HDIL自适应井眼校正的变误差反演技术  

Error Scale Changing Technique in Self-adaptive Borehole Correction Method for HDIL

作　　者：汪爱云[1] 张美玲[1] 张军龙[2] 

机构地区：[1]大庆石油管理局钻探集团测井公司,黑龙江大庆163412 [2]大庆石油学院,黑龙江大庆163318

出　　处：《测井技术》2006年第2期129-131,共3页Well Logging Technology

摘　　要：HDIL(Atlas测井公司的一种高分辨率阵列感应成像测井系统)井眼环境校正结果往往制约了其现场应用效果。在建立HDIL自适应井眼校正方法过程中,发现井眼环境不同,要求的反演收敛迭代误差也不同。通过详细分析反映井眼环境特征的参数(包括泥浆电阻率、井眼半径、泥浆电导率与地层电导率的比值)与反演求取井眼信号的迭代误差之间的关系,分别确立了无侵及有侵地层迭代误差的计算方法,从而提出了变误差迭代搜索技术,大大提高了计算井眼信号的精度,经实际测井资料井眼校正处理检验,见到了良好的效果。The borehole corrected result of HDIL often limits the HDIL＇s application effect. In the course of developing HDIL self-adaptive borehole correction method, it is found that different borehole conditions require different inversion iteration errors. Through analyzing the relation between each parameter that reflects borehole conditions （including mud resistivity, borehole radius, borehole-formation contrast） and iteration error in borehole signal derivation from inversion, we determined the method of calculating iteration error for non-invasion and invasion formation respectively, furthermore, put forward changing-error iteration searching solution technique which has improved precision of calculating borehole signal to a great extent, therefore,a better result has been obtained through applying the borehole correction method in practical logging data.

关 键 词：高分辨率阵列感应测井 自适应井眼校正 迭代误差 反演 

分 类 号：P631.811[天文地球—地质矿产勘探]