Title page for ETD etd-03072010-213744

Type of Document

Master's Thesis

Author

Smith, Matthew C.

Author's Email Address

msmi135@lsu.edu

URN

etd-03072010-213744

Title

Delineation of a Produced Water Plume in Pointe Coupee Parish, Louisiana

Degree

Master of Science (M.S.)

Department

Geology & Geophysics

Advisory Committee

Advisor Name	Title
Dr. Jeffrey Nunn	Committee Chair
Dr. Alex Webb	Committee Member
Dr. Brooks Ellwood	Committee Member

Keywords

burials
graves
geophysics

Date of Defense

2009-11-09

Availability

unrestricted

Abstract

Three pits were excavated in the 1960’s at the Fordoche Oil Field in Lottie, Louisiana, as evaporation pits for oil well produced brines. The pits were closed and completed in the 1980’s. Previous studies indicate that produced water has leached into the subsurface within the area to the south and southeast of the pits. Ground penetrating radar (GPR) was utilized in an attempt to delineate the present location of the plume as well as test the feasibility of GPR within a clayey soil in south Louisiana. In addition to collection of GPR data, electrical conductivity logs and soil cores (including core sampling for sediment classification and chloride analysis) were collected. Electrical logs confirmed the presence of permeable zones interlaying impermeable zones. Core sampling for chloride confirmed the presence of the produced water within the study area. GPR was unsuccessful in delineating the plume at the site because of the high conductivity of the shallow sediments which inhibited penetration of radar waves. Calibration GPR studies were completed at grave sites in north and south Louisiana which proved successful due to favorable conditions.

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