Real-time reflection and advanced detection system and method of geological conditions applied to drilling rig

Abstract

The invention discloses a system and method for real-time reflection and advanced detection of geological conditions applied to a drilling rig, comprising: a drilling rig; a high-precision rock strata drilling probe with sensors for collecting rock physical and mechanical property parameters during the drilling process; a drilling rig Real-time analysis system of advanced parameters; drilling radar, including transmitting antenna and receiving antenna for detecting electromagnetic wave signals of surrounding rock parameters and water layers and other unfavorable geological bodies within a certain range around the drill bit. Using the real-time reflection and advanced detection system of geological conditions, not only the real-time analysis system of drilling parameters can be used to accurately determine the type and physical and mechanical properties of the rock formation within the drilled hole diameter, but also the drilling radar can be used to predict the location of the drill bit within a certain range. The condition of the surrounding rock is presented in the form of a stratum distribution map, and the surrounding rock information including the crack angle, number, and stratum boundaries can also be recorded by using a high-precision strata drilling detector.

Description

technical field [0001] The invention relates to the field of advanced detection of underground engineering geology, in particular to a real-time reflection and advanced detection system of geological conditions applied to drilling rigs. Background technique [0002] In the construction of underground engineering, the weak fault zone and unfavorable geological bodies of surrounding rocks cause great safety hazards to the engineering construction of tunnels or roadways. Therefore, we must find out the unfavorable geological bodies and Strength of surrounding rock ahead. At present, the detection of surrounding rock strength mainly adopts the method of drilling core sampling, and the time interval from the on-site coring to the experimental report is long by using the drilling method, which seriously restricts the construction progress and increases the project budget cost; The detection is mainly carried out by means of induced polarization and borehole radar. However, when t...

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Problems solved by technology

At present, the detection of surrounding rock strength mainly adopts the method of drilling core sampling, and the time interval from the on-site coring to the experimental report is long by using the drilling method, which seriously restricts the construction progress and increases the project budget cost; The detection is mainly carried out by means of induced polarization and borehole radar. However, when the borehole radar and induced polarization encounter complex stratum environments, there are often large errors in the detection results, and the simple hole test can only Ascertain the unfavorable geological conditions within the drilling range, the measurement range is small and the representativeness is poor

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