关键词: 中国, 构造, 裂缝油气藏, 圈闭, 类型, 油气藏, 成因

Abstract: In accordance with lithotype and its structural condition,the structural fractured hydro-carbon reservoir is clasified into four categories,including 13 types of traps,which are distributed in four types of petroliferous basins. In craton basins formed pre-Alpine phase,it isfavorable to form the structural fractured reservoirs in the region where carbonates mainlydeveloped in which the seals exist.During the Alpine phase an upper oil-bearing assemblageof the continental deposits was forrned in the subsidence inland basins of western China,inwhich the structural fractured reservoirs occur locally, while in a lower oil-bearing asserm-blage developed in the giant petroliferous basins,the structural fractured reservoirs have better prospects. In the craton-foredeep basin of central China,exploration for these reservoirs inthe lower assemblage has made a remarkable headway,but only those filled with coal-gere-nating gas occur in the upper assernblage. In the fault basins of eastern China,there are somestructural fractured reservoirs in the upper assemblage under special structural conditions.Thus,the structured fractural hvdrocarbon reservoirs are widespread.In the region associatedwith older uplift,specifically those with seal,it is an ideal place to look for gaint oil accumu-lation in the structural fractured reservoirs.

Key words: China, structure, fractured reservoir, trap, type, hydrocarbon reselvoir, origin