Sadlerochit reservoir at Prudhoe Bay, Alaska
The sandstone interval of the Sadlerochit Formation will be the initial producing zone in the Prudhoe Bay field. Initial field production will be approx. 500,000 bpd from about 90 wells drilled on 640-acre spacing. Oil in place has been estimated to exceed 10 billion bbl. The Sadlerochit sandstone is postulated to be a Triassic deltaic deposit obtaining a thickness exceeding 600 ft with a W.-NW. depositional trend and a probable northerly source. The sands are fine-grained to conglomeratic with porosities averaging over 20% and permeabilities generally high and in places exceeding 1 Darcy. Lithology can generally be described as quartzose sandstone with an exotic mixture of pyrite, siderite, tripolite, heavy minerals, and clays.
- Research Organization:
- Atlantic Richfield Co
- OSTI ID:
- 6126069
- Report Number(s):
- CONF-710236-
- Journal Information:
- Am. Assoc. Pet. Geol. Bull.; (United States), Journal Name: Am. Assoc. Pet. Geol. Bull.; (United States) Vol. 54:12; ISSN AAPGB
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
020300* -- Petroleum-- Drilling & Production
ALASKA
ARCTIC OCEAN
BAYS
BEAUFORT SEA
DRILLING
GEOLOGIC AGES
GEOLOGIC DEPOSITS
LITHOLOGY
MESOZOIC ERA
MINERAL RESOURCES
NORTH AMERICA
OIL FIELDS
OIL WELLS
PACIFIC NORTHWEST REGION
PERMEABILITY
PETROLEUM DEPOSITS
POROSITY
PRODUCTION
PRUDHOE BAY
RESOURCES
ROCKS
SANDSTONES
SEAS
SEDIMENTARY ROCKS
SURFACE WATERS
TRIASSIC PERIOD
USA
WELL DRILLING
WELLS