基于成像测井技术的砂砾岩体识别方法——以东营北带为例
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摘要
东营凹陷北部陡坡带古近纪时期,由于坡陡,近物源、多物源,构造活动强烈,水体变化频繁等特点,发育不同类型的砂砾岩体,成为勘探的重要目标。当前主要是运用地震、常规测井、钻井取心等资料进行沉积模式研究,但存在分辨精度不够、有效储层解释难度大、取心成本高及岩心资料有限等问题。通过对东营北带大量的岩心观察描述,综合利用多种信息,对FMI成像测井资料进行了细致的标定,建立了该区带砂砾岩体典型岩性的成像测井解释图版,为岩心归位及划分砂层组提供了更多的依据。
It were characterized by steep slope,proximal deposit,more sources and type,intense tectonic activity,frequent water body change in Paloaeogene,so it develops different types of sand-conglomerate bodies which become important exploration target in steep slope belt of Dongying depression.at present,depositional model is studied by seismic,conventional log,core,but low resolution,high core cost and limited core data by abundant core observation and description,utilizing different information,and demarcating carefully FMI log data,typical FMI interpretation chart of sand-conglomerate bodies is established,which can provide more help for core homing and division of sand bed set.
It were characterized by steep slope,proximal deposit,more sources and type,intense tectonic activity,frequent water body change in Paloaeogene,so it develops different types of sand-conglomerate bodies which become important exploration target in steep slope belt of Dongying depression.at present,depositional model is studied by seismic,conventional log,core,but low resolution,high core cost and limited core data by abundant core observation and description,utilizing different information,and demarcating carefully FMI log data,typical FMI interpretation chart of sand-conglomerate bodies is established,which can provide more help for core homing and division of sand bed set.
引文
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[3]陈宝宁,王宝言等.济阳坳陷陡坡带层序地层特征[J].油气地质与采收率,2005,12(6):13~15.
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[2]肖焕钦,王宝言等.济阳坳陷陡坡带断裂控砂模式[J].油气地质与采收率,2002,9(5):20~22.
[3]陈宝宁,王宝言等.济阳坳陷陡坡带层序地层特征[J].油气地质与采收率,2005,12(6):13~15.
[4]李清松,潘和平,张荣.电阻率成像测井进展[J].工程地球物理学报,2005,2(4):304~310.
[5]符翔,高振中.FMI测井的地质应用[J].测井技术,1998,22(6):435~438.
[6]耿会聚,王贵文,等.成像测井图像解释模式及典型解释图版研究[J].江汉石油学院学报,2002,24(1):26~29.
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