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Abstract
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Chapter from: SG
42: Applications of 3-D Seismic Data to Exploration and Production
Edited by:
Paul Weimer and Thomas L. David Author:
David W. Alexander
Published 1996 as
part of Studies in Geology 42
Copyright © 1996 The American Association of Petroleum
Geologists. All Rights Reserved.
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*Editorial Note: Page numbers in this digital version
(HTML and PDF) do not correspond to those of the hardcopy.
Otherwise, the two are the same.
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CHAPTER
22
Chapter 22: Impact
of 3-D Seismic Data on Reservoir Characterization and Development, Ghawar
Field, Saudi Arabia Saudi Arabian Oil Company, compiled
and edited
by David W. Alexander*
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Saudi
Arabian Oil Company, Impact of 3-D seismic data on reservoir characterization
and development, Ghawar Field, Saudi Arabia, in P. Weimer and T.
L. Davis, eds., AAPG Studies in Geology No. 42 and SEG Geophysical
Developments Series No. 5, AAPG/SEG, Tulsa, p. 205-210. |
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ABSTRACT
The giant Ghawar Field produces
oil from a Jurassic carbonate reservoir and is an ideal candidate for mapping
and evaluation using 3-D seismic data. 3-D seismic acquisition began over
the field in 1992 with the goal of more accurately defining reservoir structure
and identifying causes of anomalous reservoir performance. Initial data
acquisition occurred in the central 'Uthmaniyah Area of Ghawar. This area
was chosen because of a concentration of anomalous reservoir characteristics
which have combined to cause a premature advance of injection fluids into
the field. Mapping and interpretation of 3-D seismic data reveal much greater
structural complexity than was previously recognized, including extensive
faulting and fracturing. Seismic attribute data were also used to produce
an improved model of reservoir porosity and lithology. Using geostatistical
methods, 3-D seismic data were integrated with well data to produce a much
improved reservoir model for use in simulation and reservoir management. |
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