摘要
在岩性油气藏的勘探过程中 ,利用测井资料标定地震解释层位是一项最基础的工作 ,然而传统的标定方法主要存在以下问题 :①井和地面地震间的标定存在一定的多解性 ,特别是在时间标定问题上比较突出 ;②即使井旁信息能够准确标定 ,但对于空间变化剧烈的岩性储层而言 ,无法精确拾取储层的顶、底界面 ,也就无法有效地将井信息向空间外推 ,从而无法有效地沿层提取地震属性 ,更无法进行岩性体的有效解释。针对以上存在的问题 ,结合岩性油气藏的特点 ,本文提出了一种新的测井与地震数据间的标定模式 ,即基于参考标准层的标定和基于参考标准层的地震属性提取和解释思路。参照参考标准层的定义 ,本文给出了一套基于参考标准层提取地震属性的具体方法。通过实际测井数据和地震数据的标定 ,以及基于参考标准层的地震属性的提取和解释 。
During the process of lithologic oil gas exploration,using logging data to label the seismic interpreting horizons is a most basic job.But traditional labeling methods mainly have following problems:①there many solutions by using logging data to label surface seismic data,especially the problem of labeling time is more conspicuous;②even the horizons nearby the well can be correctly labeled,but for the rapidly changed lithologic reservoir in space,the top and bottom of the reservoir can not be correctly detected,which cannot effectively extrapolate the logging information,resulted in unable to detect the seismic attributes along the horizons and effectively interpret the lithologic body.In view of above existed problems and combining with the feature of lithologic oil gas reservoir,the paper presented a new mode using logging data to label the seismic data,which is the label based on 'referential maker bed'and based on the thought that the detection and interpretation of attributes is to use referential marker bed.Defined the 'referential maker bed,the paper gave a set of concrete methods for detecting the seismic attributes based on referential maker bed.Through using real logging data for labeling seismic data and detection and interpretation of seismic attributes based on referential maker bed,the method finally gained an ideal lithologic interpreted results.
出处
《石油地球物理勘探》
EI
CSCD
北大核心
2004年第1期68-74,共7页
Oil Geophysical Prospecting
