Petrotech 2010 New Delhi Comparative Assessment of Deepwater Plays off India, Southeast Asia and Northwest Australia
Present Morphology Fabric Offshore India, Southeast Asia, & Northwest Australia
Deepwater Plays Offshore India India’s West Coast India’s East Coast Andaman Sea India
Sub-Basalt Plays Deepwater Plays India’s West Coast
Plate Tectonics
Flood basalt provinces such as the Deccan Traps: Major episodes of rapid crustal growth through regional dykes The >1 km thick exposed section at Mahabaleshwar
Gravity Map Trends
West Indies & Maldives
Madagascar and the Reunion Hot-Spot, on two sides of ocean ridge triple-junction
WesternGeco’s Over-Under 2D Regional (2006)
Top Basalt Tertiary Basin Cretaceous Basin Cretaceous Basin Sub-Basalt Challenges (Kerala-Konkan Basin, Western Offshore India)
Migrated CMP - Velocity Analysis Sub-Basalt Primary Getting stronger with offset
Sub-Basalt Petroleum Systems’ Uncovering STRATIGRAPHY Upper Cretaceous Post-Rift Reservoirs Lower Cretaceous Syn-Rift Lacustrine environment Source rock potential – Coals/Shales Jurassic Break-up Unconformity STRUCTURE Structural Mapping of Key Seismic Horizons Isochrons and Isopachs – Basin Reconstruction PROSPECT EVALUATION – PETROLEUM SYSTEM Thermal Regimes - Probability of Reservoir, Seal, Source Rock, Migration, Timing of Migration/Entrapment Accumulation Size, Risk Assessment, Economics
OU-214 Top Basalt and Sub-Basalt
Andaman Sea The link of India and Southeast Asia
Plays Offshore Sunda Archipelago Western Sunda: Offshore Sumatra Natuna/South China Sea Sea Phillipines – Palawan Basin & Sulu Seas Offshore Kalimantan/Sulawesi Offshore North Madura/North Bali Eastern Sunda: Timor Sea & Arafura Sea Northwest Australia South Irian Jaya
Morphology off India, Southeast Asia, & Northwest Australia
Success Case Histories Structures North Sumatra/Andaman Sea Onshore Central Sumatra Offshore East Java Offshore North Bali
Similar Success Case in the Archipelago Back-Arc Arun Gas Field Arun Gas Field - North Sumatra, is a pinnacle reef feature originally with 10TCF of gas reserves, now under depletion, has been a major LNG export for more than four decades, main reservoir is an early Miocene rimmed platform carbonate. Slide 22
Inverted Structures North Bali Major Provider of Domestic Gas in Indonesia Slide 23
Stratigraphy West Natuna
Seismic Expression - Anambas Graben
Makassar Strait TQ3D
Makassar Strait Fold-Belt Deepwater
Makassar Strait Deepwater Folds
Tectonics Philippines
Palawan 3D - West Linapacan
Instantaneous Phase Atribute
Gas-Water Contact
Palawan Basin - Malampaya Field
Deepwater Eastern Archipelago East Archipelago Deepwater Exploration Timor Sea Arafura Sea Northwest Australia Offshore Exploration Deepwater Offshore South Irian Jaya
NEPS Lines Timor Sea + Arafura Sea
Sabo Prospect – Timor Sea
Sabo Block - Timor Sea
Sabo Prospect Reconstruction
Leti and Masela Blocks
Leti Prospects Deepwater
Leti Block - Arafura Sea
Top Paleozoic Masela
Arafura Sea
Masela Structure - Strike
Irian Jaya Basins
Stratigraphy Salawati and Bintuni Basins
Irian Jaya Survey Deepwater
Miocene Basin and Misool High: Cretaceous over Pliocene
Kais Carbonate Play
Ultradeep-water : Jurassic Fault Bend Fold Play
Bintuni Bay - Jurassic Play (Wiriagar Gas Field)
Irian Jaya Survey Deepwater Foldbelt
Summary - Outlook Deepwater Plays Offshore India – Sub-Basalt Imaging Pre-Tertiary Basins Development Deepwater Plays Southeast Asia – Complex Imaging Pre-Tertiary Basins Development
Sub-Salt Could be Sweet R.Fainstein, 2002 Petroleum Economist
Deepwater Reservoirs Producing Profile