【作者】 刘春晓；

【导师】 李铁刚；

【作者基本信息】 中国科学院研究生院（海洋研究所） ， 海洋地质， 2010， 博士

【摘要】 实践证明,塔中地区奥陶系碳酸盐岩岩溶型储层是塔中地区主要勘探领域。虽发现了奥陶系中1低隆起、多期次发育的岩溶,然而,塔中地区目前奥陶系勘探程度仍较低。奥陶系油气藏以类型多、含油气井段长为特征,油气藏形态受不规则孔、缝、洞储层的控制,非均质性极强,储层是奥陶系油气富集的主控因素。在充分调研、掌握和消化大量已有研究成果的基础上,以现代地层学、沉积学与沉积岩石学、储层地质学、岩溶地质学、石油地质学等学科的新观点、新理论、新方法为指导,采用宏观与微观相结合,钻井、岩心、测井、地震等资料综合分析方法,紧紧围绕研究区奥陶系碳酸盐岩岩溶及油气成藏研究,取得了突破性进展,成果显著。通过对奥陶系碳酸盐岩储层的岩石学特征、成岩作用和沉积相特征研究,搞清储层储集空间、孔隙结构和类型,获取奥陶系碳酸盐岩储层物性参数,建立研究区碳酸盐岩储层综合识别、评价、预测技术;建立该区岩溶发育模式、发育期次、发育强度,预测岩溶、古风化壳储层的空间分布,搞清岩溶储层纵向和平面分布规律;分析成藏主控因素和油气成藏模式,指明有利勘探方向和目标。深化碳酸盐岩古岩溶地质学与油气储层关系的研究,而且可形成奥陶系岩溶预测的技术,进一步丰富碳酸盐岩储层地质学的相关理论。更多还原

【Abstract】 It was proved that the main exploration target in mid-Tarim area should be the Ordovician carbonate karst reserviors. But the exploration level of Ordovician in mid-Tarim is low although Zhong-1 low uplift and multiple stage karsts in Ordovician have been found. The characteristic of Ordovician oil and gas reservoirs are multi types with thicker oil-bearing section. Reservoirs”shape are independent of abnormally pores fractures and cavities with heavy heterogenesis. Reservoir is the main control factor of Ordovician hydrocarbon enrichment .The theme was based on sufficient investigatng, mastering and digesting present information. Follow the direction of up to date opinion, theory and method of various disciplines like modern stratigraphy, sedimentology and lithology, reservoir geology, karst geology, and petroleum geology etc. Integrated analyzed well data, drill core, well log and seismic data by macroscopy and microscopy, had breakthrough development and had remarkable exploration fruitage.The goal of this theme is by studying the Ordovician carbonate reservoir lithological, diagenesis and sedimentary facies features, understanding the accumulate space of reservoir, pore structure and type, acquiring physical property parameters of Ordovician carbonate reservior, establishing the techniques of carbonate reservoir identifying, evaluating and predicting, establishing karst reservoir developing mode, forming stages and developing scale , predicting karst reservoir and paleo-weathering crust reservoir spatial distribution, clarifying vertical and horizontal distribution of karst reservoir, analyzing the key control factors and patterns of the reservoir-forming, pointing out the perspective area and target of exploration, to deepen the relationship between carbonate paleo-karst geology and hydrocarbon reservoirs, and to establish prediction techniques of Ordovician karst, further more to enrich the relevant theory of carbonate geology.更多还原