Terraspark Geosciences, LLC

Cgg Jason B.v.

Geoffrey A Dorn

James D Carlson

William S Hammon, Iii

William S Hammon

James A Carlson

Surface wrapping is a semi-automatic approach for segmentation of a geobody bounding surface within volumetric data. The approach is metaphorically based upon the concept of collapsing an elastic surface onto a physical object. The desired output of the process is a polygonal mesh that may be stored as data, displayed to the end user, or used in further data processing techniques. This approach has advantages over fully automated segmentation algorithms in that it may be applied to data where the volume to be segmented is not fully imaged, or where a high level of noise is present. This approach is also significantly less time consuming for the human analyst than fully manual segmentation techniques, in that the user need only define an approximate initial bounding surface prior to application of the algorithm which determines a more detailed and accurate bounding surface.

Extraction of depositional systems

A process that assists with the identification of potential hydrocarbon deposits that includes performing a structural interpretation of a three-dimensional seismic volume, transforming the three-dimensional seismic volume into a stratal-slice volume, performing a stratigraphic interpretation of the stratal-slice volume which includes the extracting of bounding surfaces and faults and transforming the stratal-slice volume into the spatial domain. As illustrated in FIGS.and, an exemplary seismic volume before Domain Transformation is presented in FIG., interpreted horizons and faults used in the transformation are presented in FIG., and the Domain Transformed stratal-slice volume is presented in FIG.. The input seismic volume in FIG.has deformations associated with syn- and post-depositional faulting. The output Domain Transformed volume (FIG.) is substantially free of deformations.

A process that assists with the identification of potential hydrocarbon deposits that includes performing a structural interpretation of a three-dimensional seismic volume, transforming the three-dimensional seismic volume into a stratal-slice volume, performing a stratigraphic interpretation of the stratal-slice volume which includes the extracting of bounding surfaces and faults and transforming the stratal-slice volume into the spatial domain. As illustrated in FIGS., b and c, an exemplary seismic volume before Domain Transformation is presented in FIG., interpreted horizons and faults used in the transformation are presented in FIG., and the Domain Transformed stratal-slice volume is presented in FIG.. The input seismic volume in FIG.has deformations associated with syn- and post-depositional faulting. The output Domain Transformed volume (FIG.) is substantially free of deformations.

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Broomfield, CO, United States of America

Geoffrey A Dorn