一种钻井液润滑剂的制备及其性能评价  

Preparation and performance evaluation of lubricant for water-based drilling fluid

作　　者：韩银府 王正良[1] 徐鹏[2] HAN Yin-fu;WANG Zheng-liang;XU Peng(College of Chemistry and Environmental Engineering,Yangtze University,Jingzhou 434023,China;b.College of Petroleum Engineering,Yangtze University,Jingzhou 434023,China)

机构地区：[1]长江大学化学与环境工程学院,湖北荆州434023 [2]长江大学石油工程学院,湖北荆州434023

出　　处：《化学工程师》2024年第7期9-12,共4页Chemical Engineer

基　　金：湖北省重点研发计划项目(2023BCB070):抗高温非磺化环保水基钻井液研究与应用。

摘　　要：基于现有钻井液润滑剂吸附、润滑抗磨性能差的问题,本文以多元醇、多元羧酸为原料制备一种强吸附、抗剪切的润滑剂(HR-1),采用极压润滑仪和四球摩擦试验机评价其润滑抗磨性能,并通过扫描电镜&能谱仪对其润滑机理进行探讨。实验发现,润滑剂HR-1显著提高了膨润土基浆的润滑抗磨性能,优于现场应用效果较好的润滑剂BLOE;另外,润滑剂HR-1使钢球表面的C元素含量升高以及Na、O元素含量降低,这表明,润滑剂HR-1的加入使润滑剂分子取代了原本吸附在钢球表面的钠基膨润土,且降低了摩擦腐蚀产物(Fe_(3)O_(4))的形成,起到润滑抗磨作用,达到保护金属的目的。In view of the poor adsorption and anti-wear properties of existing drilling fluid lubricants,a strong adsorption and anti-shear lubricant(HR-1)was prepared with polyols and polycarboxylic acids as raw materials in this paper.The lubrication anti-wear properties were evaluated by extreme pressure lubrication instrument and four-ball friction testing machine,and the lubrication mechanism was explored by scanning electron microscopy and energy spectrum.The results showed that HR-1 significantly improved the lubrication and anti-wear properties of bentonite-based slurry,which was superior to BLOE.In addition,HR-1 increased the content of C element and decreases the content of Na and O elements on the surface of the steel ball,which indicated that the addition of HR-1 made the lubricant molecules replace the sodium bentonite originally adsorbed on the surface of the steel ball,and reduced the formation of friction corrosion products(iron oxide),played a role of lubrication and anti-wear,and achieved the purpose of protecting the metal.

关 键 词：润滑性能 摩阻系数 钻井效率 润滑剂 钻井液 

分 类 号：TE254.4[石油与天然气工程—油气井工程]