阳信地区沙一段生物灰岩储层地震预测方法
|
摘要
针对阳信洼陷沙一段生物灰岩储层单层薄、层数多、横向变化快、预测难度较大的特点,在分析该区地质沉积特征及沙一段地震反射特征基础上,采取了地震相分类、分频技术对该区生物灰岩储层发育区进行了预测,应用叠前AVO属性及频谱衰减技术检测储层发育区的含气性,得出有利含气储层发育区,预测结果与已钻井吻合较好,为该区下步沙一段生物气勘探指明了方向。
According to the characteristics of S1 Member biolithite in Yangxin low-lying area,such as thin single bed,multi layers,quick change of lateral velocity and difficult prediction,seismic phase assorting and frequency division technology are applied to predict the development areas based on the analysis of geologic sedimentation and seismic reflection features.The technologies of AVO attribute and spectral decay are used to detect the gas signature of reservoir development area for obtaining favorable gas zones.The results of prediction and actual drillings are shown to be good,which can guide the next biogenic gas exploration of S1 Member.
According to the characteristics of S1 Member biolithite in Yangxin low-lying area,such as thin single bed,multi layers,quick change of lateral velocity and difficult prediction,seismic phase assorting and frequency division technology are applied to predict the development areas based on the analysis of geologic sedimentation and seismic reflection features.The technologies of AVO attribute and spectral decay are used to detect the gas signature of reservoir development area for obtaining favorable gas zones.The results of prediction and actual drillings are shown to be good,which can guide the next biogenic gas exploration of S1 Member.
引文
[1]刘利.阳信洼陷生物气成藏条件研究.天然气工业,2005,25(10):11～13
[2]邓传伟,李莉华,金银姬等.波形分类技术在储层沉积微相预测中的应用.石油物探,2008,47(3):262～265
[3]朱红涛,陈开远.分频吸收系数技术在储层横向预测中的方法原理.科技进步与对策,2003(增刊):263～264
[2]邓传伟,李莉华,金银姬等.波形分类技术在储层沉积微相预测中的应用.石油物探,2008,47(3):262～265
[3]朱红涛,陈开远.分频吸收系数技术在储层横向预测中的方法原理.科技进步与对策,2003(增刊):263～264
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心