DEVICE FOR OFFSHORE ELECTRIC PROBING OF DEPOSITS OF DEEP-SEA POLYMETALLIC SULPHIDES AND METHOD FOR ITS IMPLEMENTATION Russian patent published in 2023 - IPC G01V3/06 G01V3/15 

FIELD: exploration geophysics.

SUBSTANCE: inventions relate to the field of exploration geophysics, namely, equipment for the implementation of geoelectro exploration by resistance method, and are designed for forecasting (determining power and borders) of ore bodies of deep-sea polymetallic sulfides (DSPS) at sea depths up to 4000 m. The device for marine electric reconnaissance contains a remote-controlled apparatus (RCA) with the garage, on which the winch of the communication line of neutral buoyancy is installed, which provides the ability to move the RCA according to the given system of profiles. The garage and RCA are equipped with acoustic navigation systems that ensure the linking of the garage relative to the vessel and the RCA regarding the garage with an accuracy of no worse than 0.2% of the inclined range. An electric exploration complex is installed on the RCA, consisting of a receiving module connected by a line of communication with the RCA and with the receiving line located below the receiving line of the generator module with a generator line of 5-10 meters with generator electrodes. The generator and receiving lines are made of a low hydrodynamic resistance cable. On the receiving line there are receiving electrodes that form at least 7 measuring varieties. The generator line has at the end a miniekholot with a pressure sensor. RCA with the installed electrical exploration complex moves above the bottom along a given path. In this case, the receiving and generator line are towed vertically at a speed of about 1 knot. The height of the generator line above the bottom is controlled by a minioeholite.

EFFECT: increasing the accuracy of determining the thickness and configuration of ore bodies of the RCA at great depths, high productivity.

4 cl, 6 dwg