地震、测井和地质综合一体化油藏描述与评价——以南堡1号构造东营组一段油藏为例
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摘要
以南堡1号构造东营组一段油藏为例,针对工区油藏特征和现有资料情况,确立地震、测井和地质综合一体化油藏描述和评价思路。通过井-震结合,搭建层序地层格架,进行层序界面解释和层序约束叠前反演,建立工区储集层地质概念模式;利用储集层地质建模软件,建立等时地层框架构造模型和储集层定量地质知识库;通过对比优选随机建模方法,设计9个实现模型,开展确定性条件约束随机建模的沉积相模拟和相控物性模拟,进行油藏储量估算和评价以及主要油砂体精细描述。结果显示,东一段油藏为一受构造控制的层状边水油藏,其砂层厚度大,物性好,发育多套油水系统;9个实现模型所估算的地质储量是一组服从某种统计概率分布的蒙特卡洛实现,利于合理评价油藏储量规模。
Taking the Member 1 oil reservoir of Dongying Formation in Nanpu Sag as an example,this paper puts forward an integrated study method for oil reservoir description and evaluation.Firstly,with the correlation of seismic,log and geological data,the isochronous stratigraphic framework of the oil reservoir is built up,sequence boundaries are interpreted,the sequence constrained prestack seismic inversion is processed,and a geological conceptual model of reservoir is established.Secondly,with the results of prestack seismic inversion and the Petrel software,the structure model of the isochronous stratigraphic framework and the quantitative geological database are built up.Thirdly,through contrasting and selecting the most reasonable method of stochastic modeling,the reservoir facies modeling and the petrophysical modeling with the constraint of facies models are processed,the oil geological reserves are computed and evaluated,and some oil reservoirs are described finely.The study shows that the Member 1 oil reservoir is a layered,structure-controlled,edge water drive reservoir.It has thick sands,good properties,and complicated oil-water systems.The geological reserves estimated by the 9 designed implementation models are the realization of Monte Carlo methods and conform to a certain probability distribution.The models are favorable for the reasonable evaluation of reserves.
Taking the Member 1 oil reservoir of Dongying Formation in Nanpu Sag as an example,this paper puts forward an integrated study method for oil reservoir description and evaluation.Firstly,with the correlation of seismic,log and geological data,the isochronous stratigraphic framework of the oil reservoir is built up,sequence boundaries are interpreted,the sequence constrained prestack seismic inversion is processed,and a geological conceptual model of reservoir is established.Secondly,with the results of prestack seismic inversion and the Petrel software,the structure model of the isochronous stratigraphic framework and the quantitative geological database are built up.Thirdly,through contrasting and selecting the most reasonable method of stochastic modeling,the reservoir facies modeling and the petrophysical modeling with the constraint of facies models are processed,the oil geological reserves are computed and evaluated,and some oil reservoirs are described finely.The study shows that the Member 1 oil reservoir is a layered,structure-controlled,edge water drive reservoir.It has thick sands,good properties,and complicated oil-water systems.The geological reserves estimated by the 9 designed implementation models are the realization of Monte Carlo methods and conform to a certain probability distribution.The models are favorable for the reasonable evaluation of reserves.
引文
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[13]周凤鸣,司兆伟,马越蛟,等.南堡凹陷低电阻率油气层综合识别方法[J].石油勘探与开发,2008,35(6):680-684.Zhou Fengming,Si Zhaowei,Ma Yuejiao,et al.Integratedidentification method for low-resistivity hydrocarbon layers inNanpu Sag[J].Petroleum Exploration and Development,2008,35(6):680-684.
[14]周丽清,熊琦华,吴胜和.随机建模中相模型的优选验证原则[J].石油勘探与开发,2001,28(1):70-71.Zhou Liqing,Xiong Qihua,Wu Shenghe.The principles ofselecting and testifying facies models in stochastic modelling[J].Petroleum Exploration and Development,2001,28(1):70-71.
