钻井液与完井液2017，Vol.34Issue(3)：64-67,4.DOI:10.3969/j.issn.1001-5620.2017.03.012
钻井液用页岩防塌剂中磺化度测定方法的改进
Improve the Test Method of the Degree of Sulfonation of Drilling Fluid Shale Inhibitors
摘要
Abstract
Sulfonated asphaltene,an additive widely found in water base and oil base drilling fluids,is generally used to effectively plug the micro fractures,prevent sloughing shales from collapsing,and inhibit shale from becoming hydrated.It also has good lubricity,emulsifying capacity,and abilities to reduce filter loss and to stabilize mud properties at elevated temperatures.The content of sodium sulfonate in sulfonated asphaltene is an important index ofevaluating the quality of the sulfonated asphaltene;the higher the content of the sodium sulfonate,the better the quality of the sulfonated asphaltene.In laboratory studies,the ion chromatography and element analyzer were used together to establish a fast way of measuring the content of sodium sulfonate in sulfonated asphaltene.Using this method,the relative standard deviation (RSD) of the measuring result of each sample was less than 1％ (n=5),indicating that this method had good repeatability.Experimental results demonstrated that this method is fast,reliable and easy to use in measuring the sodium sulfonate content in a sulfonated asphaltene.关键词
离子色谱/元素分析/磺酸钠基Key words
Ion chromatography/Element analysis/Sodium sulfonate分类
能源科技引用本文复制引用
刘卫丽,夏小春,王文利,易勇..钻井液用页岩防塌剂中磺化度测定方法的改进[J].钻井液与完井液,2017,34(3):64-67,4.基金项目
“十二五”国家重大专项子课题“复杂压力体系油藏钻完井全过程储层保护技术”(2011ZX05057-002-002). （2011ZX05057-002-002）
