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GEOLOGIA DO TIMOR 3
 

GEOLOGIA DO TIMOR 3

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    GEOLOGIA DO TIMOR 3 GEOLOGIA DO TIMOR 3 Presentation Transcript

    • Technical Overview - JPDA Nick Kyranis Managing Director –Technical Timor Sea Designated Authority
    • Contents • Historic & Future Technical Activity • Synopsis – Exploration & Development • Summary of Exploration Activities • Summary of Development Activities • JPDA 06-101, 06-102, 06-103, 06-104 • JPDA Data Availability
    • Historic & Future Technical Activity • Prior to 1991 Seismic reconnaissance and one well drilled • Under previous Treaty arrangements 1991- 2003 – 50,000+/- kms of 2D and 3500 sq-kms of 3D – 46 wells drilled JPDA wells & fields • 9 significant discoveries, three oilfields had produced 28 MMBO, and development of a major gas recycling project was well advanced • 28 recorded gas and/or oil shows • 9 dry holes
    • Historic & Future Technical Activity • Following entry into force of the TST in April 2003 – Drilled one exploration well – Acquired 500 km of 2D Seismic data – Bayu-Undan Project “Development Drilling” completed – Bayu-Undan Project facilities commissioned and production commenced – From April 2003 to mid-August 2005, 38+/- million barrels of liquids produced and sold from all fields – Bayu-Undan to Darwin LNG pipeline commissioned – Construction of Darwin LNG plant commenced (near completion)
    • Historic & Future Technical Activity • The Road Ahead? – PMC and PSC documents now in place allowing more operational certainty. – The TSDA has been able to release acreage that has been fallow for several years. – Development of past discoveries more likely to progress – Additional infrastructure and buoyant markets will lead to more seismic and drilling activity to take advantage of synergetic opportunities.
    • Contents • Historic & Future Technical Activity • Synopsis – Exploration & Development • Summary of Exploration Activities • Summary of Development Activities • JPDA 06-101, 06-102, 06-103, 06-104 • JPDA Data Availability
    • Synopsis, Exploration & Development • JPDA – Located over Northern Bonaparte Basin, and water depths from 60-1000 m. • Sedimentary sequence comprises thick Mesozoic & Tertiary sediments underlain by Permian & older formations. • Mesozoic & Tertiary deposition and distribution of source & reservoir rocks were influenced by : Locality Map • Subsidence and tectonism • Pre-existing (Palaeozoic) structural grain.
    • Synopsis, Exploration & Development • Present subsurface structural configuration in the JPDA resulted from intersection of several rift cycles. • Structural trends generally strike NE-SW and less frequently NW-SE and E-W • Later faulting and some rejuvenation of Jurassic faults are evident. Structural
    • Synopsis, Exploration & Development • Most accumulations lie in Jurassic-Cretaceous Plover to Flamingo clastics. Stratigraphy • HC’s mostly generated and trapped in dominantly estuarine/deltaic sequences. • Most common traps are fault dependent. Fault seal integrity is vital. • Oil and/or gas shows encountered in about 80% of all wells drilled. • Tertiary fault reactivation is the common cause of hydrocarbons escaping/migrating elsewhere.
    • Synopsis, Exploration & Development TS Wells • Over twenty commercial discoveries & Fields in Northern Bonaparte Basin. • In JPDA, production from 4 out of 9 JPDA PSC’s discoveries • Elang, Kakatua & Kakatua North Oilfields commenced production in EKKN 1998 – 30 MMBO produced to date – Now in late decline
    • Synopsis, Exploration & Development • Bayu-Undan Gas/Condensate Field • Commenced production in 2004. • Reserves of 3.4 Tcf and 400MMB of liquids • Currently producing up to 110,000 BLPD and reinjecting lean gas. • Export from Darwin LNG plant is expected to commence in April 2006. Bayu Undan
