UNCONVENT?ONAL DRY HEAT RECOVERY ENHANCEMENT OF WAFRA-EOCENE US?NG CONVENT?ONAL TEMPERATURES

摘要

Eocene-Wafra is a heavy oil reservoir that is producing 17-21°.API oil. This carbonate-dolomite reservoir has substantial amounts of heavy oil and has low primary recovery of 3%, which is a candidate for steam recovery. However, current high quality steam recovery campaign is facing serious technical challenges such as expensive cost of production, inefficient recovery yield, and limited supply of fresh water for the injection, which make other unconventional recovery plans more attractive to increase the recovery. This study will address a dry heat recovery mechanism of a synthetic reservoir media with real Eocene dead oil samples. The main objective of this study is finding the optimum recovery rate using dry heat instead of expensive, inefficient and limited supply water of conventional steam recovery. Another objective is to predict the heavy oil recovery at several temperatures based on its viscosity reduction. In addition, Study the effect of copper and iron heating elements on the oil recovery. And finally, study the effect of progressive elevated temperature on oil quality recovered, such as density and composition.