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Book Chapter

Depositional architectures of Recent deepwater deposits in the Kutei Basin, East Kalimantan

By
J. N. Fowler
J. N. Fowler
Eni-LASMO Indonesia, 29th Floor Ratu Plaza Office Tower, Jl Jenederal Sudirman, Jakarta, Indonesia Currently at: Eni-London Technical Exchange, Bowater House, 68 Knight sbridge, London SWIX 7BN, UK (e-mail: james.fowler@eni-lasmo.com)
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E. Guritno
E. Guritno
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P. Sherwood
P. Sherwood
Occidental Middle East Development Co., 29th Floor, Emirates Office Tower, Sheikh Zayed Road, P.O. Box 33728, Dubai, U.A.E
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M. J. Smith
M. J. Smith
Eni-LASMO Indonesia, 29th Floor Ratu Plaza Office Tower, Jl Jenederal Sudirman, Jakarta, Indonesia Currently at: Eni-London Technical Exchange, Bowater House, 68 Knight sbridge, London SWIX 7BN, UK (e-mail: james.fowler@eni-lasmo.com)
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S. Algar
S. Algar
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I. Busono
I. Busono
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G. Goffey
G. Goffey
Paladin Resources Pic, Princes House, 38 Jermyn Street, London SWIY 6DN, UK
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A. Strong
A. Strong
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Published:
January 01, 2004

Abstract

To aid exploration and appraisal of hydrocarbon discoveries in deepwater deposits of the Kutei Basin, a study of analogous sedimentary architectures in Recent deposits of the same basin was undertaken. High quality 3D seismic were used to develop an understanding of the external and internal geometry of slope to basin floor elements in a structured setting. Toe-thrust anticlines and related mud diapirs deflect slope canyons. Over slope-steps, gravity flow deposits are laterally confined with narrow facies belts. In slope mini-basins, flows are less confined resulting in deposition over a broad area. The Recent deposits of a single canyon and associated basin floor system are used to illustrate the deepwater depositional elements. Debrites at the base are followed by a slope channel complex or basin floor fan then a channel-levee complex. Large depocentres occur where gradients are low and the system switches from confined to unconfined. Erosionally confined channels feed basin floor fans at the toe-of-slope, while channels confined by levees feed fans on the ‘distal’ basin floor. Slope channel complexes and basin floor fans are interpreted to be sand prone. From the slope to basin floor these deposits increase in width:thickness ratio and areal extent and apparent lateral connectivity increases while vertical connectivity decreases.

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Contents

Geological Society, London, Memoirs

3D Seismic Technology: Application to the Exploration of Sedimentary Basins

Richard J. Davies
Richard J. Davies
Cardiff University, UK
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Joseph A. Cartwright
Joseph A. Cartwright
Cardiff University, UK
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Simon A. Stewart
Simon A. Stewart
BP, Azerbaijan
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Mark Lappin
Mark Lappin
ExxonMobil Exploration Company, USA
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John R. Underhill
John R. Underhill
The University of Edinburgh, UK
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Geological Society of London
Volume
29
ISBN electronic:
9781862394049
Publication date:
January 01, 2004

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