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TECHNICAL PAPERS

Marine Growth Colonization Process in Guinea Gulf: Data Analysis

[+] Author and Article Information
Morgan L. Boukinda Mbadinga

Mechanics and Genie Civil Institute, Nantes University, 2 Rue de la Houssiniere, BP 92208, 44322 Nantes, FranceMorgan.Boukinda@univ-nantes.fr

Franck Schoefs

Mechanics and Genie Civil Institute, Nantes University, 2 Rue de la Houssiniere, BP 92208, 44322 Nantes, FranceFranck.Schoefs@univ-nantes.fr

Valerie Quiniou-Ramus

 Total S.A. - DGEP/TDO/TEC/GEO, Tour Coupole, 2 Place de Coupole, La Défense 6 - Cedex 45, 92078 Paris la Défense, FranceValerie.QUINIOU@total.com

Michel Birades

 Total S.A. - DGEP/TDO/TEC/STR, CSTJF - Avenue Larribau, 64018 Pau Cedex, FranceMichel.BIRADES@total.com

Raymond Garretta

 Total S.A. - DGEP/TDO/TEC/STR, CSTJF - Avenue Larribau, 64018 Pau Cedex, FranceRaymond.GARRETTA@total.com

J. Offshore Mech. Arct. Eng 129(2), 97-106 (Mar 30, 2006) (10 pages) doi:10.1115/1.2355518 History: Received January 19, 2006; Revised March 30, 2006

Colonization process of marine growth increasingly arouses the interest of the oil industry because engineering design or reassessment of platforms requires forecasting of biological fouling specific to the area where they are located. Numerous publications related to marine growth on installations of North Sea, Gulf of Mexico, or oil sites in other parts of the world tried to answer the need to supply more quantitative data on biological fouling. Unfortunately, there is a lack of qualitative and quantitative published data in the Gulf of Guinea, where biological fouling has a significant impact on cost of structural inspection and maintenance because of the importance of colonization due to favorable environmental parameters (warmer temperature of seawater, intense action of the waves generating a mixing of the nutritive elements, strong light, etc.). This paper is dedicated to bridge that gap and describe ecosystem dynamics of marine growth in the Gulf of Guinea. We describe patterns of development for dominant types of biofouling in the region. Analyses of evolution and related kinetics parameters are carried out to give main trends of colonization process. Predictive models of marine growth development and their statistical parameters are proposed for reassessment and engineering design.

Copyright © 2007 by American Society of Mechanical Engineers
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Figures

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Figure 1

Studied regions in Gulf of Guinea

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Figure 2

Distributions of fouling organisms with time on typical structures established in region “A”

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Figure 3

Distributions of fouling organisms on typical structures established in region “B”

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Figure 4

Distributions of fouling organisms on typical structures established in region “C”

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Figure 5

Distributions of fouling organisms on typical structures established in region “D”

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Figure 6

Profiles of hard fouling with depth at inspection date given, region “A”

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Figure 7

Profiles of hard fouling with depth at inspection date given, region “B”

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Figure 8

Profiles of hard fouling with depth at inspection date given, region “C”

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Figure 9

Profiles of hard fouling with depth at inspection date given, region “D”

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Figure 10

Curves of evolution of hard fouling according to the year of the platforms installation (region A)

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Figure 13

Curves of evolution of hard fouling according to the year of the platforms installation (region D)

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Figure 14

Predictive models of the evolutions of hard fouling according to the depth (region B)

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Figure 15

Predictive models of the evolutions of hard fouling according to the depth (region C)

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Figure 12

Curves of evolution of hard fouling according to the year of the platforms installation (region C)

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Figure 11

Curves of evolution of hard fouling according to the year of the platforms installation (region B)

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