Exploration well drilling is carried out at a depth of 2,000 meters or more for a detailed study of the geological structure of the earth’s crust, the productivity of the field and other important parameters.
Drilling vertical wells up to 2000M NQ, 1350 M HQ;
Injections into individual well intervals;
Experimental single pumping, lasting from one day to 5 days;
Pumping water during flow-measurement of wells in static and dynamic conditions;
Water sample analysis;
Installation in wells KVP (cable vibration piezometer).
Geophysical works. Logging is carried out by methods:
Optical logging (for the dry part of the well acoustic televiewers (OTV/ATV);
Determination of uniaxial compressive strength in the natural state;
The same, in the water-saturated state;
The same for uniaxial tension;
Direct shear tests.
Conditional linkage in the pattern. With t/m2;
The angle of internal friction, f. deg;
Soil density, p. g/cm3;
Moisture of natural soil. We, d.e.; Porosity coefficient e de;
Strength of e wateras, kgf/cm2;
Tensile strength , kgf/cm2;
Volumetric weight (density) in. g/cm3;
Skeleton specific weight , d, g/cm3;
Porosity, p. %;
Fracturing intensity. w. M-1;
Lithological description of wells with engineering geological elements (EGE);
Geotechnical description of the core according to the classification of D. Lobshir and Belyavsky.