2011•Journal of Oil and Gas TechnologyRequires access
Chemical Assisted Steam Soaking in Heavy Oil Reservoirs
Ke Wang
Open publisher page 1 citations
Abstract
The main development method for heavy oilfield was thermal recovery for heavy oil,it had features of high viscosity,great density and poor mobility.Nowadays soak was one of the most widely used thermal method in the oilfield.This article regarded reservoir Guantao Formation in Cao 27 Area of Shengli Oilfield as its objective reservoir.By establishing a three-dimensional geological model and using numerical reservoir simulation method,the stimulation method assisted by chemical agents is optimized which is suitable for the heavy oilfields.The projects of optimum proportion of steam + nitrogen gas assistance,steam + carbon dioxide assistance,steam + surfactant + carbon dioxide + nitrogen gas assistance are determined.The results provide reference for the soak method assisted by chemical agents for the objective reservoir and similar reservoirs.