Research and Development of Sandstone Acidizing Design Models

Research and development of sandstone acidizing design models abroad are introduced in this paper. The latest achievements scince 1990s include lumped parameter model, distribution parameter model," two -acid and three-mineral" model, generalized geochemical model,matrix acidizing real time monitoring and evaluation softwares, expert system for matrix acidizing design optimization, geochemical reaction - transfer simulator for matrix acidizing analysis and design, long core acidizing process and etc.