柴达木盆地复杂构造带综合地质建模技术  

Integrated modeling technology for complex fault belt in Qaidam Basin

作　　者：张菊梅[1] 曹正林[1] 张道伟[2] 漆家福[3] 裴明利[1] 

机构地区：[1]中国石油勘探开发研究院西北分院,甘肃兰州730020 [2]中国石油青海油田公司,甘肃敦煌736202 [3]中国石油大学(北京)．北京102249

出　　处：《石油地球物理勘探》2011年第A01期151-154,163+174-175,共4页Oil Geophysical Prospecting

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.

关 键 词：柴达木盆地 复杂构造带 综合地质建模 平衡地质剖面 双层构造解释模式 

分 类 号：P631[天文地球—地质矿产勘探]