碳酸盐岩地层孔隙度测井环境校正方法与应用  

Environment Correction and Application of Porosity Logging Data in Carbonate Formations

作　　者：王新娥[1] 谭茂金[2] 

机构地区：[1]中国石化胜利油田测井公司,山东东营257096 [2]地下信息探测技术与仪器教育部重点实验室(中国地质大学),北京100083

出　　处：《CT理论与应用研究（中英文）》2010年第2期43-52,共10页Computerized Tomography Theory and Applications

基　　金：油气资源与探测国家重点实验室开放课题(2009009);国家重大专项大型油气田及煤层气开发(2008ZX05023-005)

摘　　要：地震储层预测时需要高精度的测井数据,对测井曲线不仅在储层处要进行环境校正,而且在非储层处也要做环境校正。为了消除井眼扩径和其他影响因素对测井曲线的影响,针对声波和密度等孔隙度测井提出了一套校正办法。首先要找出测井曲线的失真,然后针对引起失真的原因,分别针对声波测井和密度测井提出具体校正办法,主要包括基于阵列声波测井的声波时差重新提取和其他资料的重构-编辑法。上述方法在川东北碳酸盐岩区块进行了实验,经分析与对比,证明该方法是有效的,思路和方法对其他区块也有借鉴意义。Seismic reservoir prediction requires high-precision logging data, namely Environment correction of logging data is necessary in reservoirs as well as non-reservoirs. To Eliminate the impacts of borehole collapse and other factors on logs, put forward the first to find out the abnormal of log curve, according to the abnormal, a set of correction methods for the sonic logging data and density logging data are proposed of respectively, such as reprocessing of array acoustic logging data and reconstruct-editing method. These methods were be used in carbonate rocks in the northeastern of Sichuan province. The results prove show these methods effective and correct. The ideas and methods are promising for other formations and areas.

关 键 词：储层预测 孔隙度测井 环境校正 重构 

分 类 号：P631.81[天文地球—地质矿产勘探] P536[天文地球—地质学]