MOBILE BAY PROJECT FLOAT-ON DECK INSTALLATIONS

A float-on deck mating procedure was successfully used instead of a conventional derrick barge lift for installation of the integrated topsides on three production platforms. This procedure involved mooring the deck transportation barge inside a jacket/pile foundation and then ballasting the barge to mate the deck legs with the piles. The three platforms had topside weights ranging from 3700 to 4800 short tons. Two of the platforms were installed outside Mobile Bay in water depths of 40 and 46 feet and the third platform was installed inside the bay in 14 feet of water. The paper presents aspects of the structural designs and describes the installation procedures, mating hardware, and monitoring systems used to accomplish the float-on deck installations. Factors influencing the selection of this concept are also presented.

• Supplemental Notes:
  • OTC 94, 26th Annual Offshore Technology Conf; 2-5 May 1994; Houston, Tx, USA. Procs. Vol 3, ppr 7499, p 323 [10 p, 3 ref, 3 tab, 11 fig]
• Authors:
  • Birdwell, J R
  • Jordan, J E
• Publication Date: 1994

Language

• English

Subject/Index Terms

• TRT Terms: Offshore platforms
• Old TRIS Terms: Platform decks; Platform installation
• Subject Areas: Bridges and other structures; Marine Transportation;

Filing Info

• Accession Number: 00708825
• Record Type: Publication
• Source Agency: British Maritime Technology
• Files: TRIS
• Created Date: Aug 14 1995 12:00AM