SIGNAL RECEIVING SYSTEM ABLE TO BE COUPLED WITH THE WALL OF A WELL OR DRILLING

摘要

A signal receiving system adapted to be lowered into a drilling and suspended from an electro-bearer cable and adapted to be coupled with walls of the drilling so as to receive signals propagating in the surrounding formations. One or more expansible chambers are interconnected by ducts and suspended under a rigid body connected to the surface by the electro-bearer cable. Each expansible chamber includes flexible side walls into which are integrated at least one receiving element. The expansible chambers are adapted to be expanded by injecting a compressed fluid produced by a hydraulic system contained in the rigid body. The receiving elements are connected to a signal acquisition device disposed in the rigid body which communicates with a laboratory truck on a surface.