The last decade has seen a dramatic increase in domestic energy production from unconventional reservoirs. This energy boom has generated marked economic benefits, but simultaneously evoked significant concerns regarding the potential for drinking-water contamination in shallow aquifers. Presently, efforts to evaluate the environmental impacts of shale gas development in the northern Appalachia...

an aquifer located within a petroleum processing plant in moín, costa rica, suffers hydrocarbon pollution. this study aimed to determine the ability of indigenous microorganisms from this site to degrade polycyclic aromatic hydrocarbons (pahs) to evaluate the feasibility of an eventual bioremediation process. aerobic conditions were found in the aquifer, while microbial analyses of the groundwa...

In this investigation the fluorescence quenching of fluorescent probe molecules situated within surfactant micelles was examined. The hydrophobic polyaromatic hydrocarbon benzo(a)pyrene (B(a)P) and the more polar 6-propionyl-2-(dimethylamino)-naphthalene (PRODAN) were used to assess the effect of high quencher concentration on the quenching process in micelles. Using the surfactant systems sodi...

Gas reservoirs usually have high recovery due to high mobility and low residual gas saturation, although some of them producing under water-drive mechanism have low recovery efficiency. Encroachment of water into these reservoirs traps considerable amount of gas and increases the maximum residual gas saturation, which results in the reduction of gas and condensate production. Generally, the rec...

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Knowledge of the mineralogical composition a petroleum reservoir's formation is crucial for petrophysical evaluation reservoir. The Mishrif formation, which prevalent in Middle East, renowned its complexity. Multi-mineral inversion, combines multiple logs and inversions minerals at once, can make it easier to figure out what are Formation. This method could help identify better give more inform...

Abstract The present work aims to investigate the reservoir characterizations of Lower Cenomanian Baharyia Formation by creating isoparametic maps calculate petrophysical parameters and detect favorable parts for oil accumulations using available well logging data. is one main hydrocarbon sandstone reservoirs in northern Western Desert Egypt. About 90% field produces form Formation. This has be...