Volume 3: Characterization of representative reservoirs -- South Marsh Island 73, B35K and B65G Reservoirs
- BDM-Oklahoma, Inc., Bartlesville, OK (United States)
- Louisiana State Univ., Baton Rouge, LA (United States). Dept. of Petroleum Engineering
- Mathematical and Computer Services, Inc., Danville, VA (United States)
This report documents the results of a detailed study of two Gulf of Mexico salt dome related reservoirs and the application of a publicly available PC-based black oil simulator to model the performances of gas injection processes to recover attic oil. The overall objective of the research project is to assess the oil reserve potential that could result from the application of proven technologies to recover bypassed oil from reservoirs surrounding piercement salt domes in the Gulf of Mexico. The specific study objective was to simulate the primary recovery and attic gas injection performance of the two subject reservoirs to: (1) validate the BOAST model; (2) quantify the attic volume; and (3) predict the attic oil recovery potential that could result from additional updip gas injection. The simulation studies were performed on the B-35K Reservoir and the B-65G Reservoir in the South Marsh Island Block 73 Field using data provided by one of the field operators. A modified PC-version of the BOAST II model was used to match the production and injection performances of these reservoirs in which numerous gas injection cycles had been conducted to recover attic oil. The historical performances of the gas injection cycles performed on both the B-35K Reservoir and B-65G Reservoir were accurately matched, and numerous predictive runs were made to define additional potential for attic oil recovery using gas injection. Predictive sensitivities were conducted to examine the impact of gas injection rate, injection volume, post-injection shut-in time, and the staging of gas injection cycles on oil recovery.
- Research Organization:
- Louisiana State Univ., Dept. of Petroleum Engineering, Baton Rouge, LA (United States); BDM-Oklahoma, Inc., Bartlesville, OK (United States)
- Sponsoring Organization:
- USDOE Assistant Secretary for Fossil Energy, Washington, DC (United States)
- DOE Contract Number:
- AC22-92BC14831
- OSTI ID:
- 661389
- Report Number(s):
- DOE/BC/14831--19-Vol.3; ON: DE98003900
- Country of Publication:
- United States
- Language:
- English
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