A measured gas analysis device for petroleum exploration

Abstract

The application discloses a measured gas analysis device for oil exploration and relates to the technical field of gas detection, which comprises a base, an outer shell cylinder is fixedly installed on the side of a pipeline frame, an inner cylinder is fixedly installed in the outer shell cylinder, a top cover is fixedly installed in the inner cylinder, a bottom cylinder is fixedly installed at the end of the inner cylinder away from the top cover, the bottom cylinder, the inner cylinder and the top cover form a detection chamber, a fixed filter plate is arranged in the detection chamber, a shaking spring is fixedly installed on the fixed filter plate, and a shaking filter plate is fixedly installed at the other end of the shaking spring. The device slows down the speed of the measured gas in the detection chamber through the fixed filter plate and the shaking filter plate, thereby improving the detection time and detection precision of the detection module on the measured gas. Meanwhile, large-particle substances carried in the measured gas are left through the fixed filter plate and the shaking filter plate, and then the measured gas in the detection chamber is detected and analyzed.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of gas detection, in particular to a measured gas analysis device for oil exploration. BACKGROUND

[0002] In the process of oil exploration and exploitation, it is crucial to accurately analyze the composition and concentration of measured gas, which not only contains hydrocarbon components such as methane, ethane, propane, etc. in oil and natural gas, but also contains non-hydrocarbon gases such as hydrogen, oxygen, carbon monoxide, carbon dioxide, hydrogen sulfide, etc. The presence and concentration of these gases directly affect the quality and safety of oil and natural gas, so accurate detection and analysis of them have important practical significance.

[0003] However, in the surveyed well, due to the change of formation pressure, the measured gas is often sprayed out of the wellhead at a very high speed and impact, which brings great challenges to the direct collection and analysis of the gas. The traditional gas sampling method is not only difficult to implement in this case, but also has safety hazards, because the high-speed sprayed gas may cause equipment damage, sample contamination or personnel injury. At the same time, the measured gas often carries a large number of impurity particles, which may cause the detection pipeline or instrument to be blocked, resulting in large analysis data errors. SUMMARY

[0004] In view of the above technical problems, the application proposes the following technical scheme:

[0005] A measured gas analysis device for oil exploration, comprising a base, a pipeline rack fixedly installed on the base, a conveying pipe fixedly installed on the pipeline rack, an outer shell cylinder fixedly installed on the side of the pipeline rack, an inner cylinder fixedly installed in the outer shell cylinder, one end of the conveying pipe being arranged in the inner cylinder, an annular chamber being formed between the inner cylinder and the outer shell cylinder, water being arranged in the annular chamber to reduce the temperature in the inner cylinder, a top cover being fixedly installed in the inner cylinder, a bottom cylinder being fixedly installed at the end of the inner cylinder away from the top cover, the bottom cylinder, the inner cylinder and the top cover forming a detection chamber, a detection module being arranged in the detection chamber, the detection module being fixedly connected with the top cover, an analyzer being fixedly installed at one end of the detection module outside the detection chamber, and the detection module and the analyzer being capable of detecting and analyzing the measured gas in the detection chamber.

[0006] Further, a fixed filter plate is arranged in the detection chamber, the fixed filter plate is fixedly connected with the inner wall of the inner cylinder, a plurality of filter holes are arranged on the fixed filter plate, the fixed filter plate is arranged close to the connection between the conveying pipe and the inner cylinder, so that the measured gas in the conveying pipe can be filtered when entering the inner cylinder, a shaking spring is fixedly installed on the fixed filter plate, and a shaking filter plate is fixedly installed at the other end of the shaking spring.

[0007] Further, the shaking filter plate is provided with a plurality of capillary holes, the capillary holes are smaller than the filter holes on the fixed filter plate, the shaking filter plate is in sliding connection with the inner cylinder, the shaking filter plate is arranged at one end away from the top cover, and the fixed filter plate and the shaking filter plate are used to filter and clean large particles in the measured gas; when the measured gas continuously enters the inner cylinder, the measured gas impacts the shaking filter plate, and the shaking filter plate shakes on the inner cylinder continuously through the shaking spring.

