Geological supplementary survey method in treatment process of ground water disaster area

A surface water and regional technology, applied in earthwork drilling, wellbore/well components, directional drilling, etc., can solve the problems of large drilling volume, low reconnaissance efficiency, low drilling encounter rate, etc., and achieve high drilling encounter rate , Improve the efficiency of reconnaissance and ensure the effect of safe production

Pending Publication Date: 2022-01-28
HEBEI COAL SCI RES INST
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Problems solved by technology

However, the reconnaissance project requires a large amount of drilling engineering, and the drilling rate is low, resulting in low reconnaissance efficiency and poor practicability

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  • Geological supplementary survey method in treatment process of ground water disaster area
  • Geological supplementary survey method in treatment process of ground water disaster area
  • Geological supplementary survey method in treatment process of ground water disaster area

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[0033] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0034] Please also refer to figure 1 , Figure 2 to Figure 3 , the geological reconnaissance method in the process of surface water damage regional control provided by the present invention is now described. The geological supplementary prospecting method in the process of surface water disaster regional governance includes exploring a fault 80 and exploring a subsidence column 90; wherein, investigating a fault 80 includes the following steps:

[0035] S100: Select the first directional well 10.

[0036] S200: Drilling the first directional borehole 20, using a...

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Abstract

The invention provides a geological supplementary survey method in the treatment process of a ground water disaster area. The geological supplementary survey method comprises the steps of exploring a fault and exploring a collapse column. The step of exploring a fault comprises the steps of selecting a first directional well, drilling a first directional drill hole, drilling a second directional drill hole, drilling a third directional drill hole and drilling a fourth directional drill hole. A first directional drill hole is drilled, and the fault position is determined. A second directional drill hole is drilled, and the coordinates of the control points F2 and A1 are obtained in the process; and a third directional drill hole is drilled and the coordinates of the control points D1, F3, B1, B2 and B3 are obtained respectively in the process. And a fourth directional drill hole is drilled, and coordinates of a control point C1 are obtained in the process. According to the geological supplementary exploration method in the treatment process of the ground water disaster area, the previous supplementary exploration mode is changed, the work amount is small, the drilling rate is high, the supplementary exploration efficiency can be effectively improved, and the practicability is high.

Description

technical field [0001] The invention belongs to the technical field of geological reconnaissance, and in particular relates to a geological reconnaissance method in the process of surface water damage regional control. Background technique [0002] When there are high-pressure water-rich or extremely strong aquifers on the coal seam floor, the method of surface water hazard regional treatment is usually used to carry out local grouting transformation on the aquifer, so that the coal seam mining will no longer be threatened by the water in the aquifer, thereby ensuring Mine prevention and control water security. However, due to the current problems of insufficient exploration in various coal mines, especially in the deep part of the mine, local hidden faults, unidentified collapse columns, and unclear occurrence status of coal seams have seriously affected the mining layout in this area. [0003] In the existing technology, when the degree of geological exploration is insuff...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B49/00E21B7/04
CPCE21B49/00E21B49/005E21B7/04
Inventor 张党育贾靖蒋勤明李玉宝高春芳曾健勇刘飞虎
Owner HEBEI COAL SCI RES INST
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