The completion of major subsea installation operations utilized the company’s specialized marine assets and technical expertise to deliver comprehensive offshore services. C-I deployed the MPSV Dove equipped with a 150-ton crane and C-Leader offshore supply vessels (OSVs) to support critical subsea infrastructure installations over a 100-day operational period.
The project scope encompassed multiple complex subsea installations, demonstrating C-I’s capabilities in handling large-scale offshore operations. The total weight of the most complex lift was a jumper weighing 143,245 lbs, including spreader bar, rigging, and jumper components. Hub-to-hub length was 96 ft 3-5/8 in. in a Z-shape configuration.
Nathan Wolford, project manager, C-I, said, “This project demonstrates C-I’s ability to execute complex subsea installations with precision, utilizing the Dove vessel’s 150-ton crane to successfully install a substantial 16-inch oil export jumper. The demanding Z-shaped configuration and significant weight requirements showcased not only advanced engineering execution but also the specialized marine handling expertise of our team.”
Completed installations included:
- 1 x 16 in. gas export jumper installation
- 1 x 10 in. gas export jumper installation
- 1 x 16 in. oil export jumper installation featuring a Z-shaped configuration
- 2 x Leon flowline jumpers
- 2 x Leon well jumpers
- 1 x Castile well jumper
- Additional operations included comprehensive support for pigging and dewatering operations, precision metrology services, and hull inspection services.
This series of installations contributes to a major milestone in the Gulf of America Leon-Castile field development, with first oil now flowing to the Salamanca hub.
