地质与勘探2018，Vol.54Issue(1)：130-137,8.
辽河坳陷粗面岩地球物理响应特征及预测技术研究
Geophysical Response Characteristics and Prediction Technology of the Trachyte in the Liaohe Depression
摘要
Abstract
The Oulituozi area in the Liaohe depression hosts abundant hydrocarbon resources in long-scale thick trachyte. Due to the particular geo-physical properties and irregular distribution of this rock,there is not a set of targeted prediction technology,restricting the future exploration and develop-ment of trachyte reservoirs. To solve this problem,we propose a method by using seismic technologies to predict trachyte based on petrophysical analysis and forward modelling. Our work shows that①the trachyte is characterized by low acoustic moveout,high density,high natural gamma,low frequency, and high amplitude in seismic response. ②Joint multi-parameter lithology inversion and impedance inversion can predict the distribution of trachyte. ③The average reflection strength and average peak amplitude can highlight the anomalies caused by the trachyte,permitting to accurately depict the distribu-tion of trachyte. ④Trachyte distribution has the same low frequency domain feature, which can be identified by the frequency slices of tunning cube of 21Hz.关键词
辽河坳陷/粗面岩/正演模拟/多参数岩性反演/波阻抗反演/地震属性分析/频谱分解Key words
Liaohe depression/trachyte/forward modelling/multiparameter lithology inversion/acoustic impedance inversion/seismic attributes a-nalysis/frequency spectrum decomposition分类
天文与地球科学引用本文复制引用
卢浩,舒朝晖,董文波..辽河坳陷粗面岩地球物理响应特征及预测技术研究[J].地质与勘探,2018,54(1):130-137,8.基金项目
国家自然科学基金"高煤级煤层气储层应力敏感性及控制机理"(编号:41172145)、中国石油天然气股份有限公司科技专项"辽河油田原油千万吨持续稳产关键技术研究"(编号:2012E-3001)联合资助. （编号:41172145）
