Sampling and lifting device for petroleum drilling

Abstract

The utility model discloses a petroleum drilling sampling lifting device which comprises a working table, supporting frames are fixedly connected to the four ends of the lower portion of the working table, fixing frames are fixedly connected to the two ends of the upper portion of the working table, rotating shafts are rotatably connected to the interiors of the fixing frames, and winding wheels are fixedly connected to the middles of the rotating shafts. A connecting wire is wound on the winding wheel, a second gear is fixedly connected to the rotating shaft, a driving motor is fixedly connected to one end of the outer side of the fixing frame, and the driving motor, the rotating rod, the first gear and the second gear can drive the rotating shaft and the winding wheel inside to rotate; according to the petroleum drilling sampling device, winding operation of a connecting line can be achieved through rotation of the winding wheel, so that the sampling barrel can be lifted, the petroleum drilling sampling efficiency of the whole device is improved, meanwhile, stable sampling operation can be achieved by arranging an air cylinder and a piston in the sampling barrel, the labor intensity of workers is reduced, and the sampling effect of the sampling device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of oil drilling, in particular to a sampling and lifting device for oil drilling. Background Art

[0002] Oil drilling refers to the use of oil drilling equipment to drill through multiple strata along the designed trajectory from the ground to the predetermined target layer (oil and gas layer or potential oil and gas layer), forming a stable channel (i.e. oil and gas well) for oil and gas production or injection of the required fluid (water, gas, steam), and completing coring, logging, well logging and testing during and after drilling to obtain various information required for exploration, development and drilling.

[0003] According to patent publication number CN207890947U, a sampling and lifting device for oil drilling includes a base, a take-up drum, a stepper motor and a pull rod. A support frame is fixed on the base, a crossbeam is connected between the top ends of the support frames, a take-up drum is arranged directly below the crossbeam, a stepper motor is installed on the outside of the support frame, a large gear is connected to the output end of the stepper motor, a small gear is meshed above the large gear, the small gear is fixed to the periphery of the rotating shaft, the rotating shaft passes through the take-up drum and is horizontally placed between the support frames, a suspension rope is wound around the periphery of the take-up drum, one end of the suspension rope is fixedly connected to a sampling barrel, a pull rod is movably connected to the top end of the sampling barrel, a piston head is arranged at one end of the pull rod, and a slide groove corresponding to the piston head is opened in the sampling barrel. However, when sampling oil, this device cannot filter the oil, resulting in a large amount of impurities and dust contained in the sampled oil, and soil and gravel are also mixed in it, which reduces the quality of oil sampling.

[0004] In view of this, we propose a sampling lifting device for oil drilling. Utility Model Content

[0005] The utility model aims to provide a sampling and lifting device for oil drilling, which solves the problem in the prior art that when oil is sampled, oil cannot be filtered, resulting in more impurities and dust in the sampled oil.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a sampling lifting device for oil drilling, comprising a workbench, the four lower ends of the workbench are fixedly connected to a support frame, the upper two ends of the workbench are fixedly connected to a fixing frame, the inner part of the fixing frame is rotatably connected to a rotating shaft, the middle part of the rotating shaft is fixedly connected to a winding wheel, and a connecting line is wound around the winding wheel;

[0007] The second gear is fixedly connected to the rotating shaft, a driving motor is fixedly connected to one end of the outer side of the fixing frame, a rotating rod is fixedly connected to the output end of the driving motor, a first gear is fixedly connected to the rotating rod, the first gear and the second gear are meshed with each other, a sampling cylinder is provided at the end of the connecting line, a partition is fixedly connected to the inside of the sampling cylinder, a cylinder is fixedly connected above the partition, a sampling tube is fixedly connected to the lower end of the partition, a piston is provided inwardly at the extending end of the cylinder passing through the sampling tube, a filter is fixedly connected to the lower end of the sampling tube, and a filter is provided inside the filter.

[0008] As a further description of the above technical solution: a controller is fixedly connected to one end of the outer side of the workbench.

[0009] As a further description of the above technical solution: limiting grooves are provided at both ends of the inner side of the filter, and limiting blocks are fixedly connected at both ends of the filter screen. The limiting blocks correspond to the limiting grooves, and positioning grooves are provided inside the limiting blocks.

