Experimental investigation on the influence of the salinity adsorption-desorption behavior of the clay-based rocks
Keywords:Enhanced Oil Recovery (EOR), Petroleum, Kaolinite, Clay, and Adsorption.
Enhanced Oil Recovery, better known as EOR is a tradeoff between price of recent rising technologies and the cost needed to implement them. As knowledge domain advances a large number of advanced tertiary recovery mechanisms are suggested; one such methodology that is cost-friendly is low-salinity water Injection. This paper aims to study the facts of low-salinity water injection i.e. the results on the oil recovery within the presence on swelling and non-swelling clays along with different parameters like pH and polarity of oil on the relative extraction of oil from reservoir. In light of the experiments conducted, it's apparent that the low-salinity water injection will work well compared to the normal-salinity flood through the experiments, that is by increasing the oil recovery by 0.6 mg/g of oil per kaolinite with an equivalent adsorption ratio at a pH scale of 4. The results collected throughout the devised experiment summarily prove the existence of an underlying mechanism with a chemical route, due to the influence of pH scale and therefore the relative unaffected nature of bentonite with reference to the low-salinity chemical mechanism.
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