Shell picks Hydra Subsea for Gulf pipeline tie-ins: cutting costs

Hydra Subsea has secured a commercial agreement with Shell to install short-distance subsea pipelines in the Gulf of Mexico. The deal focuses on six- and eight-inch rigid pipelines, with the Appomattox gas lift flowline identified as the potential first project under the new collaboration.

To fulfill the agreement, Hydra is reactivating its Subsea Legend, an offshore construction and subsea installation vessel. The ship will undergo significant upgrades, including the installation of a 250-ton active heave-compensated subsea crane, a new propulsion system, and an enhanced dynamic positioning system. These improvements aim to support Hydra’s Standard Solution, a model designed to simplify subsea installations through repeatable engineering and standardized configurations.

Vessel upgrades to support standardized operations: Hydra Subsea

The approach targets smaller deepwater developments in the region, where traditional methods often prove too complex or costly. By reducing variability in project execution, Hydra expects to improve cost efficiency and scheduling reliability for qualifying projects.

The Appomattox field, located 80 miles off the Louisiana coast, serves as the first proposed application for the agreement. Shell operates the field with a 79% stake, while INEOS holds the remaining 21%. Though the gas lift flowline is the initial candidate, each project will undergo separate evaluation and approval before moving forward.

Trevor Davis, CEO of Hydra Subsea, highlighted the broader potential of the model in a recent statement:

Appomattox field set as initial focus

«Smaller deepwater developments need an execution model aligned with their scale and economics. This agreement gives Shell an additional option for selected projects where a repeatable installation approach can improve predictability. We believe that this same approach can be applied across the Gulf with other operators.»

Trevor Davis
·
CEO of Hydra Subsea

The agreement establishes the commercial and technical framework for future projects, though final awards will depend on individual assessments. With the Subsea Legend’s upgrades and Hydra’s standardized approach, the company aims to provide a more predictable and cost-effective solution for subsea tie-ins in the Gulf of Mexico.

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