摘要
Combined with results of previous studies,this paper considers source rock,trap,and the source fault are main control factors of hydrocarbon accumulation in Beir depression.By studies on spatial matching relation of oil reservoir forming factors in Beier depression——K1n source rock,fracture,fault trap and source fault,it was considered that fracture and fault traps had 4 contact relations with K1n source rocks in space in Beier depression.The control effect of space matching relation of 3 reservoir forming factors on oil accumulation and distribution was shown as follows: 1) distribution of oil reservoir was controlled by the distribution of K1n source rock; 2) oil reservoirs are all distributed along source faults; and 3) the shorter the distance from trap to K1n source rock,the better it is to form oil reservoir.