초록 ▼

A hydrostreamer includes connectors for joining to depending housings enclosing geophone sensors. These sensors are coupled to the bottom of the sea via such housings by the housings being appropriately weighted and externally surface serrated. Thus, the geophones detect s-waves directly from the gr

A hydrostreamer includes connectors for joining to depending housings enclosing geophone sensors. These sensors are coupled to the bottom of the sea via such housings by the housings being appropriately weighted and externally surface serrated. Thus, the geophones detect s-waves directly from the ground in single-mode conversion fashion while simultaneously, hydrophones in the hydrostreamers detect p-wave reflections in traditional fashion.

대표청구항 ▼

Apparatus for sea bottom deployment from a marine vessel for detecting the shear-wave velocity component of a seismic wave propagated form a marine seismic source following reflection of the seismic wave from a geologic boundary, said marine vessel including a cable for deploying said apparatus and

Apparatus for sea bottom deployment from a marine vessel for detecting the shear-wave velocity component of a seismic wave propagated form a marine seismic source following reflection of the seismic wave from a geologic boundary, said marine vessel including a cable for deploying said apparatus and for electrically conducting the detected shear-wave velocity component signals to the vessel, comprising, at least one seismic velocity receiver oriented for receiving acoustic velocity shear wave reflections and converting said reflections to electrical signals, a housing enclosing said velocity receiver external to and separated from said cable, ballast means located within said housing for causing said housing to rest on the sea bottom and thereby accoustically couple said velocity receiver to the sea bottom, serrated, not helically aligned surface means for said housing for stabilizing the lateral position of said housing with respect to its sea bottom location, weighted, elastically connected means for acoustically decoupling said housing from the cable, and electrical connector means depending from the cable for electrically connecting said velocity receiver within said housing for electrical conduction within the cable.