塔河油田碳酸盐岩储层具有埋藏深、温度高、油气藏类型复杂、非均质性强等特点，这使得储层深度酸压改造技术成为世界级难题。在分析现有酸压酸液体系不足的基础上，针对塔河油田奥陶系碳酸盐岩储层特点开发了冻胶酸酸压工艺，冻胶酸具有黏度高、滤失低、缓速缓蚀、破胶彻底、能携砂等一系列优点，从而实现酸液体系深穿透、提高酸蚀裂缝导流能力、延长压后有效期、提高单井产能的目的。2011年应用冻胶酸酸压工艺在塔河油田进行了4口井的现场试验，取得较好效果，施工成功率和有效率均达100％，与其他的酸液体系相比，增产效果显著，推广应用前景广阔。%The carbonate reservoirs in Tahe Oilfield, characterized by deep burial, high temperature, complex reservoir types and strong anisotropy, have turned the intensive stimulation technology into a universal problem. Based on analyzing the limitations of acid fracturing liquid system, the gelled acid fracturing technology was developed, according to the characteristics of the Ordovician carbonate reservoirs in Tahe Oilfield. The gelled acid had a series of advantages of high viscosity,low filtration, chemically retarded, corrosion retarding, viscosity break quickly and good sand - carrying capability. So the target to achieve deep penetration of acid system, improve conductivity of etching cracks, extend the validity period after fracturing, and improve the single well capacity could be fulfilled. 4 wells had been treated by this technique of carbonate reservoirs in Tahe Oilfield in 2011 ,with a construction success ratio of 100% and efficiency of 100%. Compared with other acid liquor systems, the technology was able to greatly enhance oil production and the application prospects were promising.
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