基于实钻测井资料研究剩余油分布的新方法

针对陆梁油田陆9井区白垩系呼图壁河组XX油藏这一特殊的低幅度、薄层、高渗透底水油藏类型，自2001年大规模投入开发以来，目前采出程度仅为14%，综合含水72%左右，进入中高含水开采阶段，研究剩余油分布势在必行。提出了利用近年穿层井实钻测井资料研究剩余油分布的新方法，在充分利用油藏近5年开发井实钻测井资料的基础上，结合底水油藏水驱油机理研究油藏剩余油分布。结果表明，对于300 m×300 m的开发井网，在距离油井100~170 m的范围内油层波及程度仅为20%左右，即剩余油主要分布在开发井之间的油层顶部，且呈“船底型”分布。

New method of remaining oil distribution study based on actual drilling logging data

The XX reservoir in Hutubihe formation Cretaceous in Area LU9 Luliang oilfield is a typical low-amplitude and thinlayered sandstone reservoir with high-permeability and bottom-water.Since the large-scale development in 2001,the recovery percent at present was only about 14% while general water cut was up to 72%,which means that the reservoir has entered into the late stage of water-flooding,so study the remaining oil distribution is imperative for this area.A new method of analyzing the remaining oil with a...