大庆榆树林油田地震资料反演技术应用评价
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摘要
为扩大油田产能建设规模、丰富开发地震解释方法,本文把不具备储层速度信息的伽玛曲线、电阻率曲线通过一定的转换,实现作为伪声波曲线进行地震反演的目的,使地震反演数据体加入泥质含量及含油性两种信息,有助于进行储层砂岩厚度预测及储层含油性预测。几种地震反演数据体层位标定以声波曲线标定为准,综合预测含油富集区精度可达80%。通过评比地震反演方法得知:波阻抗地震反演可以大幅提高地震解释纵向分辨率;伽玛曲线作为伪声波曲线直接反演是可行的,在预测砂岩方面有优势;电阻率曲线可转换成伪声波曲线,该类反演数据体在预测含油性方面具有独特的优势。
In order to enlarge capacity building size and to enrich exploitation seismic interpretation methods,gamma log curve without container rock velocity information and resistivity logging curve were converted to realize the purpose of seismic inversion as pseudo sound wave curve,and to make the seismic inversion data volume have information of shale content and oiliness and help to predict the sandstone thickness and oiliness of reservoir bed.The horizon standardization of several seismic inversion data volumes were calibrated as sound wave curve.The precision of oil & gas enriching section aggregate prediction can be up to 80%.Results of seismic inversion methods evaluation show that the longitudinal resolution of seismic interpretation can be improved obviously by wave impedance seismic inversion;it is feasible to invert gamma log curve to sound wave curve and has superiority in prediction sandstone;the resistivity logging curve can be inverted to sound wave curve and this seismic inversion data volume has unique advantage in prediction oiliness of reservoir bed.
In order to enlarge capacity building size and to enrich exploitation seismic interpretation methods,gamma log curve without container rock velocity information and resistivity logging curve were converted to realize the purpose of seismic inversion as pseudo sound wave curve,and to make the seismic inversion data volume have information of shale content and oiliness and help to predict the sandstone thickness and oiliness of reservoir bed.The horizon standardization of several seismic inversion data volumes were calibrated as sound wave curve.The precision of oil & gas enriching section aggregate prediction can be up to 80%.Results of seismic inversion methods evaluation show that the longitudinal resolution of seismic interpretation can be improved obviously by wave impedance seismic inversion;it is feasible to invert gamma log curve to sound wave curve and has superiority in prediction sandstone;the resistivity logging curve can be inverted to sound wave curve and this seismic inversion data volume has unique advantage in prediction oiliness of reservoir bed.
引文
[1]刘雯林.油气田开发地震技术[M].北京:石油工业出版社,1996:85-92,113-115.LIU Wen-lin.Seismic technique in oilfield development[M].Beijing:Petroleum Industry Press,1996:85-92,113-115.
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[3]韩小俊,赵宪生,王建民.波阻抗反演结果的影响因素分析[J].大庆石油地质与开发,2004,24(4):92-93.HAN Xiao-jun,ZHAO Xian-sheng,WANG Jian-min.A-nalysis of influential factors for wave impedance inversionresults[J].Geology&Oilfield Development in Daqing,2004,24(4):92-93.
[4]徐怀大,王世凤,陈开远.地震地层学解释基础[M].武汉:中国地质大学出版社,1990:1-131.XUHuai-da,WANG Shi-feng,CHEN Kai-yuan.Seismicstratigraphy interpretation principle[M].Wuhan:ChinaUniversity of Geosciences Press,1990:1-131.
[5]Brown A R.三维地震资料解释[M].北京:石油工业出版社,1996:30-35.Brown A R.3-D seismic data interpretation[M].Bei-jing:Petroleum Industry Press,1996:30-35.
[6]朱筱敏.层序地层学[M].东营:中国石油大学出版社,2003:1-207.ZHU Xiao-min.Sequence stratigraphy[M].Dongying:China Petroleum University Press,2003:1-207.
[2]张喜强,李彦强,叶明标,等.多井测井约束反演薄互层储集体技术研究[J].大庆石油地质与开发,2004,23(3):87-88.ZHANG Xi-qiang,LI Yan-qiang,YE Ming-biao,et al.Research on thin interbedding reservoir by multi-well log-ging constraint inversion[J].Petroleum Geology&Oil-field Development in Daqing,2004,23(3):87-88.
[3]韩小俊,赵宪生,王建民.波阻抗反演结果的影响因素分析[J].大庆石油地质与开发,2004,24(4):92-93.HAN Xiao-jun,ZHAO Xian-sheng,WANG Jian-min.A-nalysis of influential factors for wave impedance inversionresults[J].Geology&Oilfield Development in Daqing,2004,24(4):92-93.
[4]徐怀大,王世凤,陈开远.地震地层学解释基础[M].武汉:中国地质大学出版社,1990:1-131.XUHuai-da,WANG Shi-feng,CHEN Kai-yuan.Seismicstratigraphy interpretation principle[M].Wuhan:ChinaUniversity of Geosciences Press,1990:1-131.
[5]Brown A R.三维地震资料解释[M].北京:石油工业出版社,1996:30-35.Brown A R.3-D seismic data interpretation[M].Bei-jing:Petroleum Industry Press,1996:30-35.
[6]朱筱敏.层序地层学[M].东营:中国石油大学出版社,2003:1-207.ZHU Xiao-min.Sequence stratigraphy[M].Dongying:China Petroleum University Press,2003:1-207.
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