Two reservoirs domiciled in a well have been analysed this study order to obtain the quantitative reservoir properties. These properties are essential not only for development and optimization but also accurate decision-making prior exploitation production. A suite of composite logs comprising caliper log, gamma-ray (GR) density resistivity sonic transit time obtained from field onshore Niger D...

Abstract Soil functions such as water storage, soil filtration, and reducing reservoir life due to sediment load are directly affected by the process of “soil erosion.” The Universal Loss Equation was adopted predict erodibility factor for watersheds feeding Al-Shewicha trough. K -average factor’s determined value 0.156, indicating that -factor had substantial variability. values linked high sa...

Class 1 hydrate reservoirs are regarded as the most promising targets for gas production. Previous investigations in northern South China Sea have proven that low-permeability reservoir at site GMGS3-W19 is a deposit. However, dynamic production behaviors of this type not yet fully understood. Here, we report recovery from containing underlying free layers with different initial saturations and...

a study was carried out in malawi to determine the levels of heavy metals in cabbages grown in gardens irrigated with reservoir and tap water. the concentrations of cadmium, lead and chromium were determined in the leaf and in the corresponding soils in order to assess whether the amounts in the soils reflected the accumulation of heavy metals in plants. the results showed that the levels of th...

HYDROLOGIC PROPERTIES OF THE DIXIE VALLEY, NEVADA, GEOTHERMAL RESERVOIR FROM WELL-TEST ANALYSES R.H. Morinl, S.H. Hickman2, C.A. Barton3, A.M. Shapird, W.R. Benoits, J.H. Sass6 1U.S. Geological Survey, Denver, CO 80225, USA [email protected] 2U.S. Geological Survey, Menlo Park, CA 94025, USA [email protected] 3Stanford University, Dept. of Geophysics, Stanford, CA 94305, USA barton@ pan...

Production from the North Sea reservoirs often results in a pressure decrease below bubble point. The gas is liberated oil, form of bubbles or as continuous flowing phase. In such cases, two phases, and flow reservoir simultaneously, governed by values relative permeabilities. Traditional core flooding low permeability rocks challenging, therefore we use novel experimental approach to determine...

Fluids within the Earth's crust may exist under supercritical conditions (i.e., >374°C and >22.1 MPa for pure water). Supercritical geothermal reservoirs at depths of 2–10 km below surface in northeastern (NE) Japan mainly consist magmatic fluids that exsolved from melt during course fractional crystallization. have received attention as next-generation resources because they can offer signific...

To determine factors controlling permeability variations within and adjacent to a fault-hosted geothermal reservoir at Dixie Valley, Nevada, we conducted borehole televiewer observations of wellbore failure (breakouts and cooling cracks) together with hydraulic fracturing stress measurements in six wells drilled into the Stillwater fault zone at depths of 2-3 km. Measurements in highly permeabl...

the chemical surfactant flooding can mobilize the trapped oil by lowering the interfacial tension between oil and brine and in some cases altering the reservoir rock wettability. in this work, the effect of surfactants on oil/brine interfacial tension was experimentally investigated. first, the effect of surfactants concentration was surveyed. afterwards, the effect of salinity on surfactant be...

The long-term maintenance of stable redox-flow-battery performance requires a strategy to manage dynamic volume imbalances between electrolyte reservoirs. Even with ion-selective membranes as separators, bulk liquid exchange can occur within the reactor because pressure differences across its positive and negative chambers. Disproportionation chemistries, wherein both reservoirs have identical ...