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2011年羟丙基瓜胶价格开始上涨,由昆山公司生产的羧甲基羟丙基瓜胶压裂液体系在苏里格气田某区块现场试验两口井。苏里气田属于低渗透气藏,储层埋藏深度在3150-3510m,温度在100-115℃之间。现场应用表明羧甲基羟丙基瓜胶压裂液的携砂性能与羟丙基瓜胶压裂的携砂性能相当,但是返排效果明显优于羟丙基瓜胶压裂液体系,并且该体系具有耐高温,低浓度、低残渣、低伤害、低摩阻、价格低等特点,是今后压裂液发展的方向。
In 2011, the price of hydroxypropyl guar began to rise. The carboxymethylhydroxypropyl guar fracturing fluid produced by Kunshan Company tested two wells in a block of Sulige gas field. The gas field in the Suri Basin is a low-permeability gas reservoir with a buried depth of 3150-3510 m and a temperature of 100-115 ° C. The field application shows that the performance of carboxymethyl hydroxypropyl guar fracturing fluid is comparable with that of HPG fracturing, but the back flow effect is better than that of HPG fracturing fluid system The system has the characteristics of high temperature resistance, low concentration, low residue, low damage, low friction, low price and is the future direction of fracturing fluid development.