多项剩余油研究技术在马岭油田开发中的综合应用

Integrated Application of Multiple Technologies of Residual Oil Studies to Maling Oilfield Development

油田进入中高含水开发阶段，剩余油分布较为零散，通过单一手段研究剩余油分布，很难准确描述剩余油分布。利用多种手段监测剩余油分布，寻找潜力油层，调整开发方案，指导油田开发实践，进而提高油田采收率已势在必行。2004年以来，马岭油田充分利用动态分析方法、剩余油测试技术、数值模拟技术及检查井、观察井研究等相结合方法．通过反复对比、分析、论证，实现剩余油分布描述从定性分析向定量的转化，进而指导油田开发实践，取得了良好的经济效益，实现增加地质储量230×10^4t，可采储量75×10^4t，提高采收率0．5％。探索出了符合马岭油田剩余油分布研究的科学方法，并对开发同类油田有一定指导意义。

When oilfield development enters the mid-high water-cut stage, distribution of the remaining oil is often fragmented. It is difficult to accurately describe the distribution of residual oil through a single means to research distribution law of the remaining oil. It is imperative under the situation to use various means to monitor the distribution of remaining oil, to look for potential oil zones, to adjust the development program, and guide oilfield development practice, then improve the oil recovery. Since 2004, we use fully combining research methods, such as performance analysis, residual oil testing technology, numerical simulation technology, inspection wells and observation wells study, in Maling oilfield. Through repeated comparison, analysis, feasibility studies, a conversion from qualitative to quantitative analysis of description of the remaining oil distribution is realized, and it guides the oilfield development practice. Good economic results are achieved. The additional geological reserves of 2.30 million ton and the recoverable of 0.75 million ton are achieved, with EOR 0.5%. Scientific methods suitable for the residual oil distribution study of Maling oilfield are explored out. It＇s a good guide for the development of similar fields.