乳化酸酸压工艺技术在塔河油田的应用

Applications of Emulsified Acid Fracturing Technology in Tahe Oilfield

酸压是塔河油田增储上产的主要手段 ,详细介绍了乳化酸酸压工艺的增产机理和关键技术 ,在塔河油田 5口井的现场应用表明 ,乳化酸在酸压施工过程中滤失量很小 ,缓速性能好 ,其有效酸蚀缝长可以达到 15 0 m,但施工中摩阻相对较大 ,造成施工泵压较高。

Acid fracturing is the main technological measures for stimulation in Tahe Oilfield. The stimulation mechanism and key techniques of emulsified acid fracturing technology are introduced in detail. Field applications in five wells show that the filtration of emulsified acid is less during acid fracturing operation and its retardation is good. Meanwhile, its acid etching fracture is as long as 150 meters but the friction is relatively large, and the pump pressure is correspondingly high during operation.