塔里木盆地顺南地区中-下奥陶统NE向走滑断裂及其与深成岩溶作用的耦合关系

发布时间：2018-03-12 20:07

本文选题：走滑断裂　切入点：深成岩溶　出处：《地球科学》2017年01期 　论文类型：期刊论文

【摘要】：SN4井获高产天然气流揭示塔里木盆地深层-超深层具有巨大油气勘探潜力,然而目的层段埋藏深、勘探程度低,其储层发育机理和分布规律仍备受争议.从宏观和微观上着手,运用三维地震精细解释技术分析了顺南地区断裂构造发育以及碳酸盐岩储层空间展布特征,并结合岩相岩石学和流体包裹体分析技术判定了碳酸盐岩成岩作用类型,从而总结出顺南地区中-下奥陶统断控型深成岩溶储层形成机制.研究结果表明,顺南地区主要经历4期构造运动:加里东早期、加里东中期、加里东晚期-海西早期和海西晚期;NE向走滑断裂的形成和改造主要与加里东中期和加里东晚期-海西早期两期构造活动有关.深成岩溶作用在顺南地区大规模发育,并与NE向走滑断裂具有很好的耦合关系:平面上,深成岩溶主要沿SN4断裂带发育,具有明显的分段性;剖面上,深部流体在垂向上的运移主要受张性走滑断裂的控制,其在横向上的运移则主要受先存渗流带的控制.深成岩溶主要顺着张性走滑断裂发育,侧向上受鹰山组上段砂屑灰岩相带的约束.
[Abstract]:SN4 well received high gas flow in Tarim Basin of ultra - deep has great potential for oil and gas exploration, but the target layer buried deep, low degree of exploration, the mechanism of development and distribution of reservoir is still controversial. Starting from the macro and micro, 3D seismic fine interpretation technique to analyze the faults along the south area and the carbonate reservoir spatial distribution characteristics, combined with facies petrography and fluid inclusion analysis technique to determine the Carbonate Diagenesis, which summed up along the area south of lower middle Ordovician fault controlled deep into the formation mechanism of karst reservoir. The results show that the Shunnan area mainly experienced 4 stages of tectonic Sports: Garito early, Garito Garito middle Hercynian early and late Hercynian; NE to the formation and transformation of the main strike slip fault with Garito and Garito in mid to Early Hercynian period two. Building activities. Deep karstification in southern area of large-scale development along, and with the NE trending strike slip fault has a good coupling between the plane. The deep karst mainly along the SN4 fault zone, has obvious segmentation; profile, migration of deep fluids in the vertical direction is mainly controlled by Zhang of the strike slip fault, the lateral migration is mainly affected by the pre-existing seepage control zone. Deep karst along the main extensional strike slip faults, the lateral upper Yingshan formation by dolarenite ash facies constraints.

【作者单位】：中国地质大学构造与油气资源教育部重点实验室;中国地质调查局武汉地质调查中心;中石化西北油田分公司勘探开发研究院;中国石油东方地球物理公司研究院;
【基金】：国家重点基础研究发展计划(973计划)项目(No.2012CB214804) 国家“十二五”重大科技专项项目(No.2008ZX05008-003-30)
【分类号】：P618.13

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