Near-horizontal continuous directional coring advance geological exploration system and method

Abstract

A near-horizontal continuous directional coring advance geological exploration system and method, which utilizes an inclination measuring core drilling tool for drilling trajectory inclination measurement, core collection, and power supply and control of the inclination correction drilling tool while drilling; using the inclination correction drilling tool while drilling Control the drilling trajectory to ensure that the core drilling hole extends along the design trajectory; use the mud pump, water feeder, winch, horizontal hydraulic conveying device and horizontal hydraulic salvage device to perform near-horizontal salvage and lowering of the inclination core drilling tool to realize the core Rapid extraction and continuous extraction; thus, the present invention combines the advantages of directional drilling process control while drilling trajectory control and wireline coring process high-efficiency and rapid core extraction, and solves the problem of near-horizontal salvage and lowering, inclination measurement while drilling, and inclination correction while drilling and other difficult problems, the core drilling and the precise control of the drilling trajectory are realized at the same time, which improves the accuracy, exploration distance and efficiency of advanced geological exploration, and reduces the construction cost. Advance geological exploration and geological forecast of tunnel engineering.

Description

technical field [0001] The invention relates to the technical field of geological exploration, in particular to a near-horizontal continuous directional coring advance geological exploration system and method. Background technique [0002] Surface highway tunnels, railway tunnels, mine tunnels and other types of shaft tunnel projects are important foundations for the construction of expressways, railways and mining activities. Geological exploration is required before their design, and advanced geological prediction and geological anomaly verification are also required during construction. To ensure the reasonable design of wells, tunnels and tunnels, and to ensure construction safety. [0003] Drilling is an important technical means for advanced geological exploration. At present, there are mainly two methods: ground straight hole exploration and tunnel near-horizontal drilling exploration. However, there are the following shortcomings: 1. The well, road and tunnel projec...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a near-horizontal continuous directional coring advance geological exploration system and method, which can solve the problems of short exploration distance, low control precision of exploration drilling trajectory, and low exploration efficiency existing in advanced geological exploration of shaft and tunnel engineering technical problems, improve the accuracy, detection distance and efficiency of advanced geological exploration, and reduce construction costs

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