| 摘要 |
There is proposed a method of seismic prospecting in an aquatic medium with the aid of a device comprising at least one seismic cable furnished with sensors and at least one mobile seismic source. The method comprises the unfurling of the cable in the water, constrained by a value of maximum curvature of track in the water and by a maximum value of deviation with respect to a desired course in the terrestrial reference frame, the course being subject to a maximum value of speed with respect to the terrestrial reference frame. The method comprises, simultaneously, the displacement of the seismic source in a reference frame tied to the cable and the emission of waves by the seismic source, the waves being reflected by the aquatic bottom and sensed by the cable. Such a method makes it possible in particular to obtain a good seismic density above a field under investigation during seismic prospecting, with lower motorization loads and lower stresses exerted on the cable. |
