井震结合断层建模方法在萨北北二西的应用
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摘要
萨北北二西井网密集,多年来没能利用大量井资料合理组合断层,特别是区块中央部位断裂复杂,对注采关系影响很大。采集三维地震后,把地震资料和井资料充分结合来研究断层。以地震解释的断层为基础,在三维空间利用相干体分析技术、正交切线法检查技术进行断点的空间归位、断层的空间组合,同时结合未组合断点寻找地震未解释的小断距断层,最后建立精准断层模型。结果表明该方法提高了断点组合率,对断层的认识更加清楚可信。
The north Ⅱ west tract of saertu north area is a dense well pattern region,but these well information can not be used in rational fault combination,especially in the middle of research block where faults are well developed.It has a great impact on injection-production relationship.After 3D seismic acquisition,the author combined seismic and well data fully to research the faults,based on the faults explained by seismic,then used seismic coherence analysis technology and orthogonal tangent check technology in 3D space to combine breakpoints and faults,then according those unassembled breakpoints to look for some small faults that can not be explained by seismic,lastly established accurate fault model.The research shows that this method improves the efficiency of breakpoint combination and the recognition of the faults are more clear and credible.
The north Ⅱ west tract of saertu north area is a dense well pattern region,but these well information can not be used in rational fault combination,especially in the middle of research block where faults are well developed.It has a great impact on injection-production relationship.After 3D seismic acquisition,the author combined seismic and well data fully to research the faults,based on the faults explained by seismic,then used seismic coherence analysis technology and orthogonal tangent check technology in 3D space to combine breakpoints and faults,then according those unassembled breakpoints to look for some small faults that can not be explained by seismic,lastly established accurate fault model.The research shows that this method improves the efficiency of breakpoint combination and the recognition of the faults are more clear and credible.
引文
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2曹辉.关于地震属性应用的几点认识.勘探地球物理进展,2002;25(5):18—22
3范廷恩,翁斌,张金淼,等.复杂地质条件下精细构造建模的技术策略.中国海上油气(地质),2004;16(3):172—176
4张宾,任瑞军.夏502断块构造岩性油藏地质特征研究.特种油气藏,2003;10(3):27—28
5杜春国,付广,王安.断裂在乌尔逊凹陷油气成藏中的作用.新疆石油地质,2004;25(5):496—497
6何登发,管树巍,吴晓智,等.准噶尔盆地哈拉阿拉特山冲断带构造及找油意义.新疆石油地质,2006;27(3):268—269
7刘泽容,邓俊国,信荃麟,等.断块群油气藏形成机制和构造模式,北京:石油工业出版社,1998:1—7
8刘和甫,李晓清,刘立群,等.伸展构造与裂谷盆地成藏区带.石油与天然气地质,2005;26(5):537—552
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