地震资料在地质建模中的应用方法探讨——以旅大27-2油田相建模为例
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摘要
地震资料是稀井网条件下地质建模的重要约束条件,以旅大27-2油田3个油组的相建模为例,论述了当前相建模过程中因地震资料分辨率差异而产生的3种地震资料应用方法:明化镇组(Nm)地震资料品质好,有砂描资料,所以用砂体描述资料控制下的岩相建模方法;馆陶组(Ng)地震资料品质一般,没有砂描资料,所以用概率控制的岩相建模方法;东营组(Ed)地震资料品质差,只能分辨油组轮廓,所以用小层砂体平面控制的岩相建模方法。
Seismic data were important restriction conditions to reduce uncertainty of geological modeling under low controls of wells.The rock facies modeling of three oil formations of Luda 27-2 Oilfield was taken as examples to study the difference of the methods of geological modeling induced by 3 different applications of the seismic data.The first is sand-described control facies modeling of Nm Formation for the seismic data which is precise enough to describe the reservoirs,the facies-probability controlled facies modeling of Ng Formation,of which quality of the seismic data is also fine but there are no sand described data,the data of facies-probability controlled facies modeling and controlled facies modeling of Ed Formation are also poor,it can be used for identifying oil configuration,therefore the rock facies controlled by subzone sand is used for reservoir modeling
Seismic data were important restriction conditions to reduce uncertainty of geological modeling under low controls of wells.The rock facies modeling of three oil formations of Luda 27-2 Oilfield was taken as examples to study the difference of the methods of geological modeling induced by 3 different applications of the seismic data.The first is sand-described control facies modeling of Nm Formation for the seismic data which is precise enough to describe the reservoirs,the facies-probability controlled facies modeling of Ng Formation,of which quality of the seismic data is also fine but there are no sand described data,the data of facies-probability controlled facies modeling and controlled facies modeling of Ed Formation are also poor,it can be used for identifying oil configuration,therefore the rock facies controlled by subzone sand is used for reservoir modeling
引文
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[2]吕晓光,王德发.储层地质模型及随机建模技术[J].大庆石油地质与开发,2002,19(1):10~13.
[3]李少华,张尚锋,张昌民,等.沉积微相控制下的储层物性参数建模[J].江汉石油学院学报,2003,25(1):24~26.
[4]桂峰,黄智辉,马正.利用相控模型进行井间参数预测[J].地球科学——中国地质大学学报,2001,26(1):49~53.
[5]刘文岭.地震约束储层地质建模技术[J].石油学报,2008,29(1):64~67.
[6]吕晓光,张学文,刘合年,等.综合运用地震反演及测井资料建立单砂体骨架模型[J].石油学报,2007,28(6):82~86.
[7]霍春亮,古莉,赵春明,等.基于地震、测井和地质综合一体化的储层精细建模[J].石油学报,2007,28(6):66~71.
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