石油地质与工程2026，Vol.40Issue(1)：8-14,7.DOI:10.26976/j.cnki.sydz.202601002
叠前同时反演技术在页岩油储层预测中的应用
Application of pre-stack simultaneous inversion technology in shale oil reservoir prediction:a case study ofLucaogou Formation in Block Ji 36 of JimusarSag
摘要
Abstract
The shale oil reservoir of the Lucaogou Formation in Block Ji36 of the western slope zone of the Jimusaer Sag,Junggar Basin,exhibits strong heterogeneity.The wave impedance difference between reservoir sweet spots and surrounding rocks is small,making conventional post-stack seismic inversion technology unable to accurately predict the distribution of sweet spots.Based on the consistent processing of logging curves,starting from the petrophysical model,this study analyzes the logging curve response characteristics of shale oil reservoirs and the sensitive petrophysical parameters of target reservoirs.The results show that shale oil reservoirs are well-developed in areas with low P-wave to S-wave velocity ratio and high P-wave impedance,and the analysis of P-wave impedance and P-wave to S-wave velocity ratio can distinguish sandstones from mudstones.The prediction results are highly consistent with drilling and well testing data,which proves that the 3D seismic pre-stack simultaneous inversion technology can accurately predict the sweet spots of shale oil reservoirs.The technology application provides a reference basis for the deployment of shale oil exploration wells and the optimal design of horizontal well trajectories in this block.关键词
准噶尔盆地/吉木萨尔凹陷/芦草沟组/叠前同时反演/页岩油/储层预测Key words
Junggar Bain/Jimusaer Sag/Lucaogou Formation/prestack simultaneous inversion/shale oil/reservoir prediction分类
天文与地球科学引用本文复制引用
郭金盾,文一华,齐兴国,周亚东,任重宇,冯亚琴,师君丽..叠前同时反演技术在页岩油储层预测中的应用[J].石油地质与工程,2026,40(1):8-14,7.基金项目
中国石油集团重大专项"致密砾岩储层分类评价及甜点区预测技术研究"(2023ZZ24YJ02). （2023ZZ24YJ02）