[2]姚逢昌,甘利灯.地震反演的应用与限制[J].石油勘探与开发,2000,27(2):53-56.Yao Fengchang,Gan Lideng.Application and restraint of seismicinversion[J].Petroleum Exploration and Development,2000,27(2):53-56.
[3]郑晓东,姚逢昌.AVO油藏描述方法[J].世界石油工业,1995,2(4):34-37.Zheng Xiaodong,Yao Fengchang.AVO technique in reservoirdescription[J].World Petroleum Industry,1995,2(4):34-37.
[4]裘怿楠.储层地质模型10年[J].石油学报,2000,21(4):101-104.Qiu Yinan.Development of geological reservoir modeling in pastdecade[J].Acta Petrolei Sinica,2000,21(4):101-104.
[5]吴胜和,金振奎,黄沧钿,等.储层建模[M].北京:石油工业出版社,1999.Wu Shenghe,Jin Zhenkui,Huang Cangdian,et al.Reservoirmodeling[M].Beijing:Petroleum Industry Press,1999.
[6]贾爱林.储层地质模型建立步骤[J].地学前缘,1995,2(4):221-225.Jia Ailin.The steps of reservoir geological modeling[J].EarthScience Frontiers,1995,2(4):221-225.
[7]宋新民,罗凯,张仲宏,等.储集层表征新进展[M].北京:石油工业出版社,2002.Song Xinmin,Luo Kai,Zhang Zhonghong,et al.New advancesin reservoir characterization[M].Beijing:Petroleum IndustryPress,2002.
[8]王家华,张团峰.油气储集层随机建模[M].北京:石油工业出版社,2001.Wang Jiahua,Zhang Tuanfeng.Stochastic modeling ofhydrocarbon reservoir[M].Beijing:Petroleum Industry Press,2001.
[9]吴胜和,熊琦华.储集层建模中随机模型的地质适用性[M].北京:石油工业出版社,1998.Wu Shenghe,Xiong Qihua.Geological applicability of thestochastic model in reservoir modeling[M].Beijing:PetroleumIndustry Press,1998.
[10]汪泽成,郑红菊,徐安娜,等.南堡凹陷源上成藏组合油气勘探潜力[J].石油勘探与开发,2008,35(1):11-16,39.Wang Zecheng,Zheng Hongju,Xu Anna,et al.Oil-gasexploration potential for above-source plays in Nanpu Sag[J].Petroleum Exploration and Development,2008,35(1):11-16,39.
[11]徐安娜,董月霞,邹才能,等.南堡凹陷岩性-地层油气藏区带划分与评价[J].石油勘探与开发,2008,35(3):272-280.Xu Anna,Dong Yuexia,Zou Caineng,et al.Division andevaluation of oil-gas prolific zones for litho-stratigraphic reservoirsin the Nanpu Sag[J].Petroleum Exploration and Development,2008,35(3):272-280.
[12]董月霞,汪泽成,郑红菊,等.走滑断层作用对南堡凹陷油气成藏的控制[J].石油勘探与开发,2008,35(4):424-430.Dong Yuexia,Wang Zecheng,Zheng Hongju,et al.Control ofstrike-slip faulting on reservoir formation of oil and gas in Nanpusag[J].Petroleum Exploration and Development,2008,35(4):424-430.
[13]周凤鸣,司兆伟,马越蛟,等.南堡凹陷低电阻率油气层综合识别方法[J].石油勘探与开发,2008,35(6):680-684.Zhou Fengming,Si Zhaowei,Ma Yuejiao,et al.Integratedidentification method for low-resistivity hydrocarbon layers inNanpu Sag[J].Petroleum Exploration and Development,2008,35(6):680-684.
[14]周丽清,熊琦华,吴胜和.随机建模中相模型的优选验证原则[J].石油勘探与开发,2001,28(1):70-71.Zhou Liqing,Xiong Qihua,Wu Shenghe.The principles ofselecting and testifying facies models in stochastic modelling[J].Petroleum Exploration and Development,2001,28(1):70-71.
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