HYDRA supported a major installation contractor on a Tension Leg Platform (TLP) tendon remediation campaign in the Gulf of Mexico. As part of a platform life-extension program, HYDRA mobilized the Subsea Responder IV with a dedicated subsea cementing spread to the Mississippi Canyon area to perform tendon cementing operations.
Working in coordination with both the prime installation contractor and the TLP operator, HYDRA successfully completed the cementing of all twelve tendons supporting the TLP. This work both mitigated a future challenge along with restoring designed stiffness and load transfer capability of the tendon system, contributing to extending the operational life of the asset.
HYDRA mobilized the Subsea Responder IV at InterMoor in Port Fourchon, Louisiana, installing a dedicated cementing spread including cement silos, mixers, pumps, hose reels and control panels. The vessel then transited offshore to the Mississippi Canyon area to support the prime installation contractor’s tendon remediation campaign.
Operations were conducted on a 24/7 schedule and included deck integration, ROV readiness and continuous coordination with the client personnel. After completing an initial site survey, HYDRA supported cementing operations on all twelve tendons of the TLP.
Following completion of offshore operations, the vessel returned to Port Fourchon for project close-out before transiting to HYDRA’s shore base in Port Arthur, Texas.
The primary operational challenges involved the operation of the third-party equipment supplied by the client’s cementing subcontractors. HYDRA personnel worked closely with the client’s engineers to mitigate the issues and maintain operational continuity.
HYDRA provided integrated offshore project management, vessel operations, survey services and ROV support to ensure safe and efficient execution of the TLP tendon remediation campaign.
HYDRA’s experienced offshore personnel worked closely with both the client and the TLP operator to maintain operational efficiency and ensure project objectives were met. The ability of the offshore team to adapt to equipment challenges while maintaining safe operations was key to successfully completing the campaign and delivering results for the client.
Region: Gulf of Mexico
General Project Location: Mississippi Canyon Area
Facility Type: Tension Leg Platform
Services Provided: Project Management and Engineering, Survey, Vessel Support and ROV Operations
ROV Systems Used: Schilling HD93 and HD94
Duration of Project: 24 Days
Water Depth: 2,970 ft
Platform: TLP
Client: Prime installation contractor
As a premier topside construction, subsea engineering and project management company, Hydra provides subsea solutions and offshore construction services to domestic and international oil and gas industry clients.
