Patent ID: 6065538
Filing Date: 2000-05-23
Classification: E21B,G01D,G01N,G01V

Abstract:
A method of obtaining geophysical information about subsurface formations, comprising:(a) forming a survey wellbore along a predetermined wellpath, a portion of said survey wellbore in proximity to and substantially parallel to a producing reservoir and distant from the surface of the earth;(b) placing a first plurality of spaced seismic receivers in the survey wellbore;(c) generating seismic pulses into the earth's subsurface formations;(d) detecting by the plurality of seismic receivers seismic waves reflected by earth's formations in response to the generated seismic pulses and generating signals responsive to such detected seismic waves; and(e) processing the generated signals to obtain geophysical information about the subsurface formations.