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Petrotech 2010 New Delhi Comparative Assessment of Deepwater Plays off India, Southeast Asia and Northwest Australia
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Present Morphology Fabric Offshore India, Southeast Asia, & Northwest Australia
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Deepwater Plays Offshore India India’s West Coast India’s East Coast Andaman Sea India
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Sub-Basalt Plays Deepwater Plays India’s West Coast
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Plate Tectonics
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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
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Gravity Map Trends
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West Indies & Maldives
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Madagascar and the Reunion Hot-Spot, on two sides of ocean ridge triple-junction
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WesternGeco’s Over-Under 2D Regional (2006)
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Top Basalt Tertiary Basin Cretaceous Basin Cretaceous Basin Sub-Basalt Challenges (Kerala-Konkan Basin, Western Offshore India)
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Migrated CMP - Velocity Analysis Sub-Basalt Primary Getting stronger with offset
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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
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OU-214 Top Basalt and Sub-Basalt
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Andaman Sea The link of India and Southeast Asia
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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
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Morphology off India, Southeast Asia, & Northwest Australia
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Success Case Histories Structures North Sumatra/Andaman Sea Onshore Central Sumatra Offshore East Java Offshore North Bali
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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
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Inverted Structures North Bali Major Provider of Domestic Gas in Indonesia Slide 23
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Stratigraphy West Natuna
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Seismic Expression - Anambas Graben
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Makassar Strait TQ3D
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Makassar Strait Fold-Belt Deepwater
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Makassar Strait Deepwater Folds
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Tectonics Philippines
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Palawan 3D - West Linapacan
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Instantaneous Phase Atribute
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Gas-Water Contact
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Palawan Basin - Malampaya Field
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Deepwater Eastern Archipelago East Archipelago Deepwater Exploration Timor Sea Arafura Sea Northwest Australia Offshore Exploration Deepwater Offshore South Irian Jaya
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NEPS Lines Timor Sea + Arafura Sea
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Sabo Prospect – Timor Sea
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Sabo Block - Timor Sea
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Sabo Prospect Reconstruction
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Leti and Masela Blocks
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Leti Prospects Deepwater
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Leti Block - Arafura Sea
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Top Paleozoic Masela
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Arafura Sea
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Masela Structure - Strike
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Irian Jaya Basins
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Stratigraphy Salawati and Bintuni Basins
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Irian Jaya Survey Deepwater
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Miocene Basin and Misool High: Cretaceous over Pliocene
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Kais Carbonate Play
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Ultradeep-water : Jurassic Fault Bend Fold Play
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Bintuni Bay - Jurassic Play (Wiriagar Gas Field)
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Irian Jaya Survey Deepwater Foldbelt
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Summary - Outlook Deepwater Plays Offshore India – Sub-Basalt Imaging Pre-Tertiary Basins Development Deepwater Plays Southeast Asia – Complex Imaging Pre-Tertiary Basins Development
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Sub-Salt Could be Sweet R.Fainstein, 2002 Petroleum Economist
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Deepwater Reservoirs Producing Profile
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