Petroleum geological soil sampling device

Abstract

The utility model discloses a petroleum geology soil sampling device, which belongs to the technical field of soil sampling devices and comprises a base, a pair of slide bar cylinders is mounted at the upper end of the base, a connecting plate is fixedly connected between the pair of slide bar cylinders, and a motor is mounted on the connecting plate in an embedded manner. The lower side of the motor is provided with an outer drill rod, the inner part of the outer drill rod is fixedly connected with an inner drill rod, a pair of mounting grooves is formed between the outer drill rod and the inner drill rod, and the interiors of the pair of mounting grooves are respectively provided with a miniature air cylinder. The pair of extrusion spacers are driven by the pair of micro cylinders to move in opposite directions and extend into the inner drill rod, and a soil sample in the inner drill rod is supported and blocked, so that the soil sample in the inner drill rod is not easy to fall off when being taken out upwards, the integrity of the sample is ensured, the sampling effect is enhanced, and subsequent detection is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of soil sampling devices, and more specifically to a petroleum geological soil sampling device. Background Art

[0002] In order to find and identify oil and gas resources, soil sampling devices are often used to sample and analyze the geological soil in the area in order to explore and understand the underground geological conditions, thereby evaluating the probability of oil and gas in the land, looking for clues to oil and gas accumulation, and exploring the area of ​​the oil and gas field, clarifying the distribution of oil and gas layers and production capacity.

[0003] At present, in the process of soil sampling, the soil sampling device generally chooses to drive the hollow drill rod deep into the soil, drill the soil sample into the hollow drill rod, and then pull it upward to drive the sample to be taken out. However, during the upward removal process, some soil samples are prone to fall due to the movement, making the sample incomplete and easily affecting subsequent detection. Moreover, after the sampling is completed, the surface of the hollow drill rod is often covered with mud. The soil sampling device of the prior art is not easy to clean it in time, resulting in the subsequent mud drying and adhering to its surface. It is troublesome to clean it again, which is time-consuming and labor-intensive, and the use effect is poor. Therefore, there is an urgent need to improve the technology of the soil sampling device to improve this equipment.

[0004] Therefore, the utility model provides a petroleum geological soil sampling device. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the problems existing in the prior art, the purpose of the utility model is to provide a petroleum geological soil sampling device, which can realize that after the outer drill rod and the inner drill rod have drilled the soil sample and carried the soil sample upward, a pair of extrusion spacers are driven by a pair of micro-cylinders to move towards each other and extend to the inside of the inner drill rod to support and block the soil sample inside the inner drill rod, so that the soil sample inside the inner drill rod is not easy to fall when being taken out upward, thereby ensuring the integrity of the sample, enhancing the sampling effect, and facilitating subsequent detection.

[0007] 2. Technical solution

[0008] To solve the above problems, the utility model adopts the following technical solutions.

[0009] A petroleum geological soil sampling device comprises a base, wherein a pair of sliding rod cylinders are installed at the upper end of the base, a connecting plate is fixedly connected between the pair of sliding rod cylinders, and a motor is embedded and installed on the connecting plate, an outer drill rod is provided on the lower side of the motor, and an inner drill rod is fixedly connected inside the outer drill rod, a pair of mounting grooves are drilled between the outer drill rod and the inner drill rod, and micro cylinders are installed inside the pair of mounting grooves, and an extrusion spacer is fixedly connected to the output ends of the pair of micro cylinders, an extrusion discharging mechanism is installed between the outer drill rod and the inner drill rod, and the extrusion discharging mechanism is located on the lower side of the motor, a cleaning mechanism is installed on the inner wall of the base, and two pairs of self-locking universal wheels are installed at the lower end of the base.

[0010] Furthermore, the adjacent ends of a pair of extrusion spacers are both conical.

[0011] Furthermore, the inner walls of the pair of mounting grooves are fixedly connected with sealing wipers, and the outer ends of the pair of sealing wipers are in close contact with the ends of the pair of extrusion spacers respectively.

