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U.S. Department of Energy
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Commercial scale demonstration enhanced oil recovery by micellar-polymer flood. Annual report, October 1979-September 1980

Technical Report ·
DOI:https://doi.org/10.2172/6608672· OSTI ID:6608672
This commercial scale test, known as the M-1 Project, is located in Crawford County, Illinois. It encompasses 407 acres of Robinson sand reservoir and covers portions of several waterflood projects that were approaching economic limit. The project includes 248 acres developed on a 2.4-acre five-spot pattern and 159 acres developed on a 5.0-acre five-spot pattern. Development work commenced in late 1974 and has previously been reported. Micellar solution (slug) injection was initiated on February 10, 1977, and is now completed. After 10% of a pore volume of micellar slug was injected, injection of 11% pore volume of Dow 700 Pusher polymer was conducted at a concentration of 1156 ppM. At the end of this reporting period, 625 ppM polymer was being injected into the 2.5-acre pattern and 800 ppM polymer was being injected into the 5.0-acre pattern. The oil cut of the 2.5 and 5.0-acre patterns increased from 8.6% and 5.2%, respectively in September 1979, to 11.0% and 5.9% in September 1980. The oil cut performance has consistently exceeded that predicted for the project. This Fourth Annual Report is organized under the following three Work Breakdown Structures: fluid injection; production; and performance monitoring.
Research Organization:
Marathon Oil Co., Findlay, OH (USA)
DOE Contract Number:
AC03-78ET13077
OSTI ID:
6608672
Report Number(s):
DOE/ET/13077-49
Country of Publication:
United States
Language:
English