CN-122014108-A - Directional device for inclined drilling and hole distribution method

CN122014108ACN 122014108 ACN122014108 ACN 122014108ACN-122014108-A

Abstract

The invention relates to the technical field of geological survey, and provides an orientation device and a hole distribution method for inclined drilling, wherein the orientation device is arranged on a drilling machine arm used for connecting a drill rod, and the drilling machine arm is arranged in an inclined way; the measuring device comprises a connecting part, a measuring part and an adjusting part, wherein the connecting part is arranged at one end far away from the drilling machine arm, one end of the adjusting part is arranged at the drilling machine arm, the other end of the adjusting part is matched with the connecting part, and the adjusting part is suitable for adjusting an included angle between the connecting part and the horizontal direction. According to the invention, the measuring part is arranged at the tail end of the connecting part, and the included angle between the measuring part and the horizontal direction is regulated and controlled in real time by the regulating part, so that the interference of the drilling machine body on measurement is effectively avoided, the orientation precision and repeatability are obviously improved, meanwhile, the operation flow is simplified, the requirements on professional skills of personnel are reduced, and the device has good environmental adaptability, universality and engineering practicability.

Inventors

YUAN JIANJIANG
ZHANG CHUNLIN
NING SHUZHENG
GU KOUQUAN
LING YUCHEN

Assignees

中国煤炭地质总局勘查研究总院
中煤地(北京)地质科学技术研究院有限责任公司

Dates

Publication Date: 20260512
Application Date: 20251222

Claims (10)

1. An orientation device for inclined drilling, characterized in that the orientation device is arranged on a drill arm (2) for connecting a drill rod (1), the drill arm (2) being arranged inclined, the orientation device comprising: A connecting part (3), wherein one end of the connecting part (3) is arranged on the drilling machine arm (2), and the other end of the connecting part (3) extends in the direction opposite to the inclination direction of the drilling machine arm (2); a measuring part (4) arranged at one end of the connecting part (3) far away from the drilling machine arm (2); An adjusting part (5), wherein one end of the adjusting part (5) is arranged on the drilling machine arm (2), and the other end of the adjusting part (5) is matched with the connecting part (3); wherein the adjusting part (5) is suitable for adjusting the included angle between the connecting part (3) and the horizontal direction.
2. The inclined borehole orientation device according to claim 1, wherein the connection (3) comprises: the first mounting seat (31) is detachably arranged on the drilling machine arm (2); And the end part of the connecting rod (32) is hinged with the first mounting seat (31).
3. The inclined borehole orientation apparatus according to claim 2, wherein, The connecting rod (32) is of a telescopic structure.
4. The inclined borehole orientation device according to claim 2, wherein the measurement section (4) comprises: A support plate (41) arranged at one end of the connecting rod (32) far away from the first mounting seat (31); And a geological compass (42) provided on the surface of the pallet (41).
5. The inclined borehole orientation device according to claim 4, wherein the measurement section (4) further comprises: And the fixing clamp (43) is arranged on the surface of the supporting plate (41) and is suitable for being connected and matched with the geology Luo Panka.
6. An inclined borehole orientation apparatus according to claim 4 or 5, The supporting plate (41) is detachably connected with the connecting rod (32), and the supporting plate (41) can rotate by taking the connecting rod (32) as an axis; Wherein the junction of the pallet (41) and the connecting rod (32) is provided with a fastener (44).
7. The inclined borehole orientation device according to claim 2, wherein the adjustment portion (5) comprises: The second mounting seat (51) is detachably arranged on the drilling machine arm (2); the supporting rod (52) is fixedly arranged on the second mounting seat (51) at one end of the supporting rod (52), and the other end of the supporting rod (52) is matched with the connecting rod (32); the adjusting piece (53) is movably arranged at one end, close to the connecting rod (32), of the supporting rod (52), and the adjusting piece (53) is abutted with the connecting rod (32); the adjusting piece (53) can move along the axial direction of the supporting rod (52) to push the supporting rod (52) to rotate by taking a hinge point on the first mounting seat (31) as a circle center.
8. The inclined borehole orientation apparatus of claim 2, further comprising: and a level (6) provided on the surface of the connecting rod (32).
9. A hole distribution method of inclined drilling, characterized in that the inclined drilling orientation device according to any one of the preceding claims 1 to 8 is used, comprising at least the following steps: -mounting the orientation means to the drill arm (2); an adjusting piece (53) is adjusted to enable the connecting rod (32) to be in a horizontal state; Adjusting the geological compass (42) to a horizontal state; the orientation of the inclined borehole is accomplished by adjusting the pointing direction of the drill arm (2) to a target azimuth based on a first value of a geological compass (42).
10. The hole distribution method of inclined drilling according to claim 9, further comprising the steps of: -before or after orienting the inclined borehole using the orienting means, abutting a geological compass (42) against the drill arm (2), adjusting the degree of inclination of the drill arm (2) based on a second value of the geological compass (42) until a target inclination is reached; and hole distribution is carried out based on the target azimuth and the target inclination angle.

