Petroleum sampling device for geological exploration

Abstract

The utility model discloses a petroleum sampling device for geological prospecting, which comprises a device bottom plate, a device frame body, an air pump, a first sampling bottle and a second sampling bottle, the device frame body is welded above the device bottom plate, and a tray is fixed at the top end of the device bottom plate below the device frame body. The first sampling bottle and the second sampling bottle are respectively arranged at the top end of the tray, a first sampling opening is formed in the outer wall of the top of the first sampling bottle, a first extraction opening is formed in the top end of the first sampling bottle, and a second sampling opening is formed in the outer wall of the top of the second sampling bottle; a second extraction opening is formed in the top end of the second sampling bottle, and the air pump is mounted at the top end of the device frame body. According to the petroleum sampling bottle, the sampling function of two groups of samples can be completed at a time, petroleum at different depths can be sampled, the petroleum samples cannot be polluted, the surface of the sampling bottle is clean after sampling, the sampling bottle cannot be stained with petroleum, and the sampling bottle is convenient to take and more portable.

Description

Technical Field

[0001] The utility model relates to the technical field of geological exploration, in particular to a petroleum sampling device for geological exploration. Background Art

[0002] Petroleum geological exploration refers to the process of finding and identifying oil and gas resources by using various exploration methods to understand the underground geological conditions, recognize the conditions of oil generation, oil storage, oil and gas migration, accumulation, and preservation, comprehensively evaluate the oil and gas prospects, determine favorable areas for oil and gas accumulation, find oil and gas closures, and explore the area of ​​oil and gas fields, as well as the conditions of oil and gas layers and production capacity. When conducting geological exploration, it is often necessary to sample oil for subsequent detection and analysis of oil components, so a sampling device is needed.

[0003] The Chinese patent with announcement number CN219757815U discloses a sampling device for petroleum geological exploration, including a sampling barrel, oil inlets are opened at the top positions of the inner sides of the sampling barrel, and limit blocks are installed at the positions below the corresponding oil inlets on the inner walls of the two sides of the sampling barrel, and sealing covers are movably provided at the positions of the inner walls of the two sides of the sampling barrel facing the oil inlets, and the corresponding sides of the two sets of sealing covers are respectively fixed to the corresponding ends of the connecting rods.

[0004] Although the above-mentioned sampling device, through the arrangement of components such as the oil inlet, the first pull rope, the sealing cover, the connecting rod, the moving rod, the slide rail, the slider, the moving plate and the second pull rope, makes it difficult for the sampling to cause errors in the detection results after sampling due to the mixing of surface oil, the device can only perform single sampling. When it is necessary to sample the oil at different depths, the sampling tube needs to be lowered into the oil again, which is very troublesome to operate. Moreover, after sampling, the outer surface of the sampling tube will be covered with oil, which is easy to slip when picking up, and is inconvenient to carry. Therefore, it is urgently needed to be improved. Utility Model Content

[0005] The purpose of the utility model is to provide a petroleum sampling device for geological exploration to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a petroleum sampling device for geological exploration, comprising a device bottom plate, a device frame, an air pump, a first sampling bottle and a second sampling bottle, the device frame is welded on the top of the device bottom plate, a tray is fixed on the top of the device bottom plate below the device frame, the first sampling bottle and the second sampling bottle are respectively arranged on the top of the tray, a first sampling port is installed on the outer wall of the top of the first sampling bottle, and a first gas extraction port is installed on the top of the first sampling bottle, a second sampling port is installed on the outer wall of the top of the second sampling bottle, and a second gas extraction port is installed on the top of the second sampling bottle, the air pump is installed on the top of the device frame, and a three-way joint is installed at the input end of the air pump, and a first gas extraction pipe and a second gas extraction pipe are respectively installed on both sides of the bottom end of the three-way joint, and moving wheels are installed at the corner positions of the bottom end of the device bottom plate.

[0007] Preferably, a winding drum is installed on one side of the top of the device frame, and a hand wheel is installed on one end of the winding drum, and a sampling rope is wound on the outer wall of the winding drum to facilitate lowering the first sampling tube and the second sampling tube.

[0008] Preferably, the bottom end of the sampling rope extends to the bottom of the device frame and is fixed with a weight block, and the outer walls on both sides of the weight block are respectively provided with a first slot and a second slot, and the inner walls of the first slot and the second slot are both adhered with friction plates to facilitate fixing the first sampling tube and the second sampling tube.

