Deep hole comprehensive guarantee method and equipment for geological exploration

Abstract

The invention relates to the field of hydrogeological survey, and particularly discloses a deep hole comprehensive guarantee method and equipment for geological prospecting, the deep hole comprehensive guarantee equipment comprises a thick-wall casing, a drill rod, a drill bit, an auxiliary traction module, a cleaning limiting module and a processing module, the auxiliary traction module is used for pulling the thick-wall casing to move at the same time in the reaming and drilling process of the drill bit, and the processing module is used for processing the thick-wall casing. The cleaning limiting module is used for scraping off unstable rock blocks when the auxiliary traction module drives the thick-wall casing pipe to pass through a loose deep hole rock wall, the processing module is used for smashing the rock blocks scraped off by the cleaning limiting module into rock powder to prevent the rock blocks from being stacked at the bottom of a deep hole, and the auxiliary traction module comprises a movable lantern ring and an electric push rod. The drill rod is located at the circle center of the interior of the thick-wall sleeve. The auxiliary traction module is arranged to drive the thick-wall casing pipe to enter a deep hole while reaming is conducted, the hole wall can be supported in time, in addition, downward pulling force is provided at the bottom, and the force for hammering the casing pipe on the upper portion can be reduced.

Description

technical field [0001] The invention relates to the technical field of geological exploration, in particular to a deep hole comprehensive guarantee method and equipment for geological exploration. Background technique [0002] Prospecting in alpine and canyon areas, there are thick pebbles and gravel layers in the geology of this area, there will be more boulders distributed, obvious overhead, loose structure, and complicated geological stratification. In recent years, casing and pipe are often used in the survey When drilling deep holes in the same way, the casing bit and the pipe need to use a thin-walled casing, but as the length of the follow-up casing in the deep hole increases, the torque will gradually increase, which will easily cause the casing to break, while using a thick-walled casing The drilling cost generated by the retaining wall process is much lower than that of the thin-walled casing retaining wall, and the stress it can withstand is greater. The outer di...

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Problems solved by technology

[0003] However, due to the obvious geological overhead and loose structure in the alpine and canyon areas, the rock blocks on the rock wall may loosen in the deep hole after reaming, which will prevent the casing from moving downward in the deep hole. If the casing is hammered continuously, the The casing is subjected to excessive stress, which leads to distortion, which affects the protection effect of the deep hole. In addition, rocks loosen and fall into the bottom of the deep hole. If this cannot be dealt with, it will affect the continued drilling of the deep hole. For this reason, We propose a deep hole comprehensive guarantee method and equipment for geological exploration

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