NIGERIAN JOURNAL OF SCIENCE AND ENVIRONMENT
Journal of the Faculties of Science and Agriculture, Delta State University, Abraka, Nigeria

ISSN: 1119-9008
DOI: 10.5987/UJ-NJSE
Email: njse@universityjournals.org

FAULT SLICING IN THE INTERPRETATION OF FAULTS IN SEISMIC DATA PROCESSING IN ATALA PROSPECT OF RIVER STATE, NIGERIA

DOI: 10.5987/UJ-NJSE.16.047.1   |   Article Number: 6A046F10   |   Vol.11 (1) - September 2012

Author:  Egbai J.C

Keywords: Faults, fault slicing, Seismic data, fault plane, growth fault, splinter faults.

ABSTRACT

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Faults are of high interest in petroleum development and production because they segment a reservoir. As a result of the role faults play in the entrapment of hydrocarbons, the techniques for finding and mapping them have considerable practical importance. A fault slice is a section sliced from a 3 – D data volume parallel to the interpreted position of a fault plane and can be used in several ways for the study of faults. The tracking of horizons on fault slices provides a map of fault thrown. Since a fault slice is found within one fault block, it becomes necessary in the study of growth in that block. There exist splinter faults that cause a lot of difficulty in horizon tracking because the data under study experiences small throw faults of limited laterial extent spawned by the major growth faults or parent fault. These splinter faults are secondary faults caused by movement on parent fault. A lot of Splinter faults were identified in the area of study and the azimuths of the Splinter faults relative to the parent fault are fairly constant.

Brown, A.R., Edwards, G.S. and Howard,

R.E. (1987) Fault slicing – A new approach

to the interpretation of fault

detail. Geophysics 52 (10): 1319-1327.

Brown, A.R., Dahm, C.O. and Graebner,

R.J. (1981). Stratigraphic case history

using three-dimensional seismic data

in the Gulf of the Thailand. Geophysical

Prospecting 29: 327 – 349.

Dobrin, M.B. (1976) Introduction to Geophysical

prospecting (third edition),

McGrall Hill, New York.

Egbai, J.C. and Ekpekpo, A. (2003). Migration

velocity analysis by Fourier transform

in seismic data processing. Journal

of Nigerian Association of Mathematical

Physics 7: 147-154.

Horvath, P.S. (1985) The effectiveness of

offshore three-dimensional seismic

surveys – case histories. Geophysics

50: 2411-2430.

Sheriff, R.E. (1990). Encyclopedic dictionary

of exploration Geophysics, third edition.

Pub. By Society of Exploration

Geophysicists (SEG), Tulsa, Oklahoma.