Petrology and reservoir potential of Tertiary and Mesozoic sandstones, Cook Inlet, Alaska: A preliminary analysis of outcrop samples collected during 2007-2010 field seasons

The State of Alaska Division of Geological & Geophysical Surveys (DGGS) and Division of Oil & Gas (DOG) are currently engaged in a multi-year study of the hydrocarbon potential of the Tertiary and Mesozoic strata in Cook Inlet basin. Modal analyses and routine core analyses were performed on Tertiary and Mesozoic siltstones and sandstones collected during the 2007-2010 field seasons from six geographic areas in upper and lower Cook Inlet. The reservoir quality of Cook Inlet sandstones varies widely depending on their mineralogy, geologic age, burial depth, and depositional environment. Tuxedni and Naknek sandstones have poor reservoir quality and are likely to be of equally poor quality down dip. West Foreland sandstones...

Tags: Aleutian Arc, Beluga Basin, Bluff Point, Capps Glacier, Chert, All tags... Chuitna River, Clam Gulch, Cook Inlet, Cook Inlet Basin, Diagenesis, Falls Creek, Feldspar, Fritz Creek, Graywacke, Homer, Iniskin Bay, Iniskin Peninsula, Kachemak Bay, Kaguyak, Matanuska Valley, Mineralogy, Oil Basins, Oil and Gas, Oil and Gas Basin, Outcrop Samples, Permeability, Petrographic, Petrography, Petroleum Basin Study, Petrology, Porosity, Provenance, Pyroclastic Fall, Pyroclastic Flow, Quartz, Reservoir, Reservoir Evaluation, Reservoir Quality, Resource Assessment, Saddle Mountain, Sample Location, Sample Location Map, Sand, Sand and Gravel, Sediment Transport, Sedimentary, Sedimentary Rocks, Sedimentation, Sedimentology, Seward Peninsula, Southcentral Alaska, Straight Creek, Tectonics, Thin Section, Tyonek, Tyonek Quadrangle, Volcanic, Volcanic Ash, Volcaniclastics, Zeolites, geoscientificInformation, Fewer tags

Facies associations, sand body geometry, and depositional systems in Late Oligocene-Pliocene strata, southern Kenai Peninsula, Cook Inlet, Alaska: Report on progress during the 2006-07 field season

This preliminary report is a summary of progress made during the 2006-07 field seasons reconstructing depositional systems in Tertiary strata exposed in the Homer-Kachemak Bay area.The study area addressed in this report extends from Clam Gulch in the north to Coal Cove in the south.Tertiary strata in this area are only mildly deformed and provide a relatively clear view of depositional systems and sand body geometries along the eastern basin edge and their change from basin edge to more basin axial positions.

Tags: Basins, Bluff Point, Clam Gulch, Coal Cove, Cook Inlet, All tags... Cook Inlet Basin, Deep Creek, Diamond Gulch, Falls Creek, Fox River, Fritz Creek, Kachemak Bay, Kenai National Wildlife Refuge, Kenai Peninsula, Measured Sections, Measured Stratigraphic Section, Point Pogibshi, Port Graham, geoscientificInformation, Fewer tags