层内生成二氧化碳技术对渗透率适应性的研究与应用

Research and application of in-stiu carbon dioxide generation to permeability adaptability

针对层内生成二氧化碳技术对高渗层的封堵能力及如何使该技术进行了室内实验研究,研究表明,层内生成二氧化碳技术对高渗层的封堵能力有限,但结合聚合物或冻胶等封堵体系可以取得较好的封堵效果,采收率也得到了进一步的提高。矿场实验表明,层内生成二氧化碳技术结合聚合物封堵段塞可以适应存在高渗层、长井段的水井,解决了单独层内生成二氧化碳技术封堵能力差的缺点,取得了较好的增油控水效果。

This paper makes evaluation of plugging ability on hypertonic layer of in-stlu carbon dioxide generation and takes indoor experimental research to make the technology adapt to hypertonic layer.The research shows that plugging ability on hypertonic layer of instiu carbon dioxide generation is limited, but the combination of polymer or gel plug system can obtain good plugging effect, recovery has been further improved. Field test shows that, in-stiu carbon dioxide generation with polymer plugging slug can adapt to the presence of hypertonic layer, long hole section of well and improve the plugging ability of in-stiu carbon dioxide generation, obtained better oil control effect of water.