Aggregation methods hydrogeomechanical, electrical and dowsing to select areas of hydrogeological wells

Abstract

In the territories of mountain-folded regions, aquifers in rock masses are associated with tectonic disturbances. To identify promising faults and their detailing for water supply or drainage of mining enterprises, methods of electrical exploration are quite effectively applied. When choosing promising areas for laying water supply wells in rock masses, good results are obtained from a combination of exploratory techniques for hydrogeomechanics and biolocation. Analysis of the orientation of faults in the field of modern tectonic stresses from the standpoint of hydrogeomechanics makes it possible to assume, with a high degree of probability, the kinematic type of tectonic disturbances. The characteristics of the tectonic stress field can be identified in the process of exploratory research. Dowsing allows you to identify the location, orientation and width of faults in the search area with minimal cost. A quantitative interpretation biolocation effects makes it possible to identify the most flooded areas of tectonic disturbances, which are very often associated with fault intersections. The effectiveness of dowsing is significantly reduced when studying the hydrogeological section vertically (in depth). Determining the thickness of integumentary formations, assessing the displacement, in depth, of the most flooded areas is not as reliable as studies performed in a generalized subhorizontal plane (in plan). Electrical exploration data reveals the structure of the fault in plan and vertically, allows you to assess the lithological composition of the rocks, determine the position of lithological contacts and the thickness of the cover formations. The results of electrical exploration make it possible to quantify the degree of water cut and permeability of the studied areas.