本文讨论了一种优化过的低凝胶硼酸(OLGB)压裂液系的低温应用。此液系不靠单独的组分来维持pH值 ,而是将一种缓冲剂与交联剂结合成一种单一组分来调节pH值 ,以获得好的交联效果 ,从而使现场应用既简便又可靠。文中对该液系的粘度、滤失、支撑剂静态沉降及动态携砂等一系列特征的室内试验结果进行了分析。此外 ,还列举、评价了若干取自南、北美洲的油田应用实例 This article discusses the cryogenic application of an optimized low-gel-boric acid (OLGB) fracturing fluid system. Instead of maintaining the pH by a separate component, the fluid system combines a buffer and crosslinking agent into a single component to adjust the pH for good cross-linking to make field applications easy Reliable. In this paper, the fluid viscosity, filtration, static settling of proppant and dynamic carrying of sand and a series of characteristics of the indoor test results were analyzed. In addition, some examples of oilfield applications from South and North America were also cited and evaluated