dilution. It uses an inlet detection pipe to draw in external dilution gas and logging gas for concentration detection, and an electromagnetic control valve to control the flow rate in the pipeline, thereby achieving the function of adjusting the gas mixing and dilution ratio. Finally, the gas is injected into the mixing and dilution gas pipe for mixing and then discharged from the exhaust port to complete the gas dilution.

[0016] 2. By setting up a gas mixing screen, the ventilation holes of the gas mixing screen effectively improve the efficiency of gas diffusion and mixing, and prevent uneven mixing after gas proportioning from causing uneven dilution of the return gas. Attached Figure Description

[0017] Figure 1 The diagram shown is a three-dimensional structural schematic of a gas concentration dilution device for logging according to this utility model.

[0018] Figure 2 The diagram shown is a side-view perspective of the overall structure of a gas concentration dilution device for logging according to this utility model.

[0019] Figure 3 The diagram shown is a side-view perspective of the internal structure of the dilution tank of a gas concentration dilution device for logging according to this utility model.

[0020] Figure 4 The diagram shown is a horizontal cross-sectional perspective view of the mixing and dilution component of a gas concentration dilution device for logging according to this utility model.

[0021] The labels in the attached diagram are as follows: 1. Dilution tank; 2. Gas pressure concentration monitoring sensor; 3. Interactive touch screen; 4. Air intake assembly; 5. Mixing and dilution assembly; 6. Electromagnetic control valve; 401. Air intake monitoring pipe; 402. Gas leak alarm; 501. Mixing and dilution gas pipe; 502. Air intake port; 503. Exhaust port; 504. Mixing gas screen. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Please see Figure 1-4This utility model provides an embodiment: a gas concentration dilution device for logging, including a dilution tank 1, a gas pressure concentration monitoring sensor 2, an interactive touch screen 3, an air intake component 4, a mixing and dilution component 5, and an electromagnetic control valve 6; the interactive touch screen 3 is provided at the front end of the dilution tank 1; the gas pressure concentration monitoring sensor 2 is provided on one side of the interactive touch screen 3; the air intake component 4 is provided inside the dilution tank 1; the electromagnetic control valve 6 is provided behind the air intake component 4; the mixing and dilution component 5 is provided behind the electromagnetic control valve 6; the mixing and dilution component 5 includes a mixing and dilution gas pipe 501, an air intake port 502, an exhaust port 503, and a mixing gas screen 504.

[0024] Please see Figure 1-4 In this embodiment, the air intake assembly 4 includes an air intake monitoring pipe 401 and a gas leak alarm 402; three sets of gas pressure concentration monitoring sensors 2 are arranged vertically; a gas leak alarm 402 is provided at the rear end of each set of gas pressure concentration monitoring sensors 2, and three sets of air intake monitoring pipes 401 are provided, and the outer shell of the gas leak alarm 402 is fixedly connected to the outer shell of the dilution tank 1.

[0025] Please see Figure 1-4 In this embodiment, the gas leak alarm 402 is provided with an air inlet monitoring pipe 401 at its rear end, and the monitoring probe of the gas pressure concentration monitoring sensor 2 is located inside the air inlet monitoring pipe 401.

[0026] Please see Figure 1-4 In this embodiment, an electromagnetic control valve 6 is provided behind the intake monitoring pipe 401, and three sets of electromagnetic control valves 6 are provided. Each set of electromagnetic control valves 6 is connected to the output pipe of three intake monitoring pipes 401, and the electronic control unit of the electromagnetic control valve 6 is interconnected with the interactive touch screen 3. A mixing and dilution gas pipe 501 is provided behind the electromagnetic control valve 6. An intake port 502 is provided at the front end of the mixing and dilution gas pipe 501, and three intake ports 502 are provided. The two ends of the intake ports 502 are respectively connected to the mixing and dilution gas pipe 501. The dilution gas pipe 501 is connected to the output end of the electromagnetic control valve 6. An exhaust port 503 is provided on one side of the mixing and dilution gas pipe 501, and there is one exhaust port 503, which is connected to the interior of the mixing and dilution gas pipe 501. A mixing screen 504 is provided inside the mixing hole of the mixing and dilution gas pipe 501, and the mixing screen 504 is fixedly connected to the inner wall of the mixing and dilution gas pipe 501. The mixing screen 504 has three evenly distributed ventilation holes inside.

