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1问题的提出海拉尔盆地苏德尔特构造带兴安岭群和布达特群是主要含油层位。兴安岭群底部地层胶结致密,泥岩、含砾细砂岩、含砾粗砂岩、杂色砂质岩等组成不等厚互层;布达特群地层为潜山储层,地层硬度大裂缝发育,同时,由于受多次构造运动的影响,区块内断层、裂缝发育,形成了大小
1 PROBLEM PROBLEMS The Xing’anling Group and the Budat Group, the Sudeerte structural belt in the Hailar Basin, are the major oil-bearing formations. The bottom of the Xing’anling Group is characterized by dense cementation, mudstone, fine grained sandstone, gravelly coarse sandstone and variegated sandy rock with unequal thickness. The Budat group is a buried hill reservoir with large hardness and fractures. At the same time, due to the influence of multiple tectonic movements, the faults and fractures in the block developed and formed the size