Lesson No. 31: The Multi-Layered Problem. Introductory Discussion
Published:January 01, 1959
The discussion has been restricted, heretofore, to the case of a single isotropic medium in which the seismic velocity is assumed to be constant. Generally speaking, the sedimentary beds with which the petroleum seismologist is concerned are neither ideally uniform as our theoretical requirements demand, nor is the subsurface of one medium. Still another item that must constantly be kept in mind is that the bedding in the subsurface studied from the geological standpoint is, at times, quite different when studied from the seismic standpoint. However, for the most part, these two aspects of bedding are generally quite conformable or parallel to one another, and, in fact, often coincidental. It is this fortuitous situation which makes it possible to apply seismological methods in petroleum exploration.
It is conceivable that, with the data of sufficiently high precision and of the proper type and with the application of the appropriate mathematical procedures, a complete delineation of the subsurface bedding--seismically considered-could be accomplished. It is doubtful whether precision of this degree in our data could ever be attained.
Figures & Tables
Lessons in Seismic Computing
“An elementary text and problem book containing 44 lessons in seismology arranged for selection or combination to cover the normal 36-week course, or for condensation into an 18-week course. The lessons begin without assuming more than secondary school mathematics. An elementary knowledge of calculus is desirable, though not required, for the last half of the book.”