多属性优选的神经网络技术在鄂尔多斯盆地L区块煤层储层预测中的应用
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摘要
研究区煤层较为发育,且煤层厚度差异大,导致目的层属性值存在区域性差异,采用同一种参数提取属性不能有效表征该区地质体特征;同时由于地震属性值是地质体特征(沉积特征,岩性特征、孔隙结构等)的综合反映,单属性参数具有多解性。在地质体分区的基础上,利用多地震属性优化下的神经网络技术对研究区进行分区砂岩储层预测。实践表明,该技术有效避免了单属性多解性和多属性综合判别精度低的缺点,提高了利用地震属性预测砂岩储层的精度。
Seismic attribute values are usually dependant on some geological parameters,such as sedimentary characteristics,lithology and pore structures.However,as the seismic reflection is a kind of integrated reflection of a geological body,a single attribute parameter may have multiple solutions.On the basis of individual geological body,the Neural network technique optimized with multi-seismic attributes is used by the authors to predict the reservoir in JHER well area.Our results show that this technique may avoid the disadvantages of multiple solution for single attribute,enhance the resolution of multi-attribute discrimination,and thus improve the accuracy and efficiency of seismic reservoir prediction.
Seismic attribute values are usually dependant on some geological parameters,such as sedimentary characteristics,lithology and pore structures.However,as the seismic reflection is a kind of integrated reflection of a geological body,a single attribute parameter may have multiple solutions.On the basis of individual geological body,the Neural network technique optimized with multi-seismic attributes is used by the authors to predict the reservoir in JHER well area.Our results show that this technique may avoid the disadvantages of multiple solution for single attribute,enhance the resolution of multi-attribute discrimination,and thus improve the accuracy and efficiency of seismic reservoir prediction.
引文
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[14]李金泉,范久霄,党丹.曲线重构技术在鄂尔多斯盆地岩性圈闭储层预测中的应用[J].海洋地质前沿,2013,29(6):62-66.
[15]齐颖,胡天乐.三维地震在Q区块侏罗系油气精细储层预测中的应用[J].海洋地质前沿,2015,31(3):49-55.
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[5]卢宝坤,史歌.测井资料与地震属性关系研究综述[J].北京大学学报:自然科学版,2005,41(1):154-160.
[6]陈遵德,朱广生.地震储层预测方法研究进展[J].地球物理学进展,1997,12(4):76-84.
[7]邱立伟,康志江.人工神经网络技术在储层描述中的应用[J].石油实验地质,1999,21(2):166-169.
[8]潘存焕,郭忠铭,王大兴,等.鄂尔多斯盆地上古生界含气砂岩体综合预测目标处理解释技术[J].天然气工业,1998,18(5):5-9.
[9]陈春艳,杜丽筠.鄂北TGM地区地震反射特征研究及有效储层预测[J].海洋地质动态,2008,24(7):36-41.
[10]吴志强,田志福,丁国栋,等.鄂尔多斯盆地塔巴庙工区下石盒子组砂岩储层综合预测技术[J].石油物探,2000,39(3):26-35.
[11]刘炬,齐颖.地震砂体刻画技术在鄂尔多斯盆地宁东26井区储层预测中的应用[J].海洋地质前沿,2016,32(6):64-70.
[12]胡天乐,卫星宇.鄂尔多斯南部H油田三维地震叠前储层预测[J].海洋地质前沿,2016,32(6)::43-49.
[13]杜立筠,吴志强,龙利平.鄂尔多斯盆地中生界低幅构造岩性圈闭油气储层预测技术[J].海洋地质前沿,2013,29(10):59-64.
[14]李金泉,范久霄,党丹.曲线重构技术在鄂尔多斯盆地岩性圈闭储层预测中的应用[J].海洋地质前沿,2013,29(6):62-66.
[15]齐颖,胡天乐.三维地震在Q区块侏罗系油气精细储层预测中的应用[J].海洋地质前沿,2015,31(3):49-55.
[16]齐颖,范久霄,黎小伟,等.振幅属性在M气田盒1段储层预测中的应用[J].海洋地质前沿,2017,33(6):65-70.