植物油改性钻井液润滑剂的合成与性能研究  

Preparation of Vegetable Modified Lubricant for Drilling Fluid and Research on Its Lubricating Performance

作　　者：王承俊 Wang Chengjun(Drilling Fluid Technical Service Center,Sinopec Shengli Oilfield Service Corporation,Dongying 257000,China)

机构地区：[1]中石化胜利石油工程有限公司钻井液技术服务中心,山东东营257000

出　　处：《山东化工》2022年第11期7-9,共3页Shandong Chemical Industry

基　　金：国家科技重大专项项目40之课题5“致密油气开发环境保护技术集成及关键装备”(编号:2016ZX05040-005)部分研究成果;中石化胜利石油工程公司博士后科研项目“多点吸附钻井液润滑剂的研究”(编号:SKG2031)。

摘　　要：针对植物油具有环保易得、结构可修饰性强的优势以及热稳定性低、润滑效果差的问题,对植物油进行结构改性。即通过基团筛选、反应条件与反应物配比优化完成植物油的酰胺化硫化改性,获得改性植物油油钻井液润滑剂DNSO。润滑剂结构中含有氨基与硫醚两种吸附基团,具有优异的润滑性能、抗高温能力以及钻井液配伍性能,润滑系数降低率能够达到82.6%,能够在160℃老化16 h后维持较高的润滑能力,并且能够有效提升现场钻井液的润滑能力。通过摩擦磨损试验,确定润滑剂能够利用结构中的多种杂原子基团在金属表面形成牢固的润滑吸附膜,提升润滑剂润滑性能。In view of the advantages of vegetable including environmentally friendly,easy to obtain,and high structural modification,while low thermal stability,and poor lubricating effect,flexible modification,structural modification of vegetable oils containing group screening,optimization of reaction conditions and reactant ratios to afford vegetable oil based drilling fluid lubricant DNSO.The lubricant structure contains two adsorption groups of tertiary amine and thioether,which has excellent lubricating performance,high temperature resistance and drilling fluid compatibility.The reduction rate of lubrication coefficient can reach 82.6%.DNSO could maintain high lubrication after aging at 160℃for 16 h and improve the lubricity of real drilling fluid.Through the friction and wear test,it is determined that the lubricant can use a variety of heteratomic groups in the structure to form a solid lubricating adsorption film on the metal surface,and improve the lubrication performance of the lubricant.

关 键 词：钻井液 润滑剂 植物油 硫化 酰胺化 吸附 

分 类 号：TE242[石油与天然气工程—油气井工程]