Offering an unrivaled ability for shallow kick-off
A short conductor is integrated into the CAN in the workshop and installed as one package by a vessel (anchor handler, offshore construction vessel).
This clever combination offers simplified P&A operations (saving 2-4 days) in addition to mitigating a series of common top-hole related risks.
Significant cost savings and it's unrivaled capacity for shallow kick-off are key drivers for use.
In the North Sea Wisting Central II well, the CAN enabled kick off to start at 10 m, ensuring that the reservoir could be penetrated horizontally at 250 m. This set a new drilling record as the shallowest horizontal offshore well drilled from a floating drilling facility.
CAN-ductor installation from a vessel
As the CAN-ductor is installed from a vessel ahead of rig arrival the the 36’’ (42’’) hole drilling, conductor running and cementing operations are removed from the rig schedule. Consequently, safety is improved with the reduction in heavy lift handling and the ‘environmental footprint’ will be reduced.
The CAN concept offers unparalleled load capacities for single production wells, and easy integration of protection structures and pre-installation of flow lines, etc.
Exploration wells (mainly)
Load carrier for conductor jetting
Pre-rig installed conductor benefits
Independent of rig schedule
Saves rig time
Reduces open water time
Saves 1 cement job
Critically the CAN-ductor provides a reliable well head foundation with radically improved stability compared to conventional well heads. In the 22 projects carried out to date CAN has a proven inclination < 1 deg.
In addition, CAN overcomes fatigue issues with less, or no risk, of fatigue issues while installed. This removes the risk of reduced operations time, which can occur due to fatigue.
Verified load capacity
Shallow kick-off possible