化学复合驱中的调剖技术探讨

主要阐述了吉林油田化学复合驱的潜力评价结果,主要潜力区在Ⅱ类油藏条件,化学驱替剂的窜流是影响吉林油田化学复合驱矿场应用的限制条件;调剖技术控制化学剂的窜流对化学复合驱的起技术支撑作用,通过物理模拟实验阐述调剖时机、调剖剂性能对化学复合驱调剖效果的影响,高强度堵剂调剖、先调后驱的调剖效果好;通过调剖剂性能和适应性分析吉林油田现有的成熟调剖剂不适合直接应用于化学驱调剖,提出适合吉林油田Ⅱ类潜力区油藏条件的化学驱调剖剂研究方向。

Research on Profile Control Technique in Chemical Combination Flooding

This paper mainly describes the potential evaluation results of the Jilin Oilfield chemical combination flooding,which is that the main potential areas are in the Class II reservoir conditions,the channeling of chemical displacing agents is affected by the constraint condition of field application in Jilin Oilfield chemical combintion flooding. The channeling of chemical agents is controlled by profile control technology to play the technical support role for chemical combination flooding. Through physical modeling experiments described the opportunity of profile control and performance of profile control agent having an impact on the profile control effect of chemical combination flooding, so the effect of profile control is good for high-strength blocking agent and the first profile and after the flooding. Through the performance and applicability of profile control analyzing, the existing mature profile control agent in Jilin Oilfield is not suitable for direct application of chemical flooding profile control. This paper proposed the research direction of chemical flooding profile control agent to suit Class II reservoir conditions of potential areas in Jilin Oilfield.