[0008] Further, a plurality of cleaning lead screws are rotatably installed at one end of the bottom cylinder away from the inner cylinder, a belt pulley is fixedly installed at one end of the cleaning lead screw away from the inner cylinder, the belt pulley is arranged outside the detection chamber, a belt is arranged on the belt pulley, and a cleaning motor is also fixedly installed on the bottom cylinder.

[0009] Further, a cleaning lead screw is fixedly installed on an output shaft of the cleaning motor, a cleaning device is also slidingly installed in the bottom cylinder, the cleaning device is arranged in the detection chamber, and the cleaning device is in threaded connection with the cleaning lead screw.

[0010] Further, a plurality of hard brushes are arranged on the cleaning device, the hard brushes are used to clean the inner surface of the inner cylinder, and the cleaning lead screw drives the cleaning device to move away from the bottom cylinder when the cleaning lead screw rotates.

[0011] Further, an air outlet pipe is also fixedly installed on the inner cylinder, the air outlet pipe is arranged at one end of the inner cylinder close to the bottom cylinder, one end of the inner cylinder is arranged in the detection chamber, the other end of the inner cylinder is fixedly installed with a purification module, a plurality of purifiers are arranged in the purification module, and the purification module is in fixed connection with the pipeline frame.

[0012] Compared with the prior art, the beneficial effects of the present application are as follows: (1) the device slows down the speed of the measured gas in the detection chamber through the fixed filter plate and the shaking filter plate, thereby improving the detection time and detection precision of the detection module on the measured gas, and large particle substances carried in the measured gas are left through the fixed filter plate and the shaking filter plate, and then the measured gas is purified through the purification module; (3) the device cleans the capillary holes on the shaking filter plate through the hard brushes, prevents the shaking filter plate from being blocked, and cleans the inner wall of the inner cylinder, so that the device can be recycled. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 It is a whole structure schematic view of the present application.

[0014] Fig. 2 It is a shell cylinder structure schematic view of the present application.

[0015] Fig. 3 It is a shell cylinder structure schematic view of the present application.

[0016] Fig. 4This is a cross-sectional structural diagram of the outer shell, bottom cylinder, inner cylinder, and top cap of the present invention.

[0017] Fig. 5 This is a schematic diagram of the shaking filter plate structure of the present invention.

[0018] Fig. 6 This is a schematic diagram of the detection module structure of the present invention.

[0019] Reference numerals: 101-Base; 102-Conveying pipe; 103-Pipe rack; 201-Outer shell; 202-Bottom shell; 203-Inner shell; 204-Top cover; 206-Fixed filter plate; 207-Shaking spring; 208-Shaking filter plate; 209-Detection module; 210-Outlet pipe; 211-Purification module; 302-Cleaning motor; 303-Pulley; 304-Belt; 305-Cleaning screw; 306-Cleaning device; 401-Analyzer. Detailed Implementation

[0020] like Figs. 1 to 6 As shown, a gas analysis device for oil exploration includes a base 101, a pipe rack 103 fixedly mounted on the base 101, a delivery pipe 102 fixedly mounted on the pipe rack 103, an outer shell 201 fixedly mounted on the side of the pipe rack 103, an inner cylinder 203 fixedly mounted inside the outer shell 201, one end of the delivery pipe 102 being disposed inside the inner cylinder 203, and an annular chamber being formed between the inner cylinder 203 and the outer shell 201. Water is disposed within the annular chamber to lower the temperature inside the inner cylinder 203. A top cover 204 is fixedly installed inside the inner cylinder 203. A bottom cylinder 202 is fixedly installed at the end of the inner cylinder 203 away from the top cover 204. The bottom cylinder 202, the inner cylinder 203, and the top cover 204 form a detection chamber. A detection module 209 is provided in the detection chamber. The detection module 209 is fixedly connected to the top cover 204. An analyzer 401 is fixedly installed at the end of the detection module 209 outside the detection chamber. The detection module 209 and the analyzer 401 can detect and analyze the gas to be tested in the detection chamber.

