利用测井资料精细描述J×1井井旁构造形态
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摘要
根据川东北地区碳酸盐岩地层沉积特征及高陡构造特点,介绍了以测井资料为主,充分结合地质与地震信息分析复杂构造带井周构造形态的方法。针对J×1井嘉陵江组地层厚度增厚的复杂情况,运用测井资料进行精细对比和地层倾角拾取等方法进行构造综合分析认为,主断层是控制井周构造形态的关键,由此弄清楚了其复杂的构造特征,建立了该井井旁构造地质模型。从地层的变形特征和延伸的范围看,该断层对目的层圈闭具有一定的控制作用。将测井相与地层倾角矢量模式结合以及将区域地质规律与测井解释相结合对单井构造进行研究的方法提高了解释的精度和置性度,可以弥补地震资料的不足,为地震资料的重新处理提供准确的构造模型。
According to the comprehensive analysis of the characteristics of carbonate formation and high-steep structure,analysed are the complex downhole structure shapes with log data,geologic data and seismic data.The strata in well J×1 in Jialingjiang formation in Lower Triassic are thickening.The fine small strata correlations and strata dip picking with log data are used for borehole surroundings structure analyses,which proves that the main fault is the key to control the structure shapes adjacent the well.Based on the above analyses,the structure around the well becomes clearer,and the geologic interpretation model has been built for the structure.The formation deformation and extensional range indicate this fault,in some degree,controls the target zone closure.A combination of log facies and strata dip vector interpretations together with geologic-log interpretation is a good help to improving precision and confidence level of single well structure interpretation,which provides rich geologic structure information for seismic data reprocessing and reinterpretation.
According to the comprehensive analysis of the characteristics of carbonate formation and high-steep structure,analysed are the complex downhole structure shapes with log data,geologic data and seismic data.The strata in well J×1 in Jialingjiang formation in Lower Triassic are thickening.The fine small strata correlations and strata dip picking with log data are used for borehole surroundings structure analyses,which proves that the main fault is the key to control the structure shapes adjacent the well.Based on the above analyses,the structure around the well becomes clearer,and the geologic interpretation model has been built for the structure.The formation deformation and extensional range indicate this fault,in some degree,controls the target zone closure.A combination of log facies and strata dip vector interpretations together with geologic-log interpretation is a good help to improving precision and confidence level of single well structure interpretation,which provides rich geologic structure information for seismic data reprocessing and reinterpretation.
引文
[1]司马立强.测井地质应用技术:石油地质学[M].北京:石油工业出版社,2002.
[2]陆基孟,等.地震勘探原理(下)[M].东营:中国石油大学出版社,1993.
[3]宋鸿林,纪克诚.构造地质学[M].北京:地质出版社,1981.
[4][法]0塞拉.测井资料地质解释[M].北京:石油工业出版社,1992.
[5]吴菊仙,张树东.六臂倾角计算方法及应用[J].测井技术,1996,20(1):32-36.
[6]李国平,等.测井地质及油气评价新技术[M].北京:石油工业出版社,1995.
[7]司马立强.测井资料在川东高陡构造井周构造形态精细解释中的应用[J].天然气工业,1996,16(4).
[2]陆基孟,等.地震勘探原理(下)[M].东营:中国石油大学出版社,1993.
[3]宋鸿林,纪克诚.构造地质学[M].北京:地质出版社,1981.
[4][法]0塞拉.测井资料地质解释[M].北京:石油工业出版社,1992.
[5]吴菊仙,张树东.六臂倾角计算方法及应用[J].测井技术,1996,20(1):32-36.
[6]李国平,等.测井地质及油气评价新技术[M].北京:石油工业出版社,1995.
[7]司马立强.测井资料在川东高陡构造井周构造形态精细解释中的应用[J].天然气工业,1996,16(4).
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