东营凹陷浊积砂体叠后地震属性与储层物性相关性研究
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摘要
东营凹陷牛庄洼陷沙河街组三段是典型的浊积砂体岩性油藏发育层段,地质构造相对简单。以一个钻探了20多口井的浊积砂体油藏为例,通过大量实测的砂层厚度、孔隙度、渗透率等物性参数和反射振幅、频率、能量等地震属性参数的统计分析,深入研究了该浊积砂体储层物性参数、地震属性及两者之间的相关性。研究结果表明:①孔隙度与渗透率、砂体厚度与砂层厚度、泥质含量与孔隙度等有较好的相关性;②振幅、能量类属性之间相关性较好,主频率与瞬时频率线性相关,但相关系数较低;③地震属性与储层物性之间存在一定的相关性,不同地震属性组合后与储层物性的相关性有很大变化;④样本的数量和分布对统计结果有较大的影响。基于这些认识,指导东营北带盐家-永安地区的岩性油气藏预测,计算的砂体孔隙度平均误差小于7%;史南地区浊积砂体储层物性的预测也取得良好效果。
The third member of the Shahejie Formation in Niuzhuang sag of Dongying Depression is typical for developing turbidite sandstone lithologic reservoirs with relatively simple structures.Take a turbidite sandstone reservoir with more than twenty wells as an example,we carried out statistical analysis on measured reservoir physical properties(sandstone thickness,porosity,permeability,etc) and post-stack seismic attributes(reflection amplitude,frequency,energy,etc) and their correlation.The results show that:①some pairs of physical properties has good correlation,such as porosity and permeability,sand-bodies thickness and sand-layer thickness,shale content and porosity;②the correlation between amplitude and energy is good,and dominant frequency and instantaneous frequency exist a linear relationship but the coefficient is low;③there are certain correlations between seismic attributes and the reservoir physical properties,but the correlation coefficients change greatly;④the number and distribution of samples have serious influence on statistic result.The above recognitions guided the prediction of lithologic reservoir in Yanjia-Yongan area of northern Dongying Depression.The average error of the achieved sand porosity is smaller than 7%.Meanwhile,the prediction result of physical properties of turbidite sandstone reservoir in Shinan area was remarkable.
The third member of the Shahejie Formation in Niuzhuang sag of Dongying Depression is typical for developing turbidite sandstone lithologic reservoirs with relatively simple structures.Take a turbidite sandstone reservoir with more than twenty wells as an example,we carried out statistical analysis on measured reservoir physical properties(sandstone thickness,porosity,permeability,etc) and post-stack seismic attributes(reflection amplitude,frequency,energy,etc) and their correlation.The results show that:①some pairs of physical properties has good correlation,such as porosity and permeability,sand-bodies thickness and sand-layer thickness,shale content and porosity;②the correlation between amplitude and energy is good,and dominant frequency and instantaneous frequency exist a linear relationship but the coefficient is low;③there are certain correlations between seismic attributes and the reservoir physical properties,but the correlation coefficients change greatly;④the number and distribution of samples have serious influence on statistic result.The above recognitions guided the prediction of lithologic reservoir in Yanjia-Yongan area of northern Dongying Depression.The average error of the achieved sand porosity is smaller than 7%.Meanwhile,the prediction result of physical properties of turbidite sandstone reservoir in Shinan area was remarkable.