[0021] like Figs. 4 to 6As shown, a fixed filter plate 206 is installed in the detection chamber, and the fixed filter plate 206 is fixedly connected to the inner wall of the inner cylinder 203. The fixed filter plate 206 has multiple filter holes and is located near the connection between the delivery pipe 102 and the inner cylinder 203. This allows the gas to be tested in the delivery pipe 102 to pass through the fixed filter plate 206 when it enters the inner cylinder 203. A shaking spring 207 is fixedly installed on the fixed filter plate 206, and a shaking filter plate 208 is fixedly installed on the other end of the shaking spring 207. The shaking filter plate 208 has multiple capillary pores, which are smaller than the filter holes on the fixed filter plate 206. The vibrating filter plate 208 is slidably connected to the inner cylinder 203. The vibrating filter plate 208 is located at the end away from the top cover 204. The fixed filter plate 206 and the vibrating filter plate 208 are used to filter and clean large particles in the gas being tested. When the gas being tested continuously enters the inner cylinder 203, it will leave behind large particles. When the gas being tested impacts the vibrating filter plate 208, the vibrating filter plate 208 will continuously vibrate on the inner cylinder 203 through the vibrating spring 207. This is to slow down the movement speed of the exhaust gas while the vibrating filter plate 208 is continuously vibrating, so that the exhaust gas can stay in the inner cylinder 203 for a longer time.

[0022] like Figs. 4 to 6 As shown, multiple cleaning screws 305 are rotatably mounted on the end of the bottom cylinder 202 away from the inner cylinder 203. A pulley 303 is fixedly mounted on the end of each cleaning screw 305 away from the inner cylinder 203. The pulley 303 is located outside the detection chamber, and a belt 304 is mounted on the pulley 303 to synchronously rotate all the cleaning screws 305. A cleaning motor 302 is also fixedly mounted on the bottom cylinder 202, and the cleaning screws 305 are fixedly mounted on the output shaft of the cleaning motor 302. A cleaning device is also slidably mounted inside the bottom cylinder 202. 306. The cleaning device 306 is installed in the detection chamber. The cleaning device 306 is connected to the cleaning screw 305 by a thread. The cleaning device 306 is also equipped with multiple hard brushes for cleaning the inner surface of the inner cylinder 203. When the cleaning screw 305 rotates, it drives the cleaning device 306 to move away from the bottom cylinder 202. When the cleaning device 306 moves to the predetermined position, it will come into contact with the shaking filter plate 208. This is to clean the capillaries on the shaking filter plate 208 so that the shaking filter plate 208 can work normally.

[0023] like Figs. 1 to 3As shown, an exhaust pipe 210 is also fixedly installed on the inner cylinder 203. The exhaust pipe 210 is located at one end of the inner cylinder 203 near the bottom cylinder 202. One end of the inner cylinder 203 is located in the detection chamber. A purification module 211 is fixedly installed at the other end of the inner cylinder 203. The purification module 211 is equipped with various purifiers, so that the gas to be tested is purified by the purifiers after entering the purification module 211. The purification module 211 is fixedly connected to the pipe rack 103.

[0024] Working principle: When this device is in use, the delivery pipe 102 is connected to the external gas pipeline to be tested, and then the gas to be tested enters the inner cylinder 203. The gas to be tested then enters the detection chamber. As the gas to be tested continuously enters the detection chamber, it leaves behind large particles. When the gas to be tested impacts the vibrating filter plate 208, the vibrating filter plate 208 will continuously vibrate on the inner cylinder 203 through the vibrating spring 207. This is to slow down the movement speed of the gas to be tested while the vibrating filter plate 208 is constantly vibrating, so that the gas to be tested can stay in the inner cylinder 203 for a longer time, thereby improving the detection time and detection accuracy of the detection module 209. After the gas to be tested passes through the fixed filter plate 206 and the vibrating filter plate 208, it will enter the purification module 211 through the gas outlet pipe 210. The gas to be tested is then purified by the purification module 211 and discharged.

[0025] After the device is finished being used, the cleaning motor 302 can be started, which will drive the cleaning screw 305 to rotate. When the cleaning screw 305 rotates, it will drive the cleaning device 306 to move away from the bottom cylinder 202. When the cleaning device 306 moves to the predetermined position, it will come into contact with the shaking filter plate 208. This is to clean the capillaries on the shaking filter plate 208, so that the shaking filter plate 208 can return to normal working condition and prevent the capillaries on the shaking filter plate 208 from being blocked.

