CAN is redefining the standard in structural wellhead foundations.
This technically superior solutions has been proven in numerous installations, to cut well construction time and cost, reduce risk and improve safety.
What is a CAN?
The CAN (Conductor Anchor Node) is a combination of suction anchor and one joint of conductor. The suction anchor pushes the conductor into the seabed, providing top support for the well.
This solution was developed to facilitate installation of the top hole with light vessels, providing operational and commercial benefits by enabling the subsea well foundation to be in place before the rig arrives on location.
Conventional wellhead - the "weak link"
CAN - the smarter well foundation
Bending control
Fatigue
Load capacity
Cementing quality and top of cement
Risk of requiring top-up cementing
Conductor installation rig time
Haphazard
Limited
Uncertain
"best effort"
Yes
1 - 3 days
Engineered solution
Engineered lifetime
Calculated and verified
Ensured - pre-installed in the workshop ensures quality and integrity
0
Addressing fatigue
Due to fatigue related issues, the wellhead system is widely recognised as the “weak link” in conventional well design. CAN protects the wellhead and delivers a reliable well foundation by providing a high load capacity, stable platform, for a jetted conductor, or drilling and cementing a conductor, depending on the well requirements.
The CAN has also enabled jetting in conductors in Norwegian Sea soil conditions. Here, soft seabed soil conditions may rapidly increase in strength to firm, non-jetable clays, thus stopping further conductor penetration.
Here our COO, Wolfgang Mathis explains more:
Why use a CAN?
This novel and patented approach of developing and installing a subsea wellhead foundation delivers a range of commercial savings and operational benefits when running exploration and production wells.
Operational benefits
Zero rig time: pre-installed by a vessel
Managed fatigue capacity
Bending control
Load capacity is calculated and verified
Pre-installed conductor in the workshop, ensures quality and integrity
No cementing or grouting
Easy P&A
Reduces risk due to reduced open-water rig operations making risk management ALARP
Improved HSE
- Hand's off conductor installation
- Reduced heavy lifts
- Simplified logistics
- Best available practise
Reduced season dependancy
Commercial benefits
Reduced project execution time
Saves 2 - 4 rig days
Pre-mounted equipment cost savings
Accellerated production can impact the Net Present Value of the well
When to use?
Neodrill have developed four CAN-based solutions to provide a smarter start to the well construction process in both exploration and production wells.
Exploration
Helping to move the profit point
Production
Accelerating field production
Why use a CAN?
This novel and patented approach of developing and installing a subsea wellhead foundation delivers a range of commercial savings and operational benefits when running exploration and production wells.
Operational benefits
Zero rig time: pre-installed by a vessel
Managed fatigue capacity
Bending control
Load capacity is calculated and verified
Pre-installed conductor in the workshop, ensures quality and integrity
No cementing or grouting
Easy P&A
Reduces risk due to reduced open-water rig operations making risk management ALARP
Improved HSE
- Hand's off conductor installation
- Reduced heavy lifts
- Simplified logistics
- Best available practise
Reduced season dependancy
Commercial benefits
Reduced project execution time
Saves 2 - 4 rig days
Pre-mounted equipment cost savings
Accellerated production can impact the Net Present Value of the well