小断层综合解释技术在莫北油田莫116井区的应用
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摘要
莫北油田莫116井区下侏罗统三工河组二段(J1s2)构造复杂,油藏认识不清。为合理有效开发该油藏,在精细标定、高密度解释的基础上,针对J1s2对应地震同相轴存在错断、挠曲、产状变化或地层缺失现象,进行小断层解释,同时应用地层倾角扫描、断棱检测、相干体技术分析断层平面展布及组合关系,并结合钻井生产特征,进一步确定控藏断裂将莫116井断块、莫122井断块细分割成7个小的断块,每个断块有各自的油水系统。
The structure of J 1 s 2 reservoir in Sangonghe Formation of Jurassic in Wellblock Mo 116of Mobei Oilfield was complex and reservoir clarification was not clear.In order to develop the reservoir rationally and effectively,on the basis of the fine calibration and high density interpretation of target zone,in view of the leap,distortion,occurrence changes of the seismic reflectors,the minor-fault is interpreted.The combination relations of coherent volume,map analysis technique such as dip angle scanning,edge detection,fault trend are interpreted and characterized.In combination with well production performance,the reservoir controlled fault should be further determined to subdivide Fault Blocks Mo 116and Mo 112into 7small fault blocks,each block has its own oil and water system.
The structure of J 1 s 2 reservoir in Sangonghe Formation of Jurassic in Wellblock Mo 116of Mobei Oilfield was complex and reservoir clarification was not clear.In order to develop the reservoir rationally and effectively,on the basis of the fine calibration and high density interpretation of target zone,in view of the leap,distortion,occurrence changes of the seismic reflectors,the minor-fault is interpreted.The combination relations of coherent volume,map analysis technique such as dip angle scanning,edge detection,fault trend are interpreted and characterized.In combination with well production performance,the reservoir controlled fault should be further determined to subdivide Fault Blocks Mo 116and Mo 112into 7small fault blocks,each block has its own oil and water system.
引文
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[3]冉建斌,张明玉,徐常胜,等.地震资料处理解释一体化的质量监控技术研究[J].石油地球物理勘探,2010,45(4):545～551.
[4]李双文,刘洛夫,张有平,等.准噶尔盆地莫北凸起侏罗系三工河组沉积演化及微相构成[J].沉积学报,2006,24(6):819～827.
[5]陈新,孙中春,唐勇.准噶尔盆地莫北油田侏罗系储层低孔低渗成因分析[J].特种油气藏,2004,11(4):31～35.
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[7]李双文,赵建章,谷跃民,等.准噶尔盆地莫北凸起莫7-莫11井区三维地震资料构造精细解释技术[J].兰州大学学报,2008,44(1):1～5.
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[9]杨磊,綦耀光,任旭虎,等.正断层形成机理及其对断层泥的控制作用[J].新疆石油地质,2011,32(2):138～149.
[10]付晓飞,方德庆,吕延防,等.从断裂带内部结构出发评价断层垂向封闭性的方法[J].中国地质大学学报,2005,30(3):328～334.
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