Enhanced method and device for aquatic seismic prospecting

摘要

A system for aquatic seismic prospecting includes at least one submerged mobile seismic source for creating a disturbance transmitted through an aquatic medium in the form of waves and at least one cable having a plurality of sensors for collecting waves transmitted by the at least one submerged mobile seismic source and reflected from geological layers beneath the aquatic medium. The system also includes means for detecting and measuring the reflected waves and means for placing the at least one cable under tension, the tensioning means attached to ends of the at least one cable and the tensioning means keeping the at least one cable in a pseudo-stationary position. These is also means for holding the at least one cable at a substantially constant depth greater than approximately 5 meters.

主权项

1. A system for aquatic seismic prospecting, comprising:
at least one submerged mobile seismic source for creating a disturbance transmitted through an aquatic medium in the form of waves; at least one cable of substantially zero buoyancy having a plurality of sensors for collecting waves reflected from geological layers beneath the aquatic medium; the plurality of sensors for detecting and measuring the reflected waves, the at least one cable having a first end and a second end; a drone is attached to each end of one cable of the at least one cable for placing the one cable under tension, wherein the pair of drones keep the one cable in a stationary or pseudo-stationary position; and a device selected from the group consisting of ballast containers, ballasts, buoys and thrusters for holding the at least one cable at a substantially constant depth greater than approximately 5 meters and less than 200 meters.