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U.S. Department of Energy
Office of Scientific and Technical Information

Assist in the recovery of bypassed oil from reservoirs in the Gulf of Mexico. Annual summary report, February 18, 1993--February 18, 1994

Technical Report ·
DOI:https://doi.org/10.2172/10160673· OSTI ID:10160673
The objective of this research is to assist the recovery of non-contacted oil from known reservoirs on the outer Continental Shelf in the Gulf of Mexico. Thus far, research has consisted of data collection from Minerals Management Service (MMS), literature and operators; detailed studies of several screened reservoirs; modification of three public domain simulators; development of a predictive model; and design and construction of several laboratory experiments for studying attic oil recovery. The methodology for data collection from MMS, literature and operators is keyed on 208 sands containing 1,289 reservoirs, representing 60% of the original oil in place (OOIP) in the Gulf of Mexico. This data collection has been completed. Secondary recovery by downdip gas injection in steeply dipping oil reservoirs has been widely used successfully since the 1950`s. Methane and nitrogen have been the primary gases used. Reservoirs which had been subjected to this type of recovery or had the potential to be subjected to this type of recovery were screened for detailed studies. Three reservoirs were identified which possessed the proper criteria and which had data available for detailed studies. Detailed data sets for simulating these reservoirs were created. History matching and prediction runs have been completed. Modifications on three public domain computer reservoir simulators, BOAST II mainframe, BOAST II PC and MASTER, were underway. Laboratory investigations continued but were slowed by several unforeseen incidences involving broken apparatus and inability to receive parts due to the California earthquake.
Research Organization:
Louisiana State Univ., Baton Rouge, LA (United States). Dept. of Petroleum Engineering
Sponsoring Organization:
USDOE, Washington, DC (United States)
DOE Contract Number:
AC22-92BC14831
OSTI ID:
10160673
Report Number(s):
DOE/BC/14831--8; ON: DE94013953; BR: AC1510100
Country of Publication:
United States
Language:
English