[0012] Furthermore, the cleaning mechanism includes a pair of electric telescopic rods embedded in the inner wall of the base, the ends of the pair of electric telescopic rods that are close to each other are fixedly connected to an arc-shaped plate, and the inner walls of the pair of arc-shaped plates are fixedly connected to an arc-shaped cleaning brush body, and the inner diameter of the arc-shaped cleaning brush body matches the outer diameter of the outer drill rod.

[0013] Furthermore, the extrusion discharging mechanism includes an extrusion cylinder installed on the upper end of the outer drill rod, the upper end of the extrusion cylinder is fixedly connected to the output end of the motor, a through hole is drilled at the upper end of the outer drill rod, and the output end of the extrusion cylinder passes through the through hole and extends into the inner drill rod, a piston is slidably connected to the inside of the inner drill rod, and the upper end of the piston is fixedly connected to the output end of the extrusion cylinder.

[0014] 3. Beneficial effects

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] (1) According to the utility model, after the outer drill rod and the inner drill rod have drilled the soil sample and carried the soil sample upward, a pair of extrusion spacers are driven by a pair of micro-cylinders to move toward each other and extend to the inside of the inner drill rod to support and block the soil sample inside the inner drill rod, so that the soil sample inside the inner drill rod is not likely to fall when being taken out upward, thereby ensuring the integrity of the sample and enhancing the sampling effect, so as to facilitate subsequent detection.

[0017] (2) In the utility model, during the process of the outer drill rod and the inner drill rod carrying the soil sample upward for removal, the cleaning mechanism can promptly clean the mud adhering to the outer drill rod, thereby avoiding difficulty in cleaning after the mud has dried up and reducing the trouble of cleaning. At the same time, the extrusion discharging mechanism can squeeze the soil sample inside the inner drill rod for rapid discharging, thereby improving the discharging efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 For this utility model Figure 1 A schematic diagram of the partially enlarged structure at center A;

[0020] Figure 3 It is a schematic diagram of the cross-sectional structure of the outer drill rod and the inner drill rod in the utility model;

[0021] Figure 4 For this utility model Figure 3 Schematic diagram of the local enlarged structure at point B in the middle.

[0022] Description of the numbers in the figure:

[0023] 1. Base; 2. Sliding rod cylinder; 3. Connecting plate; 4. Motor; 5. External drill rod; 6. Internal drill rod; 7. Mounting slot; 8. Micro cylinder; 9. Extrusion spacer; 10. Sealing wiper block; 11. Cleaning mechanism; 1101. Electric telescopic rod; 1102. Arc plate; 1103. Arc cleaning brush body; 12. Extrusion discharging mechanism; 1201. Extrusion cylinder; 1202. Through hole; 1203. Piston; 13. Self-locking universal wheel. DETAILED DESCRIPTION

[0024] 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; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0025] Example:

[0026] See also Figure 1-4A petroleum geological soil sampling device comprises a base 1, a pair of sliding rod cylinders 2 are installed at the upper end of the base 1, a connecting plate 3 is fixedly connected between the pair of sliding rod cylinders 2, and a motor 4 is embedded and installed on the connecting plate 3, an outer drill rod 5 is provided on the lower side of the motor 4, and an inner drill rod 6 is fixedly connected inside the outer drill rod 5, a pair of mounting grooves 7 are excavated between the outer drill rod 5 and the inner drill rod 6, and micro cylinders 8 are installed inside the pair of mounting grooves 7, and extrusion spacers 9 are fixedly connected to the output ends of the pair of micro cylinders 8, an extrusion discharging mechanism 12 is installed between the outer drill rod 5 and the inner drill rod 6, and the extrusion discharging mechanism 12 is located at the lower side of the motor 4, a cleaning mechanism 11 is installed on the inner wall of the base 1, and two pairs of self-locking universal wheels 13 are installed at the lower end of the base 1.

