In 1994, two exploration wells were drilled consecutively to explore for gas prospectivity in Lang Lebah, a Miocene carbonate buildup in the geologic province of Central Luconia located in the Sarawak Basin in Malaysia. High overpressure and operational problems prevented both wells from fully evaluating the target. Postdrill analysis concluded that Lang Lebah has limited potential due to poor reservoir quality, small gas column, and challenging drilling conditions. Due to these reasons, it was left dormant for 25 years. In 2016, new 3D broadband seismic acquisition and megamerge reprocessing of 3D seismic data sets followed by an integrated application of multidisciplinary workflows successfully derisked key petroleum system elements of the Lang Lebah structure, yielding a more optimistic view of its potential. A new well was justified at Lang Lebah and resulted in one of the major gas discoveries of 2019.
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SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy
September 26–October 1, 2021
Denver, Colorado, USA and online
Paper Contents
Unravelling an abandoned giant in Central Luconia Province, offshore Sarawak, Malaysia — Success story of Lang Lebah
Aqilah Amir Jamalullail;
Aqilah Amir Jamalullail
PETRONAS Carigali
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Nik Ruzaimi Akmal Nik Ruhadi;
Nik Ruzaimi Akmal Nik Ruhadi
PETRONAS Carigali
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Tengku Mohd Syazwan Tengku Hassan;
Tengku Mohd Syazwan Tengku Hassan
PETRONAS Carigali
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Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, Denver, Colorado, USA and online, September 2021.
Paper Number:
SEG-2021-3582522
Published:
November 15 2021
Citation
Amir Jamalullail, Aqilah, Swee Keong, Ong, Nik Ruhadi, Nik Ruzaimi Akmal, Tengku Hassan, Tengku Mohd Syazwan, Ittharat, Detchai, Thamniyom, Phalaphoom, Thanudamrong, Suphawich, Anas, Zulkarnain, and Stanley Kampit. "Unravelling an abandoned giant in Central Luconia Province, offshore Sarawak, Malaysia — Success story of Lang Lebah." Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, Denver, Colorado, USA and online, September 2021. doi: https://doi.org/10.1190/segam2021-3582522.1
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