巴喀油田地应力研究与应用

随着对地应力认识的逐步加深，它在油气勘探开发中的作用日益受到重视。文章运用多种方法确定了巴喀油田现代最大主应力的方向，利用水力压裂资料估算了3个方向主应力的大小及分布规律，力图客观真实地反映出巴喀油田现今地应力的状况，并简单阐述了裂缝与古今地应力的关系及在不同开发时期的作用。在此基础上，结合巴喀油田的生产情况，提出了有关井网调整、压裂改造和注水的一些看法。

IN-SITU STRESS STUDY OF BAKA OILFIELD AND ITS APPLICATION

In pace with in-situ stress knowledge deepen progressively, it attaches incressingly importance to the role of exploration and development for oil and gas. This paper utilizes varied methods to determine the modern times direction of maximum principal stress in Baka oilfield, and makes use of hydraulic fracturing data to estimate size and distribution law for three direction principal stress, in order to try hard to reflect objectively and authentically in-situ stress conditions at present for Baka oilfield, and elaborates simply the relation between fracture and ancient-modern in-situ stress and the function of different development periods , on the basis of these, it integrates production situation of Baka oilfield, and puts forward certain opinions on well pattern adjustment, fracturing transform and water injection.