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Case

Solving Subsea Abrasion Challenges: Protective Sleeves Solution for Deepwater Oil & Gas Fields


Client: An Internationally Leading Energy Company

Application: Deepwater Oil and Gas Fields in the Brazilian Pre-salt Region

Products: Offshore Abrasion Resistance Protective Sleeve

1. Project Background

The development of pre-salt oil fields in the southeastern waters of Brazil represents one of the most challenging frontiers in global deepwater exploration. Operating in water depths exceeding 2,000 meters, an internationally leading energy company required a robust solution to protect critical subsea assets, including risers, jumpers, and umbilicals, which are subject to persistent swaying, seabed friction, and erosion caused by strong currents and sand particles.

2. Our Solution

As a specialized provider of offshore engineering solutions, we engineered a high-performance Offshore Protective Sleeve system tailored to the specific environmental and structural demands of the Brazilian pre-salt fields:

Core Design & Material Engineering: The sleeve utilizes a multi-layer composite structure. The inner layer consists of high-strength, abrasion-resistant polyurethane to combat friction and corrosion. The middle layer acts as a compression-resistant buffer to absorb mechanical impact, while the outer layer provides a protective sheath against UV radiation and seawater-induced degradation.

Modular Installation: The system is engineered as a two-half "clam shell" design. This facilitates rapid, diver-assisted or ROV-compatible field installation on existing platforms without the need for subsea welding or heavy construction equipment.

Reliable Fastening: Equipped with high-performance, corrosion-resistant clamping bands, the system ensures a secure, long-term fit under dynamic offshore loading conditions.

3. Engineering Value

Extended Asset Life: By isolating the riser from direct contact with hard subsea templates and mudmats, the sleeve effectively absorbs frictional energy, projected to extend the service life of critical wear points by over 300% compared to the original design life.

Lifecycle Cost Optimization: The solution eliminates the need for unplanned, high-cost subsea interventions, significantly reducing operational expenditure (OPEX) and mitigating the financial risk associated with production downtime.

Regulatory Compliance: The product is fully engineered to meet the stringent safety and reliability standards mandated by the Brazilian National Agency of Petroleum, Natural Gas, and Biofuels (ANP) and international offshore engineering benchmarks.

By providing a high-performance, modular protective sleeve, we successfully mitigated severe abrasion risks for critical subsea assets in Brazil’s ultra-deepwater pre-salt fields, significantly extending equipment service life while optimizing lifecycle costs and ensuring full regulatory compliance. We also provide a wide range of specialized cable protection systems tailored to your specific project needs.