PAMS聚合物钻井液体系的研究与应用

Study and application of PAMS polymer drilling fluid system

介绍了PAMS聚合物在钻井液中的防塌性、抗温性、抗污染能力以及与其他添加剂的配伍性。室内研究和现场应用表明,PAMS聚合物与常用的丙烯酰胺、丙烯酸等多元共聚物相比,具有较强的耐温抗盐能力、防塌能力及抑制地层造浆能力,热稳定性及配伍性好;能协同其它处理剂提高综合效果;用量小,维护周期长,可降低钻井液成本。

This paper discusses such performances of PAMS polymer as its sloughing prevention, temperature tolerance , contamination resistance, and compatibility with other additives in drilling fluid system. Laboratory test and field using shows that, comparing to copolymers of acrylamide and acrylic acid, PAMS polymer shows better high temperature and salt resistance, sloughing prevention, mud making inhibition and good thermal stability and compatibility. Moreover, it improves the harmonic effect with other additives, and cuts down the drilling fluid cost because of less dosage and easy maintenance.