Method for accurately positioning drilling direction
By using the tunnel center line as the basis, combining horizontal laser instruments and mobile devices, the drilling orientation approval is solved by using the laser line to intersect the drilling rig runway, and the problems of large deviations in drilling construction and difficulty in positioning are improved, and the accuracy and efficiency of drilling construction are improved.
Patent Information
- Application Number
- CN202311860882.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-31
- Publication Date
- 2025-07-01
AI Technical Summary
In coal seam mining, there are large errors in the drilling construction location and difficulty in positioning, resulting in the control range not meeting the standards and blind spots, which affects the effectiveness and benefits of gas treatment projects.
Based on the tunnel midline, a horizontal laser instrument and a mobile device are used to achieve horizontal movement of the midline. The laser line and the drilling rig runway intersection are used for azimuth approval, and the drilling orientation is approved using a protractor.
Improve the accuracy of drilling holes, shorten the line laying time, and ensure the accuracy and quality of drilling construction.
Abstract
Description
Technical Field
[0001] The present invention belongs to the technical field of drilling positioning, and particularly relates to a method for accurately positioning the drilling azimuth. Background Art
[0002] For the mining of coal seam groups, measures such as constructing boreholes to pre-drain coal seam gas and intercepting the pressure-relieved gas of overlying and underlying coal seams are adopted for gas control. For a long time, there have been problems such as large errors in the construction azimuth of boreholes and difficulties in positioning the opening azimuth, resulting in non-compliance of the control range and the existence of blind spots, which have become the key factors affecting the effect and benefit of gas control projects. Summary of the Invention
[0003] The purpose of the present invention is to provide a method for accurately positioning the drilling azimuth, which improves the accuracy of the drilling opening and thus ensures the quality of drilling construction.
[0004] The technical solution adopted by the present invention is a method for accurately positioning the drilling azimuth, which includes the following steps: Step 1: Use the roadway center line as the baseline for determining and verifying the drilling azimuth; Step 2: Use a horizontal laser instrument in cooperation with a moving device to achieve the horizontal movement of the center line; Step 3: Use the laser line to verify the drill field center line; Step 4: Use a protractor in cooperation with the drill field center line to verify the drilling azimuth.
[0005] Preferably, in the above step 3, the intersection line formed by the laser line and the drilling rig runway is used for azimuth verification.
[0006] Compared with the prior art, the beneficial effect of the present invention is that it solves problems such as large deviation of the drilling azimuth and long wire laying time, significantly improves the quality of the drilling opening azimuth, and effectively ensures the accuracy of drilling construction. Detailed Embodiment
[0007] The following will further explain the present invention to facilitate better understanding by those skilled in the art.
[0008] Embodiment 1 A method for accurately positioning the drilling azimuth includes the following steps: Step 1: Use the roadway center line as the baseline for determining and verifying the drilling azimuth; Step 2: Use a horizontal laser instrument in cooperation with a moving device to achieve the horizontal movement of the center line; Step 3: Use the laser line to verify the drill field center line, and use the intersection line formed by the laser line and the drilling rig runway for azimuth verification; Step 4: Use a protractor in cooperation with the drill field center line to verify the drilling azimuth.
[0009] Taking the center line of the roadway (drilling site) as the baseline for determining and verifying the drilling azimuth, the horizontal movement of the center line is realized by using a horizontal laser instrument in cooperation with a moving device. Since the laser can cover the entire section, the intersection line formed by the laser line and the drilling rig runway is used for azimuth verification. Compared with the original method of determining the azimuth by releasing the center line, it has the characteristics of convenient and accurate center line movement, ensuring the drilling construction quality and shortening the drilling opening time.
[0010] The method of constructing this cross - layer fan - shaped drilling in the drilling site is used for gas control. The drilling azimuths are all different, resulting in problems such as large drilling azimuth deviation and long wire - laying time. After adopting this method, the quality of the drilling opening azimuth has been significantly improved, effectively ensuring the drilling construction accuracy.
Claims
1. A method for accurately positioning the drilling orientation, characterized in that, It includes the following steps: Step 1: Use the roadway center line as the basis line for determining and verifying the drilling azimuth; Step 2: Use a horizontal laser instrument in cooperation with a moving device to achieve the horizontal movement of the center line; Step 3: Use the laser line to verify the center line of the drilling site; Step 4: Use a protractor in cooperation with the center line of the drilling site to verify the drilling azimuth.
2. The method for accurately positioning the drilling orientation according to claim 1, wherein, In step 3, use the intersection line formed by the laser line and the drilling rig runway for azimuth verification.