碳酸盐岩地层孔隙度测井环境校正方法与应用
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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.
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.
引文
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[8]雷雪,李忠,巫芙蓉,等.正重构结合对川东石炭系储层地震响应特征的分析[J].物探化探计算技术,2003,25(3):207-213.Rei X,Li Z,Wu FR,et al.Are binding on the reconstruction of the Carboniferous reservoirs in eastern Sichuan earthquake response characteristics of the analysis[J].Geophysical and Geochemical Exploration,2003,25(3):207-213.
[9]张永华,陈萍,赵雨晴.基于合成记录的综合层位标定术[J].石油地球物理勘探,2004,38(1):92-98.Zhang YH,Chen P,Zhao YQ.Based on a comprehensive layer of synthetic seismogram calibration technique[J].Petroleum Geophysical Exploration,2004,38(1):92-96.
[10]高杰,谭茂金,钟光海,等.阵列感应测井分辨率匹配方法及应用[J].CT理论与应用研究,2009,18(2):41-49.Gao J,Tan MJ,Zhong GH,et al.Resolution matching method of high induction logging and applications[J].CT Theory and Applications,2009,18(2):41-49.
[2]季玉新,陈娟,谢雄举.测井曲线精细处理解释技术在复杂储层预测中的应用[J].石油物探,2004,43(2):139-143.Ji YX;Chen J,Xie XJ.Application of fine logging data processing and interpretation technology in the prediction of complicated reservoirs[J].Geophysical Prospecting for Petroleum,2004,43(2):139-143.
[3]李洪奇,孙宝佃,王玉敏.双发双收声系扩径段测井响应特征分析[J].测井技术,2005,29(2):105-108.Li HQ,Sun BD,Wang YM.Twin double-expanding section of line shut logging response characteristics[J].Logging Technology,2005,29(2):105-108.
[4]刘浩杰,王延光,王惠.基于井径变化的声波测井时差校正[J].石油物探,2006,45(6):638-644.Liu HJ,Wang YG,Wang H.Based on borehole acoustic logging changes in the time difference correction[J].Geophysical Prospecting for Petroleum,2006,45(6):638-644.
[5]刘中奇,邱广笃.一种新的声波测井曲线环境校正方法[J].测井技术,2000,24(4):283-287.Liu ZQ,Qiu HD.A new method of acoustic logging environment correction[J].Logging Technology,2000,24(4):283-287.
[6]隋志强.随井径与岩性变化的声波时差校正方法探讨[J].石油物探,2008,47(2):201-205.Sui ZQ.Lithology changes with the borehole diameter and the time difference correction of the acoustic waves for petroleum[J].Geophysical Prospecting for Petroleum,2008,47(2):201.
[7]凌云研究组.测井与地震信息标定研究[J].石油地球物理勘探,2004,39(1):68-73.Lingyun Study Group.Logging and seismic calibration study[J].Petroleum Geophysical Exploration,2004,39(1):68-73.
[8]雷雪,李忠,巫芙蓉,等.正重构结合对川东石炭系储层地震响应特征的分析[J].物探化探计算技术,2003,25(3):207-213.Rei X,Li Z,Wu FR,et al.Are binding on the reconstruction of the Carboniferous reservoirs in eastern Sichuan earthquake response characteristics of the analysis[J].Geophysical and Geochemical Exploration,2003,25(3):207-213.
[9]张永华,陈萍,赵雨晴.基于合成记录的综合层位标定术[J].石油地球物理勘探,2004,38(1):92-98.Zhang YH,Chen P,Zhao YQ.Based on a comprehensive layer of synthetic seismogram calibration technique[J].Petroleum Geophysical Exploration,2004,38(1):92-96.
[10]高杰,谭茂金,钟光海,等.阵列感应测井分辨率匹配方法及应用[J].CT理论与应用研究,2009,18(2):41-49.Gao J,Tan MJ,Zhong GH,et al.Resolution matching method of high induction logging and applications[J].CT Theory and Applications,2009,18(2):41-49.
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