Device for drilling water injection test

Abstract

The device comprises a mounting plate, a round opening is formed in the mounting plate, a test tube is arranged in the round opening of the mounting plate in a sleeved mode, a fastening assembly connected with the test tube is arranged on the outer wall of the mounting plate, a first floating block is arranged at the bottom end of the inner side of the test tube, and two first supporting columns are fixedly arranged on the first floating block; the top ends of the two first supporting columns are fixedly provided with the same first indicating plate, the bottom end of the inner side of the test tube is provided with a second floating block, the second floating block is fixedly provided with a second supporting column, and the top end of the second supporting column is fixedly provided with a second indicating plate. When the water level in the drill hole rises, the first floating block and the second floating block also rise along with the rising of the water level, the rising condition of the water level in the drill hole can be read by comparing the position of the scale mark through the first indicator board, and the rising condition of the water level in the drill hole can be read by comparing the position of the scale mark through the second indicator board. Therefore, the water level drop condition in the drill hole can be read and the practicability is high.

Description

Technical Field

[0001] The present application belongs to the technical field of drilling water injection, and in particular relates to a device for drilling water injection testing. Background Art

[0002] A water injection test involves injecting water into a borehole or test pit and measuring the permeability of the target layer by regularly measuring the injection volume, time, water level, and other related parameters. This test can be used for both loam, silt, sand, and gravel layers with relatively high permeability below the groundwater level, as well as clay layers and rock formations with relatively low permeability.

[0003] The existing patent with authorization announcement number CN216646198U discloses a device for drilling water injection test. This utility model can quickly, continuously and accurately read the water level in the borehole through the scale line without lifting the test rod out of the borehole, making the data obtained more accurate, and the unused floating plate can be clamped by a splint, making the device more convenient to carry.

[0004] In the above-mentioned related technologies, the test rod is first placed in the drill hole, and the bottom surface of the fixed plate is against the ground. However, the length of the test rod is fixed, so the depth of insertion into the drill hole is fixed. When the drilling depth is different, the floating plate cannot extend into the bottom of the drill hole, thereby affecting the test results. Utility Model Content

[0005] In order to facilitate the adjustment of the length of the test rod so that the float plate extends into the bottom of the drill hole, the present application provides a device for a drill hole water injection test.

[0006] In order to achieve the above-mentioned purpose, the present application adopts the following technical solutions: a device for drilling water injection testing, comprising a mounting plate, a circular opening being opened on the mounting plate, a test tube being sleeved in the circular opening on the mounting plate, a fastening assembly connected to the test tube being provided on the outer wall of the mounting plate, a first floating block being provided at the bottom end of the inner side of the test tube, two first pillars being fixedly provided on the first floating block, the same first indicator plate being fixedly provided at the top end of the two first pillars, a second floating block being provided at the bottom end of the inner side of the test tube, a second pillar being fixedly provided on the second floating block, a second indicator plate being fixedly provided at the top end of the second pillar, a transparent window being provided on the side wall of the test tube, and scale lines being provided on the surface of the transparent window.

[0007] By adopting the above technical solution, when the water level in the borehole rises, the first float block and the second float block will also rise with the rising water level. By comparing the position of the scale line on the first indicator plate, the rising water level in the borehole can be read. When the water level in the borehole drops, the second float block will move down with the water level. At this time, by comparing the position of the scale line on the second indicator plate, the dropping water level in the borehole can be read, which is highly practical.

[0008] Preferably, the fastening assembly includes a bolt and a screw hole, the bolt is set through the outer wall of the mounting plate, there are multiple screw holes, and the multiple screw holes are evenly arranged on the outer wall of the test tube, and the bolt is adapted to the multiple screw holes.

[0009] By adopting the above technical solution, the mounting plate is moved downward to adjust its position, and then a bolt is inserted into a screw hole to fix it, so that the test tube can be placed stably.

[0010] Preferably, a through hole is formed on the first floating block, and the second floating block slides through the through hole.

[0011] By adopting the above technical solution, the second floating block can be easily moved downward.

[0012] Preferably, limit blocks are provided on both sides of the first floating block, and the side wall of the test tube is provided with limit grooves adapted to the two limit blocks.

[0013] By adopting the above technical solution, the first floating block is limited by the limiting block and the limiting groove.

