By adapting the fundamental design of the drill string, DualPipe overcomes commonly recognised drilling challenges. Using DualPipe, it is possible to access reservoirs previously considered challenging or impossible to drill conventionally.
This unique, dual channel configuration allows drilling fluid to be pumped down the outer pipe annulus pipe while taking the returns to surface up the central pipe.
DualPipe controls system pressure to maintain a static gradient in the wellbore while circulating fluid through the bit.
Reduces cost and risk of massive drilling fluid losses
Allows longer sections with narrow pressure windows
Increases pressure margins at greater depths
Enhances wellbore pressure management ability
Cuttings Free Wellbore
DualPipe removes drill cuttings from the wellbore just above the BHA and transports them back to the surface via the inner pipe.
Provides superior hole cleaning in horizontal wells
Eliminates the accumulation of cuttings beds
Enables low energy drilling and reduced drill string fatigue
Reduces risk of stuck pipe, wellbore pack-off and wash-outs
Increased Reservoir Access
DualPipe enables the drilling of long sections while remaining within a narrow pressure window.
Enables precise formation evaluation from drill cuttings
Enables longer sections in reservoir
Reduces number of casing strings required
Reduces well count and number of surface facilities