地震反演地震地质储层参数转换应用——以歧口地区为例  

Application of Seismic Geologic Reservoir Parameter Transformation for Seismic Inversion——A Case Study for Qikou Area

作　　者：邢兴[1] 赵勇刚[1] 赵永峰[1] XING Xing ZHAO Yonggang ZHAO Yongfeng(Exploration and Development Research Institute of Dagang Oilfield Company, Tianjin 300280, Chin)

机构地区：[1]大港油田勘探开发研究院,天津300280

出　　处：《重庆科技学院学报（自然科学版）》2017年第3期66-70,共5页Journal of Chongqing University of Science and Technology：Natural Sciences Edition

基　　金：中国石油集团公司科研项目"大港油区大油气田勘探开发关键技术"(2014E-06)

摘　　要：针对同一研究区不同研究目标,对地震反演方法进行优化组合后,得到相应的波阻抗反演体,再进行储层参数转换。测井曲线重构波阻抗反演及多门槛制法砂体厚度预测相结合,有效提高了歧口地区深层砂体厚度预测的准确性。根据原始波阻抗反演结果,结合Fillippone法计算地层压力系数理论,提出断陷盆地不同埋深地层压实差异影响因素下地层压力系数计算方法,通过歧口地区异常压力预测可能的深层天然气富集区,预测与实际钻井结果相符。Aiming at the different research objectives in the same research area, the seismic inversion method is optimized and the corresponding impedance inversion body is obtained; and then the reservoir parameters are trans-formed .The results show that the combination of wave impedance reconstruction and multi - threshold method is effective to improve the prediction accuracy of deep sand body thickness in Qikou area. According to the inversion results of the original wave impedance, the formation pressure coefficient theory based on Fillippone method is applied to calculate the formation pressure coefficient under the influence of compaction difference of different bur-ied depths in rift basins. The potential deep gas accumulation area can be predicted by the abnormal pressure in Qikou area, and the prediction is in accordance with the actual drilling results.

关 键 词：岩性反演 储层参数转换 压力预测 

分 类 号：P631[天文地球—地质矿产勘探]