高强度套管在不同钻井液中磨损性能分析  

Analysis of Wear Performances as Presents by High-strength Casing in Different Drilling Fluids

作　　者：申维佳 张建兵[1] 娄尔标 张震[2] 刘应应 SHEN Weijia;ZHANG Jianbing;LOU Erbiao;ZHANG Zhen;LIU Yingying(Xi'an Shiyou University, Xi'an 710065, China;Tarim Oilfield Institute of Oil and Gas Engineering,Kuerle 841000, China;Xi'an Maurer Petroleum Engineering Laboratory, Xi'an 710065, China)

机构地区：[1]西安石油大学,陕西西安710065 [2]塔里木油田油气工程研究院,新疆库尔勒841000 [3]西安摩尔石油工程实验室,陕西西安710065

出　　处：《钢管》2019年第2期25-28,共4页Steel Pipe

基　　金：国家自然科学基金项目“膨胀套管螺纹连接几何、材料与接触非线性工作特性研究”(51074126)、“基于构型力学理论的井壁损伤失稳研究”(51674200)

摘　　要：以国内某超深井油田磨损套管为研究对象.使用全尺寸套管磨损试验机,模拟油田钻井工况和钻井液性能,分析几种钻井液下高强度套管磨损的情况。结果表明:在其他条件均相同的情况下,油基、高密度有机盐、高密度饱和盐水、高性能水基钻井液的套管磨损沟槽深度和磨损体积都相差不大;高密度饱和盐水钻井液的初始磨损系数比其他3种钻井液的大,随后急剧下降,最终与其他三种钻井液的磨损系数趋于一致;四种钻井液中,油基钻井液的摩擦因数较小,且相对稳定;重晶石粉的含量过高,磨损后期可能会出现摩擦因数陡增的现象。In this paper, the worn casing as used in a certain domestic ultra-deep well oil field is studied. And the full-scale casing abrasion test machine is used to simulate the drilling conditions and drilling fluid performances in order to analyze the wear statuses of the high strength casing in several different drilling fluids. The test results reveal the statuses as follows. When all the other conditions are the same, the casing worn-groove depth and the wear volume as separately caused by the oil-based, the hi-density organic salt, the hi-density saturated brine and the high-performance water-based drilling fluids are slightly different;the initial wear coefficient of the saturated brine drilling fluid is larger than those of the other three drilling fluids, then it drops sharply, and finally, the wear coefficient gets in consistency with the other three ones. Among the said four drilling fluids, the friction factor of the oil-based drilling fluid is small, and relatively stable. In case of high content of the barite powder, the said friction factor will be probably getting increased dramatically at the late wearing stage.

关 键 词：套管 磨损 钻井液 磨损系数 摩擦因数 

分 类 号：TG115.58[金属学及工艺—物理冶金]