柴达木盆地复杂构造带综合地质建模技术
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摘要
英东地区位于英雄岭断褶带以东,是柴达木盆地地表构造集中发育的地区,由于地表及地下地质结构复杂,使得该区的地震资料品质较低,落实构造难度较大。文中从地面地质露头、钻井资料和构造演化入手,采用"综合地质建模技术"构建了"浅层滑脱、深层块断"双层构造解释模式,采用合成地震记录与速度分析相结合的多井、多层次综合标定方法标定了层位,从形成机制上对两期断裂系统的组合关系及晚期断层对构造的影响进行了探讨。根据新的解释成果,在英东地区部署的S37井见到了丰富油气显示,说明"综合地质建模技术"在复杂地区地震资料解释中具有较好的应用价值。
Located in the east of Yingxiongling fault-fold belt,Yingdong area is the place with most developed surface structures of Qaidam Basin.Because of complex in both the surface and underground geological structures,quality of seismic data in Yingdong area is relatively poor,leading more difficulties in structure determination.Started from geological outcrops,drilling and tectonic evolution,an interpretation model of double structures(decollement in the shallow and block-faulting in the deep) has been established by "integrated geological modeling technology" in this paper.Then,on the basis of synthetic seismogram combined with velocity analysis,horizons have been calibrated by integrated calibration method of multi wells and multi levels.Finally,combination relations among fault systems of two stages and affection of later faults towards structures have been discussed according to generation mechanism.Based on newly interpreted results,Well S37 has been deployed in Yingdong area,with abundant oil/gas show,indicating a relatively bright application future of "integrated geological modeling technology" in seismic interpretation of complex area.
Located in the east of Yingxiongling fault-fold belt,Yingdong area is the place with most developed surface structures of Qaidam Basin.Because of complex in both the surface and underground geological structures,quality of seismic data in Yingdong area is relatively poor,leading more difficulties in structure determination.Started from geological outcrops,drilling and tectonic evolution,an interpretation model of double structures(decollement in the shallow and block-faulting in the deep) has been established by "integrated geological modeling technology" in this paper.Then,on the basis of synthetic seismogram combined with velocity analysis,horizons have been calibrated by integrated calibration method of multi wells and multi levels.Finally,combination relations among fault systems of two stages and affection of later faults towards structures have been discussed according to generation mechanism.Based on newly interpreted results,Well S37 has been deployed in Yingdong area,with abundant oil/gas show,indicating a relatively bright application future of "integrated geological modeling technology" in seismic interpretation of complex area.
引文
[1]夏义平,刘万辉等.走滑断层的识别标志及其石油地质意义.中国石油勘探,2007,12(1):17～22Xia Yi-ping,Liu Wan-hui et al.Identification of strike-slip fault and its petroleum geology significance.ChinaPetroleum Exploration,2007,12(1):17～22
[2]刘永江,葛肖虹,叶惠文等.晚中生代以来阿尔金断裂的走滑模式.地球学报,2001,22(1),24～28Liu Yong-jiang,Ge Xiao-hong,Ye Hui-wen et al.Strike-slip model for Altyn Tagh fault developed sinceLate Mesozoic.Acta Geoscientia Sinica,2001,22(1),24～28
[3]张永华,陈萍,赵丽晴等.基于合成记录的综合层位标定技术.石油地球物理勘探,2004,38(1):93～96Zhang Yong-hua,Chen Ping,Zhao Li-qing et al.Inte-grative layer-labeling technique based on synthetic seis-mogram.OGP,2004,38(1):93～96
[2]刘永江,葛肖虹,叶惠文等.晚中生代以来阿尔金断裂的走滑模式.地球学报,2001,22(1),24～28Liu Yong-jiang,Ge Xiao-hong,Ye Hui-wen et al.Strike-slip model for Altyn Tagh fault developed sinceLate Mesozoic.Acta Geoscientia Sinica,2001,22(1),24～28
[3]张永华,陈萍,赵丽晴等.基于合成记录的综合层位标定技术.石油地球物理勘探,2004,38(1):93～96Zhang Yong-hua,Chen Ping,Zhao Li-qing et al.Inte-grative layer-labeling technique based on synthetic seis-mogram.OGP,2004,38(1):93～96
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