摘要
多次循环开关阀可在钻柱的某一特定位置多次进行流体通道的切换,广泛应用于水平井、大位移井中解决岩屑床堆积、地层漏失等问题,还可保护下方工具(MWD、LWD、涡轮、螺杆等)不受流体排量及流体性质的损害。介绍了国内外多家公司研制的多次循环开关阀,并进行了技术对比分析。提出了多次循环开关阀的几点发展建议。
Multiple activated circulation valve can change the fluid channel at a specific location several times,can be widely used in horizontal wells, large displacement wells to solve the cuttings bed accumulation, formation leakage etc. , can also protect below tool （MWD, LWD, turbine, screw, etc. ） not to be damaged by fluid rate and fluid properties. Introduction has been conducted on the technical features of foreign and domestic companies multiple activated circulation valve. And some suggestions for the development of multiple activated circulation valve are put forward.
出处
《石油矿场机械》
2016年第11期98-101,共4页
Oil Field Equipment
关键词
钻井
循环阀
发展趋势
drilling
circulating valve
developing trend