引文
[1]马在田.关于油气开发地震学的思考[J].天然气工业,2004,24(6):43-46Ma Z T.Some thoughts on petroleum developmentseismology[J].Natural Gas Industry,2004,24(6):43-46
[2]曹辉.关于地震属性应用的几点认识[J].勘探地球物理进展,2002,25(5):18-22Cao H.Discussion on the application of seismic at-tributes[J].Progress in Exploration Geophysics,2002,25(5):18-22
[3]张建宁.牛庄洼陷浊积岩砂体储层物性地震预测[J].石油地球物理勘探,2005,40(6):551-555Zhang J N.Seismic prediction of physical propertyfor turbidite sand body reservoir in Niuzhuang sub-sag[J].Oil Geophysical Prospecting,2005,40(6):551-555
[4]刘文岭,牛彦良,李刚,等.多信息储层预测地震属性提取与有效性分析方法[J].石油物探,2002,41(1):100-106Liu W L,Niu Y L,Li G,et al.Seismic attribute ex-traction and effectiveness analysis of multi-attributereservoir prediction[J].Geophysical Prospecting forPetroleum,2002,41(1):100-106
[5]乐友喜,王永刚,张军华.由地震属性向储层参数转换的综合效果分析[J].石油物探,2002,41(2):202-206Yue Y X,Wang Y G,Zhang J H.A comprehensiveeffect analysis of conversion from seismic attributesto reservoir parameters[J].Geophysical Prospectingfor Petroleum,2002,41(2):202-206
[6]时华星,曹建军,伍向阳.济阳坳陷下第三系岩石地震波传播速度分析[J].油气地质与采收率,2004,4(4):28-30Shi H X,Cao J J,Wu X Y.Analysis on propagationvelocity of seismic wave of Eogene rocks in Jiyangdepression[J].Oil&Gas Recovery Technology,2004,4(4):28-30
[7]黄中玉.基于岩石物理模型和谱分解的储层描述技术[J].勘探地球物理进展,2006,29(1):62-69Huang Z Y.Reservoir characterization techniquesbased on rock physics and spectral decomposition[J].Progress in Exploration Geophysics,2006,29(1):62-69
[8]雷怀彦,吉利明.储层定量描述的新方法——成因法[J].天然气地球科学,1995,32(6):26-29Lei H Y,Ji L M.The new method of reservoir quan-titative description-genetic method[J].Natural GasGeoscience,1995,32(6):26-29
[9]陈军,陈岩.地震属性分析在储层预测中的应用[J].石油物探,2001,40(3):94-111Chen J,Chen Y.Application of seismic attribute a-nalysis in reservoir prediction[J].Geophysical Pros-pecting for Petroleum,2001,40(3):94-111
[10]黄真萍,王晓华,王云专.薄层地震属性参数分析和厚度预测[J].石油物探,1997,36(3):28-38Huang Z P,Wang X H,Wang Y Z.Parameter analy-sis of seismic attributes and thickness prediction forthin bed[J].Geophysical Prospecting for Petroleum,1997,36(3):28-38
[11]王永刚,乐友喜,刘伟,等.地震属性与储层特征的相关性研究[J].石油大学学报(自然科学版),2004,28(1):26-31Wang Y G,YUE Y X,Liu W,et al.Relativity be-tween seismic attributes and reservoir characters[J].Journal of the University of Petroleum,2004,28(1):26-31
[12]何碧竹,周杰,汪功怀.利用多元地震属性预测储层信息[J].石油地理物理勘探,2003,38(3):258-262He B Z,Zhou J,Wang G H.Using multivariate seis-mic attributions to predict reservoir information[J].Oil Geophysical Prospecting,2003,38(3):258-262
[13]史松群,赵玉华.苏里格气田低阻砂岩储层的含气性预测研究[J].石油地球物理勘探,2003,38(1):77-83Shi S Q,Zhao Y H.Research on gas-bearing predic-tion using AVO in sandstone reservoir with low-im-pedance,Sulige gas field[J].Oil Geophysical Pros-pecting,2003,38(1):77-83
[14]马如辉,张平.利用波阻抗反演预测地层孔隙率[J].石油地球物理勘探,2002,37(5):537-540Ma R H,Zhang P.Study of method for prediction offormation porosity by wave impedance inversion[J].Oil Geophysical Prospecting,2002,37(5):537-540
