Estimation of long-wavelength near-surface velocity and low-relief structural anomalies Part 2: A new near surface reconstruction method

Dan Kosloff*, Peter I. Pecholcs, Uri I. Zackhem, Zvi Koren

*Corresponding author for this work

Research output: Contribution to conferencePaperpeer-review

Abstract

In certain situations, velocity or structure anomalies in the near surface can cause a distortion in the structural interpretation of the deeper horizons. We present a tomographic approach, which tackles this problem by creating a detailed near surface depth-velocity model. The procedure uses three types of data; namely prestack depth migrated gathers, refraction delay times and refractor velocities, and zero offset travel times. The method is evaluated through tests on a synthetic data set where different combinations of input data are used. Results indicate that when all types of data are available, it is possible to resolve both the velocity and structure of the near surface horizons.

Original languageEnglish
Pages1063-1065
Number of pages3
DOIs
StatePublished - 1997
Externally publishedYes
Event1997 Society of Exploration Geophysicists Annual Meeting, SEG 1997 - Dallas, United States
Duration: 2 Nov 19977 Nov 1997

Conference

Conference1997 Society of Exploration Geophysicists Annual Meeting, SEG 1997
Country/TerritoryUnited States
CityDallas
Period2/11/977/11/97

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