--> ABSTRACT: Rapid Structural Interpretation Utilizing Newly Developed Seismic Attributes: Interpretation Methodology and Workflows, by Lacazette, Alfred, Kurt J. Marfurt, Charles. H. Blumentritt, Isabel C. Serrano; #90026 (2004)
[First Hit]

Datapages, Inc.Print this page

Lacazette, Alfred1, Kurt J. Marfurt2, Charles. H. Blumentritt2, Isabel C. Serrano2 
(1) Consulting Geologist, Houston, TX 
(2) University of Houston, Houston, TX

ABSTRACT: Rapid Structural Interpretation Utilizing Newly Developed Previous HitSeismicNext Hit Previous HitAttributesNext Hit: Interpretation Methodology and Workflows

New Previous HitseismicNext Hit Previous HitattributesNext Hit developed recently (some only weeks before this submission) at the University of Houston directly reveal geologic structure and sharply image subtle structures at and below the normal limits of Previous HitseismicNext Hit resolution. This presentation briefly describes many of the new Previous HitattributesNext Hit, shows how they are used to rapidly interpret geologic structure, and discusses workflows for rapid, multi-attribute based structural interpretation. Numerous images and structural interpretations are provided using 3D data sets from the Permian and Ft. Worth basins in Texas. The Previous HitattributesNext Hit are based on a new method of vector dip computation by volumetric coherent energy correlation. Computed Previous HitattributesNext Hit include: structural dip, various types of curvature including Gaussian curvature, and curl. Amplitude gradients computed relative to the structural dip and in other orientations are another new attribute with application to both structural and subseismic fracture interpretation. These Previous HitattributesNext Hit are used together with standard Previous HitseismicNext Hit data and Previous HitattributesNext Hit such as acoustic impedence. Multiple Previous HitattributesNext Hit can be combined to generate false-color volumes, maps, slices, and horizon images using methods similar to those applied to multichannel remote-sensing data. Such images directly reveal structural dip, dip changes, and curvature and sharply define structural dip-domains. Subtle faults and even joints not visible in standard Previous HitseismicTop data are sharply imaged allowing the kind of deterministic brittle-fabric interpretation normally done in outcrops, e.g. fault-slip sense determination from damage-zone features. Such direct structural imaging permits short-cuts across traditional workflows and provides valuable constraints on horizon/stratigraphic interpretations and correlations.

 

AAPG Search and Discovery Article #90026©2004 AAPG Annual Meeting, Dallas, Texas, April 18-21, 2004.