[0027] During operation, external dilution gas and logging gas are drawn in through the intake detection pipe 401 and their concentrations are detected. The flow rate is controlled by the electromagnetic control valve 6, thereby achieving the function of adjusting the gas mixing and dilution ratio. Finally, the gas is injected into the mixing and dilution gas pipe 501 for mixing and then discharged from the exhaust port 503 to complete the gas dilution. This solves the problem of slow and uneven dilution of logging gas concentration in existing logging gas concentration dilution devices, which suffer from slow gas diffusion and low mixing efficiency during gas mixing and dilution.

[0028] Next, the ventilation holes of the mixed gas screen 504 effectively improve the efficiency of gas diffusion and mixing, and prevent uneven mixing after gas proportioning from causing uneven dilution of the return gas.

[0029] Through the above steps, external dilution gas and logging gas are drawn in through the intake detection pipe 401 and their concentrations are detected. The flow rate of the pipeline is controlled by the electromagnetic control valve 6, thereby realizing the function of adjusting the gas mixing and dilution ratio. Finally, the gas is injected into the mixing and dilution gas pipe 501 for mixing and then discharged from the exhaust port 503 to complete the gas dilution. This avoids the problem of slow and uneven dilution of logging gas concentration caused by the slow gas diffusion and low mixing efficiency of existing logging gas concentration dilution devices.

[0030] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A gas concentration dilution device for logging, comprising a dilution tank (1), characterized in that: It also includes a gas pressure concentration monitoring sensor (2), an interactive touch screen (3), an air intake assembly (4), a mixing and dilution assembly (5), and an electromagnetic control valve (6); the front end of the dilution tank (1) is provided with an interactive touch screen (3); the side of the interactive touch screen (3) is provided with a gas pressure concentration monitoring sensor (2); the inside of the dilution tank (1) is provided with an air intake assembly (4); the rear of the air intake assembly (4) is provided with an electromagnetic control valve (6); the rear of the electromagnetic control valve (6) is provided with a mixing and dilution assembly (5); the mixing and dilution assembly (5) includes a mixing and dilution air pipe (501), an air intake port (502), an exhaust port (503), and a mixing air screen (504).

2. The gas concentration dilution device for logging according to claim 1, characterized in that: The air intake assembly (4) includes an air intake monitoring pipe (401) and a gas leak alarm (402); three sets of gas pressure concentration monitoring sensors (2) are arranged vertically; a gas leak alarm (402) is provided at the rear end of each set of gas pressure concentration monitoring sensors (2), and three sets of air intake monitoring pipes (401) are provided, and the outer shell of the gas leak alarm (402) is fixedly connected to the outer shell of the dilution tank (1).

3. The gas concentration dilution device for logging according to claim 2, characterized in that: The gas leak alarm (402) is equipped with an air inlet monitoring tube (401) at its rear end, and the monitoring probe of the gas pressure concentration monitoring sensor (2) is located inside the air inlet monitoring tube (401).

4. A gas concentration dilution device for logging according to claim 2, characterized in that: An electromagnetic control valve (6) is provided behind the intake monitoring pipe (401), and there are three sets of electromagnetic control valves (6). Each set of electromagnetic control valves (6) is connected to the output pipe of the three intake monitoring pipes (401), and the electronic control unit of the electromagnetic control valve (6) is connected to the interactive touch screen (3) for information communication.

5. A gas concentration dilution device for logging according to claim 4, characterized in that: A mixing and dilution gas pipe (501) is provided behind the electromagnetic control valve (6); an air inlet port (502) is provided at the front end of the mixing and dilution gas pipe (501), and there are three air inlet ports (502), and the two ends of the air inlet ports (502) are respectively connected to the interior of the mixing and dilution gas pipe (501) and the output end pipeline of the electromagnetic control valve (6); an exhaust port (503) is provided on one side of the mixing and dilution gas pipe (501), and there is one exhaust port (503), and the exhaust port (503) is connected to the interior of the mixing and dilution gas pipe (501).

6. A gas concentration dilution device for logging according to claim 5, characterized in that: A mixing screen (504) is provided inside the mixing hole of the mixing and dilution gas pipe (501), and the mixing screen (504) is fixedly connected to the inner wall of the mixing and dilution gas pipe (501).

7. A gas concentration dilution device for logging according to claim 6, characterized in that: The mixed gas screen (504) has uniformly distributed ventilation holes inside, and there are three mixed gas screens (504).

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