Sampling device for detecting volume density of vehicle-mounted fracturing propping agent

Abstract

The utility model belongs to the technical field of vehicle-mounted fracturing propping agent volume density detection, and particularly relates to a sampling device for vehicle-mounted fracturing propping agent volume density detection, which comprises a sampling barrel and a fixing plate, the fixing plate is fixedly connected to the right side of the sampling barrel, and the inner end and the outer end of the sampling barrel are connected with sampling mechanisms. The sampling mechanism comprises sampling units and a sealing unit, the sampling units are arranged at the inner end and the outer end of the sampling barrel, and the sealing unit is arranged on the left side of the sampling units. According to the sampling device for detecting the volume density of the vehicle-mounted fracturing propping agent, when the vehicle-mounted fracturing propping agent is sampled, after an extension pipe at the left end of a sampling pipe is inserted into a sampling position in the vehicle-mounted fracturing propping agent, a handle is rotated to drive a threaded rod to rotate in a threaded hole and move rightwards at the same time, and a piston is driven to move rightwards along the inner side of a sampling barrel; and the vehicle-mounted fracturing propping agent is pumped into the extension pipe and then enters the sampling barrel through the sampling pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle-mounted fracturing proppant volume density detection, in particular to a sampling device for vehicle-mounted fracturing proppant volume density detection. Background Art

[0002] Fracturing proppant is a ceramic particle product with high fracturing strength. It is mainly used for downhole support in oil fields to increase the production of oil and natural gas. It is an environmentally friendly product. Oil wells fracturing with ceramsite proppant can increase production by 30-50% and extend the service life of oil and gas wells. In order to verify whether the finished fracturing proppant is qualified, it is necessary to collect samples of the finished fracturing proppant.

[0003] The existing sampling device cannot seal the sampling port after sampling, so that the fracturing proppant body will fall from the sampling device after sampling.

[0004] For example, a sampling device disclosed in Chinese patent CN220158247U is equipped with a sealing assembly. The existing needle tube insertion area is an open structure, which makes it easy for dust or bacteria to enter the interior and affect the sampling data. An outer sleeve and an inner sleeve are arranged on the right side of the main structure, and the sleeve structure is used to provide the internal threaded sleeve with the ability to rotate, so as to ensure that the threaded sleeve can rotate normally to drive the internal combined screw for rotation adjustment. The connecting rod structure on the right side combines the sealing fixed disk with the right side of the threaded sleeve through the fixing rod. The guide rod structure on the left side of the sealing fixed disk will not rotate, so that it remains stable for inserting into the slot to limit the combined screw. A limiting disk is arranged on the left side of the combined screw, which can cooperate with the threaded rod to provide limitation and installation stability for the sealing plug. The sealing assembly is used to ensure that the interior of the needle tube is in a sealed state to prevent bacteria from entering the interior and affecting the detection.

[0005] However, the sampling needle tube of the sampling device has a fixed length, so it is impossible to sample the fracturing proppants at different depths.

[0006] Therefore, we urgently need to provide a vehicle-mounted sampling device for detecting the density of fracturing proppant with adjustable sampling depth. Utility Model Content

[0007] The utility model aims to provide a vehicle-mounted sampling device for detecting the volume density of fracturing proppants, so as to solve the problem that the sampling needle tube of the sampling device proposed in the above background technology has a fixed length, thereby failing to sample fracturing proppants at different depths.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a vehicle-mounted sampling device for detecting the density of fracturing proppant, comprising a sampling barrel and a fixing plate, wherein the fixing plate is fixedly connected to the right side of the sampling barrel, and the inner and outer ends of the sampling barrel are connected with a sampling mechanism, wherein the sampling mechanism comprises a sampling unit and a sealing unit, wherein the sampling unit is arranged at the inner and outer ends of the sampling barrel, and the sealing unit is arranged on the left side of the sampling unit.

[0009] The sampling unit includes a threaded rod, a handle, a piston, a sampling tube, an extension tube and a connecting ring, the threaded rod is connected to the inside of a fixed plate, the handle is fixedly connected to the right end of the threaded rod, the piston is fixedly connected to the left end of the threaded rod, the sampling tube is fixedly connected to the middle position of the left end of the sampling cylinder, the extension tube is connected to the left end of the sampling tube, and the connecting ring is fixedly connected to the right end of the extension tube.

[0010] A further improvement is that a threaded hole is provided in the middle of the fixing plate, and the outer side of the threaded rod is threadedly connected to the inner side of the threaded hole, so that when the handle is turned to drive the threaded rod in the threaded hole to rotate, the threaded rod can move relative to the fixing plate.

[0011] A further improvement is that the outer side of the piston is slidably connected to the inner side of the sampling tube, so that when the threaded rod moves to drive the piston in the sampling tube to move, the fracturing proppant at the outer end can be sucked from the sampling tube into the sampling tube.

