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vsp资料在储层预测中的应用

Keywords: 零井源距vsp,非零井源距vsp,横波速度,泊松比,储层预测

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Abstract:

?砂、泥岩地层中储层因含气往往导致纵波速度降低,从而与围岩速度重叠或接近,此时应用常规声阻抗反演方法难以识别储层。测井资料分析发现泊松比能较好地分辨储层和围岩,因此提取并综合利用泊松比参数是识别储层的-个有效方法。本文提出利用零井源距vsp资料拾取的高精度初至获得精细的纵、横波速度,通过转换得到泊松比参数,同时基于非零井源距vsp纵、横波剖面进行纵、横波联合反演,得到纵、横波阻抗和泊松比剖面,通过对泊松比剖面分析可识别有效储层。应用该方法在slg气田进行储层预测,结果与实钻情况吻合,取得了良好效果。

References

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[6]  赵万金,李海亮,史松群等.叠前反演及.avo技术在slu气m的应用.新疆石油地质,2009,30(3);387-389.zhaowanjin,lihailiang,shisongqunctal.applica-tionofprestackinversionandavotosuligegasfield.xinjiangpetroleumgeology,2009,30(3):387-389.
[7]  付深,陈志宏,任科英等.联合应用两种弹性参数组合进行含油性识别—渊西南凹陷渊三段油层识别实践.中国海上油气,2009,21(6);372-375.fuchcn,chcnzhihong,rcnkeyingctal.acom-bipedapplicationoftwoelasticityparameterstoiden-tifyoilbearingintervalsacasestudyofmemberoillayerinwcizhouformation,wcixi'pandepression.chinaoffshoreoilandgas,2009,21(6):372-375.
[8]  王保丽,印兴耀,张繁昌.弹性阻抗反演及应用研究.地球物理学进展,2005,20(3);89-92.wangbaoli,yinxingyao,zhangfanchang.elasticimpedanceinversionanditsapplication.progressin2005.20(3)89-92.
[9]  马建德,张玉珍,土桂华等.非零井源距移距vsp资料在油气检测中的应用.海洋石油,2003,23(增):51~54.majiandc,ghangyuzhcn,wanguuihuactal.theapplicationofnon-zerooffsetvspdatainoilandgasdetection.offshoreoil,2003(sup):5l-54.
[10]  张继国,牟风明.vsp横波速度反演实用性研究[j].石油地球物理勘探.2006,41(6):697-701??浏览
[11]  徐仲达,郝晓红,徐翔之等.用vsp数据中下行p-sv转换波求取横波速度.石油物探,2002,41(3);274-278.

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