A three-dimensional surveying and mapping device based on Beidou navigation technology

Abstract

The invention discloses a three-dimensional surveying and mapping device based on Beidou navigation technology. An attitude and angle measurement device is fixedly installed inside the surveying and mapping device housing. A guide workpiece is axially connected to the inside of the surveying and mapping device housing. The left end of the guide workpiece is threaded with a pointing surveying pen. The combined measurement method of the guide shaft attitude of the gyroscope eliminates the calculation error of the attitude angle caused by the rotation and swing of the tool, so that the more accurate tool attitude parameters such as the guide shaft inclination angle, the relative azimuth angle, and the guide shaft rotation speed are obtained through calculation, which solves the problem of the guide shaft. The problem of attitude measurement signal transmission when the tool rotating jacket and guide shaft are both in the rotating state.

Description

technical field [0001] The invention relates to the field of three-dimensional surveying and mapping devices, in particular to a three-dimensional surveying and mapping device based on Beidou navigation technology. Background technique [0002] The comprehensive and rapid development of the whole society has led to a continuous increase in the demand for energy. Among them, oil has become an indispensable strategic resource for various countries in the world in the process of improving their comprehensive strength. However, most of the oil fields in the world have gradually entered the late stage of exploitation, the difficulty of oil reservoir exploitation is increasing, and the geological conditions encountered in the exploitation process are becoming increasingly complex. [0003] Traditional directional drilling technology and sliding steering drilling technology, due to many limitations in the drilling process, are no longer suitable for drilling and production of diffi...

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Problems solved by technology

[0007] (1) The power of the existing steering mechanism used in drilling technology comes from the turbine generator, so its dependence is relatively high, and the wear of the bearing is relatively serious, which will have a certain impact on the life of the drilling tool;

[0008] (2) Most of the instruments for measuring well deviation initially used in traditional steerable drilling technology are static measurements, and it takes a long time to complete a measurement, the accuracy is not high, and the anti-interference ability is average, so they cannot be used to measure well deviation In terms of real-time measurement, although the existing measurement while drilling can measure and transmit attitude parameters, its dynamic measurement effect is not good, and it cannot be directly used for dynamic real-time measurement of attitude parameters of steering drilling tools

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