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 1960ís at the Fordoche Oil Field in Lottie, Louisiana, as evaporation pits for oil well produced brines. The pits were closed and completed in the 1980ís. 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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