两性离子聚合物泥浆的研究与应用

The Application of Amphoteric Polymer Mud

对FA—367、XY—27两性离子聚合物处理剂及其泥浆体系进行了室内评价试验和现场应用。根据卡森模式优选出了两性离子聚合物泥浆配方。结果表明,与PAC—141、80A51、SK—1三种大分子主聚合物处理剂相比,FA—367抑制泥页岩水化膨胀分散能力最强;与SK—3、XB—40、PAC—145小分子辅助聚合物相比,XY—27抑制泥页岩水化分散能力最强,且不随加量增加而增强对泥页岩的分散性;该泥浆体系的配方简单,加药量少,泥饼薄韧光滑,性能易调,能满足高压喷射钻井的要求,试验井井径规则,但该体系的抗高温性能较差。

The application of Amphoteric polymer mud in Henan oil field is presented . Tests indicate that this drilling fluid has the advantage of higher inhibity , lower density , lower high shear viscosity , and good temperature stability . The difference between amphoteric polymer and normal polymer additive is discussed .