[0012] A further improvement is that the outer side of the connecting ring is provided with an outer thread, the inner side of the left end of the sampling tube and the extension tube is provided with an inner thread, and the outer side of the connecting ring is threadedly connected with the inner left end of the sampling tube and the extension tube. Thus, when the connecting ring at the right end of the extension tube is threadedly connected to the outer side of the left end of the sampling tube or the connecting ring is threadedly connected to the inner left end of the extension tube at the left end of the sampling tube, the overall length of the sampling device can be changed, so as to facilitate sampling of fracturing proppants at different depths.

[0013] A further improvement is that the sealing unit comprises a rotating block and a sealing plug, wherein the rotating block is connected to the left end of the extension tube, and the sealing plug is fixedly connected to the outer side of the right end of the rotating block.

[0014] A further improvement is that the outer side of the sealing plug is provided with an external thread, and the outer side of the sealing plug is threadedly connected to the inner left end of the extension tube. Therefore, after sampling is completed and the sampling device is taken out, the sealing plug at the right end of the rotating block is threadedly connected to the inner left end of the extension tube, and the left end of the extension tube can be sealed to prevent the fracturing proppant sampled into the sampling tube from falling.

[0015] A further improvement is that a sealing plate is fixedly connected to the outside of the sampling tube, and a rubber pad is fixedly connected to the left side of the sealing plate, so that after the sampling tube and the extension tube are inserted into the fracturing proppant, the rubber pad on the left side of the sealing plate contacts the surface of the fracturing proppant sample, so that the sampling device remains firm during the sampling process.

[0016] In summary, the present application discloses a vehicle-mounted sampling device for detecting the bulk density of fracturing proppants.

[0017] The technical solution can change the overall length of the sampling device by threading the connecting ring at the right end of the extension tube to the outer side of the left end of the sampling tube or threading the connecting ring to the inner left end of the extension tube at the left end of the sampling tube, so as to facilitate sampling of fracturing proppants at different depths.

[0018] Furthermore, after sampling is completed and the sampling device is taken out, the sealing plug at the right end of the rotating block is threadedly connected to the inner side of the left end of the extension tube, which can seal the left end of the extension tube to prevent the fracturing proppant sampled into the sampling tube from falling. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the sampling tube of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the extension tube of the utility model;

[0022] Figure 4 It is a structural schematic diagram of the sealing unit of the utility model.

[0023] In the figure: 1. sampling cylinder; 2. fixing plate; 301. threaded rod; 302. handle; 303. piston; 304. sampling tube; 305. extension tube; 306. connecting ring; 401. rotating block; 402. sealing plug; 5. sealing plate. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-Figure 4 , the utility model provides a technical solution:

[0026] Embodiment 1:

[0027] A sampling device for vehicle-mounted fracturing proppant density detection comprises a sampling barrel 1 and a fixing plate 2. The fixing plate 2 is fixedly connected to the right side of the sampling barrel 1. The inner and outer ends of the sampling barrel 1 are connected with a sampling mechanism. The sampling mechanism comprises a sampling unit and a sealing unit. The sampling unit is arranged at the inner and outer ends of the sampling barrel 1, and the sealing unit is arranged on the left side of the sampling unit.

[0028] The sampling unit includes a threaded rod 301, a handle 302, a piston 303, a sampling tube 304, an extension tube 305 and a connecting ring 306. The threaded rod 301 is connected to the inside of the fixed plate 2, and the handle 302 is fixedly connected to the right end of the threaded rod 301. A threaded hole is provided in the middle of the fixed plate 2, and the outer side of the threaded rod 301 is threadedly connected to the inner side of the threaded hole. Therefore, when the handle 302 is rotated to drive the threaded rod 301 in the threaded hole to rotate, the threaded rod 301 can move relative to the fixed plate 2.

[0029] The piston 303 is fixedly connected to the left end of the threaded rod 301, the sampling tube 304 is fixedly connected to the middle position of the left end of the sampling barrel 1, and the outer side of the piston 303 is slidably connected to the inner side of the sampling barrel 1. Therefore, when the threaded rod 301 moves to drive the piston 303 in the sampling barrel 1, the fracturing proppant at the outer end can be sucked into the sampling barrel 1 from the sampling tube 304.

[0030] The extension tube 305 is connected to the left end of the sampling tube 304, and the connecting ring 306 is fixedly connected to the right end of the extension tube 305. The outer side of the connecting ring 306 is provided with an external thread, and the inner sides of the left ends of the sampling tube 304 and the extension tube 305 are provided with an internal thread. The outer side of the connecting ring 306 is threadedly connected to the inner left ends of the sampling tube 304 and the extension tube 305. Therefore, when the connecting ring 306 at the right end of the extension tube 305 is threadedly connected to the outer side of the left end of the sampling tube 304 or the connecting ring 306 is threadedly connected to the inner left end of the extension tube 305 at the left end of the sampling tube 304, the overall length of the sampling device can be changed, so as to facilitate sampling of fracturing proppants at different depths.

