Seismic inversion of the Tertiary reservoir in the Southeastern part of Lake Maracaibo, Venezuela
- Maraven S.A., Caracas (Venezuela)
Seismic inversion has been tested previously in the Lake Maracaibo area by the Maraven Exploration and is now being applied by the production group. Area 8, in the southeastern part of the Ceuta Field, was selected for the inversion study to improve the parameters for the planned waterflood project. The reservoir is located in a monoclinal fault block bounded by north dipping east-west normal faults and the Ceuta High Structure to the west. The producing zones, Eocene Misoa Formation Sands B and C, appear to have stratigraphic limits which this study was undertaken to define and characterize. The methodology consists of two parts; acoustic petrophysics and seismic inversion. The results are integrated in order to produce the final qualitative and quantitative reservoir model. In the acoustic petrophysics section, the impedance computed from the well logs is compared with known petrophysical properties. The derived relationships are used for petrophysical predictions and their quantitizication by transfer functions. In the seismic inversion section, seismic data were inverted via a forward modeling technique with constraining parameters derived from wells. The resulting seismic acoustic impedance was tested and calibrated to well data. The impedance displays, generated for a grid of seismic lines, were interpreted for stratigraphic definition and, in the reservoir zone, converted to selected petrophysical parameters. These parameters were mapped, resulting in reservoir models that can be used for the waterflood planning.
- OSTI ID:
- 6104984
- Report Number(s):
- CONF-930306-; CODEN: AABUD2
- Journal Information:
- AAPG Bulletin (American Association of Petroleum Geologists); (United States), Vol. 77:2; Conference: International congress of the American Association of Petroleum Geologists (AAPG), Caracas (Venezuela), 14-17 Mar 1993; ISSN 0149-1423
- Country of Publication:
- United States
- Language:
- English
Similar Records
Sequence stratigraphy of the Misoa Formation (Eocene) Lake Maracaibo, Venezuela
Application of azimuthal resistivity images to identify pay zones in highly shale laminated sands of the upper C eocene reservoir of Ceuta field in Lake Maracaibo, Venezuela
Related Subjects
ACOUSTIC DETECTION
TECHNOLOGY ASSESSMENT
GEOLOGIC STRATA
LIMITING VALUES
RESERVOIR ROCK
GEOLOGIC MODELS
VENEZUELA
OIL FIELDS
ENHANCED RECOVERY
GEOLOGIC FAULTS
MEASURING METHODS
SEISMIC SURVEYS
WATERFLOODING
WELL STIMULATION
ACOUSTIC MEASUREMENTS
CHARGED PARTICLE DETECTION
DETECTION
DEVELOPING COUNTRIES
FLUID INJECTION
GEOLOGIC DEPOSITS
GEOLOGIC FRACTURES
GEOLOGIC STRUCTURES
GEOPHYSICAL SURVEYS
LATIN AMERICA
MINERAL RESOURCES
PETROLEUM DEPOSITS
RADIATION DETECTION
RESOURCES
SOUTH AMERICA
STIMULATION
SURVEYS
020200* - Petroleum- Reserves
Geology
& Exploration