多属性综合判识三角洲亚相方法——以临南洼陷双丰三角洲为例
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摘要
三角洲内不同亚相砂体均具备成藏的可能,但其成藏控制因素视沉积相带的不同而各有差异,因此在油气勘探中准确判识三角洲沉积亚相至关重要。本文探讨了在常规地震属性应用效果不理想的情况下,通过总结工区不同相带的砂泥岩速度及岩、电特征,建立不同相带的地震识别模式,在合理的时窗范围内进行地震属性优化,优选出分频、波形及弧长等三种重要属性,对三角洲亚相进行判识。结果表明此法的实际应用效果显著。
It is possible to form reservoir for sandy body with different parfacies of delta, but the reservoir-forming control factor is difference because of different sedimentary facies zones, so it is very important to accurately identify sedimentary parfacies of delta in oil/gas exploration. The paper explored creating seismic mode identifying different facies belts by summarizing velocity and lithologic and electric feature of sand and mud stone in different facies belt of the work zone in a condition that the application effect of conventional seismic attributes is not ideal, carrying out optimization of seismic attributes in a reasonable time-window range, and optimizing the attributes of frequency-division, waveform and arc length to identify delta parfacies, which showed the method having evident effect in practical application.
It is possible to form reservoir for sandy body with different parfacies of delta, but the reservoir-forming control factor is difference because of different sedimentary facies zones, so it is very important to accurately identify sedimentary parfacies of delta in oil/gas exploration. The paper explored creating seismic mode identifying different facies belts by summarizing velocity and lithologic and electric feature of sand and mud stone in different facies belt of the work zone in a condition that the application effect of conventional seismic attributes is not ideal, carrying out optimization of seismic attributes in a reasonable time-window range, and optimizing the attributes of frequency-division, waveform and arc length to identify delta parfacies, which showed the method having evident effect in practical application.
引文
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[16]Brown A R著,严又生译.地震属性及其分类.国外油气勘探,1997,9(4):529~530
[17]印兴耀,周静毅.地震属性优化方法综述.石油地球物理勘探,2005,40(4):482~489
[2]周书欣,赖特V P,普拉特N H等.湖泊沉积体系与油气.北京:科学出版社,1991,137
[3]王良忱,张金亮.沉积环境和沉积相.北京:石油工业出版社,1996,179
[4]赵澄林.沉积学原理.北京:石油工业出版社,2001,91
[5]陆克政,朱筱敏,漆家福.含油气盆地分析.山东东营:石油大学出版社,2001,225
[6]赵澄林.油区岩相古地理.山东东营:石油大学出版社,2001,4
[7]赵澄林,吴崇筠.油区岩相古地理.北京:石油工业出版社,1987,238
[8]冯增昭.单因素分析综合作图法.沉积学报,1992,10(3):70~77
[9]姜在兴.沉积学.北京:石油工业出版社,2003,393~398,491~498
[10]鄢继华,陈世悦.扇三角洲亚相定量划分的思考.沉积学报,2004,22(3):443~448
[11]韩文功,沈财余.陆相断陷盆地复杂地质模型建立与正演模拟.石油地球物理勘探,2006,41(4):396~401
[12]王成彬,顾石庆.地震属性的应用与认识.石油物探,2004,43(增刊):25~27
[13]杨勤勇,徐丽萍.地震勘探技术新进展.勘探地球物理进展,2002,25(1):5~10
[14]胡建.地震波可靠性研究[硕士学位论文].大庆石油学院,2004
[15]鲍祥生,尹成,赵伟等.储层预测的地震属性优选技术研究.石油物探,2006,45(1):28~33
[16]Brown A R著,严又生译.地震属性及其分类.国外油气勘探,1997,9(4):529~530
[17]印兴耀,周静毅.地震属性优化方法综述.石油地球物理勘探,2005,40(4):482~489
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