FIELD: physics; geophysics.
SUBSTANCE: invention relates to well exploration geophysics, particularly for examining crosshole space during exploration of mineral deposits, including kimberlite pipes at small depth of exploration wells in the host rocks. Electric dipoles and magnetic sensors in form of magnetometres based on Josephson effect are placed in each of the two adjacent wells. A series of identical pulses of electric field with given duration and pulse ratio are emitted from the wells successively. The magnetometres based on Josephson effect are used to pick up orthogonal components of the magnetic component of the direct pulse perpendicular the well and of pulses reflected from irregularities in the medium under examination, as well as transit time of the direct pulse to the receiving device in the observation well, the transit time of reflected pulses from the emitter to the reflecting boundary and back, their amplitude, shape and phase.
EFFECT: larger examined space, reliable determination of existence, location and approximate dimensions of the ore body in the mesh of exploration wells and possibility of detecting ore bodies which insignificantly differ from the host rocks on electromagnetic properties.
2 dwg
