Dissertation/Thesis Abstract

Depositional Environment of the Carrizo Sandstone in Central Louisiana, Implications for Future Oil Discoveries
by Brennan, Anne C., M.S., University of Louisiana at Lafayette, 2018, 135; 13420720
Abstract (Summary)

This thesis project involves heavy investigation of the Carrizo sandstone in Northern Louisiana through previous literature and subsurface study. The Carrizo Sandstone is a prolific oil producer throughout Louisiana. Deposition of the sands occurred during Eocene time, when the earth was coming out of a rapid heating and then cooling event, known as the Paleo-Eocene Thermal Maximum. The deposition of the sandstone and subsequent sedimentary structures created allowed for numerous, yet flighty, traps for hydrocarbons. In the early Eocene, sea-level was rising, leading to deposition of shore face sands. As sea level rose, preexisting coastal environments were inundated and filled with sand. This led to the widespread deposition of the laterally continuous Carrizo sandstone in the Gulf Coast Basin as a valley fill deposit. Through well log analysis, one can determine how the coast was blanketed with sand and where there is greater potential to find stratigraphic traps, and therefore hydrocarbon accumulations, within the uppermost Wilcox sand. The findings show a resultant depositional environment which exhibits similar geometry to the Powder River Basin in Wyoming and which is therefore repeatable in the study area.

Indexing (document details)
Advisor: Kinsland, Gary L.
Commitee: Duex, Timothy W., Hillman, Aubrey
School: University of Louisiana at Lafayette
Department: Geology
School Location: United States -- Louisiana
Source: MAI 58/05M(E), Masters Abstracts International
Source Type: DISSERTATION
Subjects: Geology
Keywords:
Publication Number: 13420720
ISBN: 9781392042298
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