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Topseal integrity assessment using seal properties and leakage phenomena

Abstract:

We present a novel seismic interpretational workflow applied to a large gas-chimney located above the Marjoram Gas Field, offshore NW Borneo. The gas-chimney is hosted by a clay-dominated sealing sequence characterised by meter-scale silt beds. The sealing sequence is affected by a complex network of normal faults. The gas chimney, interpretable as vertical anomaly cluster, is composed of several discrete amplitude anomalies and is the result of gas leakage from the crest of a ∼500 m thick ca...

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Publication status:
Published
Peer review status:
Peer reviewed

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Institution:
University of Oxford
Division:
MPLS
Department:
Earth Sciences
Role:
Author
ORCID:
0000-0002-0360-7719
Publisher:
Elsevier
Journal:
Marine and Petroleum Geology More from this journal
Volume:
139
Article number:
105573
Publication date:
2022-02-10
Acceptance date:
2022-02-01
DOI:
ISSN:
0264-8172
Language:
English
Keywords:
Pubs id:
1237145
Local pid:
pubs:1237145
Deposit date:
2022-02-01

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