O.T. Public Lecture: Henry Posamentier, Senior Geological Advisor with Chevron Energy Technology Company

DateFebruary 28, 2013
Time7:00 - 8:00 pm
LocationBSB D109
DescriptionHenry W. Posamentier is a Senior Geological Advisor with Chevron Energy Technology Company. He serves as a worldwide consultant to exploration teams focusing on lithofacies prediction risk issues. Before coming to Chevron, Dr. Posamentier served as Chief Geologist with Anadarko Petroleum and was a senior exploration and research advisor with ARCO and, prior to that, with Exxon production Research Company. Dr. Posamentier has published widely and his research interests have been in the fields of sequence stratigraphy and depositional systems analysis. Most recently, he has employed an interdisciplinary approach to the prediction of lithofacies distribution through time and space by integrating stratigraphy, geomorphology, and depositional systems analysis, using 3D seismic visualization integrated with borehole data. In 1971-1972, Dr. Posamentier was a Fulbright Fellow to Austria. He has served as an AAPG Distinguished Lecturer to the United States (1991-1992), an AAPG Distinguished Lecturer to the former Soviet Union (1996-1997), an AAPG Distinguished Lecturer to the Middle East (1998-1999), and an AAPG Distinguished Lecturer to Europe (2005-2006). Recently (2008), he was awarded the Pettijohn Medal for excellence in sedimentology from the Society for Sedimentary geology (SEPM), the William Smith Medal (2010) for contributions to applied and economic aspects of geology from the Geological Society of London, and the Robert Berg Award for Outstanding Petroleum Research from the AAPG (2012).

Henry's lecture is titled Remote Sensing of the Earth – Imaging Deeply Buried Depositional Features Using 3D Seismic Data and will focus on how modern 3D seismic data has revolutionized the way we explore for oil and gas. These data allow for the direct imaging of depositional elements such as channels and reefs buried deep below the earth’s surface. Once such depositional elements are recognized earth scientists can then infer the distribution of sand and shale and predict the presence or absence of reservoir rocks prior to drilling. This approach has significantly reduced uncertainties associated with lithology prediction. Through the use of high-powered workstations, earth scientists integrate interpretation of images in cross section with images in map view. In effect, this involves the joining of two disciplines: stratigraphy – the study of the architecture of geologic layers (i.e., strata) – and geomorphology – the study of landforms. Analysis of 3D seismic volumes involves workflows similar to those employed in the analysis of CAT scans and ultrasound imaging. Seismic volumes are “sliced and diced” in creative ways to bring out images of paleo-landscapes and seascapes. Numerous examples from a variety of depositional settings ranging from tropical marine reefs to continental rivers to deep-water channels will be shown.
PublisherDepartment of Geosciences
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