Accession Number : AD0289212

Title :   THEORETICAL PREDICTION OF DEEP WELL NOISE IMPROVEMENT PROPERTIES OF TYPICAL GEOLOGICAL STRUCTURES

Corporate Author : UNITED ELECTRODYNAMICS INC PASADENA CALIF

Personal Author(s) : GREER,B.J. ; FLINN,E.A. ; MORRIS,G

Report Date : 29 MAY 1962

Pagination or Media Count : 1

Abstract : The behavior with depth of compressional wave pressure for several complex multi-layered geological structures is discussed. In a previous report, an analysis was presented of the elastodynamic behavior of a stratified semi-infinite medium subject to a plane compressional wave normally incident to the layers. The source of the disturbance was located at the plane boundary between the layers and a homogeneous halfspace below. The indicial response of the system to a unit impulse source function was first obtained, and then the response to a general driving function was obtained by numerical convolution. The particular source function used was a symmetric Ricker wavelet. The analysis yields the time history of the particle velocity and stress, as functions of depth. This supplementary report illustrates the use of the reported analysis in calculating the variation of compressional wave dilatation with depth for some of the geological structures previously considered. (Author)

Descriptors :   *SEISMIC WAVES, GEOLOGY, PARTICLES, PRESSURE, SIGNAL-TO-NOISE RATIC, VELOCITY

Distribution Statement : APPROVED FOR PUBLIC RELEASE