[2]曹辉.关于地震属性应用的几点认识[J].勘探地球物理进展,2002,25(5):18-22Cao H.Discussion on the application of seismic at-tributes[J].Progress in Exploration Geophysics,2002,25(5):18-22
[3]张建宁.牛庄洼陷浊积岩砂体储层物性地震预测[J].石油地球物理勘探,2005,40(6):551-555Zhang J N.Seismic prediction of physical propertyfor turbidite sand body reservoir in Niuzhuang sub-sag[J].Oil Geophysical Prospecting,2005,40(6):551-555
[4]刘文岭,牛彦良,李刚,等.多信息储层预测地震属性提取与有效性分析方法[J].石油物探,2002,41(1):100-106Liu W L,Niu Y L,Li G,et al.Seismic attribute ex-traction and effectiveness analysis of multi-attributereservoir prediction[J].Geophysical Prospecting forPetroleum,2002,41(1):100-106
[5]乐友喜,王永刚,张军华.由地震属性向储层参数转换的综合效果分析[J].石油物探,2002,41(2):202-206Yue Y X,Wang Y G,Zhang J H.A comprehensiveeffect analysis of conversion from seismic attributesto reservoir parameters[J].Geophysical Prospectingfor Petroleum,2002,41(2):202-206
[6]时华星,曹建军,伍向阳.济阳坳陷下第三系岩石地震波传播速度分析[J].油气地质与采收率,2004,4(4):28-30Shi H X,Cao J J,Wu X Y.Analysis on propagationvelocity of seismic wave of Eogene rocks in Jiyangdepression[J].Oil&Gas Recovery Technology,2004,4(4):28-30
[7]黄中玉.基于岩石物理模型和谱分解的储层描述技术[J].勘探地球物理进展,2006,29(1):62-69Huang Z Y.Reservoir characterization techniquesbased on rock physics and spectral decomposition[J].Progress in Exploration Geophysics,2006,29(1):62-69
[8]雷怀彦,吉利明.储层定量描述的新方法——成因法[J].天然气地球科学,1995,32(6):26-29Lei H Y,Ji L M.The new method of reservoir quan-titative description-genetic method[J].Natural GasGeoscience,1995,32(6):26-29
[9]陈军,陈岩.地震属性分析在储层预测中的应用[J].石油物探,2001,40(3):94-111Chen J,Chen Y.Application of seismic attribute a-nalysis in reservoir prediction[J].Geophysical Pros-pecting for Petroleum,2001,40(3):94-111
[10]黄真萍,王晓华,王云专.薄层地震属性参数分析和厚度预测[J].石油物探,1997,36(3):28-38Huang Z P,Wang X H,Wang Y Z.Parameter analy-sis of seismic attributes and thickness prediction forthin bed[J].Geophysical Prospecting for Petroleum,1997,36(3):28-38
[11]王永刚,乐友喜,刘伟,等.地震属性与储层特征的相关性研究[J].石油大学学报(自然科学版),2004,28(1):26-31Wang Y G,YUE Y X,Liu W,et al.Relativity be-tween seismic attributes and reservoir characters[J].Journal of the University of Petroleum,2004,28(1):26-31
[12]何碧竹,周杰,汪功怀.利用多元地震属性预测储层信息[J].石油地理物理勘探,2003,38(3):258-262He B Z,Zhou J,Wang G H.Using multivariate seis-mic attributions to predict reservoir information[J].Oil Geophysical Prospecting,2003,38(3):258-262
[13]史松群,赵玉华.苏里格气田低阻砂岩储层的含气性预测研究[J].石油地球物理勘探,2003,38(1):77-83Shi S Q,Zhao Y H.Research on gas-bearing predic-tion using AVO in sandstone reservoir with low-im-pedance,Sulige gas field[J].Oil Geophysical Pros-pecting,2003,38(1):77-83
[14]马如辉,张平.利用波阻抗反演预测地层孔隙率[J].石油地球物理勘探,2002,37(5):537-540Ma R H,Zhang P.Study of method for prediction offormation porosity by wave impedance inversion[J].Oil Geophysical Prospecting,2002,37(5):537-540
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