Abstract:Through analysis and study on encirclement-forming condition and oil deposit origin of Zhenglizhuang magmatic rocks, four types ore deposits are determined in this area. By using tectonic and geological profile map, lower surface tectonic sketh of magmatic rocks and tectonic sketch of upper and lower surfaces in sand stratum, encirclement scope screened by magmatic rocks is circled. Combing with electrical measuring, oil-exploration experiment and dynamic exploration information, oil-bearing scope of oil deposit screened by magmatic rocks is determined, and geological reserve of oil is measured.