4DPRM ( Permanent Reservoir Monitoring ) − integrated technology of Permanent Reservoir Monitoring based on the high-density seismic acquisition system and using the methods FracturePRM and MicroSeismicPRM. The technology is designed to control development of both offshore and continental hydrocarbon fields. The list of problems to be solved in the framework of 4DPRM includes all problems of technologies CSPD, VPRTM, MicroSeismicPRM, SHD, as well as 4D seismic problems.