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

Mercury injection capillary pressure (MICP) results from outcrop samples in the Tyonek, Beluga, and West Foreland Formations, Tyonek and Talkeetna quadrangles, Alaska

The State of Alaska Division of Geological & Geophysical Surveys (DGGS) is currently engaged in a multi-year study of the hydrocarbon potential of the Tertiary and Mesozoic strata in Cook Inlet basin. This report summarizes mercury injection capillary pressure (MICP) data for 38 outcrop samples collected from the Tyonek, Beluga, and West Foreland Formations in the Tyonek and Talkeetna quadrangles. All samples were collected from measured stratigraphic sections. The Tyonek Formation samples have unimodal pore systems and the majority have well defined to sharp intrusion profiles. The Beluga Formation samples are characterized by unimodal pore systems and relatively broad intrusion profiles. The West Foreland Formation...

Tags: Analyses, Analytical Results, Cook Inlet, Cook Inlet Basin, Gas Basins, All tags... Mercury Injection Capillary Pressure Analysis, Oil Basins, Oil and Gas, Oil and Gas Basin, Outcrop Samples, Permeability, Petroleum, Petroleum Basin Study, Porosity, Reservoir, Reservoir Evaluation, Reservoir Quality, Sample Location, Sample Location Map, Susitna Basin, Talkeetna Quadrangle, Tyonek Quadrangle, geoscientificInformation, Fewer tags

Mercury injection capillary pressure (MICP) results from outcrop samples in the Naknek Formation, Iniskin Peninsula, Alaska

The State of Alaska Division of Geological & Geophysical Surveys (DGGS) is currently engaged in a multi-year study of the hydrocarbon potential of the Tertiary and Mesozoic strata in Cook Inlet basin. This report summarizes mercury injection capillary pressure (MICP) data for nine outcrop and measured section samples collected from the Naknek Formation on the Iniskin Peninsula in Cook Inlet. All samples were analyzed by PetroTech Associates, Houston, TX. Two of the samples were found to have overall capillary properties that would make them moderately good quality, Type B seals.

Tags: Analyses, Analytical Results, Cook Inlet, Cook Inlet Basin, Gas Basins, All tags... Geologic, Geology, Iniskin Peninsula, Mercury Injection Capillary Pressure Analysis, Non-Metals, Oil Basins, Oil and Gas, Oil and Gas Basin, Outcrop Samples, Permeability, Petroleum, Petroleum Basin Study, Porosity, Reservoir, Reservoir Evaluation, Reservoir Quality, Resources, Sample Location, Sample Location Map, geoscientificInformation, Fewer tags