laybarge

plural laybarges

1. A specialized barge equipped for laying subsea pipelines, typically used in offshore oil and gas operations. Laybarges are outfitted with welding stations, tensioners, stingers, and other equipment necessary for assembling and installing pipelines on the seabed.

   The marine pipeline is usually laid by what the construction industry calls a “laybarge”.

   1973, United States. Congress. House. Committee on Merchant Marine and Fisheries, Offshore Ports and Terminals: Hearings Before the Committee on Merchant Marine and Fisheries, House of Representatives, Ninety-third Congress, First Session, on H.R. 5091 ... H.R. 5898 ..., U.S. Government Printing Office, page 720

   2 more examples

   Closer to the coast, the large laybarge used in the open sea is replaced by smaller vessels beter able to navigate narrow channels and shallow water.

   1997, National Academy of Engineering, edited by Deanna J. Richards, The Industrial Green Game: Implications for Environmental Design and Management, National Academies Press, page 157

   There are many cases of underwater pipelines where significant spans occur, such as the unsupported span from a laybarge, or where the lateral loads from weight or current are caried by a combination of tension and large deflections rather than bending moments.

   2025, Mohammed Ismail Iqbal, Vamsi Krishna Kudapa, Oil Well Production Mechanism: Training Manual on Well Production Operations for Non-production Engineers (Oil and Gas Production Operations) (River Publishers Series in Energy Sustainability and Efficiency), CRC Press, page 325