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Petrotech 2010 New Delhi Comparative Assessment of Deepwater Plays off India, Southeast Asia and Northwest Australia.

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Presentation on theme: "Petrotech 2010 New Delhi Comparative Assessment of Deepwater Plays off India, Southeast Asia and Northwest Australia."— Presentation transcript:

1 Petrotech 2010 New Delhi Comparative Assessment of Deepwater Plays off India, Southeast Asia and Northwest Australia

2 Present Morphology Fabric Offshore India, Southeast Asia, & Northwest Australia

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4 Deepwater Plays Offshore India India’s West Coast India’s East Coast Andaman Sea India

5 Sub-Basalt Plays Deepwater Plays India’s West Coast

6 Plate Tectonics

7 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

8 Gravity Map Trends

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10 West Indies & Maldives

11 Madagascar and the Reunion Hot-Spot, on two sides of ocean ridge triple-junction

12 WesternGeco’s Over-Under 2D Regional (2006)

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14 Top Basalt Tertiary Basin Cretaceous Basin Cretaceous Basin Sub-Basalt Challenges (Kerala-Konkan Basin, Western Offshore India)

15 Migrated CMP - Velocity Analysis Sub-Basalt Primary Getting stronger with offset

16 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

17 OU-214 Top Basalt and Sub-Basalt

18 Andaman Sea The link of India and Southeast Asia

19 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

20 Morphology off India, Southeast Asia, & Northwest Australia

21 Success Case Histories Structures North Sumatra/Andaman Sea Onshore Central Sumatra Offshore East Java Offshore North Bali

22 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

23 Inverted Structures North Bali Major Provider of Domestic Gas in Indonesia Slide 23

24 Stratigraphy West Natuna

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26 Seismic Expression - Anambas Graben

27 Makassar Strait TQ3D

28 Makassar Strait Fold-Belt Deepwater

29 Makassar Strait Deepwater Folds

30 Tectonics Philippines

31 Palawan 3D - West Linapacan

32 Instantaneous Phase Atribute

33 Gas-Water Contact

34 Palawan Basin - Malampaya Field

35 Deepwater Eastern Archipelago East Archipelago Deepwater Exploration Timor Sea Arafura Sea Northwest Australia Offshore Exploration Deepwater Offshore South Irian Jaya

36 NEPS Lines Timor Sea + Arafura Sea

37 Sabo Prospect – Timor Sea

38 Sabo Block - Timor Sea

39 Sabo Prospect Reconstruction

40 Leti and Masela Blocks

41 Leti Prospects Deepwater

42 Leti Block - Arafura Sea

43 Top Paleozoic Masela

44 Arafura Sea

45 Masela Structure - Strike

46 Irian Jaya Basins

47 Stratigraphy Salawati and Bintuni Basins

48 Irian Jaya Survey Deepwater

49 Miocene Basin and Misool High: Cretaceous over Pliocene

50 Kais Carbonate Play

51 Ultradeep-water : Jurassic Fault Bend Fold Play

52 Bintuni Bay - Jurassic Play (Wiriagar Gas Field)

53 Irian Jaya Survey Deepwater Foldbelt

54 Summary - Outlook Deepwater Plays Offshore India – Sub-Basalt Imaging Pre-Tertiary Basins Development Deepwater Plays Southeast Asia – Complex Imaging Pre-Tertiary Basins Development

55 Sub-Salt Could be Sweet R.Fainstein, 2002 Petroleum Economist

56 Deepwater Reservoirs Producing Profile


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