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Book Chapter

Seismic Stratigraphy and Geomorphology of Oligocene to Miocene Carbonate Buildups, Offshore Madura, Indonesia

By
H.W. Posamentier
H.W. Posamentier
Anadarko Petroleum Company, 1201 Lake Robbins Drive, The Woodlands, TX 77380, U.S.A. Present address: Chevron Energy Technology Company 1500 Louisiana Street, Houston, TX 77002, U.S.A. e-mail: henry.posamentier@chevron.com
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Priscilla Laurin
Priscilla Laurin
Anadarko Petroleum Company, 1201 Lake Robbins Drive, The Woodlands, TX 77380, U.S.A. Present address: Max Petroleum Plc, 9 Greenway Plaza, Suite 550, Houston, TX 77046, U.S.A.
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Alex Warmath
Alex Warmath
Anadarko Petroleum Company, 1201 Lake Robbins Drive, The Woodlands, TX 77380, U.S.A. Present address: Greenfields Petroleum Corporation, 211 Highland Cross, Suite 227, Houston, TX 77073, U.S.A.
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Meirince Purnama
Meirince Purnama
Anadarko Indonesia Company, One Pacific Place Building, Level 12, Suite 1201-1206, Jl. Jend. Sudirman, Kav 52-23, Jakarta, 12190, Indonesia
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Dedan Drajat
Dedan Drajat
Anadarko Indonesia Company, One Pacific Place Building, Level 12, Suite 1201-1206, Jl. Jend. Sudirman, Kav 52-23, Jakarta, 12190, Indonesia
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Published:
January 01, 2010

Abstract

A variety of carbonate landscapes have been imaged on 3D seismic data from the offshore area north of Madura Island, Indonesia. This paper is a case study based exclusively on seismic geomorphologic and seismic stratigraphic analyses. Carbonate buildups ranging from small patch reefs to platforms with outliers, and tide influenced elongate large patch reefs are observed within the Kujung 2, Kujung 1, and Wonocolo Formations. Clastic input characterized by low-angle clinoforms from the north-northwest and ubiquitous polygonal fracturing occurred between deposition of the Kujung 1 and the Wonocolo Formations. Subsequent to Wonocolo deposition, the basin gradually became subaerially exposed and was ultimately the site of densely spaced fluvial systems.

The small patch-reef buildups of the Kujung 2 range in size from less than 120 m up to 500 m in diameter. Across the platform these buildups are closely spaced, with less than 100 m separating isolated buildups. Each buildup is circular in plan view, with vertical relief of approximately 25–40 m. Hundreds of these features are observed within the 3D seismic volume.

Larger scale patch reefs of the Kujung 1 coalesced to form a northwest-southeast-trending platform. Individual buildups within the platform range from 600 m to 2 km in diameter and from 200 to 300 m in thickness. Smaller patch reefs ranging from 60 to 120 m in diameter are observed at the tops of these buildups. Large-scale buildups form off the platform and can be up to 400 m thick with diameters from 1 to 6.5 km. The Kujung 1 reefs are circular to elliptical in planform. Anastamosing channels up to 200 m deep and 650 m wide trend normal to the platform buildup and terminate at the buildup margin.

The Woncolo carbonate buildups generally are larger than the Kujung buildups and are characterized by internal clinoform architecture. These buildups are circular to elliptical in planform and range in size from 4 to 10 km wide and up to 20 km in length. They are separated from each other by tidal channels 1.2–2.5 km wide. The buildup tops are characterized by a complex network of channels, some up to 200 m wide.

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SEPM Special Publication

Cenozoic Carbonate Systems of Australasia

William A. Morgan
William A. Morgan
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Annette D. George
Annette D. George
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Paul M. (Mitch) Harris
Paul M. (Mitch) Harris
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Julie A. Kupecz
Julie A. Kupecz
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J. F. (Rick) Sarg
J. F. (Rick) Sarg
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SEPM Society for Sedimentary Geology
Volume
95
ISBN electronic:
9781565762992
Publication date:
January 01, 2010

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