CN220285678U - Novel double-acting double-tube rock core tube - Google Patents
Novel double-acting double-tube rock core tube Download PDFInfo
- Publication number
- CN220285678U CN220285678U CN202321764365.2U CN202321764365U CN220285678U CN 220285678 U CN220285678 U CN 220285678U CN 202321764365 U CN202321764365 U CN 202321764365U CN 220285678 U CN220285678 U CN 220285678U
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- tube
- pipe
- double
- inner tube
- outer tube
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- 239000011435 rock Substances 0.000 title claims abstract description 11
- 239000000498 cooling water Substances 0.000 claims abstract description 12
- 238000001816 cooling Methods 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 26
- 238000005553 drilling Methods 0.000 abstract description 7
- 239000002689 soil Substances 0.000 abstract description 6
- 230000007547 defect Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
Landscapes
- Sampling And Sample Adjustment (AREA)
- Earth Drilling (AREA)
Abstract
The utility model discloses a novel double-acting double-pipe rock core pipe, which comprises an outer pipe, an inner pipe sleeved on the outer pipe, wherein one end of the inner pipe is connected with the inner wall of the outer pipe in a threaded manner, the other end of the inner pipe extends out of one end of the outer pipe, and a gap is arranged between the inner pipe and the outer pipe; the cooling mechanism is used for injecting cooling water into the gap, so that the inner tube is cooled. The inner tube is responsible for drilling the rock-soil core sample, the outer tube is used for reaming and cooling to the greatest extent, gaps are reserved between tube walls, the drill bit can be cooled through cooling water, the drill core can be cooled simultaneously, the core sample cannot be damaged due to high temperature, meanwhile, the inner tube is longer than the outer tube, cooling water cannot enter the inner tube, and the obtained core sample is ensured not to be disturbed.
Description
Technical Field
The utility model relates to the technical field of drilling, in particular to a novel double-acting double-tube rock core tube.
Background
The core barrel is a section of tubing connected to the upper portion of the drill bit during core drilling to contain and protect the core. The core barrel is used for accommodating the core during drilling, and simultaneously bears and transmits the weight on bit and torsion to drive the drill bit to work. In addition, in layers such as sand layers, residual soil, full weathering, strong weathering and the like, the core sample of the traditional single-tube rock core pipe has low coring rate, and the core sample is easily disturbed and destroyed, so that the requirements of investigation or detection are difficult to meet.
Therefore, the existing core barrel is in a single-tube form, and has the defects of low coring rate, low coring integrity, low loose stratum core sample forming rate and the like.
Disclosure of Invention
In view of the defects in the prior art, the utility model aims to provide a novel double-acting double-tube rock core tube, which not only has higher core sample coring rate, but also can adopt undisturbed samples.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
the novel double-acting double-tube rock core tube comprises an outer tube, an inner tube sleeved on the outer tube, one end of the inner tube is connected with the inner wall of the outer tube in a threaded manner, the other end of the inner tube extends out of one end of the outer tube, and a gap is arranged between the inner tube and the outer tube; the cooling mechanism is used for injecting cooling water into the gap, so that the inner tube is cooled.
The cooling mechanism comprises a water inlet and a water outlet pipe, one end of the water outlet pipe is connected with the water inlet, and the other end of the water outlet pipe is arranged in the outer pipe; the water inlet is arranged on the surface of the outer tube.
The inner tube is provided with an inner cavity, and the inner tube is provided with an inner cavity and an outer tube.
The gap was 8cm.
The inner tube length was 2cm longer than the outer tube length.
The utility model has the beneficial effects that:
1. the inner tube is responsible for boring the rock-soil core sample, the outer tube is expanded and cooled to the greatest extent, gaps are reserved between tube walls, the drill bit can be cooled through cooling water, the drill core is cooled simultaneously, the core sample cannot be damaged due to high temperature, meanwhile, the inner tube is longer than the outer tube, cooling water cannot enter the inner tube, and the obtained core sample is guaranteed not to be disturbed.
2. The inner pipe is provided with an exhaust pipe, so that gas in the hole can be discharged during drilling, and the core sample can be ensured to smoothly enter the core barrel; during extraction, the vacuum adsorption effect is achieved, so that the rock and soil can be easily and completely taken out.
3. Clear water can be injected through the exhaust hole, the core sample is ejected out by utilizing water pressure, and the integrity of the core sample is greatly improved.
Drawings
Fig. 1 is an exploded view of the structure of the present utility model.
Detailed Description
The present utility model will be further described with reference to the accompanying drawings, and it should be noted that, while the present embodiment provides a detailed implementation and a specific operation process on the premise of the present technical solution, the protection scope of the present utility model is not limited to the present embodiment.