[0014] Preferably, handles are fixedly provided on both side walls of the mounting plate, and the two handles are symmetrically arranged.

[0015] By adopting the above technical solution, the device can be moved conveniently by holding the handle.

[0016] Preferably, a pin is provided through the outer wall of the test tube, and both the first floating block and the second floating block are provided with a socket adapted to the pin.

[0017] By adopting the above technical solution, the first floating block and the second floating block are fixed by the latch.

[0018] Preferably, the first pillar and the second pillar are both light rods, and the first indicator plate and the second indicator plate are both adapted to scale lines.

[0019] By adopting the above technical solution, readings are performed by referring to the scale lines on the first indicator plate and the second indicator plate.

[0020] Compared with the prior art, the present invention has the following advantages:

[0021] 1. Insert the bottom end of the test tube into the drilled hole so that the bottom surface of the mounting plate contacts the ground. Move the mounting plate downward to adjust its position. Insert a bolt into a screw hole to secure the test tube.

[0022] 2. When the water level in the borehole rises, the first float block and the second float block will also rise with the rising water level. By comparing the position of the scale line on the first indicator plate, the rising water level in the borehole can be read. The water level in the borehole drops, and the first float block and the second float block will move down. When the first float block moves to the lowest point, if the water level in the borehole continues to drop, the second float block will move down with the water level. At this time, by comparing the position of the scale line on the second indicator plate, the falling water level in the borehole can be read, which is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of the overall structure of this application;

[0024] Figure 2 This is a schematic diagram of the structure of the front cross-section of this application;

[0025] Figure 3 This is a schematic diagram of the structure of the side section of this application.

[0026] In the figure: 1. Mounting plate; 2. Test tube; 3. First float; 4. First pillar; 5. First indicator plate; 6. Second float; 7. Second pillar; 8. Second indicator plate; 9. Transparent window; 10. Scale line; 11. Bolt; 12. Screw hole; 13. Limit block; 14. Limit groove; 15. Handle; 16. Latch. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0028] Reference Figure 1-3 A device for drilling and water injection testing includes a mounting plate 1, a circular opening is opened on the mounting plate 1, a test tube 2 is sleeved in the circular opening of the mounting plate 1, a fastening assembly connected to the test tube 2 is provided on the outer wall of the mounting plate 1, and the fastening assembly includes a bolt 11 and a screw hole 12, the bolt 11 is arranged through the outer wall of the mounting plate 1, and a plurality of screw holes 12 are provided, and the plurality of screw holes 12 are evenly arranged on the outer wall of the test tube 2, and the bolt 11 is adapted to the plurality of screw holes 12.

[0029] Specifically, the bottom end of the test tube 2 is inserted into the drilled hole so that the bottom surface of the mounting plate 1 is against the ground. The mounting plate 1 is moved downward to adjust its position, and then a bolt 11 is inserted into a screw hole 12 to fix it so that the test tube 2 can be placed stably.

[0030] Furthermore, a first floating block 3 is provided at the bottom inner end of the test tube 2, two first pillars 4 are fixedly provided on the first floating block 3, and the same first indicator plate 5 is fixedly provided on the top of the two first pillars 4. A second floating block 6 is provided at the bottom inner end of the test tube 2, a second pillar 7 is fixedly provided on the second floating block 6, and a second indicator plate 8 is fixedly provided on the top of the second pillar 7. Both the first pillar 4 and the second pillar 7 are light rods, which reduce the mass of the first pillar 4 and the second pillar 7. A transparent window 9 is provided on the side wall of the test tube 2, and a scale line 10 is provided on the surface of the transparent window 9. The first indicator plate 5 and the second indicator plate 8 are both adapted to the scale line 10.

[0031] Specifically, water is injected into the borehole through the test tube 2. When the water level in the borehole rises, the first float 3 and the second float 6 will also rise with the rising water level. The first float 3 drives the two first pillars 4 and the first indicator plate 5 to rise. By comparing the position of the scale line 10 on the first indicator plate 5, the rising water level in the borehole can be read. After a period of time, the water in the borehole will slowly penetrate into the rock formation, the water level in the borehole will drop, and drive the first float 3 and the second float 6 to move downward. When the first float 3 moves to the lowest point, if the water level in the borehole continues to drop, the second float 6 will move downward with the water level. At this time, the water level drop in the borehole can be read by comparing the position of the scale line 10 on the second indicator plate 8.

