重庆科技大学学报（自然科学版）2025，Vol.27Issue(3)：26-37,12.DOI:10.19406/j.issn.2097-4531.2025.03.003
侵入岩变质带储层定量预测
Quantitative Prediction of Igneous Intrusion-Metamorphic Zone Reservoirs:A Case Study From the Second Member of the Funing Formation in the Shanian Area,Gaoyou Sag
摘要
Abstract
This study conducts quantitative identification research on the metamorphic zone reservoirs of shallow intrusive rocks in the second member of the Funing Formation in the Shanian Area,Gaoyou Sag,by comprehen-sively utilizing drilling/logging information and high-resolution 3D seismic data.Firstly,reservoir characteristics of intrusive rock metamorphic zones in the study area were clarified.Logging data indicate that diabase exhibits a"two lows and two highs"(low natural gamma GR,low acoustic interval transit time AC,high resistivity RT,and high density DEN)response characteristic compared to surrounding rocks,with no significant negative anomaly in the spontaneous potential SP curve.The response characteristics of the metamorphic zone in terms of GR/AC/RT/DEN show certain differences compared to the surrounding non-metamorphic strata,and the SP value exhibits a large negative anomaly.On seismic profiles,diabase exhibits strong amplitude,low frequency,and good continuity,forming a"two troughs sandwiching one peak"configuration with overlying and underlying metamorphic zones.Sec-ondly,a main thickness prediction method based on seismic waveform structure attribute is designed.The wave peak skewness seismic attribute and reflection intensity slope seismic attribute are extracted to identify major thick-ness development zones of diabase metamorphic belts.Finally,a multi-parameter joint inversion prediction ap-proach is proposed.By fully leveraging various logging information,this method employs multi-parameter joint in-version to identify diabase and metamorphic zones in seismic profiles.Subsequently,based on lithologic shielding processing technology and lithology thickness calculation methods,the main thickness of diabase and metamorphic zones is quantitatively predicted.Practical data applications demonstrate that prediction results show high consisten-cy with actual drilling outcomes.关键词
高邮凹陷/阜宁组二段/侵入岩变质带/多参数联合反演/波峰偏态属性/反射强度斜率属性Key words
Gaoyou Sag/second member of the Funing Formation/intrusive rock metamorphic zone/multi-param-eter joint inversion/peak kurtosis attribute/reflection intensity slope attribute分类
天文与地球科学引用本文复制引用
秦磊,骆璞,王筱,裴然,陈军..侵入岩变质带储层定量预测[J].重庆科技大学学报（自然科学版）,2025,27(3):26-37,12.基金项目
中国石化科技攻关项目"苏北盆地邻源地质体成藏条件及勘探关键技术"(P24116) （P24116）
江苏油田科技项目"提升有效储层预测精度研究"(JS23008) （JS23008）
