适用于强水敏性地层的柴油冻胶压裂液

Diesel based fracturing fluid for water sensitive reservoir

介绍了一种适用于强水敏性地层的新型柴油冻胶压裂液体系。该体系以新合成的磷酸酯作稠化剂、含活性剂的铝盐作交联剂,以醋酸钠作破胶剂,分析了该柴油冻胶压裂液砷交联机理。研究了柴油冻胶压裂液的交联能力、耐温能力、耐温耐剪切性、破胶性、滤失性等性能。实验结果表明,该柴油冻胶压裂液适用于强水敏油气层、低压低渗透油气藏。

New diesel based fracturing fluid used in water sensitive reservoirs is composed of gelling agent phosphate ester, cross linking agent aluminum salt, and gel breaker sodium acetate. Tests indicate that this fracturing fluid possesses the advantage of quick crosslinking, good thermal stability, low fluid loss and quick breaking property. This diesel based fracturing fluid can be used in water sensitive and low permeability reservoir.