[0027] When using the present scheme, first push the soil sampling device to move to the sampling location with the rolling assistance of the self-locking universal wheel 13. After the movement is completed, the self-locking universal wheel 13 is toggled to lock and fix. Then, a pair of slide rod cylinders 2 drives the motor 4 to move downward through the connecting plate 3, so that it drives the outer drill rod 5 and the inner drill rod 6 to move downward. At the same time, the motor 4 drives the outer drill rod 5 and the inner drill rod 6 to rotate, so that the outer drill rod 5 and the inner drill rod 6 rotate while moving downward, deep into the soil, and drill the soil sample into the inner drill rod 6. After the sampling is completed, a pair of slide rod cylinders 2 drives the motor 4 to move upward through the connecting plate 3, so that it drives the outer drill rod 5 and the inner drill rod 6 and the soil sample to move upward. At the same time, a pair of micro-cylinders 8 drives a pair of extrusion spacers 9 to move in opposite directions, pass through the sealing wiper 10, and extend to the inner drill rod 6, support and block the soil sample inside the inner drill rod 6, so that the soil sample inside the inner drill rod 6 is not easy to fall when it is taken out upward, thereby ensuring the sample The integrity of the sample is enhanced, the sampling effect is enhanced, and the subsequent detection is facilitated by a pair of electric telescopic rods 1101 in the cleaning mechanism 11, and a pair of arc-shaped cleaning brush bodies 1103 are respectively pushed to move toward each other until a pair of arc-shaped cleaning brush bodies 1103 and the outer end of the outer drill rod 5 are connected, so that during the upward movement of the outer drill rod 5, the pair of arc-shaped cleaning brush bodies 1103 brush off and clean the mud attached to the surface thereof, so as to avoid difficulty in cleaning after subsequent drying and reduce the trouble of cleaning. Then, after the outer drill rod 5 and the inner drill rod 6 carry the soil sample and reset upward, the extrusion cylinder 1201 in the extrusion discharging mechanism 12 drives the piston 1203 to move downward, and the soil sample inside the inner drill rod 6 is extruded and discharged quickly, so as to facilitate subsequent detection. In this scheme, the sliding rod cylinder 2, the motor 4, the micro cylinder 8, the electric telescopic rod 1101 and the extrusion cylinder 1201 are all mature products known in the prior art and are widely used in daily life. Therefore, they are not elaborated in detail in this scheme.

[0028] See also Figure 4 The ends of a pair of extrusion spacers 9 that are close to each other are both conical.

[0029] During use of the present invention, by setting one end of the extrusion spacer 9 to be tapered, the resistance between the extrusion spacer 9 and the soil sample can be reduced when the extrusion spacer 9 is extruded outward, thereby enhancing its puncture effect.

[0030] See also Figure 4 The inner walls of a pair of mounting grooves 7 are fixedly connected with sealing wipe blocks 10, and the outer ends of the pair of sealing wipe blocks 10 are in close contact with the ends of a pair of extrusion spacers 9 respectively.

[0031] During use of the present invention, the sealing wiper 10 is provided to seal the gap between the mounting groove 7 and the extruded spacer 9, and when the extruded spacer 9 is retracted after use, the dirt remaining on the surface thereof can be wiped off, thereby enhancing the cleaning effect.

[0032] See also Figure 1-2 The cleaning mechanism 11 includes a pair of electric telescopic rods 1101 embedded in the inner wall of the base 1, and the ends of the pair of electric telescopic rods 1101 that are close to each other are fixedly connected with an arc plate 1102, and the inner walls of the pair of arc plates 1102 are fixedly connected with an arc-shaped cleaning brush body 1103, and the inner diameter of the arc-shaped cleaning brush body 1103 matches the outer diameter of the outer drill rod 5.

