当采用马达水平钻进页岩气地层时,通常因井筒内台阶、岩屑床等问题而难以上提钻具,但随着PDC Ghost扩眼钻头(图1)的出现,这些问题均得到很好解决。Stabil钻井公司通过多年现场及研发经验,开发出了PDC Ghost扩眼钻头,能有效解决页岩气水平井钻井中的狗腿、台阶及岩屑床问题。这种PDC Ghost扩眼钻头是一 When using a motor to drill horizontally into a shale gas formation, it is often difficult to lift the rig due to problems in the wellbore steps, cuttings beds, etc. However, with the advent of the PDC Ghost reamer (Figure 1) Good solution. Stabil Drilling Company has developed PDC Ghost reaming bit through years of field and R & D experience, which can effectively solve the problems of dogleg, step and cuttings bed in shale gas horizontal well drilling. This PDC Ghost reaming bit is one