METHOD AND DEVICE FOR INCREASING THE TRANSMISSION COEFFICIENT TO GEOLOGICAL FORMATIONS OF THE ENERGY GENERATED BY A SEISMIC SOURCE IN A WELL

摘要

ABSTRACT OF THE DISCLOSURE: Method for improving the transmittance to such geological formations, energy generated by the triggering of a seismic source lowered into a well or borehole and device for its implementation. Contained is well defines a zone containing the seismic source to stop the spread of the well, out of the confined area, the energy that is generated by the seismic source, its outbreak. The containment is achieved by sealing the wells of either side of the seismic source. Using two expansible members arranged in the well on the other of the source and each comprising for example a sheath made of elastomer, an annular piston whose movement has the effect of expanding the sleeve and hydraulic means for moving the piston . Application to the seismic exploration in drilling.