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上奥陶统碳酸盐岩储层是和田河气田主要产气层之一。储层储渗空间以次生成因的孔、洞、缝为主。该套储层是在 4亿年左右的地质历史中 ,由沉积、成岩和构造作用相互影响而形成的最终成果 :其中沉积作用是基础 ,影响着储层的基本形态 ,有利于储层形成与演化的沉积相为台地边缘滩、台内点滩和上斜坡等沉积相带 ;成岩作用是关键 ,决定了储层的最终分布形态和范围 ,对储层结构的影响至关重要 ,促进储集空间形成的成岩作用主要有表生期和埋藏期的溶解作用 ;构造作用是条件 ,影响着各储集体之间以及单一储集体内部储集空间的连通情况。
The Upper Ordovician carbonate reservoir is one of the major gas zones in the Hetianhe gas field. Reservoir storage and infiltration of space to secondary causes of holes, holes, seams based. The reservoir is the result of the interaction of sedimentation, diagenesis and tectonics in the geological history of about 400 million years: the sedimentation is the foundation and affects the basic shape of the reservoir and is conducive to the formation of reservoir and The evolved sedimentary facies are the sedimentary facies belts on the marginal beach of the platform, the point beach of the platform and the upper slope. Diagenesis is the key factor that determines the final distribution and range of the reservoir. The impact on the reservoir structure is crucial to promote the reservoir The diagenesis formed in space mainly has dissolution during epigenetic and burial periods. The tectonic effect is the condition that affects the connectivity of reservoir spaces within and between individual reservoirs.