BOTTOM STATION (VERSIONS) Russian patent published in 2009 - IPC G01V3/08 

FIELD: physics; geophysics.

SUBSTANCE: group of inventions (versions) relates to exploration geophysics, in particular to the systems of equipment for conducting sea geoelectrical exploration and is meant for predicting accumulation of hydrocarbons and other minerals, as well as for studying deep structure of the earth's crust. Proposed is a modular bottom station based on combining a basic module for measuring electromagnetic characteristics of sea bottom rocks with additional modules containing equipment for measuring other parametres of the rocks. The additional modules are fitted by the basic module and a weight. All the recording and power supply systems are accommodated in the basic module and are connected to the other modules via pressure-sealed connectors in the housing of the module, and the modules themselves are fixed on the weight using Kevlar sheets which are fitted with an electrochemical releasing element. The additional modules of the bottom station are modules for magnetic and/or seismic measurements. "Rods" can be fastened at the lower part of the housing of the station and in the initial state they are directed upwards at an angle not less than 15° from the vertical and are held using retainers, which are joined to the releasing element of a hoisting device (HD). The "rods" can be telescopic. In another version of the proposed bottom station, the basic module can be used independently. In that case, a hard conical element "basin", made non-conducting material for example polyethylene, polyurethane etc can be placed between the module and the weight. The basic module can also be connected on a semi-rigid rod to a module for magnetic measurements.

EFFECT: measuring different parametres of sea bottom rocks in a single launch, provision for sensitivity of detectors, which exceeds that of stations with such single type measuring devices, compactness and convenient use.

8 cl, 4 dwg