泊松阻尼因子在平湖地区储层流体检测中的应用——一种定量地震解释的新方法
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摘要
详细介绍了泊松阻尼因子(PDF)的概念,分析了泊松阻尼因子的若干特性,并经实际应用表明泊松阻尼因子对储层流体性质相当敏感,与含水饱和度关系密切,非常适合用于检测储层流体性质和预测含气饱和度。由于泊松阻尼因子仅与纵波阻抗和横波阻抗有关,没有显式的密度项,因此,不需要高角度的叠前道集资料,在一般地震资料品质条件下就可以获得比较稳定的叠前反演结果。在平湖地区的实际应用表明该技术应用效果好,是一种定量地震解释的新手段。
This article elaborates the definition of Poisson Dampening Factor (PDF) in detail and analyzes some characteristics of PDF. Actual application indicated that PDF is very sensitive to the property of reservoir fluid, closely related to water saturation and suitable to be used to detect the property of reservoir fluid and predict water saturation. PDF correlates only to P-Impedance and S-Impedance without explicit density item so that it doesn t need high angle prestack gather data. Therefore, we can get the relatively stable prestack inversion results under the conditions of common seismic data quality. Actual application in Pinghu area indicated that this technology is a new method for quantitative seismic interpretation with desirable results achieved.
This article elaborates the definition of Poisson Dampening Factor (PDF) in detail and analyzes some characteristics of PDF. Actual application indicated that PDF is very sensitive to the property of reservoir fluid, closely related to water saturation and suitable to be used to detect the property of reservoir fluid and predict water saturation. PDF correlates only to P-Impedance and S-Impedance without explicit density item so that it doesn t need high angle prestack gather data. Therefore, we can get the relatively stable prestack inversion results under the conditions of common seismic data quality. Actual application in Pinghu area indicated that this technology is a new method for quantitative seismic interpretation with desirable results achieved.
引文
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[5]张中平,刘建红.四川盆地阆中—广安地区低孔渗储层含气性预测实例[J].中国石油勘探,2011,16(5-6):119～124.
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[8]Qinglong Xia,Lixin Tian,Donghong Zhou,et al.Reservoir prediction using P oisson impedance in Qinhuangdao,Bohai Sea,80Annual International Meeting,SEG,Expanded Abstracts,2010:2261～2264.
[9]Prajnajyoti Mazumdar.Poisson dampening factor:The Leading Edge,2007,26:850～852.
[10]Yeshpal Singh.Lithofacies detection through simultaneous inversion and principal component attributes:The Leading Edge,2007,26:1568～1575.
[11]杨文博,张世鑫,宗兆云.基于叠前地震反演的储层流体识别方法[J].物探化探计算技术,2010,32(6):601～606.
[2]周东红,滕玉波,林桂康,等.叠前反演技术在锦州31-6地区浊积扇砂体含油气性预测中的应用[J].中国石油勘探,2010,15(5):28～32.
[3]巫芙蓉,李亚林,王,等.AVO属性在致密砂岩储层流体检测中的应用[J].天然气工业,2011,31(5):77～79.
[4]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.
[5]张中平,刘建红.四川盆地阆中—广安地区低孔渗储层含气性预测实例[J].中国石油勘探,2011,16(5-6):119～124.
[6]Russell B H,Hedlin K,Hilterman F J.Fluid-property discrimination with AVO:ABiot-Gassmann perspective:Geophysics,2003,68:29～39.
[7]Quakenbush M,Shang B,Tuttle C.Poisson impedance:The Leading Edge,2006,25:128～138.
[8]Qinglong Xia,Lixin Tian,Donghong Zhou,et al.Reservoir prediction using P oisson impedance in Qinhuangdao,Bohai Sea,80Annual International Meeting,SEG,Expanded Abstracts,2010:2261～2264.
[9]Prajnajyoti Mazumdar.Poisson dampening factor:The Leading Edge,2007,26:850～852.
[10]Yeshpal Singh.Lithofacies detection through simultaneous inversion and principal component attributes:The Leading Edge,2007,26:1568～1575.
[11]杨文博,张世鑫,宗兆云.基于叠前地震反演的储层流体识别方法[J].物探化探计算技术,2010,32(6):601～606.
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