测井曲线在济阳坳陷中生界地层划分中的应用  

Application of Logging Curves to the Mesozoic Stratum Zonation in Jiyang Depression

作　　者：陈钢花[1] 孙志勇[1] 耿生臣[2] 朱家俊[2] 苏国英[2] 

机构地区：[1]中国石油大学地球资源与信息学院,山东东营257061 [2]胜利油田地质科学研究院,山东东营257061

出　　处：《测井技术》2005年第1期40-42,共3页Well Logging Technology

摘　　要：针对济阳坳陷中生界地层纵向变化大,内部结构复杂,内幕地震表现不清晰,钻井揭露程度低,古生物化石稀少,传统的生物地层划分难度很大,储层识别困难的状况,以岩心分析资料为基础,将层内差异法、极值点法、最大斜率法、最优分割法等方法有机结合,综合运用各种测井资料,实现井剖面地层的自动划分。应用所开发的软件对研究区10多口井的资料进行了处理,取得了良好的地质效果。该方法为缺少古生物化石数据的中生界地层划分提供一种新的思路。Because the formation of Mesozoic group in Jiyang depression is characterized by great vertical changes, complex inner structures, obscure seismic reflection, low reveal of drilling and little obiological fossil , the traditional zonation of biostratigraphy and reservoir recognition are both difficult. Based on core analysis and combined with the intraformation discrepance method, the extreme value point method, the maximum slope method and the optimum partition method, we use all kinds of logging data to automatically classify strata profiles. Log data of more than ten wells in the depression have been processed with the newly developed software,result of which is better. This method provides a new idea to the zonation or classification of the Mesozonic formation that lacks obiological fossil data.

关 键 词：测井曲线 主成份 最优分割法 中生界 地层划分 

分 类 号：TE122.24[石油与天然气工程—油气勘探]