| 出生地 |
Shandong China (Mainland) |
| 牌子的名字 |
bosun |
Ifthecasinginoillayerisseriouslydamagedortheoillayerisburiedforsloughingsandandtheproductionofthewellcannotbecontinued,"windowing"orsidedrillingcanbecarriedoutinthecasingabovetheoillayertoformanewwellbore,inordertousetheuppercasingandreducethecostofre-drilling. Sidedrillingincasingistore-drilladeviatedwelllaterallybasedonupperpartofcasingoftheseriouslydamagedwell.Itisamethodforrestoringproductioncapacity. Sidedrillingtoolsincludethedeflectingtool,windowingtoolaswellasthedown-holedrillmotorforprovidingpower.