带正倒划眼稳定器(石油设备)
带正倒划眼稳定器是在稳定器工作带的上、下两端,特殊设置数片切削齿。
这样,在钻进和起钻过程中此种稳定器可起到双向切削作用。可在钻进过程中起到修整井壁的作用,使井眼轨迹尽量达到理想状态,防止出现狗腿现象。特别是在起钻过程中,往往由于井眼缩径等原因导致起钻困难,此时,该稳定器上的倒划眼齿可起切削作用,以消除缩径等现象,从而为钻井节省大量时间和费用。msn:xiaoyouloveyouhotmail.comthe stabilizer with back-reaming is selecting the appropriate location and through special processing method to array few teeth as a cutting edge. in this way, this stabilizer can be played cutting when the process of drilling and pull out. during drilling process, forward and backward redressing can be played the role to rpare and maintain the wall of a well. making trajectory of borehole as far as possible to achieve ideal condition an preventing the phenomenon of dogleg. especially in a drilling process, more often than not leading to drilling difficultly becauseof hole shrinkage, and so on, at the moment, the forward and backward redressing of this stabilizer can be played cutting, to eliminate hole shrinkage phenomenon, thus saving time and costs for drilling.
