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Reservoir Quality of Tertiary & Mesozoic Sandstones, Bristol Bay Basin, AlaskaReservoir Quality of Tertiary & Mesozoic Sandstones, Bristol Bay Basin, Alaska
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Milky RiverBear Lk ssBear Lk ocTachilniUngaBelkofskiStepovakTolstoiChignikHerendeenNaknekShelikofKialagvikKaguyakUgashik
Porosity (%)
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Sedimentary Basins of AlaskaSedimentary Basins of Alaska
Tertiary and Mesozoic StratigraphyTertiary and Mesozoic Stratigraphy
Proposed Area of 2005 Lease SaleProposed Area of 2005 Lease Sale
Bristol Bay
ARCO N. Aleutian COST #19957.5’ MD; Stepovak Fm.Φ = 17.2%; K = 0.87 md
Amoco Becharof State #17915.0’ MD; Stepovak Fm.Φ = 7.1 %; K = 0.12 md
OutcropHerendeen Fm.Φ = 4.6 %; K = 0.004 md
ARCO N. Aleutian COST #18635.0’ MD; Stepovak Fm.Φ = 31.4 %; K = 709 md
ARCO N. Aleutian COST #18087.0’ MD; Stepovak Fm.Φ = 32.9 %; K = 2358 md
ARCO N. Aleutian COST #15234.0’ MD; Unga Fm.Φ = 34.2 %; K = 1607 md
ARCO N. Aleutian COST #14198.0’ MD; Bear Lake Fm.Φ = 33.7 %; K = 18 md
ARCO N. Aleutian COST #14197.0’ MD; Bear Lake Fm.Φ = 35.6 %; K = 16 md
Amoco Becharof State #12734.5’ MD; Milky River Fm.Φ = 36.9 %; K = 3470 md
Amoco Becharof State #12726.5’ MD; Milky River Fm.Φ = 43.2 %; K = 2040 md
OutcropTolstoi Fm.Φ = 7.0 %; K = 0.005 md
OutcropNaknek Fm.Φ = 6.3 %; K = 3.38 md
OutcropShelikof Fm.Φ = 3.6 %; K = 0.01 md
OutcropKialagvik Fm.Φ = 9.7 %; K = 0.005 md
Kenneth P. HelmoldState of AlaskaDepartment of Natural ResourcesDivision of Oil and Gas550 West 7th Avenue, Suite 800Anchorage, AK [email protected]
Donald W. BrizzolaraDonald W. BrizzolaraState of AlaskaState of AlaskaDepartment of Natural ResourcesDepartment of Natural ResourcesDivision of Oil and GasDivision of Oil and Gas550 West 7550 West 7thth Avenue, Suite 800Avenue, Suite 800Anchorage, AK 99501Anchorage, AK [email protected]@dnr.state.ak.us
For more information contact:
ReservoirSandstones
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Porosity/Permeability vs Depth
Reservoir Sandstones• High quality in Mio/Pliocene• Minor cementation and compaction• Fine grained to conglomeratic• High to moderate quartz component• Low Dmax
Non-reservoir Sandstones• Mostly Eocene and older• High volcanic component• Arkosic composition• Zeolite cementation• Severe compaction• High Dmax
Becharof #1