Characterization of reservoir rocks and fluids by surface electromagnetic transient methods. Annual report, January 1991--January 1992

Technical Report · Wed Jan 01 00:00:00 EST 1992

OSTI ID:10168902

Hoekstra, P; Blohm, M W ^[1]; Stoyer, C H ^[2]; James, B A ^[3]

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1. Blackhawk Geosciences, Inc., Golden, CO (United States)
2. Interpex Ltd. (United States)
3. James Consulting Services (United States)

The objectives of this research are 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 horizons, and (iii) in monitoring enhanced oil recovery processes which cause zones of lower resistivity. Accomplishments for this past year are presented for the following tasks: (1) site selection and acquisition of high density, 3-component TEM data set over test site; (2) finite element forward modeling; and (3) TEM 2-D subsurface imaging.

• Research Organization: Blackhawk Geosciences, Inc., Golden, CO (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC22-90BC14476
• OSTI ID: 10168902
• Report Number(s): DOE/BC/14476-11; ON: DE92018912
• Resource Relation: Other Information: PBD: Jan 1992
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
RESERVOIR ROCK
ELECTROMAGNETIC SURVEYS
PROGRESS REPORT
PETROLEUM
ENHANCED RECOVERY
MONITORING
RESERVOIR FLUIDS
DISPLACEMENT FLUIDS
SITE SELECTION
MATHEMATICAL MODELS
FINITE ELEMENT METHOD
TWO-DIMENSIONAL CALCULATIONS
ALGORITHMS
EXPERIMENTAL DATA
THEORETICAL DATA
020200
020300
RESERVES, GEOLOGY, AND EXPLORATION
DRILLING AND PRODUCTION