阿尔及利亚416a—417区块构造精细成图方法
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摘要
阿尔及利亚中北部416a—417区块的勘探程度较低,为了实现主要目标层的构造精细解释,在对区内二维地震资料进行品质分析的基础上,采用了有效的地震剖面极性判别和层位精细标定方法,在构造成图过程中尝试了常规的时深转换、误差相关分析、空间变速等成图方法。实际应用表明,普通的常速成图方法只展现了研究区的大致构造形态,精度较低,地质规律和复杂构造形态表征不准;在缺少区域速度场资料的情况下,使用误差相关分析方法能较好地展示区域构造特征和圈闭形态;变速成图方法可以精细的展示构造带、圈闭面积及构造幅度,保证了构造成图的精度及准确性。
The 416a-417 area locates in the central north of Algeria with a low prospecting degree.On the basis of 2-D data quality analysis, effective seismic section polarity discrimination and fine stratum calibration method were adopted to realize detailed structure inter- pretation.In the process of mapping,several methods are utilized, which are conventional time-depth conversion,error correlation a- nalysis,and variable velocity mapping method.The actual applica- tion shows that the common constant velocity mapping method can only show the approximate structure shape of the area with a very low precision.In addition,it can't exactly characterize the geolog- ical rules and the complex structure forms.In the absence of re- gional velocity field,error correlation analysis can truly describe the areal structure characteristics and trap shape.The variable ve- locity mapping method can show geological structure belt,trap area and structure relief in detail.Therefore,it can ensure the precision and accuracy of structure mapping.
The 416a-417 area locates in the central north of Algeria with a low prospecting degree.On the basis of 2-D data quality analysis, effective seismic section polarity discrimination and fine stratum calibration method were adopted to realize detailed structure inter- pretation.In the process of mapping,several methods are utilized, which are conventional time-depth conversion,error correlation a- nalysis,and variable velocity mapping method.The actual applica- tion shows that the common constant velocity mapping method can only show the approximate structure shape of the area with a very low precision.In addition,it can't exactly characterize the geolog- ical rules and the complex structure forms.In the absence of re- gional velocity field,error correlation analysis can truly describe the areal structure characteristics and trap shape.The variable ve- locity mapping method can show geological structure belt,trap area and structure relief in detail.Therefore,it can ensure the precision and accuracy of structure mapping.
引文
1翟爱军．阿尔及利亚416a—417区块勘探潜力与勘探方向浅析[J]．石油天然气学报(江汉石油学院学报), 2005,27(1):183～185
2夏景华．阿尔及利亚石油和天然气工业的现状[J]．当代石油石化,2006,14(2):41～44
3 Drummond J,Ryan J,Kasmi R.Adapting to noisy 3-D data:Enhancing Algerian giant field development through strategic planning of 3-D seismic in Berkine Basin[J].The Leading Edge,2001,20(7):718～728
4陆基孟．地震勘探原理(下册)[M]．山东东营:石油大学出版社,1993．340～351
5张永华．三维地震资料综合解释方法探讨[J]．石油物探,2004,43(1):49～53
6秦伟军,张永华,全书进．精细构造解释与储层预测技术在泌阳凹陷中南部地区二次勘探中的应用[J]．石油物探,2004,43(1):62～66
7王蕴,朱贵生,王芳．精细构造解释与储层预测技术在腰英台地区勘探中的应用[J]．勘探地球物理进展, 2005,28(4):285～289
8杨德洲,金兴国,宣小石等．江苏地区中、古生界构造成图方法研究及其应用效果[J]．石油地球物理勘探, 2001,36(5):618～625
9王玉梅,李东波,马丽芳等．速度异常分析与构造成图技术研究[J]．石油物探,2003,42(1):102～106
10王树华,刘怀山,张云银等．变速成图方法及应用研究[J]．中国海洋大学学报,2004,34(1):139～146
2夏景华．阿尔及利亚石油和天然气工业的现状[J]．当代石油石化,2006,14(2):41～44
3 Drummond J,Ryan J,Kasmi R.Adapting to noisy 3-D data:Enhancing Algerian giant field development through strategic planning of 3-D seismic in Berkine Basin[J].The Leading Edge,2001,20(7):718～728
4陆基孟．地震勘探原理(下册)[M]．山东东营:石油大学出版社,1993．340～351
5张永华．三维地震资料综合解释方法探讨[J]．石油物探,2004,43(1):49～53
6秦伟军,张永华,全书进．精细构造解释与储层预测技术在泌阳凹陷中南部地区二次勘探中的应用[J]．石油物探,2004,43(1):62～66
7王蕴,朱贵生,王芳．精细构造解释与储层预测技术在腰英台地区勘探中的应用[J]．勘探地球物理进展, 2005,28(4):285～289
8杨德洲,金兴国,宣小石等．江苏地区中、古生界构造成图方法研究及其应用效果[J]．石油地球物理勘探, 2001,36(5):618～625
9王玉梅,李东波,马丽芳等．速度异常分析与构造成图技术研究[J]．石油物探,2003,42(1):102～106
10王树华,刘怀山,张云银等．变速成图方法及应用研究[J]．中国海洋大学学报,2004,34(1):139～146
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