Abstract:

Physical simulation of clastic sedimentary system is an important resort of studying sedimentary process,it is also one of efficient methods of forecasting oil gas sandbody distribution.The similarity of sedimentary process is the key of physical simulaion.So simulating experiment must suffice resemble theory.Basin theory keeping sedimentary process of model similar to that of prototype is geometry resemblance,kinetic resemblance,dynamic resemblance and three deduced basic rules such as grain suspend resemblance,grain kinetic resemblance,river bed transfiguration resemblance.Some resemblance conditions can not be content in experiment at the same time,the main conditions influencing sedimentary process should be content first.The establishment of geology and physical models according to actual condition is the foundation of correct physical simulation;the determination of experiment project based on the models is the main link of the simulation.

Key words: clastic sedimentary system, physical simulation, theory, method, similarity