钻井液用超分子增黏提切剂-ZJA的研发与评价  

Research and evaluation of supramolecular tackifier and shear-strength improving agent ZJA for drilling fluids

作　　者：张领宇 蒋官澄[1] 安玉秀[1] 

机构地区：[1]中国石油大学(北京)石油工程学院,北京102249

出　　处：《现代化工》2016年第1期131-135,共5页Modern Chemical Industry

基　　金：国家863主题项目(2013AA064803);国家自然科学基金重点支持项目(U1262201);中石油集团公司重点项目(2014D-4407);中石油集团公司重大基础研究项目(2014A-4212)

摘　　要：针对目前水基钻井液增黏提切剂普遍存在塑性黏度增加幅度大于切力增加幅度的缺点,采用超分子和高分子化学的原理,通过复合引发研发了AM/AMPS/DMDAAC三元共聚物。TEM表明,研发的三元共聚物分子间形成了具有超分子结构的三维网状结构,同时与黏土颗粒之间形成了具有超分子特点的动态可逆有序结构。同时,对产品性能进行了评价。实验结果表明,共聚物具有优异的提切效果。4%淡水基浆的表观黏度从9 m Pa·s提高到30.5 m Pa·s,动塑比从0.5 Pa/m Pa·s提高到1.77 Pa/m Pa·s,耐温150℃,可用于饱和盐水体系。For water-borne tackifier and shear-strength improving agent,the increase amplitude of plastic viscosity is generally higher than that of shear strength. To solve this problem,a ternary copolymer of AM / AMPS / DMDAA（ ZJA） is synthesized based on the principle of supermolecule and polymer chemistry. The supermolecular three-dimensional network formed among the ternary copolymers can be observed through TEM,which also forms some ordered structures assuming dynamic reversibility with clay particles. The temperature and salt resistance ability are also studied. The results show that the obtained tackifier and shear-strength improving agent ZJA has an excellent shear-strength improving effect.By addition of ZJA,the apparent viscosity of 4% of fresh water mud is increased from 9 m Pa·s to 30. 5 m Pa·s,with the increase of yield point and plastic viscosity ratio from 0. 5 Pa / m Pa·s to 1. 77 Pa / m Pa·s,correspondingly. Moreover,ZJA also has a good salt resistance at150℃ and can be applied in the saturated salt-water drilling fluid.

关 键 词：超分子 增黏提切剂 AMPS共聚物 复合引发剂 动塑比 

分 类 号：TE254[石油与天然气工程—油气井工程]