Microbial-enhanced waterflood field experiment
A microbial-enhanced waterflood field project sponsored by the US Department of Energy (DOE), Microbial Systems Corp. (MSC), and INJECTECH, Inc., and being conducted in cooperation with the National Institute for Petroleum and Energy Research (NIPER) was initiated in October of 1986. The purpose of the project was to determine if injection of a microbial formulation could increase oil production in a mature waterflood. The site selected for the project is in the Mink Unit of the Delaware-Childers field in Nowata County, Oklahoma. The pilot area consists of four adjacent inverted five-spot patterns drilled on five-acre spacing. Baseline monitoring was conducted to establish pretest conditions from October 28, 1986, to March 17, 1987. Fluid samples were collected on a weekly basis from producing wells and analyzed for microbial populations, total dissolved solids (TDS), trace mineral analyses, pH, and oil viscosities. Other parameters measured included total oil production (Mink unit); total water production (Mink unit); injection well pressures and fluid rates from each well; and water-oil ratio from each well. Laboratory studies were conducted to screen microbes for the test. Several different microbial formulations were tested in Berea sandstone cores with Mink Unit water and crude oil to determine oil recovery efficiency. A core from the Delaware-Childers field was flooded with the microbial formulation selected for the project. The microbial system recovered 28% of the residual crude oil remaining in the core after waterflooding.
- Research Organization:
- National Inst. for Petroleum and Energy Research, Bartlesville, OK (USA)
- DOE Contract Number:
- FC22-83FE60149
- OSTI ID:
- 6805177
- Report Number(s):
- NIPER-356; ON: DE89000718
- Resource Relation:
- Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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Microbial-enhanced waterflooding; Mink Unit project--
Investigations of mechanisms of microbial enhanced oil recovery by microbes and their metabolic products
Related Subjects
59 BASIC BIOLOGICAL SCIENCES
OIL WELLS
INJECTION
PRODUCTION
OPTIMIZATION
DATA BASE MANAGEMENT
FIELD TESTS
MICROBIAL EOR
OKLAHOMA
WATERFLOODING
ENHANCED RECOVERY
FEDERAL REGION VI
FLUID INJECTION
INTAKE
MANAGEMENT
NORTH AMERICA
RECOVERY
TESTING
USA
WELLS
020300* - Petroleum- Drilling & Production
550700 - Microbiology