塔中Ⅰ号坡折带上奥陶统礁滩体储层岩性以碳酸盐岩为主, 在测井储层表征与定量评价中, 由于储集空间的多样性及其组合的复杂性, 给利用测井资料评价碳酸盐岩储层带来了一系列困难。文中以测井资料为基础, 结合岩心、实验、试油等资料, 划分出储层储集空间的类型和储层类型。分别建立了不同类型储层的各种测井响应特征及响应模板, 并在此基础上建立了礁滩体储层类型的划分标准。根据不同储集类型的孔、渗关系, 结合中国石油天然气行业标准, 建立了礁滩体不同储层级别的解释图版和解释标准, 所划分的储层级别与礁滩体沉积相带具有很好的对比关系, 为测井储层评价和完井试油层段的选择提供了可靠的解释依据。

The lithology of reef flat reservoir of Upper Ordovician in Tazhong No.1 slope break is mainly composed of carbonate. Because the reservoir space is various and complicated in the quantitative evaluation of well logging, there are a series of difficulties to evaluate carbonate with well logging data. The well logging data combining with core, experiment and well test are applied to divide the space and types of reservoirs, establish different response characteristics and models for different types of reservoirs, and build the division criterion of reef flat reservoir. According to the relationships between porosity and penetration of different types of reservoirs, the interpretation charts and criteria for different classified reef flat reservoirs are established, which provide dependable criteria for the reservoir evaluation and the choice of interval in well testing.