Published:January 01, 2011
The present state of seismic acquisition and some of its surprisingly conservative aspects in particular cannot be understood without looking back into the short history of geophysics. I begin by discussing how improvements in instrumentation enabled early geophysicists to distinguish refections in the wiggling seismograms behind the first refracted arrival, how the geophysicists were led to deploy their instruments into the sea, and how the digital revolution allowed them to shift from 2D seismic acquisition to 3D and then to 4D.
Figures & Tables
Seismic Acquisition from Yesterday to Tomorrow
During the last few years, seismic acquisition has gone through a phase of fast acceleration, attested to by the development of wide-azimuth surveys, the continuous increase in channel count, and the progress in simultaneous shooting. These developments, made possible by technological advancements today, will enable the production of clearer seismic images tomorrow. Seismic Acquisition from Yesterday to Tomorrow (SEG Distinguished Instructor Series No. 14), the companion book for the 2011 SEG/EAGE Distinguished Instructor Short Course, offers a reflection on this evolution. It starts with a short historical overview, followed by discussions of signal and noise. The core of the book is the relationship between acquisition parameters and seismicimage quality. It will provide geoscientists and all those interested in seismic images with the still unconventional view of seismic data acquisition as the first component of seismic imaging.