基于合成记录的综合层位标定技术  

Integrative layer-labeling technique based on synthetic seismogram.

作　　者：张永华[1] 陈萍[2] 赵雨晴[2] 朱军[2] 刘景颜 

机构地区：[1]石油大学 [2]河南油田

出　　处：《石油地球物理勘探》2004年第1期92-96,共5页Oil Geophysical Prospecting

摘　　要：地震层位标定是连接地质、测井和地震资料的有效方法。目前实际应用的层位标定方法有很多种 ,而且每一种方法单独应用均存在一定缺陷。为此本文提出了以合成地震记录为基础的地震资料综合层位标定方法 ,其具体思路为 :①建立高精度速度场 ;②以深—时转换为基础 ,确定合成记录与井旁地震道的波组特征对应关系 ,把相应地质层位标定在地震剖面上 ;③以地震剖面上的标志层和主要目的层为标志 ,对由单井标定的地震层序进行井点、线、面的反复循环对比 ,力求使所有井点的层序与其波组特征有统一的对应关系 ;④通过综合分析 ,建立岩性、电性、物性与井旁地震道及其他地震参数之间的对应关系。Seismic layer labeling is an effective method for connecting geologic,logging and seismic data.The resently used layer labeling methods in practice are variety and there are shortcomings if only using each method alone,therefore,the paper presented integrative layer labeling method of seismic data based on synthetic seismogram.Its concrete steps are as follows:①building up high precious velocity field;②taking depth time transform as a basis,determining the corresponding relation of wave group characters between synthetic seismogram and seismic traces near borehole and labeling the seismic profile with corresponding geologic horizons; ③taking the marked bed and major objective events on seismic sections as a mark,repeated correlation of seismic sequence labeled by single well is carried out according to the sequence of single well to line to plane so that the unified corresponding relations between the sequence and the wave group characters have been formed at all well sites;④through synthetic analysis,the corresponding relations between lithologic,electric and physical characters on logging curves and seismic traces near borehole as well as other seismic parameters are created.Application of the method to oil gas exploration and development in Miyang depression has achieved good geologic results.

关 键 词：层位标定 储层预测 层序地层 波组特征 地震勘探 地震资料 油气勘探 

分 类 号：P631.4[天文地球—地质矿产勘探]