定向井悬点载荷计算与抽油机选型优化研究与应用  

THE CALCULATION OF POLISHED ROD LOAD AND OPTIMIZED STUDY ON LECTOTYPE OF PUMPING UNIT FOR DIRECTIONAL WELL

作　　者：刘鹏刚[1] 蒲万芬[1] 谭鑫[2] 李林林[3] 刘国栋[3] 苏成[3] 杨金川[3] 

机构地区：[1]油气藏地质及开发工程国家重点实验室.西南石油大学 [2]中国石油大学石油工程教育部重点实验室 [3]长庆油田分公司第一采油厂

出　　处：《钻采工艺》2016年第1期99-100,106,共3页Drilling & Production Technology

摘　　要：针对目前南梁油田产建井抽油机选型不合理,负载率偏低,存在"大马拉小车"的现象,开展了抽油机悬点载荷影响因素分析研究。运用灰色关联法确定出影响抽油机最大悬点载荷的主要因素-泵深,并以此为计算依据,采用统计法优化出一种定向井不同泵深范围悬点最大载荷计算的新方法,以此指导抽油机选型。现场应用表明,相比于传统的仅采用一个计算系数的经验公式,优化后的悬点载荷计算准确率可提高4.5%,机型降低1.3个级别,负载率上升12.8%,节能降耗效果明显。Based on the situation of unreasonable lectotype of pumping unit,relatively low load ratio and the existence of the'big mara car'phenomenon in Nanliang oilfield,analysis of influence factors of polished rod load of pumping unit was carried out. A new calculation method of directional well maximum polished rod load was optimized by using gray correlative method and statistical method,to guide lectotype of pumping unit. Compared to the traditional empirical formula which only uses one calculating coefficient,the optimized suspension point load calculation accuracy has been increased by 4. 5%,the model of pumping unit has been reduced 1. 3 levels and load ratio rose by12. 8%. The energy saving and consumption reduction effect was obvious.

关 键 词：定向井 灰色关联分析法 悬点载荷 计算系数 负载率 抽油机选型 

分 类 号：TE933.1[石油与天然气工程—石油机械设备]