有限元数值模拟在构造裂缝定量预测中的应用

牛心坨油田的储层裂缝比较发育，裂缝的发育状况直接影响油井的产能，从构造裂缝形成的外因－裂缝形成的古构造应力场出发，根据弹性力学理论，利用有限元数值模拟法，研究牛心坨油田储层裂缝的方。密度等的分布，该研究不仅为牛心坨地区的油气开发提供了依据，同时对其它储层（如碳酸盐岩及特殊岩性储层）的裂缝研究具有重要的指导意义。

APPLICATION OF FINITE NUMERICAL SIMULATION IN QUANTITATIVE PREDICTION OF STRUCTRAL FRATURES

Reservoir fractures are relatively well developed in Niuxintuo oilfield which control the productivity of oil well directly. Beginning with the external forming causes of structural fractures, i.e. palaeo structural stress field, orientation and density distribution of fractures in the same reservoir are studied using finite numerical simulation and elastic mechanics theory. It is concluded that these efforts are not only essential to develop oil/gas in Niuxintuo area, but own great significance in understanding other reservoir fractures, such as those in carbonatite and special lithologic reservoirs.