Characterization of reservoir rocks and fluids by surface electromagnetic transient methods
- Blackhawk Geosciences, Inc., Golden, CO (United States)
- Interpex Ltd., Golden, CO (United States)
- James Consulting Services, Inc., Lakewood, CO (United States)
The objectives of this research were to improve the interpretations of transient electromagnetic (TEM) measurements over two-dimensional subsurface structures. TEM is a surface electromagnetic method employed in fossil energy reservoir exploration and characterization. Electrical measurements find application in (i) assisting in fossil energy exploration mainly in areas where seismic methods yield inadequate data quality, such as volcanic covered terrain, permafrost areas, and the Rocky Mountain Overthrust; (ii) mapping contacts between hydrocarbon and brines in shallow producing horizon, and (iii) in monitoring enhanced oil recovery processes which cause zones of lower resistivity. The work under this contract consisted of three tasks: (1) Selection of a test site and acquisition of a high density, 3-component data set over the test site; (2) development of finite element modeling algorithms for computing 3-D EM fields over 2-D EM fields over 2-D subsurface structures; and development of TEM 2-D subsurface imaging method. Accomplishments for this period are described.
- Research Organization:
- Blackhawk Geosciences, Inc., Golden, CO (United States); Interpex Ltd., Golden, CO (United States); James Consulting Services, Inc., Lakewood, CO (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC22-90BC14476
- OSTI ID:
- 10192984
- Report Number(s):
- DOE/BC/14476-T1; ON: DE94002429; BR: AC0530000/AC0535000
- Resource Relation:
- Other Information: PBD: 17 Jul 1992
- Country of Publication:
- United States
- Language:
- English
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58 GEOSCIENCES
RESERVOIR ROCK
ELECTROMAGNETIC SURVEYS
EXPLORATION
NEVADA
MATHEMATICAL MODELS
FINITE ELEMENT METHOD
TRANSIENTS
TWO-DIMENSIONAL CALCULATIONS
ALGORITHMS
ENHANCED RECOVERY
MONITORING
EXPERIMENTAL DATA
PROGRESS REPORT
020200
020300
580000
RESERVES, GEOLOGY, AND EXPLORATION
DRILLING AND PRODUCTION
GEOSCIENCES