复杂超深薄互砂岩高分辨率反演预测技术及应用
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摘要
塔河油田石炭系薄互层储层具有埋藏深(4800～5400m)、单砂体薄(3～10m)、砂体分布不稳定等特点。地震资料主频范围为35～41Hz,对应反射层砂岩的主体理论分辨率为26～30m,地震数据无法识别薄砂体。为了解决石炭系薄砂体预测难题,采用了地层序列约束随机优化高分辨率反演技术为主,其它方法为辅的储层预测方法,较好地解决了问题。该方法对当前勘探开发中面临的复杂超深低渗砂泥岩薄互层储层研究具有一定的针对性和适用性。
With the features of deep bury(4800～5400m),thin monolayer(3～10m),and unstable oil sand distribution in the carboniferous system reservoir of Tahe oilfield,the major frequency of seismic data is 35～41Hz,and seismic data cannot identify the thin sand body of 2～6m.To resolve the forecast and explanation of thin sand,we adopted fine resolution inverse technique of bed succession restrictive random sequence optimization approach,supplemented by other inversions.This method has definite contraposition and applicability in researching ultra deep,complex,low permeable thin sand shale alternate layer in present reservoir exploratory development.
With the features of deep bury(4800～5400m),thin monolayer(3～10m),and unstable oil sand distribution in the carboniferous system reservoir of Tahe oilfield,the major frequency of seismic data is 35～41Hz,and seismic data cannot identify the thin sand body of 2～6m.To resolve the forecast and explanation of thin sand,we adopted fine resolution inverse technique of bed succession restrictive random sequence optimization approach,supplemented by other inversions.This method has definite contraposition and applicability in researching ultra deep,complex,low permeable thin sand shale alternate layer in present reservoir exploratory development.
引文
[1]王香文,于常青,董宁,于文芹.储层综合预测技术在鄂尔多斯盆地定北区块的应用[J].石油物探,2006,45(3):267-271.
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[3]Huang,Xuri and Kelkar,M.G.:"Application of combinatorial algorithmsto reservoir description,"Proceedings of 9th SPE/DOE Improve OilRecovery Meeting,Tulsa,1994:46-49.
[4]Huang,Xuri and Kelkar,M.:"Seismic inversion using combinatorialalgorithm-a hybrid scheme,"Proceedings of 66th international SEGannual conference,1996,Denver,152-155.
[5]陈守田,孟宪禄.薄互层储层预测方法[J].石油物探,2004,43(1):33-36.
[6]白斌,周立发,丁国栋,刘彬辉等.储层综合预测技术在太康地区上古生界的应用[J].石油物探,2007,46(3):261-267.
[2]王元君.塔河油田SD地区石炭系卡拉沙依组薄砂体预测[J].石油物探,2008,47(5):488-491.
[3]Huang,Xuri and Kelkar,M.G.:"Application of combinatorial algorithmsto reservoir description,"Proceedings of 9th SPE/DOE Improve OilRecovery Meeting,Tulsa,1994:46-49.
[4]Huang,Xuri and Kelkar,M.:"Seismic inversion using combinatorialalgorithm-a hybrid scheme,"Proceedings of 66th international SEGannual conference,1996,Denver,152-155.
[5]陈守田,孟宪禄.薄互层储层预测方法[J].石油物探,2004,43(1):33-36.
[6]白斌,周立发,丁国栋,刘彬辉等.储层综合预测技术在太康地区上古生界的应用[J].石油物探,2007,46(3):261-267.
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