基于沉积特征分区域的多元地震属性储层定量预测方法
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摘要
常规多元地震属性储层定量预测技术是一种快捷有效的储层预测方法,然而对于覆盖面积较大、沉积环境较复杂的地区,该法的预测精度就会明显降低。为此,本文提出了基于沉积特征分区域的多元地震属性储层定量预测方法,首先利用地震波形分类技术将研究区按沉积特征划分为不同区域,然后按区域分别统计多元地震属性与储层信息的关系并进行线性拟合,最终将各区域拟合结果综合为全区储层信息预测结果。在松辽盆地北部大庆长垣以东徐家围子地区登娄库组二段储层预测中,利用104口井砂岩数据及优选的7种地震属性,采用逐步线性回归法进行全区拟合,其相关系数仅为0.48;采用基于沉积特征分区域的多元地震属性储层定量预测方法进行全区拟合,相关系数达0.83,且预测结果符合地质认识及沉积规律。
Conventional multiple seismic attributes quantitative reservoir prediction method are fast and effective.However the accuracy of this method would decrease if the study area is large and depositional environment is complex.To this end,the paper proposes a quantitative reservoir prediction method by multiple-seismic-attributes based on dividing the study area to different regions by depositional characteristics.Firstly,the study area is divided into different regions according to their depositional characteristics by seismic waveform classification,and then linear fit is progressed between multiple seismic attributes and reservoir information in different regions,finally,fitting results of different regions are synthesized as the predicting results of reservoir information in the whole area.The reservoir prediction of Denglouku formation in Xujiaweizi area,east of Daqing placanticline in the north of Songliao Basin,was made.The sandstone data of 104 wells and 7 optimized seismic attributes were used,the fitting degree was only 0.48 by the gradual linear regression method,which was increased to 0.83 by the multiple seismic attributes quantitative reservoir prediction method based on dividing regions according to sedimentary characteristics,at the same time the predicted results agreed with the sedimentary laws and geological knowledge.
Conventional multiple seismic attributes quantitative reservoir prediction method are fast and effective.However the accuracy of this method would decrease if the study area is large and depositional environment is complex.To this end,the paper proposes a quantitative reservoir prediction method by multiple-seismic-attributes based on dividing the study area to different regions by depositional characteristics.Firstly,the study area is divided into different regions according to their depositional characteristics by seismic waveform classification,and then linear fit is progressed between multiple seismic attributes and reservoir information in different regions,finally,fitting results of different regions are synthesized as the predicting results of reservoir information in the whole area.The reservoir prediction of Denglouku formation in Xujiaweizi area,east of Daqing placanticline in the north of Songliao Basin,was made.The sandstone data of 104 wells and 7 optimized seismic attributes were used,the fitting degree was only 0.48 by the gradual linear regression method,which was increased to 0.83 by the multiple seismic attributes quantitative reservoir prediction method based on dividing regions according to sedimentary characteristics,at the same time the predicted results agreed with the sedimentary laws and geological knowledge.
引文
[1]何碧竹,周杰,汪功怀.利用多元地震属性预测储层信息.石油地球物理勘探,2003,38(3):258～262He Bizhu,Zhou Jie,Wang Gonghuai.Using multiva-riate seismic attributions to predict reservoir informa-tion.OGP,2003,38(3):258～262
[2]黄真萍,王晓华,王云专.地震信息的属性参数提取和砂体预测方法.石油地球物理勘探,1997,32(5):669～682Huang Zhenping,Wang Xiaohua and WangYunzhuan.Method for making both seismic attribu-tive parameter extraction and sand body prediction.OGP,1997,32(5):669～682
[3]武丽,于文芹,杨立强,马殿仁.地震属性分析技术在波斯湾盆地中部S区块储层预测中的应用.石油地球物理勘探,2008,43(5):557～561Wu Li,Yu Wen-qin,Yang Li-qiang and Ma Dian-ren.Application of seismic attributes analytic technique toreservoir prediction in some block of central part ofPersian Gulf basin.OGP,2008,43(5):557～561
