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TerraSpark Geosciences

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Dorn G.A.,TerraSpark Geosciences
First Break | Year: 2011

A Domain Transformation process has been developed to remove all structural effects in three dimensions from 3D seismic volumes. This interpretation-guided process improves upon previous technologies (e.g., horizon slicing and proportional slicing) by removing the full range of possible sources of structural deformation, regardless of how structural elements may be combined in a given seismic volume. By removing fault displacement in 3D, stratal volumes are created where there are no gaps associated with faults, as is the case for the vertical trace shifting and vertical trace interpolation of previous techniques. The Domain Transform not only allows substantially improved imaging of depositional systems for rapid identification and interpretation, it also enables a number of new workflows that could improve the efficiency and effectiveness of 3D seismic exploration and development. These workflows provide a unique way in which to integrate structural and stratigraphic interpretation so that each step provides an opportunity to Q/C, correct and improve interpretation in the other steps.


Kadlec B.J.,TerraSpark Geosciences | Dorn G.A.,TerraSpark Geosciences
Leading Edge (Tulsa, OK) | Year: 2010

This article discusses the emergence of general computation on the graphics processing unit (GPGPU) as a powerful tool for enabling true interactive 3D seismic interpretation such that geologic features are computed, mapped, and visualized in real time. We review previous work in GPU-based methods for both prestack data and migrated volumes, but we will focus on techniques that facilitate interactive and real-time interpretation of migrated seismic volumes. The field of GPGPU technology is changing rapidly with updates frequently occurring at six-month cycles, and often bring major changes to processor architecture and programmability. In this article we provide readers with an overview of the current state of GPGPU, work being done in our industry, and discuss the greater implications these changes may have in seismic volume interpretation. We will address the unique computational challenges as well as the significant gains that can be achieved by computing on low-cost commodity GPUs. © 2010 Society of Exploration Geophysicists.


Patent
TerraSpark Geosciences | Date: 2010-05-03

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. 24a, b and c, an exemplary seismic volume before Domain Transformation is presented in FIG. 24a, interpreted horizons and faults used in the transformation are presented in FIG. 24b, and the Domain Transformed stratal-slice volume is presented in FIG. 24c. The input seismic volume in FIG. 24a has deformations associated with syn- and post-depositional faulting. The output Domain Transformed volume (FIG. 24c) is substantially free of deformations.


Patent
TerraSpark Geosciences | Date: 2010-05-03

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. 24a, b and c, an exemplary seismic volume before Domain Transformation is presented in FIG. 24a, interpreted horizons and faults used in the transformation are presented in FIG. 24b, and the Domain Transformed stratal-slice volume is presented in FIG. 24c. The input seismic volume in FIG. 24a has deformations associated with syn- and post-depositional faulting. The output Domain Transformed volume (FIG. 24c) is substantially free of deformations.


Patent
TerraSpark Geosciences | Date: 2011-11-21

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. 24a, b and c, an exemplary seismic volume before Domain Transformation is presented in FIG. 24a, interpreted horizons and faults used in the transformation are presented in FIG. 24b, and the Domain Transformed stratal-slice volume is presented in FIG. 24c. The input seismic volume in FIG. 24a has deformations associated with syn- and post-depositional faulting. The output Domain Transformed volume (FIG. 24c) is substantially free of deformations.


Patent
TerraSpark Geosciences | Date: 2010-05-03

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. 24a, b and c, an exemplary seismic volume before Domain Transformation is presented in FIG. 24a, interpreted horizons and faults used in the transformation are presented in FIG. 24b, and the Domain Transformed stratal-slice volume is presented in FIG. 24c. The input seismic volume in FIG. 24a has deformations associated with syn- and post-depositional faulting. The output Domain Transformed volume (FIG. 24c) is substantially free of deformations.


Patent
TerraSpark Geosciences | Date: 2011-12-14

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. An input seismic volume has deformations associated with syn- and post-depositional faulting. The output Domain Transformed volume is substantially free of deformations.


Patent
TerraSpark Geosciences | Date: 2011-10-05

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. 24a, b and c, an exemplary seismic volume before Domain Transformation is presented in Fig. 24a, interpreted horizons and faults used in the transformation are presented in Fig. 24b, and the Domain Transformed stratal-slice volume is presented in Fig. 24c. The input seismic volume in Fig. 24a has deformations associated with syn- and post-depositional faulting. The output Domain Transformed volume (Fig. 24c) is substantially free of deformations.


Patent
TerraSpark Geosciences | Date: 2013-08-07

A suite of processes and tools for preprocessing data prior to seismic interpretation including: voxel connectivity mapping, seismic response reduction, voxel suppression and voxel density. Voxel connectivity is used to assist with removing insignificant data. Seismic response reduction is used to reduce the seismic response of a given reflector to a lobe, such as a main lobe. Voxel suppression assists with highlighting and enhancing lithologic boundaries to aid in human and computer-aided interpretation. Voxel density scores the local significance of data trends within a volume, such as a 3-D seismic volume, to assist with the enhancement of these trends.


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