化工进展Issue(5)：1427-1432,6.DOI:10.16085/j.issn.1000-6613.2015.05.040
抗高温耐盐型钻井液用降滤失剂的合成与性能评价
Synthesis and performance evaluation of fluid loss additive for high temperature resistant and salt tolerant drilling fluid
全红平 1吴洋 1黄志宇 1张太亮1
作者信息
- 1. 西南石油大学化学化工学院，四川 成都 610500
- 折叠
摘要
Abstract
A ternary copolymer of 2-acrylamide-2-methyl propane sulfonic acid (AMPS),acrylamide (AM) and sodium styrene sulfonate (SSS) was designed and synthesized by free radical polymerization as fluid loss additive for drilling fluid at high temperature and high salt content. The chemical structure of the copolymer was characterized by Fourier transform infrared spectrum (FT-IR). When 1.8% fluid loss additive was added into the freshwater based mud,filtration of drilling fluid was 7.9 mL at room temperature and 13.5 mL at 210℃. In the presence of NaCl of concentration 25% and CaCl2 of concentration 3% as salt water mud,the filtration values of drilling fluid were 14.8 mL and 11.0 mL, respectively. Scanning electron microscopy (SEM) analysis showed the microstructure of the surface of the filter cake obtained from the drilling fluid. When fluid loss additive was adsorbed on the surface of clay particles,clay particles were dispersed in the drilling fluid to form steady dispersion system. The filter cake would be uniform and fluid loss was reduced.关键词
降滤失剂/阴离子聚合物/抗高温/抗盐/抗钙Key words
fluid loss additives/anionic polymer/temperature resistant/salt tolerance/calcium resistance分类
能源科技引用本文复制引用
全红平,吴洋,黄志宇,张太亮..抗高温耐盐型钻井液用降滤失剂的合成与性能评价[J].化工进展,2015,(5):1427-1432,6.
