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  1.  9
    Application of Instantaneous-Frequency Attribute and Gamma-Ray Wireline Logs in the Delineation of Lithology in Serbin Field, Southeast Texas: A Case Study.Osareni C. Ogiesoba, William A. Ambrose & Robert G. Loucks - 2018 - Interpretation: SEG 6 (4):T1023-T1043.
    Although Serbin field in Southeast Texas was discovered in 1987, lithologic and petrophysical properties in the southeastern part of the field have not been fully evaluated. We have generated instantaneous frequency from 3D seismic data and predicted gamma-ray response volume from seismic attributes. By extracting maps of the instantaneous frequency and gamma-ray response along interpreted horizons, and crossplotting the instantaneous frequency against gamma-ray logs and integrating core data, we generated lithology maps to identify shale-prone zones that stratigraphically trapped hydrocarbons in (...)
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  2.  18
    Seismic Multiattribute Analysis for Shale Gas/Oil Within the Austin Chalk and Eagle Ford Shale in a Submarine Volcanic Terrain, Maverick Basin, South Texas.Osareni C. Ogiesoba & Ray Eastwood - 2013 - Interpretation: SEG 1 (2):SB61-SB83.
    We conducted seismic multiattribute analysis by combining seismic data with wireline logs to determine hydrocarbon sweet spots and predict resistivity distribution within the Austin Chalk and Eagle Ford Shale in South Texas. Our investigations found that hydrocarbon sweet spots are characterized by high resistivity, high total organic carbon, high acoustic impedance, and low bulk volume water, suggesting that a combination of these log properties is required to identify sweet spots. Although the lower Austin Chalk and upper and lower Eagle Ford (...)
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  3.  8
    Diffraction Imaging of Polygonal Faults Within a Submarine Volcanic Terrain, Maverick Basin, South Texas.Osareni C. Ogiesoba, Alexander Klokov & Rodolfo Hernandez - 2015 - Interpretation: SEG 3 (1):SF81-SF99.
    Polygonal fault systems are common structural features of intracratonic continental margins. The map-view geometry of these faults became apparent with the use of powerful fault-imaging seismic attributes, such as coherence and curvature. However, these attributes lack the amplitude information necessary for lithological evaluation. We developed a 3D diffraction volume that not only imaged faults but also contained amplitude information. From the unmigrated stack volume, we extracted diffractions that were transformed into amplitude envelope and root-mean-square amplitude volumes. These attributes, together with (...)
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  4.  5
    Diapiric Shale and Coast-Perpendicular, Fault-Related Subbasins, South Texas Gulf Coast.Osareni C. Ogiesoba & Rodolfo Hernandez - 2015 - Interpretation: SEG 3 (2):T43-T56.
    Coast-perpendicular shale ridges are rare structural features worldwide, and their origin remains a subject of debate. We studied some coast-perpendicular shale ridges and faults within a minibasin located onshore in Refugio County in the Texas Gulf Coast. We used 3D seismic data, visualization tools, and seismic attributes to examine the geometry of coast-perpendicular diapiric structures associated subbasins and faults, and coast-parallel listric faults. Our results indicated that the minibasin is subdivided into four SBs by five diapiric shale ridges that intrude (...)
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  5.  10
    Correlation Between Seismic Diffractions Extracted From Vertical Seismic Profiling Data and Borehole Logging in a Carbonate Environment.Alexander Klokov, Damir Irkabaev, Osareni C. Ogiesoba & Nail Munasypov - 2015 - Interpretation: SEG 3 (2):T121-T129.
    Seismic diffractions may play an important role in seismic interpretation because they characterize geologic objects that might not be visible for conventional seismic attribute analysis. Diffractivity may be caused by, and consequently may define, tectonic dislocations, lithologic variations, and fluid saturation within rocks. We have tied seismic diffractions extracted from vertical seismic profiling data and borehole logging, from which we recognized the reasons that were responsible for diffractivity of the strata. First, we processed a multisource multicomponent VSP data set to (...)
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    Application of Thin-Bed Indicator and Sweetness Attribute in the Evaluation of Sediment Composition and Depositional Geometry in Coast-Perpendicular Subbasins, South Texas Gulf Coast.Osareni C. Ogiesoba - 2017 - Interpretation: SEG 5 (1):T87-T105.
    My focus of study is the nature of sediments within late Eocene to middle Oligocene, coast-perpendicular subbasins located on the southwest side of the San Marcos Arch in Refugio County, near the South Texas Gulf Coast. Methods of investigation consist of 3D seismic interpretation, seismic attribute, and isochron mapping. Depositional geometry, inferred sediment composition, and bed-thickness data are examined by extraction of amplitude-envelope, sweetness, and thin-bed-indicator attributes from the 3D seismic volume. Four subbasins, numbered SB1 through SB4 from northeast to (...)
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  7.  8
    Investigation of Seismic Attributes, Depositional Environments, and Hydrocarbon Sweet-Spot Distribution in the Serbin Field, Taylor Formation, Southeast Texas.Osareni C. Ogiesoba, William A. Ambrose & Robert G. Loucks - 2019 - Interpretation 7 (1):T49-T66.
    We have conducted seismic-attribute analysis at the Serbin field — in an area straddling Lee, Fayette, and Bastrop Counties and covering approximately [Formula: see text] — using new, reprocessed, 3D seismic data to provide additional understanding of depositional environments and better predict the distribution of hydrocarbon sweet spots. We converted the 3D seismic volume into a log-lithology volume and integrated core data to examine the distribution of lithology and interpret depositional environments. By conducting multiattribute analysis, we predicted resistivity volume and (...)
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  8.  9
    Investigation of Seismic Attributes, Depositional Environments, and Hydrocarbon Sweet-Spot Distribution in the Serbin Field, Taylor Formation, Southeast Texas.Osareni C. Ogiesoba, William A. Ambrose & Robert G. Loucks - 2019 - Interpretation: SEG 7 (1):T49-T66.
    We have conducted seismic-attribute analysis at the Serbin field — in an area straddling Lee, Fayette, and Bastrop Counties and covering approximately [Formula: see text] — using new, reprocessed, 3D seismic data to provide additional understanding of depositional environments and better predict the distribution of hydrocarbon sweet spots. We converted the 3D seismic volume into a log-lithology volume and integrated core data to examine the distribution of lithology and interpret depositional environments. By conducting multiattribute analysis, we predicted resistivity volume and (...)
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