构造精细解释技术的应用

Application of structure fine interpretation technology

构造解释的精度及准确度直接决定了油田钻探的成败,综合利用三维地震、井间地震、钻井、动态资料,采用数值模拟技术可大幅提高构造解释的准确性。文中将钻井资料与三维地震资料相结合,对文209断块内部断距小于5 m的断层实现了准确解释与归位,对内部的小型褶皱、断块进行了详细刻画。在获取断层密度、产状、性质的基础上,利用数值模拟技术预测未知小断层的断距、产状(断层的走向、倾向和倾角)和断层的分布密度,从而实现了文209断块的精细构造解释,提高了小构造的落实程度,降低了油田勘探的风险,为油田滚动开发方案部署提供了重要参考。

The precision and accuracy of tectonic interpretation directly decide the success or failure of oilfield drilling. By comprehensively using the data of 3-D seismic, crosswell seismic, drilling and dynamic data at the same lime, the numerical simulation technology can greatly improve the accuracy of tectonic interpretation. Combined 3-D seismic data with drilling data, this paper realized the accurate inteqretation and position for the faults with the tault displacement Jess than 5 m within Wen 209 Block and carried on the detailed description fnr its interual small fold and fault block. Based on the acquisition of fault density, ueeurrenee, properlies, the author used the numerical sinmlation teclmology to predict the fault displacement, the occurrence of unknown small lhuh （including the strike, dip, Flipping angle of fault） and the distribution density of fault, realizing the fine structure interpretation of Wen 209 Blnck and improving the degree of small structure to be canied out, which greatly reduced the risk of the oilfiehl exploration and prnvided an important reference for deplnying the rolling development plan of oilfield.