Active Divertor Definition

The Diverter incorporates the use of an inflatable bladder or spherical packing element, which is either inflated or activated by means of an external hydraulic pressure source which is remote to the Diverter itself - these are either activated manually or automatically. The seal around the Drill String is affected if the hydraulic pressure behind the packing element is greater than the wellbore pressure at any given time.To maintain the excessive hydraulic pressure, excessive to that pressure required to effect a seal around the drill string, results often in premature wear of the packer element. Good housekeeping on location is paramount, forklifts can and do run over and damage hydraulic lines etc.The active system is labour intensive and usually requires a full time operator to be on location at all times whilst the Diverter is in use, this can make the active system uneconomical in marginal operations.