应用地震解释技术识别湖底扇——以克拉玛依油田为例
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摘要
湖底扇已成为岩性油气藏勘探的重要领域。以克拉玛依油田中拐五-八区克81井东区二叠系下乌尔禾组湖底扇的识别为例,首先,建立湖底扇的地震识别模式,在深湖-半深湖亚相区域,根据地震反射波同相轴的外形反射特征及内部反射结构特征进行湖底扇的识别,再综合运用三维地震多属性分析、谱分解、层拉平等多种地震解释技术对预测的湖底扇加以佐证,并确定其平面的展布范围,从而验证了该方法的适用性。
Sublacustrine fan is a kind of deposit of gravity flow developed on slope of deep lake-bathyal subfacies area,which occurs widely in most of the continental sedimentary basins.In view of its distribution in group,it has become a major domain for petroleum exploration of lithologic reservoirs.Taking the sublacustrine fan of Lower Wuerhe formation of Permian in K-81 Well east area of Karamay oilfield as an example,this paper presents the seismic identification model for the sublacustrine in deep lake-bathyal subfacies area from the outside reflection feature and inner reflected structure of the seismic reflection event,integrated with seismic multi-attribute analysis,spectrum decomposition and layer flattening techniques for verification,and finally confirms its range in plane distribution.
Sublacustrine fan is a kind of deposit of gravity flow developed on slope of deep lake-bathyal subfacies area,which occurs widely in most of the continental sedimentary basins.In view of its distribution in group,it has become a major domain for petroleum exploration of lithologic reservoirs.Taking the sublacustrine fan of Lower Wuerhe formation of Permian in K-81 Well east area of Karamay oilfield as an example,this paper presents the seismic identification model for the sublacustrine in deep lake-bathyal subfacies area from the outside reflection feature and inner reflected structure of the seismic reflection event,integrated with seismic multi-attribute analysis,spectrum decomposition and layer flattening techniques for verification,and finally confirms its range in plane distribution.
引文
[1]赵澄林,朱筱敏,等.沉积岩石学[M.]北京:石油工业出版社,2001:311-312.
[2]苏朝光,刘怀山,王树华,等.深水浊积扇成藏地质条件及地震描述技术[J.]天然气工业,2008,28(4):33-36.
[3]牛富玲.现河地区滑塌浊积岩油藏勘探技术[J.]断块油气田,2005,12(1):16-19.
[4]李强,辛仁臣,杨玉峰.英台—大安地区坡折带对姚家组下部沉积的控制[J.]大庆石油地质与开发,2004,23(3):17-19.
[5]张军华,朱焕,高荣涛,等.地震符合属性-地震属性的提取与解释新方法[J.]新疆石油地质,20072,8(4):494-496.
[6]杨林.地震频谱分解技术应用中有关问题的讨论[J.]石油物探,2008,47(4):405-409.
[2]苏朝光,刘怀山,王树华,等.深水浊积扇成藏地质条件及地震描述技术[J.]天然气工业,2008,28(4):33-36.
[3]牛富玲.现河地区滑塌浊积岩油藏勘探技术[J.]断块油气田,2005,12(1):16-19.
[4]李强,辛仁臣,杨玉峰.英台—大安地区坡折带对姚家组下部沉积的控制[J.]大庆石油地质与开发,2004,23(3):17-19.
[5]张军华,朱焕,高荣涛,等.地震符合属性-地震属性的提取与解释新方法[J.]新疆石油地质,20072,8(4):494-496.
[6]杨林.地震频谱分解技术应用中有关问题的讨论[J.]石油物探,2008,47(4):405-409.
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