高分辨率层序地层格架内储层的综合预测方法
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摘要
以苏丹L盆地G油田辫状河三角洲储层为例,结合地震、测井和地质资料,总结出综合预测砂岩储层的方法。在井震结合划分和建立五级高分辨率层序地层格架的基础上,首先,利用岩心、录井、测井相分析井点沉积微相,并根据三维地震反演数据体和地震属性,从剖面和平面上分析井间砂体分布特征;其次,综合井点信息和平面砂体分布认识,分析各砂组的沉积微相平面展布,编制沉积微相平面展布图;最后,通过测井相、地震反演成果和地震属性相结合,对砂岩储层进行定量预测,编制砂体平面展布图,为油田开发方案编制提供地质依据。
The application of high-resolution sequence stratigraphy remains a big concern in the early stage of development of oil and gas fields.The recent development of high resolution seismic technology together with the accumulation of geological data have made it possible to carry out high-resolution sequence stratigraphy study in the early stage of oilfield development for reservoir prediction.Taking the deltaic reservoir of a braided river in the G oilfield in the L Basin of Sudan as an example,we present in this paper a method to predict the sandstone reservoir by integration of seismic,logging and geological data.Correlation of wells and seismic data leads to the establishment of a five grade framework of high-resolution sequence stratigraphy.Microfacies are defined according to the study of core,mud logging and petrophysics,and the sand distribution pattern between wells is defined with vertical and spatial 3Dseismic inversion data and seismic attributes.Then,microfacies maps are compiled for each formation based on the well data with special concern in the distribution pattern of sand body,and finally a map showing the distribution pattern of sandbodies is made as the tool for reservoir prediction.
The application of high-resolution sequence stratigraphy remains a big concern in the early stage of development of oil and gas fields.The recent development of high resolution seismic technology together with the accumulation of geological data have made it possible to carry out high-resolution sequence stratigraphy study in the early stage of oilfield development for reservoir prediction.Taking the deltaic reservoir of a braided river in the G oilfield in the L Basin of Sudan as an example,we present in this paper a method to predict the sandstone reservoir by integration of seismic,logging and geological data.Correlation of wells and seismic data leads to the establishment of a five grade framework of high-resolution sequence stratigraphy.Microfacies are defined according to the study of core,mud logging and petrophysics,and the sand distribution pattern between wells is defined with vertical and spatial 3Dseismic inversion data and seismic attributes.Then,microfacies maps are compiled for each formation based on the well data with special concern in the distribution pattern of sand body,and finally a map showing the distribution pattern of sandbodies is made as the tool for reservoir prediction.
引文
[1]王红亮,祝永军,格罗斯T A.高分辨率层序地层学——原理及应用[M].北京:地质出版社,2002.
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[5]王焕弟,陈小宏.层序约束储层预测技术在岩性油藏勘探中的应用[J].中国石油勘探,2008,13(4):36-42.
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[7]赖维成,宋章强,周心怀,等.地质-地震储层预测技术及其在渤海海域的应用[J].现代地质,2009,23(5):933-939.
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[11]吴常玉,肖淑明,王立军.井震约束下的高分辨率层序地层学对比方法及其应用[J].油气地质与采收率,2009,16(3):61-64.
[12]童晓光,徐志强,史卜庆,等.苏丹迈卢特盆地石油地质特征及成藏模式[J].石油学报,2006,27(2):2-10.
[13]赵国良,穆龙新,计智峰,等.苏丹M盆地P油田退积型辫状三角洲沉积体系储集层综合预测[J].石油勘探与开发,2005,32(6):125-128.
[14]陈恭洋,陈玲,朱洁琼,等.地震属性分析在河流相储层预测中的应用[J].西南石油大学学报:自然科学版,2012,34(3):1-8.
[15]沈杨.河流相储层综合预测方法探索[J].沉积与特提斯地质,2002,22(4):84-91.
[2]邓宏文.高分辨率层序地层学应用中的问题探析[J].古地理学报,2009,11(5):471-480.
[3]袁新涛,沈平平.高分辨率层序框架内小层综合对比方法[J].石油学报,2007,28(6):87-91.
[4]尹太举,张昌民,李中超,等.层序地层学在油田开发中的应用实践[J].沉积学报,2005,23(4):664-670.
[5]王焕弟,陈小宏.层序约束储层预测技术在岩性油藏勘探中的应用[J].中国石油勘探,2008,13(4):36-42.
[6]崔永谦,邵龙义,卢永和,等.陆相断陷不同类型沉积砂体地震储层预测方法[J].中国石油勘探,2010,2(11):55-58.
[7]赖维成,宋章强,周心怀,等.地质-地震储层预测技术及其在渤海海域的应用[J].现代地质,2009,23(5):933-939.
[8]王西文.精细地震解释技术在油田开发中后期的应用[J].石油勘探与开发,2004,31(6):58-61.
[9]吕新华,邹伟.东濮凹陷开发地震的应用及前景[J].石油勘探与开发,2004,31(3):79-81.
[10]张占松,朱留方,陈莹.井震结合井间等时地层对比方法及其应用[J].地球学报,2003,16(3):61-64.
[11]吴常玉,肖淑明,王立军.井震约束下的高分辨率层序地层学对比方法及其应用[J].油气地质与采收率,2009,16(3):61-64.
[12]童晓光,徐志强,史卜庆,等.苏丹迈卢特盆地石油地质特征及成藏模式[J].石油学报,2006,27(2):2-10.
[13]赵国良,穆龙新,计智峰,等.苏丹M盆地P油田退积型辫状三角洲沉积体系储集层综合预测[J].石油勘探与开发,2005,32(6):125-128.
[14]陈恭洋,陈玲,朱洁琼,等.地震属性分析在河流相储层预测中的应用[J].西南石油大学学报:自然科学版,2012,34(3):1-8.
[15]沈杨.河流相储层综合预测方法探索[J].沉积与特提斯地质,2002,22(4):84-91.
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