Dynamically positioned Derrick Barge and position measuring equipment for Lena guyed tower installation

Conference · Tue May 01 00:00:00 EDT 1984 · Proc., Annu. Offshore Technol. Conf.; (United States)

OSTI ID:6162265

Ziems, L D; Kan, W C; Neudorfer, M L; Stidston, E S.B.

A dynamic positioning (DP) system was installed on Brown and Root's derrick barge Atlas I and successfully used during the Lena guyed tower guying system installation. Modular design and onshore testing of the components resulted in rapid DP system installation and commissioning. Only minor DP equipment problems were experienced throughout the guying system installation. A long-baseline acoustic positioning system was used to measure the positions of the anchor piles, clump weights, and jacket during the Lena installation. The system provided relative position measurement accuracies on the order of + or - 5 feet in 1000 feet of water.

• Research Organization: Exxon Co.
• OSTI ID: 6162265
• Report Number(s): CONF-8405208-
• Journal Information: Proc., Annu. Offshore Technol. Conf.; (United States), Journal Name: Proc., Annu. Offshore Technol. Conf.; (United States) Vol. 1; ISSN OSTCB
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
42 ENGINEERING
423000 -- Engineering-- Marine Engineering-- (1980-)
ACCURACY
ACOUSTIC MONITORING
BARGES
DISPLACEMENT GAGES
FOUNDATIONS
INSTALLATION
JACKETS
MEASURING INSTRUMENTS
MECHANICAL STRUCTURES
MODULAR STRUCTURES
MONITORING
MOORINGS
OFFSHORE PLATFORMS
POSITIONING
SUPPORTS
TOWERS