Filters: Tags: fluid flow (X)
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Faults and associated fracture networks can significantly influence regional flow of groundwater, hydrocarbons and other fluids. The distribution of CO2 springs and seeps along the Little Grand Wash fault and Salt Wash faults in central Utah is controlled by along-fault flow of CO2-charged groundwater from shallow aquifers (<1 km deep). The same faults are the likely conduits that charge the shallow aquifers with CO2 from depth. We document fault zone trace geometry and architecture, and evidence for palaeo-fluid flow within the footwalls of both faults. Evidence for palaeo-fluid flow consists of extensive bleaching of sandstones and some siltstones, mineralisation of carbonates and celestine veins and minor hydrocarbon...
Categories: Publication;
Types: Citation,
Journal Citation;
Tags: Co2,
Damage zone,
Fault zone,
Fluid flow,
Hydrocarbons,
Laboratory flow-through tests were conducted during slide-hold-slide experiments in a conventional triaxial deformation configuration. Experiments were conducted on 1-inch diameter cylindrical cores of Westerly granite bisected by a sawcut oriented at 30 degrees from vertical. Tests were conducted at a constant confining pressure of 30 MPa with a 10 MPa pore fluid pressure. The pore fluid was deionized water. Experiments were conducted at temperatures of 22, 100, and 200 degC.
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