Description

Directional device for inclined drilling and hole distribution method Technical Field The invention relates to the technical field of geological survey, in particular to an orientation device for inclined drilling and a hole distribution method. Background In drilling operations such as field geological exploration, mineral resource exploration, engineering geological investigation and the like, inclined drilling is widely applied to directional coring and detection tasks under complex geological conditions because the inclined drilling can effectively penetrate through specific geological structures, improve drilling efficiency and acquire richer underground information. However, in the actual construction process, how to quickly and accurately complete hole distribution and orientation of inclined drilling in the field is always a key technical problem for restricting drilling precision and efficiency. Currently, the following methods are mainly adopted in the industry to realize directional layout of inclined drilling: The first type of method relies on high-precision measuring instruments such as total stations, level gauges and the like for azimuth measurement and positioning. The method can theoretically provide higher spatial positioning accuracy, but has a plurality of limitations in field practical application. Firstly, the total station and other equipment are large in size and heavy in weight, are inconvenient to carry and erect in a field environment with severe relief and limited traffic conditions, and secondly, the operation flow is complex, and the requirements on professional literacy and technical proficiency of operators are high through a plurality of steps of centering, leveling, aiming, data acquisition and processing and the like. In addition, in the azimuth adjustment process of the drilling machine, a real-time feedback mechanism of 'adjustment and measurement at the same time' cannot be realized, repeated disassembly and assembly or movement of measurement equipment are often needed, and the requirements of a simple, convenient and quick field geological investigation and a low-cost operation mode are difficult to meet. The second method generally adopts a hand-held magnetic compass to perform remote visual aiming and positioning. The method has the advantages of light equipment, simple operation, low cost and the like, but is limited by factors such as parallax effect caused by human eye aiming error and oversized target body, geomagnetic environment interference and the like, and has low orientation precision. Particularly, under the condition of larger inclination angle of drilling or irregular drilling platform, the spatial orientation of the axis of the drilling tool is difficult to accurately judge, so that the deviation of the hole distribution azimuth exceeds the allowable range, and the accuracy of subsequent geological interpretation and engineering decision is affected. Therefore, a technology which is simple to operate, has strong anti-interference capability and can realize high-precision real-time orientation is needed to truly improve the overall technical level and engineering implementation quality of field geological drilling work. Disclosure of Invention The invention provides an orientation device and a hole distribution method for inclined drilling, which are used for solving the technical problems that the existing inclined drilling positioning method cannot achieve flexibility, anti-interference performance, high precision and the like. The invention provides an orientation device for inclined drilling, which is arranged on a drill arm for connecting a drill rod, wherein the drill arm is arranged in an inclined way, and the orientation device comprises: The connecting part is arranged at one end of the connecting part and the other end of the connecting part extends to the direction opposite to the inclination direction of the drilling machine arm; The measuring part is arranged at one end of the connecting part far away from the drill arm; The adjusting part is provided with one end arranged on the drilling machine arm, and the other end of the adjusting part is matched with the connecting part; Wherein, the adjusting part is suitable for adjusting the contained angle of connecting portion and horizontal direction. According to the present invention there is provided an orientation device for inclined drilling, The connection part includes: The first mounting seat is detachably arranged on the drilling machine arm; and the end part of the connecting rod is hinged with the first mounting seat. According to the invention, the orientation device for inclined drilling holes is provided The connecting rod is of a telescopic structure. According to the present invention there is provided an inclined borehole orientation apparatus, the measurement section comprising: The supporting plate is arranged at one end of the connecting rod, which is far away from the first