塔河油田碳酸盐岩油藏酸压工艺技术研究

STUDY ON ACID FRACTURING TECHNIQUE FOR THE CARBONATE RESERVOIRS IN TAHE OILFIELD

针对塔河油田油藏的特殊性和复杂性,采用油田地质、油藏工程、采油工程、油田化学原理,对选井选层、岩性分析实验、完井工艺、酸压液体体系、酸压工艺、酸压裂缝几何尺寸、酸压施工参数、酸压管柱、井下工具、酸压井口装置及压后返排技术等进行了全面、系统地研究,形成了符合塔河油田储层特点的、系列化的酸压配套技术,在应用中取得了很好的效果,解决了致密碳酸盐岩储层增产措施技术难题。为塔河油田的增储上产作出了巨大贡献。

In view of the specific characters and complexity of reservoirs in Tahe oilfield, completion process, downhole tools, acid fracturing process and parameters etc were investigated systematically, thus a series of acid fracturing techniques suitable for the local reservoirs were determined, which solved technical problems in the stimulation of carbonate reservoirs, and obtained good results in application.