海上厚砂体油气藏内隔夹层研究

不同规模的隔夹层既影响流体的垂向渗流,也影响水平渗流,并制约油田开发的注采层位和射孔层段。以海上某油田最大探明储量单元的主力砂体内的隔夹层为例,以测井资料为基础,结合测试、录井等资料对砂体内的隔夹层性质进行了精细研究。研究结果表明,该砂体气顶内部的非储层是一个含泥质灰岩差储层,不是一个纯粹泥岩非渗透层,从而为开发方案的制定提供了有力的技术支撑,并在后继的开发中得到了证实。

Research on interlayers of offshore hydrocarbon reservoir with thick sandbodies

Interlayers with different scales not only affect the seepage flow vertical and horizontally, but restrict the development of oilfield injection-production horizon and perforation layer segment as well. Take the example of major sandbodies with the biggest proven reserves in some specific oilfield; the fine study on interlayers characteristics has been conducted from the start of reservoir and in combination with logging, testing and mud logging data as well. The research results indicate the non reservoir among the gas cap is a poor limestone reservoir with muddy, not a pure of non-permeable mudstone, which provides a powerful technical support for FDP and be confirmed by the subsequent development, being of guidance and reference for the interlayers of the similar kinds.