[0009] Preferably, a first sampling tube is clamped inside the first clamping slot, and the bottom end of the first sampling tube extends to below the weight block, and the top end of the first sampling tube is connected to the first sampling port for one-time sampling.

[0010] Preferably, a second sampling tube is clamped inside the second clamping slot, and the bottom end of the second sampling tube extends to below the weight block, and the top end of the second sampling tube is connected to the second sampling port for secondary sampling.

[0011] Preferably, the bottom end of the first vacuum tube is connected to the first vacuum port, and the bottom end of the second vacuum tube is connected to the second vacuum port, so as to facilitate vacuuming the first sampling bottle and the second sampling bottle.

[0012] Preferably, an oil inlet is provided on the outer wall at the bottom end of the first sampling tube and the second sampling tube, and a rubber diaphragm is adhered to the inside of the oil inlet, and a cross opening is provided at the center position inside the rubber diaphragm, so that oil will not enter the first sampling tube and the second sampling tube under non-negative pressure state, preventing oil at different depths from entering the first sampling tube and the second sampling tube to contaminate the samples, and allowing oil to enter the first sampling tube and the second sampling tube under negative pressure suction state.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the oil sampling device for geological exploration can not only complete the sampling function of two groups of samples at a time, but also can sample oil at different depths, and the oil samples will not be contaminated. After sampling, the surfaces of the first sampling bottle and the second sampling bottle are clean and will not be stained with oil, and the device is easy to take and more portable.

[0014] By arranging a first sampling bottle, a first sampling port, a first air extraction port, a second sampling bottle, a second air extraction port, a second sampling port, a three-way joint, a first air extraction pipe, a second air extraction pipe, a first sampling pipe, and a second sampling pipe, the hand wheel is turned to make the reel unwind the sampling rope, and the sampling rope drives the first sampling pipe and the second sampling pipe to move downward through the weight block, so that the bottom ends of the first sampling pipe and the second sampling pipe extend into the oil, wherein, since rubber diaphragms are provided in the oil inlets at the bottom ends of the first sampling pipe and the second sampling pipe, the setting of the rubber diaphragms prevents the oil from entering the first sampling pipe and the second sampling pipe, and prevents the oil of different depths from entering the first sampling pipe and the second sampling pipe to contaminate the sample, the air pump is started and the valve inside the first air extraction pipe is opened to evacuate the inside of the first sampling bottle, then, the air pump is turned off and the valve at the position of the first sampling port is opened, and the setting of the cross opening inside the rubber diaphragm makes it possible to The oil enters the first sampling tube under the action of pressure suction, and the first sampling tube pumps the oil into the first sampling bottle to complete a sampling work. Then, the air pump is started and the valve inside the second suction tube is opened to evacuate the inside of the second sampling bottle. Then, the reel is rotated continuously to unwind the sampling rope, and the sampling rope drives the weight to move downward, and the second sampling tube is lowered to a deeper level. The air pump is closed, and the valve at the second sampling port is opened. The cross opening inside the rubber diaphragm allows the oil to enter the second sampling tube under the action of negative pressure suction, and the second sampling tube pumps the oil into the second sampling bottle to complete the second sampling work. The device can complete the sampling function of two groups of samples at a time, can sample oil at different depths, and the oil samples will not be contaminated. Moreover, after sampling, the surfaces of the first sampling bottle and the second sampling bottle are clean and will not be stained with oil, so they are easy to take and more portable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front view cross-sectional structural schematic diagram of the utility model;

[0016] Figure 2 It is a partial enlarged structural schematic diagram of the utility model;

[0017] Figure 3 This is a schematic diagram of the cross-sectional enlarged structure of the weight block of the utility model;

[0018] Figure 4 It is a schematic diagram of an enlarged top view of the weight block of the utility model.

[0019] In the figure: 1. device bottom plate; 2. moving wheel; 3. device frame; 4. tray; 5. sampling rope; 6. weight block; 601. first slot; 602. second slot; 603. friction plate; 7. take-up drum; 8. hand wheel; 9. air pump; 10. three-way connector; 1001. first air extraction pipe; 1002. second air extraction pipe; 11. first sampling bottle; 12. first sampling port; 13. first air extraction port; 14. second air extraction port; 15. second sampling bottle; 16. second sampling port; 17. first sampling tube; 18. second sampling tube; 19. oil inlet; 20. rubber diaphragm; 21. cross opening. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. All other embodiments obtained by ordinary technicians in the field without creative work based on the embodiments of the utility model shall fall within the scope of protection of the utility model.

