FIELD: mining.
SUBSTANCE: in unfocused image shaping device currents are supplied to the well in horizontal and vertical directions as per the data of resistance method. Electrodes installed on hold-down shoe are used for measurement of stresses in orthogonal directions at each of current supplies. Measurement results of the first, second, third and fourth stresses and coordinate rotation is used for evaluation of horizontal resistivity and vertical resistivity of thickness of rocks with inclined beds.
EFFECT: non-sensitivity to bed inclination angle in unfocused instrument when using drilling fluid on hydrocarbon base.
18 cl, 4 dwg
