First application of the technology of turing mud cakes into gel cakes in Shengli Oilfield

Along with the development of cementing technology, the quality of the one-interface cementing can meet the requirement of exploration and production. However, the quality of two-interface cementing has not been improved remarkably, because of the weak interface combination of cement, mud cakes, and formations according to the research. So to realize the overall curing cement of the three parts is the fundamental way to solve the problem of two-interface of cementing in Shengli Oilfield. Based on the theory of turing mud cakes into gel cakes, the main factors that influence the quality of ttwo-interface cementing are analyzed, research and development is conducted on the slurry system and main techniques for improving the quality of two-interface cementing. Furthermore, in this paper the principal rules and research process of the theory are introducted. The theory has been applied for the first time to Shengli Oilfield, providing a novel solution to improve the quality of two-interface cementing.