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本文针对A油田油层污染越来越严重,常规酸化效果逐渐变差的实际,通过室内实验,形成了具有暂堵、增能、降粘特性的低温自生气增能解堵技术配方体系,对高渗透层形成暂堵,可有效的处理多个层位,解除油井近井地带无机堵塞、有机污染、降低界面张力,提高近井地带渗流能力,提高油井产量。为低渗透油层解除近井地带污染问题提供了一条新的途径。
In this paper, aiming at the fact that the oil layer pollution in A oilfield is more and more serious and the conventional acidification effect is getting worse, a formula system of low-temperature self-assisted gas removal and plugging technology with temporary blocking, increasing energy and viscosity reducing properties has been formed through laboratory experiments. The temporary formation of the permeable layer can effectively deal with multiple layers and relieve the inorganic blockage and organic pollution in the near well region of the oil well, reduce the interfacial tension, improve the seepage ability in the near well region and increase the oil well production. It provides a new way for the low permeability reservoir to lift the near-wellbore pollution.