Drilling rig attitude measuring instrument and drilling azimuth adjustment method

Abstract

The invention discloses a drill attitude measuring instrument and a drilling direction adjustment method. The drill attitude measuring instrument comprises a north seeker and a direction adjustment instrument, wherein the direction adjustment instrument is used for measuring a horizontal included angle between the north seeker and a to-be-measured drill; the direction adjustment instrument is horizontally arranged on the north seeker and comprises a second data processor, a three-axis gyroscope, a second three-axis accelerometer, a second analog-to-digital conversion circuit and a second power supply. The drilling direction adjustment method comprises the steps: (1) seeking the north in a static state: measuring a true azimuth angle Phi1 through the north seeker; (2) adjusting the drilling direction: measuring the horizontal included angle Delta Phi between the north seeker and the to-be-measured drill by adopting the direction adjustment instrument, and rotating the to-be-measured drill according to a measurement result of the direction adjustment instrument until Delta Phi + Phi1 is equal to Phi0, wherein Phi0 is a predetermined target true azimuth angle of the to-be-measured drill. The drill attitude measuring instrument and the drilling direction adjustment method have the advantages of reasonable design, simplicity and convenience in use and operation, convenience in realization, good use effect and high orienting accuracy, the drilling direction of the drill can be accurately measured, and the drill can be oriented.

Description

technical field [0001] The invention belongs to the technical field of drilling rig attitude measurement, and in particular relates to a drilling rig attitude measuring instrument and a drilling azimuth adjustment method. Background technique [0002] With the development of science and technology, the coal mining technology has also been improved. In recent years, the directional drilling technology in coal mines has been popularized and applied. When actually carrying out directional drilling in coal mines, the method of drilling rig orientation is very important. The drilling rig orientation designation determines the drilling direction of the drilling rig, also known as the drilling direction or drilling azimuth, so that the drilling direction of the drilling rig meets the preset requirements. Azimuth angle, also known as horizon longitude (azimuth angle), is one of the methods to measure the angle difference between objects on a plane. The azimuth angle is the distance ...

AI Technical Summary

Problems solved by technology

However, in actual use, due to the complex geological conditions of the formation and the differences in the mechanical properties of the geological structure and the rock formation, and the difficulty in controlling the drilling trajectory, the traditional pull-wire orientation method has complex operations, cumbersome orientation process, and difficult control of orientation accuracy. poor accuracy etc.

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