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U.S. Department of Energy
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Enhanced oil recovery: environmental issues and state regulatory programs

Technical Report ·
DOI:https://doi.org/10.2172/5931143· OSTI ID:5931143
Environmental assessments were prepared for nine EOR demonstration projects located in six states, and the oil regulations for all oil-producing states were reviewed. These evaluations revealed a number of potentially important environmental impacts associated with EOR, including: (1) loss of vegetation; (2) excessive air emissions from thermal operations; (3) excessive erosion and sedimentation (mostly in hilly terrain) and subsequent deterioration of surface-water quality; (4) pollution of land and surface waters from spills or leaks of oil or other chemicals; and (5) contamination of groundwater aquifers. The need for additional environmental planning and monitoring regulations specific for the oil-production industry is emphasized. States are encouraged to continue strengthening and upgrading their oil-regulatory programs to safeguard the environment. The evaluations also identified areas where additional information is needed: (1) toxicity and carcinogenicity studies of chemicals used in injection processes; (2) evaluation of groundwater monitoring methods; and (3) studies of reclamation procedures for soils contaminated by oil and brine.
Research Organization:
Oak Ridge National Lab., TN (USA)
DOE Contract Number:
W-7405-ENG-26
OSTI ID:
5931143
Report Number(s):
ORNL/TM-6943
Country of Publication:
United States
Language:
English