直流与交流变频电动钻机技术经济分析  

Technical and Economical Analyses of Variable Frequency Electric Rig

作　　者：苏成坤[1] 

机构地区：[1]中国石化集团公司油田企业经营管理部,北京100083

出　　处：《石油钻探技术》2004年第5期36-38,共3页Petroleum Drilling Techniques

摘　　要：交流变频电动钻机除具有直流电动钻具的所有优点外,还具有启动平稳、运行经济可靠、过载能力强、维护简单方便等优点。在详细介绍交流变频电动钻机技术特点的基础上,以ZJ70DB交流变频和ZJ70D直流电动钻机为例,分析了其采购成本和运行成本,结果表明,虽然ZJ70DB钻机采购成本要高400万元左右,但是其运行成本每年节省100万元左右,综合经济效益非常显著。因此,在采购钻机时,应优先考虑购买交流变频电动钻机。A alternate variable frequency electric rig has much more advantages than direct electric rig such as steady start, economical run, high overload capability, and simple maintenance, etc. On the basis of introducing technical features of alternate variable frequency electric rig, this paper analyzes its successful run and cost by comparison of ZJ70DB (alternate) with ZJ70D (direct). Analysis results show that although the ZJ70DB rig costs more about 4 million RMB, it can save 1 million RMB every year. Therefore, its comprehensive economic benefits are remarkable. Thus, a alternate variable frequency electric rig should he given priority when purchasing a set of rig.

关 键 词：直流电流 交流电流 电驱动钻机 经济评价 

分 类 号：TE922[石油与天然气工程—石油机械设备]