[0032] A through hole is provided on the first floating block 3 , and the second floating block 6 slides through the through hole, so as to facilitate the downward movement of the second floating block 6 .

[0033] In addition, limiting blocks 13 are provided on both sides of the first floating block 3 , and limiting grooves 14 adapted to the two limiting blocks 13 are opened on the side wall of the test tube 2 , so that the first floating block 3 is limited by the limiting blocks 13 and the limiting grooves 14 .

[0034] In addition, handles 15 are fixedly provided on both side walls of the mounting plate 1. The two handles 15 are symmetrically arranged, making it convenient to move the device by holding the handles 15. A latch 16 is provided through the outer wall of the test tube 2. The first and second float blocks 3 and 6 are each provided with a socket compatible with the latch 16, and the first and second float blocks 3 and 6 are fixed by the latch 16.

[0035] The operating principle of the present application is described as follows: the bottom end of the test tube 2 is inserted into the borehole so that the bottom surface of the mounting plate 1 is against the ground. The mounting plate 1 is moved downward to adjust its position, and then a bolt 11 is inserted into a screw hole 12 to fix it so that the test tube 2 can be placed stably. Water is injected into the borehole through the test tube 2. When the water level in the borehole rises, the first float 3 and the second float 6 will also rise with the rising water level. The first float 3 drives the two first pillars 4 and the first indicator plate 5 to rise. The rising water level in the borehole can be read by comparing the position of the scale line 10 on the first indicator plate 5. After a period of time, the water in the borehole will slowly penetrate into the rock formation, and the water level in the borehole will drop, driving the first float 3 and the second float 6 downward. When the first float 3 moves to the lowest point, if the water level in the borehole continues to drop, the second float 6 will move downward with the water level. At this time, the falling water level in the borehole can be read by comparing the position of the scale line 10 on the second indicator plate 8.

[0036] The above is only a preferred specific implementation method of the present application, but the scope of protection of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and application concept of the present application within the technical scope disclosed in the present application, and they should be covered by the scope of protection of the present application.

Claims

1. A device for drilling water injection testing, comprising a mounting plate (1), characterized in that: The mounting plate (1) is provided with a circular opening, and a test tube (2) is sleeved on the mounting plate (1) in the circular opening. A fastening assembly connected to the test tube (2) is provided on the outer wall of the mounting plate (1). A first floating block (3) is provided at the bottom inner end of the test tube (2). Two first pillars (4) are fixedly provided on the first floating block (3). The top ends of the two first pillars (4) are fixedly provided with the same first indicator plate (5). A second floating block (6) is provided at the bottom inner end of the test tube (2). A second pillar (7) is fixedly provided on the second floating block (6). A second indicator plate (8) is fixedly provided on the top end of the second pillar (7). A transparent window (9) is provided on the side wall of the test tube (2), and a scale line (10) is provided on the surface of the transparent window (9).

2. A drilling water injection test device according to claim 1, characterized in that: The fastening assembly comprises a bolt (11) and a screw hole (12), wherein the bolt (11) is arranged through the outer wall of the mounting plate (1), a plurality of screw holes (12) are provided, and the plurality of screw holes (12) are evenly arranged on the outer wall of the test tube (2), and the bolt (11) is adapted to the plurality of screw holes (12).

3. A drilling water injection test device according to claim 1, characterized in that: A through hole is provided on the first floating block (3), and the second floating block (6) slides through the through hole.

4. The drilling water injection test device according to claim 1, characterized in that: Limit blocks (13) are provided on both sides of the first floating block (3), and a limit groove (14) adapted to the two limit blocks (13) is provided on the side wall of the test tube (2).

5. The drilling water injection test device according to claim 1, characterized in that: Handles (15) are fixedly provided on both side walls of the mounting plate (1), and the two handles (15) are symmetrically arranged.

6. The drilling water injection test device according to claim 1, characterized in that: A latch (16) is provided through the outer wall of the test tube (2), and a socket adapted to the latch (16) is provided on both the first floating block (3) and the second floating block (6).

7. The drilling water injection test device according to claim 1, characterized in that: The first pillar (4) and the second pillar (7) are both light rods, and the first indicator plate (5) and the second indicator plate (8) are both adapted to the scale line (10).

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