    • Synopsis, Exploration & Development • Development of Jahal and Kuda-Tasi Oil Fields (reserves est. 20 MMBO) is under review. • Greater Sunrise Gas Fields are awaiting development (reserves est. 7.7 Tcf gas and 300 MMB liquids). • Significant gas encountered at Chuditch (0.7 Tcf). Also Fohn and Kelp Deep (reserves indeterminate) • Adjacent and west of the JPDA, the Laminaria & Corallina Oilfields commenced development in 1999. Original reserves 200+ MMBO Recoverable Production peaked at 150,000 + BOPD TS Wells & Fields
    • Contents • History of E & D in the JPDA area • Synopsis of Petroleum Geology • Summary of Exploration Activities • Summary of Development Activities • JPDA 06-101, 06-102, 06-103, 06-104 • JPDA Data Availability
    • Summary of Exploration Activities • 50,000+ kms of 2D Seismic • 3,500+ sq-kms of 3D Seismic • Other surveys (Aeromagnetic, ALF, Gravity) • 46 wells drilled, – 37 wells recorded HC’s, of which 9 are commercially significant.
    • Contents • History of E & D in the JPDA area • Synopsis of Petroleum Geology • Summary of Exploration Activities • Summary of Development Activities • JPDA 06-101, 06-102, 06-103, 06-104 • JPDA Data Availability
    • Summary of Development Activities • EKKN – producing through leased FPSO • Bayu-Undan – currently producing condensate + LPG via gas recycling project • BU-DLNG pipeline commissioned and gas introduced. • BU-DLNG facility export program to commence April 2006 • Jahal/Kuda Tasi – proposal for development under review • Sunrise/Troubadour – Inter-Governmental equity discussions at advanced stage
    • Contents • History of E & D in the JPDA area • Synopsis of Petroleum Geology • Summary of Exploration Activities • Summary of Development Activities • JPDA 06-101, 06-102, 06-103, 06-104 • JPDA Data Availability
    • JPDA PSC’s Current & Advertised
    • JPDA 06-101 (3956 km2) • Contains Chuditch gas discovery, est. 0.7 Tcf gas • Only three wells drilled in Chuditch-1 this area JPDA 06-101 • Proven and potential Mesozoic and Permian plays. • Untested structures likely to exist Walleroo-1 • Semi-detailed 2D seismic coverage across entire Nabarlek-1 area • Water depths are generally less than 100 metres.
    • JPDA 06-102 (4215 km2) • Adjacent to Bayu-Undan producing field. Naga-1 Coleraine-1 • Proven Mesozoic oil and gas province Minotaur-1 • Significant HC shows in 4 wells drilled • Good 2D seismic Fohn-1 coverage • Depth to primary target JPDA 06-102 zone < 3,500m. • Water depths less than 120 metres
    • JPDA 06-103 (3741 km2) • Proven petroleum province. • Plays include Permian to Jurassic fault blocks, JPDA 06-103 drape and stratigraphic traps Thornton-1 • 2D seismic coverage across entire area Barnacle-1 • Adjacent to the Jahal and Kuda Tasi oil field discoveries • Untested structures exist with targets < 3500m. • Water depths generally 130 metres or deeper
    • JPDA 06-104 (5777 km2) • Adjacent to the Greater Sunrise Gas Field • Only three wells drilled in this area • Significant hydrocarbon shows encountered JPDA 06-104 • Semi-detailed 2D seismic coverage Jura-1 across entire area includes recent reconnaissance 2D • Existence of untested structures • The Aptian Unconformity is easily Kelp-1 mapped, and is underlain by Kelp Deep-1 Jurassic Flamingo and Plover targets • Depth to targets range from 2,050 – 5,000 m. • Water depths up to 1,000 m.
    • Contents • History of E & D in the JPDA area • Synopsis of Petroleum Geology • Summary of Exploration Activities • Summary of Development Activities • JPDA 06-101, 06-102, 06-103, 06-104 • JPDA Data Availability
    • Data Availability • Geoscience Australia • Oil, Gas & Energy Directorate, TL • Fugro Multi Client Services Pty Ltd • Australian Seismic Brokers Pty Ltd • IHS Energy • Exploration Data Services Pty Ltd