[0021] See also Figure 1-4 The utility model provides an embodiment: a petroleum sampling device for geological exploration, comprising a device bottom plate 1, a device frame 3, an air pump 9, a first sampling bottle 11 and a second sampling bottle 15, the device frame 3 is welded on the top of the device bottom plate 1, a tray 4 is fixed on the top of the device bottom plate 1 below the device frame 3, the first sampling bottle 11 and the second sampling bottle 15 are respectively arranged on the top of the tray 4, a first sampling port 12 is installed on the outer wall of the top of the first sampling bottle 11, and a first air extraction port 13 is arranged on the top of the first sampling bottle 11, a second sampling port 16 is installed on the outer wall of the top of the second sampling bottle 15, and a second air extraction port 14 is arranged on the top of the second sampling bottle 15;

[0022] The air pump 9 is installed at the top of the device frame 3, and a three-way joint 10 is installed at the input end of the air pump 9, and a first air extraction pipe 1001 and a second air extraction pipe 1002 are installed on both sides of the bottom end of the three-way joint 10, and moving wheels 2 are installed at the corner positions of the bottom end of the device bottom plate 1;

[0023] A winding drum 7 is installed on one side of the top of the device frame 3, and a hand wheel 8 is installed at one end of the winding drum 7, and a sampling rope 5 is wound on the outer wall of the winding drum 7, so as to facilitate the lowering of the first sampling tube 17 and the second sampling tube 18;

[0024] The bottom end of the sampling rope 5 extends to the bottom of the device frame 3 and is fixed with a weight block 6, and the outer walls on both sides of the weight block 6 are respectively provided with a first slot 601 and a second slot 602, and the inner walls of the first slot 601 and the second slot 602 are both adhered with a friction plate 603, so as to facilitate the fixing of the first sampling tube 17 and the second sampling tube 18;

[0025] The first sampling tube 17 is clamped inside the first clamping slot 601, and the bottom end of the first sampling tube 17 extends to the bottom of the weight 6, and the top end of the first sampling tube 17 is connected to the first sampling port 12 for one-time sampling;

[0026] The second sampling tube 18 is clamped inside the second clamping slot 602, and the bottom end of the second sampling tube 18 extends to the bottom of the weight 6, and the top end of the second sampling tube 18 is connected to the second sampling port 16 for secondary sampling;

[0027] The bottom end of the first vacuum pipe 1001 is connected to the first vacuum port 13, and the bottom end of the second vacuum pipe 1002 is connected to the second vacuum port 14, so as to facilitate vacuuming the first sampling bottle 11 and the second sampling bottle 15;

[0028] An oil inlet 19 is provided on the outer wall of the bottom end of the first sampling tube 17 and the second sampling tube 18, and a rubber diaphragm 20 is adhered to the inside of the oil inlet 19, and a cross opening 21 is provided at the center position inside the rubber diaphragm 20, so that oil will not enter the first sampling tube 17 and the second sampling tube 18 under non-negative pressure state, and oil at different depths is prevented from entering the first sampling tube 17 and the second sampling tube 18 to contaminate the samples, and oil can enter the first sampling tube 17 and the second sampling tube 18 under negative pressure suction state.

