A sample separation device for pretreatment of quartz sand fracturing proppant for testing

Abstract

This utility model relates to a sample distribution device for pretreatment of quartz sand fracturing proppant testing. It includes a housing with a sample inlet at the top and multiple slots at the bottom. A rotating sample distribution roller is positioned below the slots, and the roller has corresponding sample grooves. These grooves are arranged in a linear array to form a groove group. A roller sleeve is fixedly connected to the periphery of the roller, and multiple downward-sloping sample outlet tubes are fixedly connected to both sides of the sleeve. The outlet tubes on both sides of the sleeve alternately match adjacent sample grooves in the groove group. The sample distribution device for pretreatment of quartz sand fracturing proppant testing described in this application utilizes the rotating sample distribution roller to carry away an equal amount of sample at the slot position of the inlet, and discharges the sample from the outlet tubes on the roller sleeve during rotation. This allows for the random division of the sample into multiple identical portions at once, solving the problem of insufficient sample quantity requiring multiple divisions, which leads to low accuracy and poor repeatability in quartz sand fracturing proppant testing results.

Description

Technical Field

[0001] This utility model relates to a sample separation device for pretreatment before testing, and more particularly to a sample separation device for pretreatment before testing quartz sand fracturing proppant. Background Technology

[0002] Increasing oil and gas production has become a focal point of technological breakthroughs in various countries. Hydraulic fracturing, a method for exploiting unconventional shale oil and gas, can effectively increase well production. Hydraulic fracturing typically uses proppant as a key construction material, which is crucial for the successful implementation of the fracturing technology. To ensure that the quality of the quartz sand fracturing proppant meets extraction requirements, it needs to be tested. Before testing, pretreatment by sample division is necessary; accurate test results depend on uniform sample distribution.

[0003] Existing samplers and devices suffer from insufficient sample quantity, requiring multiple sample divisions, resulting in low accuracy and poor repeatability of quartz sand fracturing proppant test results. Utility Model Content

[0004] The purpose of this invention is to provide a sample distribution device for pretreatment of quartz sand fracturing proppant for testing, which solves the problem that existing sample distribution devices for pretreatment of quartz sand fracturing proppant for testing have insufficient sample quantity and require multiple sample distributions, resulting in low accuracy and poor repeatability of quartz sand fracturing proppant test results.

[0005] To address the aforementioned issues, this invention provides a sample distribution device for pretreatment of quartz sand fracturing proppant, comprising a housing with a sample inlet at the top and multiple slots at the bottom. A rotating sample distribution roller is positioned below the slots, and the sample distribution roller has corresponding sample grooves on it. The sample grooves are arranged in a linear array on the sample distribution roller to form a groove group. A roller sleeve is fixedly connected to the periphery of the sample distribution roller, and multiple downwardly inclined sample outlet tubes are fixedly connected to both sides of the roller sleeve. The sample outlet tubes on both sides of the roller sleeve alternately match the adjacent sample distribution grooves of the groove group.

[0006] The sample separation device for pretreatment of quartz sand fracturing proppant testing provided by this utility model also has the following technical features: Furthermore, the cross-section of the sampling slot is fan-shaped.

[0007] Furthermore, the sample dividing roller is provided with multiple groove groups, which are arranged in a circumferential array.

[0008] Furthermore, the other end of the sample tube has a sample outlet on the box.

[0009] Furthermore, a mandrel is fixedly connected to both ends of the sample dividing roller, the mandrel is rotatably connected to the housing, a motor is fixedly connected to the housing, and the drive shaft of the motor is connected to the mandrel.

[0010] Furthermore, a sample receiving cup is placed outside the box at the position corresponding to the sample outlet.

[0011] This invention has the following advantages: by using a rotating sample dividing roller to carry away an equal amount of sample at the sample inlet slot, and unloading the sample from the sample outlet tube on the roller sleeve during the rotation, the sample can be randomly divided into multiple equal portions at once, which solves the problem of low accuracy and poor repeatability of quartz sand fracturing proppant test results caused by insufficient sample quantity requiring multiple sample divisions. Attached Figure Description

[0012] Fig. 1 This is a right-side cross-sectional isometric schematic diagram of the sample-dividing device for pretreatment of quartz sand fracturing proppant in an embodiment of this utility model. Fig. 2 This is a right-side axonometric view of the sample-dividing device for pretreatment of quartz sand fracturing proppant in an embodiment of this utility model. Fig. 3 This is a front cross-sectional view of the sample-dividing device for pretreatment of quartz sand fracturing proppant in an embodiment of this utility model.

[0013] (1-Box body, 2-Sampling inlet, 3-Grid groove, 4-Sampling roller, 5-Sampling groove, 6-Roller sleeve, 7-Sampling tube, 8-Sampling outlet, 9-Mandrel, 10-Motor, 11-Sample cup) Detailed Implementation

[0014] The present invention will be described in detail below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0015] like Figs. 1 to 3 In the embodiment of the quartz sand fracturing proppant testing pretreatment sampling device of the present invention shown, the quartz sand fracturing proppant testing pretreatment sampling device includes a box body 1, a sample inlet 2 at the top of the box body 1, a plurality of grid grooves 3 at the bottom of the sample inlet 2, a rotating sampling roller 4 under the grid grooves 3, and sampling grooves 5 corresponding to the grid grooves 3 on the sampling roller 4. The sampling grooves 5 are arranged in a linear array on the sampling roller 4 to form a groove group (not marked in the figure). A roller sleeve 6 is fixedly connected to the periphery of the sampling roller 4, and a plurality of downwardly inclined sample outlet tubes 7 are fixedly connected to both sides of the roller sleeve 6. The sample outlet tubes 7 on both sides of the roller sleeve 6 are alternately adapted to the adjacent sampling grooves 5 of the groove group.

