METHOD OF GUIDING WELL BOTTOM OF ONE WELL (RELIEF) AT ANOTHER WELL BORE (OUT- OF-CONTROL) Russian patent published in 1994 - IPC

FIELD: geophysics. SUBSTANCE: method involves the steps of: creating electromagnetic field in a radio-wave range of medium and short waves in near-well space, taking axial component E_ax of electric field as a reference signal and axial component H_ax of magnetic field as well in a plurality of points of relief well, determining correction direction of the guided well by a sense of product H_ax·E_ax. The method is characterized in that enhanced guidance accuracy in a wide range of magnetic properties of pipes of the out-of-control well at high specific electric conductivity of rocks surrounding the wells due to immunity of axial magnetic components to noise and constant sense of product H_ax·E_ax is obtained. EFFECT: enhanced accuracy.