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• 1. [Image] An Experimental Investigation of the Permeability of Kayenta and St. Peter Sandstones to Hypersaline Brine in the Temperature Interval 70 to 90 C at 10. 3-MPa Confining Pressure

  	Permeabilities of 10.2 cm in length, 2.5 cm in diameter Kayenta (porosity, 20.7, +- 1.66%) and St. Peter (porosity, 13.6, +- 0.13%) sandstones to Magmamax No. 1 brine containing suspended solids were determined ...
  	Citation × Citation Citation Abstract Copy Title: An Experimental Investigation of the Permeability of Kayenta and St. Peter Sandstones to Hypersaline Brine in the Temperature Interval 70 to 90 C at 10. 3-MPa Confining Pressure Author: Piwinskii, A.J. Year: 1977 Permeabilities of 10.2 cm in length, 2.5 cm in diameter Kayenta (porosity, 20.7, +- 1.66%) and St. Peter (porosity, 13.6, +- 0.13%) sandstones to Magmamax No. 1 brine containing suspended solids were determined from 70 to 90/sup 0/C at 10.3-MPa confining pressure. Measurements were performed without filters, with one 10-..mu..m filter, and with two 10-..mu..m filters inserted upstream of the core sample. In all cases, there was a dramatic decrease in permeability within the first hour of flow or few hundred pore volumes of flow through the core. Experiments conducted without filters or with one filter yield permeabilities that represent both the rock and the 2- to 3-mm amorphous silica-iron layer on the top face of the core. The experimental results show that if the Salton Sea Geothermal Field (SSGF) were composed of porous, sedimentary formations similar to Kayenta sandstone, long-term injection of unmodified Magmamax brine would not be feasible. In the case of acidified brine, most of the permeability decline may result from the mobilization of calcite Title: An Experimental Investigation of the Permeability of Kayenta and St. Peter Sandstones to Hypersaline Brine in the Temperature Interval 70 to 90 C at 10. 3-MPa Confining Pressure Author: Piwinskii, A.J. Year: 1977 Permeabilities of 10.2 cm in length, 2.5 cm in diameter Kayenta (porosity, 20.7, +- 1.66%) and St. Peter (porosity, 13.6, +- 0.13%) sandstones to Magmamax No. 1 brine containing suspended solids were determined from 70 to 90/sup 0/C at 10.3-MPa confining pressure. Measurements were performed without filters, with one 10-..mu..m filter, and with two 10-..mu..m filters inserted upstream of the core sample. In all cases, there was a dramatic decrease in permeability within the first hour of flow or few hundred pore volumes of flow through the core. Experiments conducted without filters or with one filter yield permeabilities that represent both the rock and the 2- to 3-mm amorphous silica-iron layer on the top face of the core. The experimental results show that if the Salton Sea Geothermal Field (SSGF) were composed of porous, sedimentary formations similar to Kayenta sandstone, long-term injection of unmodified Magmamax brine would not be feasible. In the case of acidified brine, most of the permeability decline may result from the mobilization of calcite Close

• 2. [Image] Viscosity of Brines from the Salton Sea Geothermal Field, Imperial Valley, California

  	The viscosity of chemically analyzed brines from the Salton Sea Geothermal Field was measured from 5 to 90/sup 0/C at 100 kPa. Data indicate that these multicomponent solutions are slightly more viscous ...
  	Citation × Citation Citation Abstract Copy Title: Viscosity of Brines from the Salton Sea Geothermal Field, Imperial Valley, California Author: Piwinskii, A.J. Year: 1977 The viscosity of chemically analyzed brines from the Salton Sea Geothermal Field was measured from 5 to 90/sup 0/C at 100 kPa. Data indicate that these multicomponent solutions are slightly more viscous than a 3.5 molal NaCl solution in this temperature interval Title: Viscosity of Brines from the Salton Sea Geothermal Field, Imperial Valley, California Author: Piwinskii, A.J. Year: 1977 The viscosity of chemically analyzed brines from the Salton Sea Geothermal Field was measured from 5 to 90/sup 0/C at 100 kPa. Data indicate that these multicomponent solutions are slightly more viscous than a 3.5 molal NaCl solution in this temperature interval Close