[0010] As a further description of the above technical solution: a slot is provided at the lower end of the filter, a spring is fixedly connected inside the slot, the other end of the spring is fixedly connected to a limiting plate, the other end of the limiting plate is fixedly connected to a positioning block, and the positioning block corresponds to the positioning slot.

[0011] The utility model has the following beneficial effects:

[0012] 1. Compared with the prior art, the oil drilling sampling and lifting device can drive the internal rotating shaft and the winding wheel to rotate by arranging a driving motor, a rotating rod, a first gear and a second gear. The winding operation of the connecting line can be realized through the rotation of the winding wheel, so that the sampling tube can be lifted, and the oil drilling sampling efficiency of the whole device can be improved. At the same time, the cylinder and the piston are arranged inside the sampling tube to realize stable sampling operation, reduce the labor intensity of the staff, and improve the sampling effect;

[0013] 2. Compared with the prior art, this sampling and lifting device for oil drilling can filter larger sand, gravel and soil by setting a filter and a filter at the bottom of the sampling tube, avoiding the sampling tube from absorbing more impurities, improving the quality of the sampling samples, and the filter is detachable, which is convenient for replacement and maintenance, and is more practical.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention is further described below with reference to the accompanying drawings and embodiments;

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 It is a schematic diagram of the structure of the sampling tube of the utility model.

[0018] Figure 3 It is a schematic diagram of the filter installation structure of the utility model.

[0019] Figure 4 It is a cross-sectional view of a sampling barrel of the utility model.

[0020] Legend:

[0021] 1. Workbench; 2. Support frame; 3. Sampling tube; 4. First gear; 5. Controller; 6. Rotating rod; 7. Driving motor; 8. Second gear; 9. Winding wheel; 10. Connecting line; 11. Rotating shaft; 12. Fixed frame; 13. Cylinder; 14. Partition; 15. Sampling tube; 16. Filter; 17. Filter screen; 18. Limiting groove; 19. Positioning groove; 20. Limiting plate; 21. Slotting; 22. Spring; 23. Positioning block; 24. Limiting block; 25. Piston. DETAILED DESCRIPTION

[0022] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0023] Reference Figure 1-4 The utility model provides an embodiment of a sampling lifting device for oil drilling, comprising a workbench 1, the four lower ends of the workbench 1 are fixedly connected with a support frame 2, and the device can be stably supported by the support frame 2, the upper two ends of the workbench 1 are fixedly connected with a fixing frame 12, the inner rotation of the fixing frame 12 is connected with a rotating shaft 11, the middle part of the rotating shaft 11 is fixedly connected with a winding wheel 9, and a connecting line 10 is wound around the winding wheel 9;

[0024] The second gear 8 is fixedly connected to the rotating shaft 11, and the outer end of the fixed frame 12 is fixedly connected to the driving motor 7. The output end of the driving motor 7 is fixedly connected to the rotating rod 6, and the first gear 4 is fixedly connected to the rotating rod 6. The first gear 4 and the second gear 8 are meshed with each other. Starting the outer driving motor 7 can drive the rotating rod 6 and the first gear 4 to rotate, and under the action of meshing, the second gear 8 and the rotating shaft 11 can be driven to rotate, thereby driving the connecting line 10 to be wound up. The winding of the connecting line 10 can make the sampling tube 3 move downward, ensuring that the sampling tube 3 can enter the interior of the oil drilling well for sampling operations;

[0025] A controller 5 is fixedly connected to one end of the outer side of the workbench 1, and a support frame 2 is fixedly connected to the four ends of the bottom of the workbench 1. The entire device can be controlled by the controller 5 to ensure the smooth progress of its sampling operation;

[0026] A sampling barrel 3 is provided at the end of the connecting line 10, and a partition 14 is fixedly connected to the interior of the sampling barrel 3. The partition 14 can block the oil and divide the entire sampling barrel 3 into two chambers to ensure the sampling operation.