[4]侯伯刚,杨池银,武站国,吴伯福.地震属性及其在储层预测中的影响因素.石油地球物理勘探,2004,39(5):553～558,574Hou Bo-gang,Yang Chi-yin,Wu Zhan-guo and WuBo-fu.Seismic attributes and their affected factors inreservoir prediction.OGP,2004,39(5):553～558,574
[5]季玉鑫,欧钦.优选地震属性预测储层参数方法及应用研究.石油地球物理勘探,2003,38(增刊):57～62
[6]黄捍东,张如伟,赵迪,陈丽华.地震反演与属性耦合检测薄层含气砂岩.石油地球物理勘探,2009,44(2):185～189Huang Han-dong,Zhang Ru-wei,Zhao Di and ChenLi-hua.Seismic inversion and detection of thin-layergas bearing sandstone by attributes coupling.OGP,2009,44(2):185～189
[7]尹成,王治国,雷小兰等.地震相约束的多属性储层预测方法研究.西南石油大学学报(自然科学版),2010,32(5):173～180Yin Cheng,Wang Zhiguo,Lei Xiaolan et al.Multiat-tribute reservoir prediction method under restraint ofseismic facies.Journal of Southwest Petroleum Uni-versity(Science and Technology Edition),2010,32(5):172～180
[8]陆基孟.地震勘探原理(下册).山东东营:中国石油大学出版社,2006,291～357
[9]张玉芬.薄互层地震反射特征研究.北京:中国地质大学出版社,2002
[10]凌云研究组.基于地震属性在沉积环境解释中的应用研究.石油地球物理勘探,2003,38(6):642～653Ling Yun research group.Study on applieation ofbasic seismic attributes to interpretation of deposi-tional environment.OGP,2003,38(6):642～653
[11]陈方鸿,王树平,李志政.三维可视化地震相分析在沉积相研究中的应用.石油勘探与开发,2005,32(3):73～75Chen Fanghong,Wang Shuping,Li Zhizheng.Wave-form classification seismic facies analysis in sedimen-tary facies research.Petroleum Exploration and De-velopment,2005,32(3):73～75
[12]刘丽娟,陈建文,程新民等.松辽盆地北部徐家围子地区登娄库组下部沉积相分析.世界地质,2006,25(1):16～22Liu Lijuan,Chen Jianwen,Cheng Xinmin et al.Sedi-mentary facies analysis of the lower part of DengloukuFormation in northern Xujiaweizi area,Songliao Ba-sin.Global Geology,2006,25(1):16～22
[13]大庆油田石油地质志编写组.中国石油地质志(卷二):大庆油田(上册).北京:石油工业出版社,1991,245～257
[2]黄真萍,王晓华,王云专.地震信息的属性参数提取和砂体预测方法.石油地球物理勘探,1997,32(5):669～682Huang Zhenping,Wang Xiaohua and WangYunzhuan.Method for making both seismic attribu-tive parameter extraction and sand body prediction.OGP,1997,32(5):669～682
[3]武丽,于文芹,杨立强,马殿仁.地震属性分析技术在波斯湾盆地中部S区块储层预测中的应用.石油地球物理勘探,2008,43(5):557～561Wu Li,Yu Wen-qin,Yang Li-qiang and Ma Dian-ren.Application of seismic attributes analytic technique toreservoir prediction in some block of central part ofPersian Gulf basin.OGP,2008,43(5):557～561
[4]侯伯刚,杨池银,武站国,吴伯福.地震属性及其在储层预测中的影响因素.石油地球物理勘探,2004,39(5):553～558,574Hou Bo-gang,Yang Chi-yin,Wu Zhan-guo and WuBo-fu.Seismic attributes and their affected factors inreservoir prediction.OGP,2004,39(5):553～558,574
[5]季玉鑫,欧钦.优选地震属性预测储层参数方法及应用研究.石油地球物理勘探,2003,38(增刊):57～62
[6]黄捍东,张如伟,赵迪,陈丽华.地震反演与属性耦合检测薄层含气砂岩.石油地球物理勘探,2009,44(2):185～189Huang Han-dong,Zhang Ru-wei,Zhao Di and ChenLi-hua.Seismic inversion and detection of thin-layergas bearing sandstone by attributes coupling.OGP,2009,44(2):185～189
[7]尹成,王治国,雷小兰等.地震相约束的多属性储层预测方法研究.西南石油大学学报(自然科学版),2010,32(5):173～180Yin Cheng,Wang Zhiguo,Lei Xiaolan et al.Multiat-tribute reservoir prediction method under restraint ofseismic facies.Journal of Southwest Petroleum Uni-versity(Science and Technology Edition),2010,32(5):172～180
[8]陆基孟.地震勘探原理(下册).山东东营:中国石油大学出版社,2006,291～357
[9]张玉芬.薄互层地震反射特征研究.北京:中国地质大学出版社,2002
[10]凌云研究组.基于地震属性在沉积环境解释中的应用研究.石油地球物理勘探,2003,38(6):642～653Ling Yun research group.Study on applieation ofbasic seismic attributes to interpretation of deposi-tional environment.OGP,2003,38(6):642～653
[11]陈方鸿,王树平,李志政.三维可视化地震相分析在沉积相研究中的应用.石油勘探与开发,2005,32(3):73～75Chen Fanghong,Wang Shuping,Li Zhizheng.Wave-form classification seismic facies analysis in sedimen-tary facies research.Petroleum Exploration and De-velopment,2005,32(3):73～75
[12]刘丽娟,陈建文,程新民等.松辽盆地北部徐家围子地区登娄库组下部沉积相分析.世界地质,2006,25(1):16～22Liu Lijuan,Chen Jianwen,Cheng Xinmin et al.Sedi-mentary facies analysis of the lower part of DengloukuFormation in northern Xujiaweizi area,Songliao Ba-sin.Global Geology,2006,25(1):16～22
[13]大庆油田石油地质志编写组.中国石油地质志(卷二):大庆油田(上册).北京:石油工业出版社,1991,245～257
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