[0029] When the embodiment of the present application is used: first, the device is pushed to move it to the sampling position, and then the first sampling bottle 11 and the second sampling bottle 15 are placed on the top of the tray 4 respectively, and the first air extraction pipe 1001 at the bottom of the three-way joint 10 is connected to the first air extraction port 13 at the top of the first sampling bottle 11, and the second air extraction pipe 1002 at the bottom of the three-way joint 10 is connected to the second air extraction port 14 at the top of the second sampling bottle 15, and then the first sampling tube 17 is clamped in the first clamping groove 601 on the outer wall of the weight block 6, and the top of the first sampling tube 17 is connected to the first sampling port 12 on the outer wall of the first sampling bottle 11, and the second sampling tube 18 is clamped in the second clamping groove 602 on the outer wall of the weight block 6. The top end of the second sampling tube 18 is connected to the second sampling port 16 on the outer wall of the second sampling bottle 15. The setting of the friction plate 603 increases the friction force to prevent the first sampling tube 17 and the second sampling tube 18 from falling off. Then, the hand wheel 8 is turned to make the reel 7 unwind the sampling rope 5. The sampling rope 5 drives the first sampling tube 17 and the second sampling tube 18 to move downward through the weight 6, so that the bottom ends of the first sampling tube 17 and the second sampling tube 18 extend into the oil. In particular, since the oil inlet 19 at the bottom ends of the first sampling tube 17 and the second sampling tube 18 is provided with a rubber diaphragm 20, the setting of the rubber diaphragm 20 prevents the oil from entering the first sampling tube 17 and the second sampling tube 18, preventing Prevent oil from different depths from entering the first sampling tube 17 and the second sampling tube 18 to contaminate the samples. At this time, start the air pump 9 and open the valve inside the first suction tube 1001 to evacuate the inside of the first sampling bottle 11. Then, turn off the air pump 9 and open the valve at the first sampling port 12. The cross opening 21 inside the rubber diaphragm 20 allows the oil to enter the first sampling tube 17 under the action of negative pressure suction. The first sampling tube 17 pumps the oil into the first sampling bottle 11 to complete a sampling operation. Then, start the air pump 9 and open the valve inside the second suction tube 1002 to evacuate the inside of the second sampling bottle 15. Then, continue to rotate the collecting The reel 7 unwinds the sampling rope 5, and the sampling rope 5 drives the weight 6 to move downward, lowering the second sampling tube 18 to a deeper depth, closing the air pump 9, and opening the valve at the second sampling port 16. The cross opening 21 inside the rubber diaphragm 20 allows the oil to enter the second sampling tube 18 under the action of negative pressure suction, and the second sampling tube 18 pumps the oil into the second sampling bottle 15 to complete the second sampling work. The device can complete the sampling function of two groups of samples at a time, and can sample oil at different depths, and the oil sample will not be contaminated. Moreover, after sampling, the surfaces of the first sampling bottle 11 and the second sampling bottle 15 are clean and will not be stained with oil, so they are easy to take and more portable.

Claims

1. A petroleum sampling device for geological exploration, characterized in that: The device comprises a device bottom plate (1), a device frame (3), an air pump (9), a first sampling bottle (11) and a second sampling bottle (15); the device frame (3) is welded to the top of the device bottom plate (1); a tray (4) is fixed to the top of the device bottom plate (1) below the device frame (3); the first sampling bottle (11) and the second sampling bottle (15) are respectively arranged on the top of the tray (4); a first sampling port (12) is installed on the outer wall of the top of the first sampling bottle (11); and a first extraction port (12) is arranged on the top of the first sampling bottle (11). The second sampling bottle (15) has a second sampling port (16) installed on the outer wall at the top, and the second sampling bottle (15) has a second air extraction port (14) installed at the top. The air pump (9) is installed at the top of the device frame (3), and a three-way joint (10) is installed at the input end of the air pump (9), and the first air extraction pipe (1001) and the second air extraction pipe (1002) are installed on both sides of the bottom end of the three-way joint (10), respectively. The bottom corners of the device bottom plate (1) are all equipped with moving wheels (2).

2. The petroleum sampling device for geological exploration according to claim 1, characterized in that: A winding drum (7) is installed on one side of the top of the device frame (3), a hand wheel (8) is installed on one end of the winding drum (7), and a sampling rope (5) is wound on the outer wall of the winding drum (7).

3. A petroleum sampling device for geological exploration according to claim 2, characterized in that: The bottom end of the sampling rope (5) extends to the bottom of the device frame (3) and is fixed with a weight block (6), and the outer walls on both sides of the weight block (6) are respectively provided with a first card slot (601) and a second card slot (602), and the inner walls of the first card slot (601) and the second card slot (602) are both adhered with friction plates (603).

4. A petroleum sampling device for geological exploration according to claim 3, characterized in that: A first sampling tube (17) is clamped inside the first clamping slot (601), and the bottom end of the first sampling tube (17) extends to below the weight (6), and the top end of the first sampling tube (17) is connected to the first sampling port (12).

5. The petroleum sampling device for geological exploration according to claim 3, characterized in that: A second sampling tube (18) is clamped inside the second clamping groove (602), and the bottom end of the second sampling tube (18) extends to below the weight block (6), and the top end of the second sampling tube (18) is connected to the second sampling port (16).

6. The petroleum sampling device for geological exploration according to claim 1, characterized in that: The bottom end of the first air extraction pipe (1001) is connected to the first air extraction port (13), and the bottom end of the second air extraction pipe (1002) is connected to the second air extraction port (14).

7. A petroleum sampling device for geological exploration according to claim 4, characterized in that: An oil inlet (19) is provided on the outer wall of the bottom end of the first sampling tube (17) and the second sampling tube (18), and a rubber diaphragm (20) is adhered to the inside of the oil inlet (19), and a cross opening (21) is provided at the center position of the inside of the rubber diaphragm (20).

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