不同分子结构两性离子聚合物在盐水泥浆中的抑制性特点

Inhi-bition Characteristics of the Amphion Polymers with Different Molecular Structures in Brine Drilling Fluid

测定了具有不同分子结构两性离子聚合物在盐水环境下抑制性结果，研究发现聚合物的分子线团尺寸对其抑制页岩水化分散能力构成有显著的影响。若分子线团尺寸受矿化条件影响而极度收缩，则其抑制能力将明显降低。

Inhibiting results of amphion polymers with different moecular structures have been tested under brine environment. The results indicate that the molecular size of polymers has a notable influence on the shale inhibiting dispersity, When the molecular size of polymers affected by the mineralized condition is greatly reduced, its inhibiting ability will be obviously lowed.