Analysis of dry, wet and superwet in situ combustion using a novel conical cell experiment

摘要

A conical combustion cell was built and utilized in combustion experiments a the In Situ Combustion Research Group a the University of Calgary to investigate the effect of continuous in situ air flux drop on the dynamics of the combustion process and to identify the characteristics of the process most importantly the extinction air flux. Nine set of top-down (gravity stable) dry, we and superwet combustion experiments were conducted a different injection rates in sand packs representing typical Athabasca heavy oil reservoirs. The temperature profiles, the produced combustion gases and liquids as well as the unpacked core were examined. Minimum injected air flux a the termination of the experiments was calculated; gas phase combustion parameters were analyzed. Some of the features specific to combustion experiments in conical cells were investigated.