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根据资阳地区灯影组取心段岩心的宏观、微观及地球化学特征,结合常规物性资料,研究了区内层状白云岩储集层的基本特征及主要控制因素,总结出这类储集层的储渗空间组合的演化及分布规律。认为:层状白云岩储集层以重结晶较强的粉晶白云岩、细晶白云岩、粉一细晶的残余砂屑白云岩、残余鲕粒白云岩为主;储集空间以次生成因的溶蚀孔、洞为主,而裂缝除具有一定的储集能力之外,更重要的是起到连通孔隙的作用;储集空间组合类型以裂缝-孔洞型和孔洞型为主。这类储集层主要分布在滩相和灰泥评相发育区。资3井、资4井一线及其西南侧属该类地区,应是重点勘探目标;勘探层位应以灯二段中、下部为重点,以寻找这类有利于储集层发育的相带。
According to the macroscopic, microscopic and geochemical characteristics of coring core of Dengying Formation in Ziyang, and combining with the conventional physical data, the basic characteristics and main controlling factors of stratiform dolomite reservoirs in the area are studied. Evolution and distribution of space combinations in reservoir seepage. It is concluded that the layered dolomite reservoirs are dominated by recrystallized strong crystalline dolomite, fine crystalline dolomite, fine-grained residual sands dolomite and residual oolitic dolomite. Due to the dissolution pores and holes, the fractures have a certain reservoir capacity, and more importantly, they play the role of communicating pores. The types of reservoir spaces are mainly fractures-holes and holes. Such reservoirs are mainly distributed in the facies and facies development zones. The wells of Well 3, Well 4 and the southwest side of this well should be the key exploration targets; the exploration level should focus on the middle and lower parts of Deng 2, in order to find such facies belonged to reservoir development .