BZ25-1S油田深部液流转向效果影响因素分析

Analysis of influencing factors on application effect of deep fluid diversion in BZ25-1S oilfield

为分析深部液流转向在BZ25-1S油田的适应性,应用关联分析法从地质油藏、生产动态、堵剂体系、施工工艺四个方面分析近年来现场累计应用的深部液流效果情况。总结出深部液流转向效果影响因素有油藏地质因素有水井渗透率及渗透率级差、沉积微相;生产动态因素有产量(调前产液、累计产液);施工因素有爬坡压力等因素是影响深部液流转向效果主要因素,为措施选井提供必要的数据参考和现场实施提供了经验。

In order to analyze the adaptability of deep fluid diversion in BZ25-1S oilfield,the effect of 8 wells in the field in recent years was analyzed from the following four aspects,geological reservoir, production dynamics, plugging agent system and construction technology. Summed up the deep fluid diversion effect factors of reservoir geological factors have well permeability difference, sedimentary microfacies. The dynamic factors of production include pre-production fluid and cumulative liquid production, construction factors are climbing pressure. It provides an empirical basis for the follow-up work.