Multi-String Triple Bore Surface Wellhead Cutting

The Solution

Claxton deployed its proven xcalibre Abrasive Cutting system, supported by dedicated project management and more than 20 years of experience delivering solutions for complex and unconventional offshore challenges.
Single-Trip Triple-Bore Severance
A single-trip methodology eliminated the requirement for multiple tool runs, significantly reducing offshore execution time and lowering overall operational complexity.
Rigless Execution
By removing the need for a drilling rig, Claxton minimised rig exposure, reduced costs, and enhanced overall P&A campaign efficiency.
Controlled OBM (Oil Based Mud) Management
The cutting system facilitated controlled recirculation of well fluids during severance, ensuring effective containment, environmental protection, and full regulatory compliance.
Integrated Delivery from a Single Regional Base
Leveraging in-house engineering expertise, Claxton supplied all services, equipment, and personnel from one regional hub. This streamlined logistics, reduced interface risk, and simplified project execution for the operator.

The Result

The campaign was completed safely, efficiently, and in full alignment with the planned schedule, with zero safety incidents and no environmental impact. The single-trip abrasive cutting methodology performed exactly as engineered, delivering a clean and controlled severance across all three bores in one deployment.

By eliminating multiple tool runs and removing the requirement for a drilling rig, the operator achieved a significant reduction in offshore time and associated costs. The streamlined execution minimised operational risk, reduced vessel exposure, and enhanced overall campaign efficiency.

The controlled management of OBM and well fluids ensured full regulatory compliance while maintaining the highest environmental standards, providing confidence to both the operator and regulatory stakeholders.

This project successfully demonstrated the viability and value of rigless well severance in a highly constrained triple bore configuration. It established a new benchmark for complex well decommissioning operations in the region and further strengthened Claxton’s reputation as a trusted partner capable of delivering innovative, safe, and efficient solutions for challenging offshore P&A campaigns.