现在的石油钻井技术要求聚阴离子纤维素(简称PAC)具有更好的抗盐、抗钙和抗温性能。
Current drilling technology requests that polyanionic cellulose (PAC) has the better properties to tolerate salt, calcium and temperature.
研究了聚阴离子纤维素的生产工艺，溶剂回收利用。介绍了聚阴离子纤维素的用途、现状及发展前景。
Studied the technology for producing polyanionic cellulose, the solvent is taken back to using. Introduced the application, present situation and developing prospect.
现在的石油钻井技术要求聚阴离子纤维素(简称PAC)具有更好的抗盐、抗钙、抗高温性能和明显的增粘作用。
Current drilling technology requests that polyanionic cellulose (PAC) has better properties to tolerate salt, calcium, high temperature, and enhance mud viscosity remarkably.
而羧甲基纤维素是一种天然纤维素经过化学改性后获得的一种水溶性较好的聚阴离子化合物，其优点是保水性，成膜性，分散性稳定。
Carboxymethyl cellulose is a kind of water soluble polymer with good water solubility, which is a kind of natural cellulose after chemical modification.
而羧甲基纤维素是一种天然纤维素经过化学改性后获得的一种水溶性较好的聚阴离子化合物，其优点是保水性，成膜性，分散性稳定。
Carboxymethyl cellulose is a kind of water soluble polymer with good water solubility, which is a kind of natural cellulose after chemical modification.
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