Subsea Structures in Oil and Gas: The Underwater Backbone of Production Systems

By Oko ImmanuelFounder & Owner, Offshore Pipeline InsightM.Eng in Subsea Engineering | Former Roughneck | Texas A&M AlumnusMarch 04, 2026 In offshore oil and gas, subsea structures form the critical foundation and protective framework for production equipment on the seabed. These engineered underwater structures support, align, protect, and stabilize components like wellheads, Christmas trees, manifolds, jumpers, and […]

What is Subsea in Oil and Gas?

By Oko ImmanuelFounder & Owner, Offshore Pipeline InsightM.Eng in Subsea Engineering | Former Roughneck | Texas A&M AlumnusMarch 04, 2026 Subsea technology is the backbone of modern offshore oil and gas production, enabling safe and efficient extraction of hydrocarbons from reservoirs beneath the seabed often in deep or ultra deep waters where surface platforms are […]

Subsea Pigging in Long Tiebacks: Best Practices for HPHT and Transition Pipelines

March 4, 2026By Oko ImmanuelFounder & Owner, Offshore Pipeline InsightM.Eng in Subsea Engineering | Former Roughneck | Texas A&M Alumnus. Pigging is essential for cleaning, inspection, and flow assurance in long subsea tiebacks (>50 km). In HPHT and transition pipelines (hydrogen/CO₂), it prevents wax, scale, debris, and integrity issues. Pig Types Challenges in Subsea/HPHT Diagram: […]