12. Imaging/Interpretation Frontiers
The Art of 3D Seismic Imaging for Stratigraphic Interpretation.
Gerald D. Kidd(1), Gioconda Montilla(1) and Angel Gonzalez(2)
(1) GDK Consulting C.A. , Venezuela. (2) PDVSA, Venezuela.
Abstract
Seismic volume interpretation in general require three important interrelated steps; pattern recognition, volume imaging and interpretation. This paper focuses on these three steps, specifically, on the methods used to improve interpreters understanding, skills and overall workflow. Stratigraphic pattern recognition and interpretation skills are improved by studying numerous photographs of surface micro depositional systems that typically cover an area of several square meters. Examples of detailed photographs and their interpretation show important sedimentary relationships between internal and external geometries and the dynamics of depositional processes of entire systems. The process of seismic stratigraphic volume imaging is discussed. Volume imaging is based on applying customized transparency filters, balanced with other visualization parameters to produce enhanced 3D images of subsurface stratigraphic features. Important relationships between 3D seismic data, visualization parameters and geologic objectives are discussed which contribute to imaging workflows. Procedures of imaging subtle features are emphasized that often make significant impact on interpretations. Example of a stratigraphic volume visualization from Eastern Venezuela is shown.
Last modified: Thu May 25 10:01:46 2006