EnerMech supports U.S. Gulf decommissioning program for Subsea7

June 24, 2026

(WO) — EnerMech has completed a pipeline flushing and cleaning project for Subsea7 as part of an offshore field decommissioning program in the U.S. Gulf of America/Mexico.

The scope involved flushing and cleaning a long-distance deepwater oil export pipeline to support decommissioning and abandonment activities. According to EnerMech, the work was designed to meet regulatory and environmental requirements while preparing the pipeline for safe retirement.

The company deployed an integrated solution that included high-pressure pumping, hydrocarbon filtration and vessel-based operations. Residual hydrocarbons were displaced from the pipeline, achieving hydrocarbon-free status in accordance with environmental standards.

"This award from Subsea7 reinforces EnerMech's position as a trusted partner for complex pipeline decommissioning projects," said Charles "Chuck" Davison Jr., CEO of EnerMech. "The scope involved technically demanding work in a challenging offshore environment, requiring proven capability, experienced teams and a relentless focus on safety."

Nuno de Sousa, senior vice president of Energy Solutions at EnerMech, said pipeline flushing and cleaning are critical components of offshore decommissioning programs and require close coordination of personnel, equipment and project controls.

Engineering, preparation and offshore execution were completed safely and in line with project requirements, the company said. The project marks a milestone in the broader decommissioning campaign and highlights growing demand for specialized offshore pipeline cleaning and abandonment services as operators retire aging infrastructure in mature producing regions.

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