论文部分内容阅读
在近井地带应用醇基处理液来解决液体或凝析油堵塞的增产措施,其作用原理是可增加气体有效渗透率、提高去油程度、降低界面张力。本文阐述了处理液与地层的相容性以及地层流体、醇和阻化柴油基处理液与主要来自Cupiagua油田的岩心之间所进行的驱替实验的结果。结果显示:应用处理液后,降低了液体饱和度,提高了气体有效饱和度。通过注入处理液前后岩心气体有效渗透率的变化,对醇基和阻化柴油处理液的性能进行了评价。结果显示:21-NE-06号醇基处理液和阻化柴油处理液在消除液相堵塞方面都是有效的。
The application of alcohol-based treatment liquid near the wellbore to solve the liquid or condensate plugging stimulation measures, its role is to increase the effective gas permeability, improve degreasing and reduce the interfacial tension. This article illustrates the compatibility of treatment fluids with formations and the results of displacement experiments conducted between formation fluids, alcohols, and retarder diesel-based fluids with cores mainly from the Cupiagua field. The results show that after the treatment liquid is applied, the liquid saturation is reduced and the effective gas saturation is increased. Through the change of effective permeability of core gas before and after the treatment liquid was injected, the performance of the alcohol-based and the retarding diesel treatment liquid was evaluated. The results show that both the 21-NE-06 alcohol-based treatment and the anti-diesel treatment are effective in eliminating the clogging of the liquid phase.