Dissertation/Thesis Abstract

Depositional Model for the Middle Eocene Oberlin Sand in Northwest Oberlin Field and Adjacent Areas, Allen Parish, Louisiana: A Well-log and Seismic Analysis
by McVey, Timothy Keith, M.S., University of Louisiana at Lafayette, 2014, 83; 1557570
Abstract (Summary)

The depositional environment of the middle to late Eocene Oberlin sand of Northwest Oberlin Field and Pilgrim Church Field in central Allen Parish, Louisiana, was investigated. The depositional environment of the Oberlin sand has been interpreted from observations of spontaneous potential log signatures, conventional core reports, paleontological reports, shape of isochore maps, coherency extraction attribute, amplitude extraction attribute, and multiple seismic and subsurface cross sections. Focus is centered on the juxtaposition of component sand bodies and their proximity to the interdistributary and prodelta environments. Sand bodies include distributary channels, distributary mouth bars, crevasse subdeltas and shelfal bars and are interpreted to be the products of lower deltaic and shelf processes. The results of this study are based on seismic analysis, display techniques and subsurface maps calibrated to well logs, models, and recognition criteria of modern and ancient depositional environments previously described in the regional literature. The integration of all available data provides an objective and systematic approach detailing the origin, lateral extent, geometry and architecture of the Oberlin sand in the lower deltaic plain and shelf environments. The results of this study may be applicable to similar age sands on trend with the study area. Understanding of sand component types of the lower deltaic and shelf environments is vital to exploration success and development optimization of hydrocarbon bearing reservoirs.

Indexing (document details)
Advisor: Lock, Brian E.
Commitee: Duex, Timothy W., Kinsland, Gary, Richter, Carl
School: University of Louisiana at Lafayette
Department: Geology
School Location: United States -- Louisiana
Source: MAI 53/01M(E), Masters Abstracts International
Subjects: Geology, Geophysics
Keywords: Amplitude, Delta, Depositional model, Distributary mouth bar, Eocene, Subdelta
Publication Number: 1557570
ISBN: 978-1-303-95125-1
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