[0033] During use of the present solution, while the outer drill rod 5 and the inner drill rod 6 are carrying the soil sample to be taken out upward, a pair of electric telescopic rods 1101 respectively push a pair of arc-shaped cleaning brush bodies 1103 to move toward each other until the pair of arc-shaped cleaning brush bodies 1103 and the outer end of the outer drill rod 5 are aligned, so that during the outer drill rod 5 moving upward, the pair of arc-shaped cleaning brush bodies 1103 can brush off and clean the soil adhered to the surface thereof, thereby avoiding difficulty in cleaning after subsequent drying and reducing the trouble of cleaning.

[0034] See also Figure 3 The extrusion discharging mechanism 12 includes an extrusion cylinder 1201 installed on the upper end of the outer drill rod 5, the upper end of the extrusion cylinder 1201 is fixedly connected to the output end of the motor 4, a through hole 1202 is drilled at the upper end of the outer drill rod 5, and the output end of the extrusion cylinder 1201 passes through the through hole 1202 and extends into the inner drill rod 6, a piston 1203 is slidably connected inside the inner drill rod 6, and the upper end of the piston 1203 is fixedly connected to the output end of the extrusion cylinder 1201.

[0035] During use of this solution, when it is necessary to take out the soil sample inside the inner drill rod 6, the extrusion cylinder 1201 drives the piston 1203 to move downward, squeezing the soil sample inside the inner drill rod 6 to quickly discharge the material for subsequent testing.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A petroleum geological soil sampling device, comprising a base (1), characterized in that: A pair of slide cylinders (2) are installed at the upper end of the base (1), a connecting plate (3) is fixedly connected between the pair of slide cylinders (2), and a motor (4) is embedded and installed on the connecting plate (3), an outer drill rod (5) is provided on the lower side of the motor (4), and an inner drill rod (6) is fixedly connected inside the outer drill rod (5), a pair of mounting grooves (7) are excavated between the outer drill rod (5) and the inner drill rod (6), and micro cylinders (8) are installed inside the pair of mounting grooves (7), and an extrusion spacer (9) is fixedly connected to the output ends of the pair of micro cylinders (8), an extrusion discharge mechanism (12) is installed between the outer drill rod (5) and the inner drill rod (6), and the extrusion discharge mechanism (12) is located on the lower side of the motor (4), a cleaning mechanism (11) is installed on the inner wall of the base (1), and two pairs of self-locking universal wheels (13) are installed at the lower end of the base (1).

2. A petroleum geological soil sampling device according to claim 1, characterized in that: The adjacent ends of a pair of extrusion spacers (9) are both conically arranged.

3. A petroleum geological soil sampling device according to claim 1, characterized in that: The inner walls of the pair of mounting grooves (7) are fixedly connected with sealing wipers (10), and the outer ends of the pair of sealing wipers (10) are in close contact with the adjacent ends of the pair of extrusion spacers (9).

4. A petroleum geological soil sampling device according to claim 1, characterized in that: The cleaning mechanism (11) comprises a pair of electric telescopic rods (1101) embedded in the inner wall of the base (1), the adjacent ends of the pair of electric telescopic rods (1101) are fixedly connected to arc plates (1102), and the inner walls of the pair of arc plates (1102) are fixedly connected to arc-shaped cleaning brush bodies (1103), and the inner diameter of the arc-shaped cleaning brush bodies (1103) matches the outer diameter of the outer drill rod (5).

5. The petroleum geological soil sampling device according to claim 1, characterized in that: The extrusion discharging mechanism (12) comprises an extrusion cylinder (1201) mounted on the upper end of the outer drill rod (5); the upper end of the extrusion cylinder (1201) is fixedly connected to the output end of the motor (4); a through hole (1202) is drilled at the upper end of the outer drill rod (5); the output end of the extrusion cylinder (1201) passes through the through hole (1202) and extends into the inner drill rod (6); a piston (1203) is slidably connected to the interior of the inner drill rod (6); and the upper end of the piston (1203) is fixedly connected to the output end of the extrusion cylinder (1201).

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