As shown in fig. 1, the utility model is a novel double-acting double-tube rock core tube, comprising an outer tube 1, an inner tube 2 sleeved on the outer tube 1, wherein one end of the inner tube 2 is connected with the inner wall of the outer tube 1 in a threaded manner, the other end of the inner tube 2 extends out of one end of the outer tube 1, and a gap is arranged between the inner tube 2 and the outer tube 1; the cooling mechanism is used for injecting cooling water into the gap, so that the inner tube is cooled.
Further, as shown in fig. 1, the cooling mechanism of the present utility model includes a water inlet 6 and a water outlet 5, one end of the water outlet 5 is connected to the water inlet 6, and the other end of the water outlet 5 is located in the outer tube 1. When water is injected, the cooling water enters the outer tube 1 through the water outlet pipe inlet 5 and flows through the gap; the water inlet 6 is arranged on the surface of the outer tube 1.
Further, as shown in fig. 1, the present utility model further comprises an exhaust pipe 3, wherein one end of the exhaust pipe 3 is connected to the inner cavity of the inner pipe 2, and the other end 4 is disposed on the surface of the outer pipe 1.
Further, the gap of the present utility model is 8cm.
Further, the length of the inner tube is 2cm longer than the length of the outer tube.
It should be noted that, as shown in fig. 1, a screw thread 7 and an outer tube screw thread 9 are also provided.
Examples
In one embodiment, the length of the inner tube of the present utility model is 2cm longer than the length of the outer tube, the inner tube diameter is 73cm, the outer tube diameter is 91cm, and the wall spacing (gap) is 8cm. The inner tube and the outer tube are both made of thin-edge alloy drill bits, the inner tube is responsible for drilling a rock-soil core sample, the outer tube is reamed and cooled to the greatest extent, cooling water is arranged between the tube walls to cool the drill bits, so that the drill cores are cooled simultaneously, and the core sample cannot be damaged due to high temperature. Meanwhile, because the inner tube is longer than the outer tube, the cooling water cannot enter the inner tube, and the obtained core sample is ensured not to be disturbed.
The inner pipe is provided with the exhaust pipe, gas in the hole can be discharged during drilling, the core sample can be ensured to smoothly enter the core barrel, the vacuum adsorption function is realized during extraction, the rock soil can be easily and completely taken out, clear water can be injected through the exhaust hole, the core sample is ejected out by utilizing water pressure, and the integrity of the core sample is greatly improved.
Various other corresponding changes and modifications will occur to those skilled in the art from the foregoing description and the accompanying drawings, and all such changes and modifications are intended to be included within the scope of the present utility model as defined in the appended claims.
Claims (5)
1. The novel double-acting double-tube rock core tube is characterized by comprising an outer tube and an inner tube sleeved on the outer tube, wherein one end of the inner tube is connected with the inner wall of the outer tube in a threaded manner, the other end of the inner tube extends out of one end of the outer tube, and a gap is arranged between the inner tube and the outer tube; the cooling mechanism is used for injecting cooling water into the gap, so that the inner tube is cooled.
2. The novel double-acting double-pipe core barrel according to claim 1, wherein the cooling mechanism comprises a water inlet and a water outlet pipe, one end of the water outlet pipe is connected with the water inlet, the other end of the water outlet pipe is arranged in the outer pipe, and when water is injected, the cooling water enters the outer pipe through the water outlet pipe and flows through the gap; the water inlet is arranged on the surface of the outer tube.
3. The novel double-acting double-pipe core barrel according to claim 1, further comprising an exhaust pipe, wherein one end of the exhaust pipe is connected with the inner cavity of the inner pipe, and the other end of the exhaust pipe is arranged on the surface of the outer pipe.
4. The novel double-acting double-tube core barrel of claim 1, wherein the gap is 8cm.
5. The novel double-acting double-barreled core barrel of claim 1, wherein the inner tube length is 2cm longer than the outer tube length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321764365.2U CN220285678U (en) | 2023-07-05 | 2023-07-05 | Novel double-acting double-tube rock core tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321764365.2U CN220285678U (en) | 2023-07-05 | 2023-07-05 | Novel double-acting double-tube rock core tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220285678U true CN220285678U (en) | 2024-01-02 |
Family
ID=89333046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321764365.2U Active CN220285678U (en) | 2023-07-05 | 2023-07-05 | Novel double-acting double-tube rock core tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220285678U (en) |
-
2023
- 2023-07-05 CN CN202321764365.2U patent/CN220285678U/en active Active
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