巨厚块状稠油油藏高温调剖技术研究与应用

厚块状稠油油藏往往在开发过程中油层动用程度严重不均,汽窜现象突出,开发效果差,为此,结合辽河油田巨厚块状稠油油藏特点,开展了高温调剖技术研究,确定了调剖剂配方。矿场试验表明,研制的高温调剖剂能够封堵高渗油层,同时注入驱油助排剂对低渗油层进行驱油助排,达到了改善吸汽剖面、提高油层纵向动用程度、改善蒸汽吞吐效果的目的。

Research and application of high temperature profile control technology in super-thick massive heavy oil reservoir

During the development process of super-thick heavy oil reservoirs,the oil layers producing degree is seriously imbalanced,the steam channeling phenomenon is outstanding,and the development effect is poor.Therefore,combining with the super-thick massive heavy oil reservoir characteristics of Liaohe oilfield,the technology research of high temperature profile control has been carried out,and the profile control agent formula has been determined.Field test show that the developed high temperature profile control agent can block the high permeability reservoir,at the same time the injected oil displacement is good for low permeability reservoirs and can reach the purposes of improving the steam absorption profile,enhancing the reservoir longitudinal producing degree and improving the steam stimulation effect.