CN209780813U - Coring tool - Google Patents
Coring tool Download PDFInfo
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- CN209780813U CN209780813U CN201920276876.7U CN201920276876U CN209780813U CN 209780813 U CN209780813 U CN 209780813U CN 201920276876 U CN201920276876 U CN 201920276876U CN 209780813 U CN209780813 U CN 209780813U
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- coring
- power motor
- assembly
- subassembly
- shaft assembly
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Abstract
The utility model discloses a coring tool, its coring work that is used for the probing field, coring tool includes from down upwards loop through threaded connection's coring bit, transmission shaft assembly, universal shaft assembly, power motor subassembly and sealing device, coring bit, transmission shaft assembly, universal shaft assembly and power motor subassembly's central through-hole connects gradually and forms the hole device, sealing device sets up the inside at power motor subassembly to be located the top of hole device, sealing device is used for sealing or opening the hole device. The utility model discloses a coring tool can provide extra power and moment of torsion through the planetary motion of power motor subassembly, can reach and accelerate to accomplish the purpose of coring earlier stage work.
Description
Technical Field
The utility model relates to an oil and gas probing field especially relates to a be applied to oil and gas and bore coring tool of core work in the field.
Background
With the increasing demand of petroleum and natural gas, how to analyze complex strata to determine whether a hydrocarbon reservoir exists or not can quickly and accurately reach the required strata by what way, extract stratum samples and analyze, and the understanding of the real face of the hydrocarbon reservoir is particularly important. With the increasing demand and the increasing of drilling tasks, most coring tools adopted in the market at present have low rotating speed, are driven to integrally drill by the ground, have low efficiency, seriously affect the drilling speed and the exploration efficiency and have higher cost.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a coring tool, it can accelerate the probing process and get the core facility.
In order to achieve the above object, the utility model provides a coring tool, its coring work that is used for the probing field, coring tool includes from down up loops through threaded connection's coring bit, the transmission shaft subassembly, the universal shaft subassembly, power motor subassembly and sealing device, coring bit, the transmission shaft subassembly, the central through-hole of universal shaft subassembly and power motor subassembly connects gradually and forms the hole device, sealing device sets up the inside at the power motor subassembly to be located the top of hole device, sealing device is used for sealing or opening the hole device.
In a preferred embodiment, the sealing device is in a closed state during operation, water or slurry with pressure entering the inner hole device from the central through hole of the coring bit promotes the planetary motion of the power motor assembly, and the planetary motion of the power motor assembly can provide power for the coring bit through the universal shaft assembly and the transmission shaft assembly and drive the coring bit to rotate in an accelerated mode.
In a preferred embodiment, the sealing device is in an open state when not in operation, the inner hole device is in an unblocked state, and coring work of the coring device entering or exiting the inner hole device is guaranteed.
In a preferred embodiment, the coring tool further comprises a centering assembly disposed at an end remote from the threaded connection of the power motor assembly to the universal shaft assembly, the centering assembly configured to provide clearance for the internal bore device and transmission of power.
Compared with the prior art, the utility model discloses a coring tool has following beneficial effect: the power and the torque are provided through the planetary motion in the motor power assembly and are transmitted to the coring bit through the universal shaft assembly and the transmission shaft assembly, so that the drilling efficiency in the early stage of coring can be greatly accelerated; meanwhile, the centering assembly of the power motor assembly is connected with the transmission shaft assembly below the centering assembly, so that the effective space in the whole body is ensured, and the lowering and the recovery of the coring device are ensured; through inside sealing device, it is sealed when reaching the drilling, guarantees drilling speed and efficiency, opens when getting the core, guarantees putting down smoothly and retrieving of coring device.
Drawings
Fig. 1 is a schematic structural view of a coring tool according to an embodiment of the present invention.
Description of the main reference numerals:
11-core drill bit; 12-a driveshaft assembly; 13-a cardan shaft assembly; 14-a power motor assembly; 15-a righting assembly; 16-sealing means.
Detailed Description
The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited by the following detailed description.
Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.
As shown in fig. 1, fig. 1 is a schematic structural view of a coring tool according to an embodiment of the present invention. According to the utility model discloses preferred embodiment's a coring tool, its coring work that is used for the drilling field, this coring tool includes: coring bit 11, transmission shaft assembly 12, universal shaft assembly 13, power motor assembly 14 and the inside sealing device 16 of universal shaft assembly and power motor assembly, coring bit 11 passes through the screw thread to be connected with transmission shaft assembly 12, and the universal shaft assembly 13 is passed through threaded connection to the transmission shaft assembly 12 other end, and universal shaft assembly 13 passes through threaded connection with power motor assembly 14, and the inside threaded connection sealing device 16 that passes through of power motor. The center through holes of the coring bit 11, the transmission shaft assembly 12, the universal shaft assembly 13 and the power motor assembly 14 are sequentially connected to form an inner hole device, the inner hole device can ensure the effective space of the internal sealing device 16 and the coring device, and the successful coring process is ensured.
