石油地质与工程2024，Vol.38Issue(3)：36-41,6.
叠后地质统计学反演在H地区储层预测中的应用
Application of post-stack geo-statistical inversion in reservoir prediction in H area
摘要
Abstract
Layer A3 in H area is one of the most favorable areas for looking for lithologic traps in Huizhou sag of Pearl River Mouth Basin.However,the thickness of the A3 is thin,and the longitudinal resolution of post-stack seismic data and conventional post-stack deterministic inversion results is low,making it diffi-cult to identify the pinch-out position and plane distribution.With the post-stack geo-statistical inver-sion method,statistical model is established by using geological,logging,seismic information and Bayesian probability density function.The random simulation is carried out by Markov chain-Monte Carlo algorithm,and then high precision and high resolution inversion impedance and lithology are obtained.Compared with conventional deterministic inversion,geo-statistical inversion results have clearer high-frequency details,doubled resolution,and identified the strike and pinch-out position of the A3 thin layer sandstone,provi-ding a good reference for reservoir prediction of lithological reservoirs in H area.关键词
地质统计学反演/贝叶斯理论/MCMC随机模拟/薄层砂体识别Key words
geo-statistical inversion/Bayesian theory/MCMC random simulation/thin sand body identifi-cation分类
地质学引用本文复制引用
刘灵,徐乐意,陈人杰,朱焕,谢雨,邴琦,杨帆..叠后地质统计学反演在H地区储层预测中的应用[J].石油地质与工程,2024,38(3):36-41,6.基金项目
中海石油"十四五"重大科技项目海上深层/超深层油气勘探技术(KJGG2022-0403). （KJGG2022-0403）
