锦州地区盐水泥浆井声波曲线的泥岩蚀变校正  

Mudstone alteration correction of acoustic logging curve of saltwater mud wells in Jinzhou area

作　　者：石宁[1,2] 李洪奇[1,2] 罗伟平[1,2] 

机构地区：[1]中国石油大学(北京)地球物理与信息工程学院,北京102249 [2]油气数据挖掘北京市重点实验室,北京102249

出　　处：《西安石油大学学报（自然科学版）》2014年第2期34-36,4,共3页Journal of Xi’an Shiyou University（Natural Science Edition）

基　　金：国家科技重大专项(编号:2011ZX05023-005-006)

摘　　要：为了得到锦州地区盐水泥浆井泥岩蚀变后可靠的时深关系,需要对声波曲线进行校正。校正方法是:根据泥质含量的高低将泥岩分类,并以浸泡时间较短的井作为标准井,对其他井利用均值方差法校正。校正结果表明,校正之后泥岩的声波时差值降低。用校正后的声波测井资料制作的合成地震记录与井旁实际地震道具有良好的对应关系。In Jinzhou area,mudstone alteration makes the acoustic interval transit time of the saltwater mud wells increase. In order to obtain the reliable time- depth relationship,the correction of their acoustic logging curve is necessary. An acoustic interval transit time correction method is put forward: firstly,mudstone is classified according to its mud content,and then for each type of mudstone,the acoustic interval transit time of the well whose soaping time in saltwater mud is shorter is as standard,and the acoustic interval transit time of the other wells is corrected by using mean-variance method. The results show that after the correction,the acoustic interval transit time of mudstone is decreased,and that there is good corresponding relationship between the synthetic seismic record obtained using the corrected acoustic logging data and actual seismic trace near the well.

关 键 词：校正方法 声波曲线 盐水泥浆 锦州地区 泥岩 蚀变 合成地震记录 声波测井资料 

分 类 号：TE121[石油与天然气工程—油气勘探] P631[天文地球—地质矿产勘探]