The object of research is shale, which a combination carbonate (calcite or dolomite), and non clay minerals such as silica (quartz) kaolinite. Characterization various in shale formed six abandoned petroleum wells was done using Energy Dispersive X-ray (EDX), diffraction (XRD) Fourier Transformation Infra-Red (FTIR). Shale may contain wide variety minerals. formation within the current study at...

BACKGROUND The chronic kidney disease of unknown etiology (CKDu) among paddy farmers in was first reported in 1994 and has now become most important public health issue in dry zone of Sri Lanka. The objective was to identify risk factors associated with the epidemic in an area with high prevalence. METHODS A case control study was carried out in Padavi-Sripura hospital in Trincomalee district...

during recent years there has been increasing consciousness of, and concern about, groundwater water pollution and monitoring in iran. in this context, a comprehensive review of the trace elements and heavy metals in groundwater of oshtorinan plain in northern part of boroujerd has carried out to investigate the effects of weathering minerals, agricultural and industrial activities. groundwater...

Thousands of unplugged abandoned oil wells throughout the Permian Basin – one world's leading plays have potential to create ground instability and damage environment due aging facilities instances mismanagement. Satellite radar remote sensing technologies, capable detecting subtle surface changes over time with broad geographic coverage, are a valuable tool for monitoring health integrity by g...

This paper is devoted to solving the problem of how comprehensively control coal seam gas and hydrogen sulfide in mining face, distributed from abandoned oil wells resource areas. The Ma tan 30 31 No. I0104105 working face Shuang Coal Mine were taken as examples. Through parameter testing, composition analysis, field investigation at source distribution, influence range affected studied. result...

Three independent tracer experiments were conducted to quantify the through-flow of water from Herman Pit, an abandoned mercury (Hg) mine pit adjacent to Clear Lake, California, USA. The tracers used were Rhodamine-WT, sulfur hexafluoride, and a mixture of sulfur hexafluoride and neon-22. The tracers were injected into Herman Pit, a generally well-mixed water body of approximately 81,000 m2, an...

Well blowout rates in oil fields undergoing thermally enhanced recovery (via steam injection) in California Oil and Gas District 4 from 1991 to 2005 were on the order of 1 per 1,000 well construction operations, 1 per 10,000 active wells per year, and 1 per 100,000 shutin/idle and plugged/abandoned wells per year. This allows some initial inferences about leakage of CO2 via wells, which is cons...

This study investigates the potential of using geothermal energy from abandoned oils in a novel three-loop system; geothermal, power and cooling loops to produce effect. The loop drives thermo-mechanical refrigeration (TMR) system consisting expander-compressor units (ECUs). advantages lie its simple, flexible, low-cost design as well ability be driven by low-temperature heat source (as low 60 ...