[0027] The upper part of the partition 14 is fixedly connected with the cylinder 13, the lower end of the partition 14 is fixedly connected with the sampling tube 15, the extended end of the cylinder 13 penetrates the sampling tube 15 and is provided with a piston 25 inwardly, the lower end of the sampling tube 15 is fixedly connected with the filter 16, the inner part of the filter 16 is provided with a filter screen 17, after reaching the specified depth, the inner cylinder 13 is started to drive the piston 25 to move, so that the oil in the oil well can be sampled into the inner part of the sampling tube 15, and during the sampling process, the filter 16 and the filter screen 17 are provided at the bottom of the sampling tube 14 to filter the larger sand and soil, so as to avoid the sampling tube 14 from absorbing more impurities and improve the quality of the sample;

[0028] Limiting grooves 18 are provided at both ends of the inner side of the filter 16, and limiting blocks 24 are fixedly connected at both ends of the filter screen 17. The limiting blocks 24 correspond to the limiting grooves 18, and a positioning groove 19 is provided inside the limiting blocks 24. A slot 21 is provided at the lower end of the filter 16, and a spring 22 is fixedly connected inside the slot 21. The other end of the spring 22 is fixedly connected to a limiting plate 20, and the other end of the limiting plate 20 is fixedly connected to a positioning block 23, which corresponds to the positioning groove 19. When the filter screen 17 needs to be disassembled and replaced, the limiting plate 20 is pulled outward, and under the action of the spring 22, the limiting plate 20 can drive the positioning block 23 to retract inward. At this time, the positioning block 23 leaves the inside of the positioning groove 19, and the staff can pull the filter screen 17 downward to disassemble and clean it, thereby improving the filtering effect and use efficiency of the entire device.

[0029] Working principle: When the device is used, first the entire device is fixed and installed in a suitable position so that the sampling tube 3 can correspond to the port of the oil drilling well, and then the outer driving motor 7 is started to drive the rotating rod 6 and the first gear 4 to rotate, and the second gear 8 and the rotating shaft 11 can be driven to rotate under the action of meshing, thereby driving the connecting line 10 to be wound up, and the winding of the connecting line 10 can make the sampling tube 3 move downward to ensure that the sampling tube 3 can enter the interior of the oil drilling well for sampling operations. After reaching the specified depth, the internal cylinder 13 is started to drive the piston 25 to move, so that the oil in the oil drilling well can be sampled into the interior of the sampling tube 15, and in the sampling process, the filter 16 and the filter screen 17 are arranged at the bottom of the sampling tube 14 to filter larger sand and gravel soil, so as to avoid the sampling tube 14 from absorbing more impurities, thereby improving the quality of the sample, and the filter screen 17 is detachable, which is convenient for replacement and maintenance, and is more practical.

[0030] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A sampling and lifting device for oil drilling, comprising a workbench (1), characterized in that: The four lower ends of the workbench (1) are fixedly connected to a support frame (2), the upper two ends of the workbench (1) are fixedly connected to a fixing frame (12), the interior of the fixing frame (12) is rotatably connected to a rotating shaft (11), the middle of the rotating shaft (11) is fixedly connected to a winding wheel (9), and a connecting wire (10) is wound around the winding wheel (9); The rotating shaft (11) is fixedly connected with a second gear (8), an outer end of the fixed frame (12) is fixedly connected with a driving motor (7), an output end of the driving motor (7) is fixedly connected with a rotating rod (6), a first gear (4) is fixedly connected with the rotating rod (6), the first gear (4) and the second gear (8) are meshed with each other, a sampling cylinder (3) is arranged at the end of the connecting line (10), a partition (14) is fixedly connected inside the sampling cylinder (3), a cylinder (13) is fixedly connected above the partition (14), a sampling tube (15) is fixedly connected at the lower end of the partition (14), an extended end of the cylinder (13) penetrates the sampling tube (15) and is provided with a piston (25) inwardly, a filter (16) is fixedly connected at the lower end of the sampling tube (15), a filter screen (17) is arranged inside the filter (16).

2. A sampling and lifting device for oil drilling according to claim 1, characterized in that: A controller (5) is fixedly connected to one outer end of the workbench (1).

3. A sampling and lifting device for oil drilling according to claim 1, characterized in that: The filter (16) has limit grooves (18) at both ends of its inner side, and the filter screen (17) has limit blocks (24) fixedly connected at both ends. The limit blocks (24) correspond to the limit grooves (18), and a positioning groove (19) is provided inside the limit block (24).

4. A sampling and lifting device for oil drilling according to claim 3, characterized in that: The filter (16) has a slot (21) at the lower end, a spring (22) is fixedly connected inside the slot (21), the other end of the spring (22) is fixedly connected to a limit plate (20), the other end of the limit plate (20) is fixedly connected to a positioning block (23), and the positioning block (23) corresponds to the positioning slot (19).

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