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Book Chapter

Three-Dimensional Seismic Analysis in the Characterization of a Giant Carbonate Field, Onshore Abu Dhabi, United Arab Emirates

By
Peter Melville
Peter Melville
Abu Dhabi Company for Onshore Oil Operations (ADCO), Abu Dhabi, United Arab Emirates
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Omar Al Jeelani
Omar Al Jeelani
Abu Dhabi Company for Onshore Oil Operations (ADCO), Abu Dhabi, United Arab Emirates
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Saeed Al Menhali
Saeed Al Menhali
Abu Dhabi Company for Onshore Oil Operations (ADCO), Abu Dhabi, United Arab Emirates
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Jürgen Grötsch
Jürgen Grötsch
Abu Dhabi Company for Onshore Oil Operations (ADCO), Abu Dhabi, United Arab Emirates
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Published:
January 01, 2004

Abstract

Arecent three-dimensional (3-D) seismic data set over an onshore oil field in Abu Dhabi, United Arab Emirates, is compared to a geologic model based on more than 200 wells. This chapter analyzes the seismic character of Upper Thamama Group (Early Cretaceous, Barremian—Aptian) carbonate reservoirs and shows how, even after more than 25 years of drilling and production, 3-D seismic data have improved the understanding of the field. A discussion of acquisition and processing techniques shows the iterative improvements in the seismic data quality, particularly in multiple suppression. The seismic provides an areal view of the structure and associated faulting. Seismic attributes were used to look at the prediction of rock properties and reservoir character.

The extensive well data in the geologic model have allowed widespread comparison with the seismic predictions, and examples are highlighted, which demonstrate the similarities and differences between the two data sets.

The chapter demonstrates that, even with a high density of well data, 3-D seismic can be a complementary data set. For this field, the combination of the two data sets has allowed a better understanding of the complex wrench faulting and the behavior of the Thamama reservoir character away from the wells. Important new paleogeographic information has also been obtained from the combination of well data with the depositional geometries and patterns seen on the seismic data at Bab (Aptian age) and Asab (Late Jurassic) levels.

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Contents

AAPG Memoir

Seismic Imaging of Carbonate Reservoirs and Systems

Gregor P. Eberli
Gregor P. Eberli
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Jose Luis Masaferro
Jose Luis Masaferro
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J. F. “Rick” Sarg
J. F. “Rick” Sarg
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American Association of Petroleum Geologists
Volume
81
ISBN electronic:
9781629810058
Publication date:
January 01, 2004

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