花岗岩油气藏成藏富集因素

发布时间：2018-05-06 02:34

本文选题：花岗岩油气藏 + 成藏富集因素　；参考：《岩性油气藏》2017年01期

【摘要】：近年来,以花岗岩为储集层的油气藏不断被发现,其勘探潜力日益成为业内关注热点。为了研究花岗岩油气藏成藏富集因素,通过剖析多个典型花岗岩油气藏特征,按照油气成因、储层成因、圈闭类型、主力产层、油气水系统等影响因素,对花岗岩油气藏进行了分类;并依据岩心、薄片、露头等地质资料对油气藏进行了解剖。总结出花岗岩油气藏成藏富集因素主要包括:1源岩优、盖层厚。源岩优质高效、生烃强度大,盖层分布广、厚度大、封盖能力强。2储层广泛分布、有效性强。大面积花岗岩分布,断裂、风化作用和地层热液溶蚀作用普遍发生。3圈闭类型多样。花岗岩潜山山头、山坡和山腹部位发育多种圈闭类型。4运聚关系配置良好。有效源岩、运移通道、有利圈闭和区域盖层之间时空配置关系良好。花岗岩油气藏与上覆油气藏大多共生复合成藏,开展花岗岩油气藏成藏富集因素及规律研究,将为含油气盆地多层系勘探提供理论指导和案例借鉴。
[Abstract]:In recent years, oil and gas reservoirs with granite as reservoir have been continuously discovered, and their exploration potential has become a hot spot in the industry. In order to study the factors of reservoir formation and enrichment in granite reservoirs, by analyzing the characteristics of several typical granite reservoirs, according to the oil and gas origin, reservoir origin, trap type, main production layer, oil, gas and water system, and so on, The granite reservoir is classified, and the reservoir is dissected according to the geological data of core, thin slice and outcrop. It is concluded that the accumulation factors of granite reservoir mainly include: 1 source rock and thick caprock. The source rocks are of high quality and high efficiency, high hydrocarbon generation intensity, wide distribution of caprocks, large thickness, strong sealing ability and wide distribution of reservoirs and strong effectiveness. The distribution of large area granites, faults, weathering and formation hydrothermal dissolution generally occur in various types of 3 traps. There are many traps in granite buried-hill, hillside and hilly area. Effective source rocks, migration channels, favorable traps and regional caprocks have a good spatial and temporal relationship. Most of the granitic reservoirs and overlying reservoirs are formed by symbiosis and composite accumulation. The study on the accumulation factors and rules of granite reservoirs will provide theoretical guidance and case reference for the exploration of multi-layer systems in petroliferous basins.
【作者单位】：中国石油勘探开发研究院;中国石化石油勘探开发研究院;中国石化江苏油田分公司工程技术服务中心;
【基金】：国家重大科技专项“海外重点探区目标评价与未来领域选区选带研究”(编号:2016ZX05029-005) 中国石油集团科技专项“海外油气勘探资产评价与结构优化研究”(编号:2016D-4304)联合资助
【分类号】：P618.13

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