Claims

1. A gas analysis device for petroleum exploration, comprising a base (101), a pipe rack (103) fixedly mounted on the base (101), and a delivery pipe (102) fixedly mounted on the pipe rack (103), characterized in that: An outer shell (201) is fixedly installed on the side of the pipe rack (103), and an inner cylinder (203) is fixedly installed inside the outer shell (201). One end of the conveying pipe (102) is located inside the inner cylinder (203). An annular chamber is formed between the inner cylinder (203) and the outer shell (201). Water is placed in the annular chamber to reduce the temperature inside the inner cylinder (203). A top cover (204) is fixedly installed inside the inner cylinder (203), and the inner cylinder (203) is far away from the top cover (204). 4) A bottom cylinder (202) is fixedly installed at one end. The bottom cylinder (202), inner cylinder (203), and top cover (204) form a detection chamber. A detection module (209) is provided in the detection chamber. The detection module (209) is fixedly connected to the top cover (204). An analyzer (401) is fixedly installed at one end of the detection module (209) outside the detection chamber. The detection module (209) and the analyzer (401) can detect and analyze the gas to be tested in the detection chamber. A fixed filter plate (206) is provided in the detection chamber. The fixed filter plate (206) is fixedly connected to the inner wall of the inner cylinder (203). The fixed filter plate (206) is provided with multiple filter holes. The fixed filter plate (206) is located near the connection between the conveying pipe (102) and the inner cylinder (203). This allows the gas to be tested in the conveying pipe (102) to be filtered by the fixed filter plate (206) when it enters the inner cylinder (203). A shaking spring (207) is fixedly installed on the fixed filter plate (206). A shaking filter plate (208) is fixedly installed on the other end of the shaking spring (207). The vibrating filter plate (208) is provided with multiple capillary pores, which are smaller than the filter holes on the fixed filter plate (206). The vibrating filter plate (208) is slidably connected to the inner cylinder (203). The vibrating filter plate (208) is located at the end away from the top cover (204). The fixed filter plate (206) and the vibrating filter plate (208) are used to filter and clean large particles in the gas being tested. When the gas being tested continuously enters the inner cylinder (203), the gas being tested will impact the vibrating filter plate (208), causing the vibrating filter plate (208) to continuously vibrate on the inner cylinder (203) through the vibrating spring (207).

2. The gas analysis device for petroleum exploration according to claim 1, characterized in that: Multiple cleaning screws (305) are rotatably mounted on the end of the bottom cylinder (202) away from the inner cylinder (203). A pulley (303) is fixedly mounted on the end of the cleaning screw (305) away from the inner cylinder (203). The pulley (303) is located outside the detection chamber. A belt (304) is provided on the pulley (303). A cleaning motor (302) is also fixedly mounted on the bottom cylinder (202).

3. The gas analysis device for petroleum exploration according to claim 2, characterized in that: A cleaning screw (305) is fixedly installed on the output shaft of the cleaning motor (302), and a cleaning device (306) is slidably installed inside the bottom cylinder (202). The cleaning device (306) is located in the detection chamber, and the cleaning device (306) is connected to the cleaning screw (305) by a thread.

4. The gas analysis device for petroleum exploration according to claim 3, characterized in that: The cleaning device (306) is also equipped with a number of hard brushes for cleaning the inner surface of the inner cylinder (203). When the cleaning screw (305) rotates, it drives the cleaning device (306) to move away from the bottom cylinder (202).

5. The gas analysis device for petroleum exploration according to claim 1, characterized in that: An air outlet pipe (210) is also fixedly installed on the inner cylinder (203). The air outlet pipe (210) is located at one end of the inner cylinder (203) near the bottom cylinder (202). One end of the inner cylinder (203) is located in the detection chamber. A purification module (211) is fixedly installed at the other end of the inner cylinder (203). The purification module (211) is equipped with various purifiers. The purification module (211) is fixedly connected to the pipe rack (103).

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