[0016] Specifically, the sample to be tested is placed into the inlet 2, and the top of the sample is scraped flat. The sample enters the grid 3 from the inlet 2 and flows into the dividing groove 5 on the dividing roller 4. The dividing roller 4 is rotated. As the dividing roller 4 rotates, the dividing groove 5 alternately connects with the outlet pipe 7 on the roller sleeve 6, and the sample in the dividing groove 5 is discharged. With continuous rotation, the sample to be tested is finally divided. The rotating dividing roller 4 takes away an equal amount of sample at the grid 3 position of the inlet 2, and discharges the sample from the outlet pipe 7 on the roller sleeve 6 during the rotation. The sample can be randomly divided into multiple equal parts at one time, which solves the problem of low accuracy and poor repeatability of quartz sand fracturing proppant test results caused by insufficient sample quantity requiring multiple sample divisions.

[0017] In one embodiment of this application, preferably, the cross-section of the sample dividing groove 5 is fan-shaped, which facilitates the flow of samples from the grid groove 3 into the sample dividing groove 5, and at the same time facilitates the unloading of samples.

[0018] In one embodiment of this application, preferably, the sample dividing roller 4 is provided with multiple groove groups, which are arranged in a circumferential array to improve the sample dividing speed.

[0019] In one embodiment of this application, preferably, the other end of the sample outlet tube 7 is provided with a sample outlet 8 on the housing 1 for discharging the sample from the sample outlet tube 7. The sample outlet 8 is located on both sides of the housing 1, communicates with the sample outlet tube 7, and alternately corresponds to the sample distribution slots 5 on the slot group.

[0020] In one embodiment of this application, preferably, the two ends of the sample dividing roller 4 are fixedly connected to a spindle 9, the spindle 9 is rotatably connected to the housing 1, and a motor 10 is fixedly connected to the housing 1. The drive shaft of the motor 10 is connected to the spindle 9 and is used to drive the sample dividing roller 4 to rotate.

[0021] In one embodiment of this application, preferably, a sample receiving cup 11 is placed outside the box 1 at the position corresponding to the sample outlet 8, for independently receiving the divided samples.

[0022] In summary, the sample-splitting device for pretreatment of quartz sand fracturing proppant in the above embodiments of this utility model specifically involves placing the sample to be tested into the inlet 2 and leveling the top of the sample. The sample enters the grid 3 from the inlet 2 and flows into the sample-splitting groove 5 on the sample-splitting roller 4. The motor 10 is started to drive the sample-splitting roller 4 to rotate. As the sample-splitting roller 4 rotates, the sample-splitting groove 5 alternately connects with the sample outlet pipe 7 on the roller sleeve 6, and the sample in the sample-splitting groove 5 is discharged and flows into the sample receiving cup 11 from the sample outlet 8. With continuous rotation, the sample to be tested is finally divided. The rotating sample-splitting roller 4 carries away an equal amount of sample at the grid 3 position of the inlet 2 and discharges the sample from the sample outlet pipe 7 on the roller sleeve 6 during the rotation. The sample can be randomly divided into multiple identical portions at once, which solves the problem of low accuracy and poor repeatability of quartz sand fracturing proppant test results caused by insufficient sample quantity requiring multiple samplings.

[0023] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A sample separation device for pretreatment of quartz sand fracturing proppant for testing, characterized in that, The device includes a housing, with a sample inlet at the top and multiple slots at the bottom. A rotating sample dispensing roller is located below the slots, and the sample dispensing roller has dispensing grooves corresponding to the slots. The dispensing grooves are arranged in a linear array on the sample dispensing roller to form a groove group. A roller sleeve is fixedly connected to the periphery of the sample dispensing roller, and multiple downwardly inclined sample outlet tubes are fixedly connected to both sides of the roller sleeve. The sample outlet tubes on both sides of the roller sleeve alternately match the adjacent dispensing grooves of the groove group.

2. The sample separation device for pretreatment of quartz sand fracturing proppant testing according to claim 1, characterized in that: The cross-section of the sampling slot is fan-shaped.

3. The sample separation device for pretreatment of quartz sand fracturing proppant as described in claim 2, characterized in that: The sample dividing roller is provided with multiple groove groups, which are arranged in a circumferential array.

4. The sample separation device for pretreatment of quartz sand fracturing proppant testing according to claim 3, characterized in that: The other end of the sample tube is provided with a sample outlet on the box body.

5. The sample separation device for pretreatment of quartz sand fracturing proppant as described in claim 4, characterized in that: The two ends of the sample dividing roller are fixedly connected to a spindle, the spindle is rotatably connected to the housing, a motor is fixedly connected to the housing, and the drive shaft of the motor is connected to the spindle.

6. The sample separation device for pretreatment of quartz sand fracturing proppant as described in claim 5, characterized in that: A sample receiving cup is placed on the outside of the box at the position corresponding to the sample outlet.

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