COMPLEX FOR SEISMIC EXPLORATION IN TRANSIT ZONES BASED ON MULTILINEAR DIGITAL CABLE ANTENNA Russian patent published in 2018 - IPC G01V1/38 

FIELD: acoustics.

SUBSTANCE: invention relates to the field of hydro- and geoacoustics and can be used in transit zone of water-land as a digital cable antenna for research, monitoring and seismic exploration of hydrocarbon reservoirs in transit zones and provision of engineering works. Complex for seismic exploration in transit zones based on a multiline digital antenna is proposed, in which it is proposed to use sectional structure of towed sensors that are part of a multiline digital cable antenna that allows changing geometry of the receiving antenna depending on the problem being solved, for example, increasing the length of observation profile for 2D seismic exploration by sequentially assembling sections or by increasing the viewing area in 3D seismic exploration due to parallel or fan-shaped arrangement of sections. Antenna includes sections with different types of sensors (hydrophones and 3C geophones) that can be assembled in any order, which makes it possible to cover the transit zone with a minimum of redundancy by using hydrophone sections in water, and geophonic sections – on the shallowest shoal with landfall. Hypersonic reception channel is provided in each sensor for the possibility of their individual positioning. Complex is also characterized by the ease and simplicity of complex deployment system, consisting of elements (towed sensors section, geophysical information collection unit, power unit, inflatable boat with motor, inflatable catamaran), not exceeding 100 kg by mass, which can be easily delivered to any unequipped shore or non-specialized vessel without the use of special technical means.

EFFECT: possibility of carrying out seismic exploration (including 3D seismic explorating) in the transit zone for search and monitoring of hydrocarbon deposits on profiles and areas of different scale.

1 cl, 3 dwg