In some embodiments, the drilling fluid (water or mud, etc.) from the rig pump enters the drill string system (inner bore device) by pressing, and then the rotor inside the power motor assembly 14 is pushed by the power motor assembly 14 to perform planetary motion around the housing, converted into power and torque, and transmitted to the universal shaft assembly 13, and then transmitted to the coring bit 11 through the transmission shaft assembly 12, so that the drilling speed of the coring bit 11 can be increased, and the purpose of reaching a target layer in the early stage of coring can be accelerated. In the drilling process of the whole tool, power is provided for the universal shaft assembly 13 through the planetary motion of the power motor assembly 14 and is transmitted to the coring bit 11 through the transmission shaft assembly 12, so that the high efficiency of the coring target layer is ensured; inside universal shaft subassembly 13, there is sealing device 16 power motor subassembly 14 top, guarantees to open when getting into the sealing of in-process, when getting the core, and coring device reaches the target layer, accomplishes to get the core, gets back to sealing device smoothly, guarantees to get the accuracy and the fidelity of core sample.
In some embodiments, one end of the power motor assembly 14 is in threaded connection with the universal shaft assembly 13, and the other end is provided with the centering assembly 15 for centering, so that the power and torque requirements during drilling are guaranteed, the space and stability of the inner hole device during coring are guaranteed, and the accuracy and the fidelity of the coring sample are guaranteed.
To sum up, the utility model discloses a coring tool has following advantage: the power and the torque are provided through the planetary motion in the motor power assembly and are transmitted to the coring bit through the universal shaft assembly and the transmission shaft assembly, so that the drilling efficiency in the early stage of coring can be greatly accelerated; meanwhile, the centering assembly of the power motor assembly is connected with the universal shaft assembly below the centering assembly, so that the effective space in the whole body is ensured, and the lowering and the recovery of the coring device are ensured; through inside sealing device, it is sealed when reaching the drilling, guarantees drilling speed and efficiency, opens when getting the core, guarantees putting down smoothly and retrieving of coring device.
The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.
Claims (4)
1. The utility model provides a coring tool, its core work that is used for the probing field, a serial communication port, coring tool includes from down up to loop through threaded connection's coring bit, transmission shaft subassembly, universal shaft subassembly, power motor subassembly and sealing device, coring bit the transmission shaft subassembly the universal shaft subassembly and power motor subassembly's central through-hole connects gradually and forms the hole device, sealing device sets up power motor subassembly's inside, and is located the top of hole device, sealing device is used for sealing or opening the hole device.
2. The coring tool of claim 1, wherein the sealing device is in a closed position during operation, pressurized water or mud entering the inner bore device from the central throughbore of the coring bit causes the power motor assembly to planetary, and the planetary motion of the power motor assembly powers the coring bit via the universal shaft assembly and the drive shaft assembly and drives the coring bit in an accelerated manner.
3. the coring tool of claim 1, wherein the sealing device is in an open state and the inner bore device is in an open state when not in operation.
4. The coring tool of claim 1, further comprising a centering assembly disposed distal to an end of the power motor assembly that is threadably coupled to the universal shaft assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920276876.7U CN209780813U (en) | 2019-03-05 | 2019-03-05 | Coring tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920276876.7U CN209780813U (en) | 2019-03-05 | 2019-03-05 | Coring tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209780813U true CN209780813U (en) | 2019-12-13 |
Family
ID=68796631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920276876.7U Active CN209780813U (en) | 2019-03-05 | 2019-03-05 | Coring tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209780813U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112324336A (en) * | 2020-10-30 | 2021-02-05 | 中国地质大学（武汉） | Rope coring screw drill for geological exploration of horizontal directional drilling engineering |
-
2019
- 2019-03-05 CN CN201920276876.7U patent/CN209780813U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112324336A (en) * | 2020-10-30 | 2021-02-05 | 中国地质大学（武汉） | Rope coring screw drill for geological exploration of horizontal directional drilling engineering |
| CN112324336B (en) * | 2020-10-30 | 2021-09-07 | 中国地质大学（武汉） | Rope coring screw drill for geological exploration of horizontal directional drilling engineering |
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