[0031] Embodiment 2:

[0032] On the basis of the first embodiment: the sealing unit includes a rotating block 401 and a sealing plug 402, the rotating block 401 is connected to the left end of the extension tube 305, and the sealing plug 402 is fixedly connected to the outer side of the right end of the rotating block 401. The outer side of the sealing plug 402 is provided with an external thread, and the outer side of the sealing plug 402 is threadedly connected to the inner left end of the extension tube 305. Therefore, after the sampling is completed and the sampling device is taken out, the sealing plug 402 at the right end of the rotating block 401 is threadedly connected to the inner side of the left end of the extension tube 305, and the left end of the extension tube 305 can be closed to prevent the fracturing proppant sampled into the sampling tube 1 from falling.

[0033] Embodiment three:

[0034] On the basis of the first embodiment: the outer side of the sampling tube 304 is fixedly connected with a sealing plate 5, and the left side of the sealing plate 5 is fixedly connected with a rubber pad. Therefore, after the sampling tube 304 and the extension tube 305 are inserted into the fracturing proppant, the rubber pad on the left side of the sealing plate 5 contacts the surface of the fracturing proppant sample, so that the sampling device remains firm during the sampling process.

[0035] Working principle: When sampling the vehicle-mounted fracturing proppant, after inserting the extension tube 305 at the left end of the sampling tube 304 into the sampling position in the vehicle-mounted fracturing proppant, turn the handle 302 to drive the threaded rod 301 to rotate in the threaded hole and move right at the same time, drive the piston 303 to move right along the inner side of the sampling tube 1, and draw the vehicle-mounted fracturing proppant into the extension tube 305 and then into the sampling tube 1 through the sampling tube 304. After the sampling is completed, the extension tube 305 is pulled out, and the sealing plug 402 is threadedly connected to the inner side of the left end of the extension tube 305. Then, after moving the sampling tube 1 to the detection equipment, turn the rotating block 401 to remove the sealing plug 402, and then discharge the vehicle-mounted fracturing proppant in the sampling tube 1 for detection.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A vehicle-mounted sampling device for detecting the volume density of a fracturing proppant, comprising a sampling tube (1) and a fixing plate (2), wherein the fixing plate (2) is fixedly connected to the right side of the sampling tube (1), and is characterized in that: The inner and outer ends of the sampling tube (1) are connected to a sampling mechanism, the sampling mechanism comprising a sampling unit and a sealing unit, the sampling unit is arranged at the inner and outer ends of the sampling tube (1), and the sealing unit is arranged on the left side of the sampling unit; The sampling unit comprises a threaded rod (301), a handle (302), a piston (303), a sampling tube (304), an extension tube (305) and a connecting ring (306); the threaded rod (301) is connected to the inside of the fixing plate (2); the handle (302) is fixedly connected to the right end of the threaded rod (301); the piston (303) is fixedly connected to the left end of the threaded rod (301); the sampling tube (304) is fixedly connected to the middle position of the left end of the sampling cylinder (1); the extension tube (305) is connected to the left end of the sampling tube (304); and the connecting ring (306) is fixedly connected to the right end of the extension tube (305).

2. A vehicle-mounted sampling device for detecting volume density of fracturing proppant according to claim 1, characterized in that: A threaded hole is provided in the middle of the fixing plate (2), and the outer side of the threaded rod (301) is threadedly connected to the inner side of the threaded hole.

3. A vehicle-mounted sampling device for detecting volume density of fracturing proppant according to claim 1, characterized in that: The outer side of the piston (303) is slidably connected to the inner side of the sampling cylinder (1).

4. A vehicle-mounted sampling device for detecting volume density of fracturing proppant according to claim 1, characterized in that: The outer side of the connecting ring (306) is provided with an external thread, the inner sides of the left ends of the sampling tube (304) and the extension tube (305) are provided with an internal thread, and the outer side of the connecting ring (306) is threadedly connected to the inner left ends of the sampling tube (304) and the extension tube (305).

5. The vehicle-mounted sampling device for detecting the volume density of fracturing proppant according to claim 1, characterized in that: The sealing unit comprises a rotating block (401) and a sealing plug (402), wherein the rotating block (401) is connected to the left end of the extension tube (305), and the sealing plug (402) is fixedly connected to the outer side of the right end of the rotating block (401).

6. A vehicle-mounted sampling device for detecting volume density of fracturing proppant according to claim 5, characterized in that: The outer side of the sealing plug (402) is provided with an external thread, and the outer side of the sealing plug (402) is threadedly connected to the inner left end of the extension tube (305).

7. The vehicle-mounted sampling device for detecting the volume density of fracturing proppant according to claim 1, characterized in that: A sealing plate (5) is fixedly connected to the outer side of the sampling tube (304), and a rubber pad is fixedly connected to the left side of the sealing plate (5).

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