Monday, 30 April
9:30 a.m. to 1200 noon
Room 312
Topic: Developments in Watertight Integrity on Floating Offshore Installations
(OTC 18466) J.H. Rousseau, T.S. Bush, J.A. Breuer, ABS
Overview: The hurricane seasons in 2005 and 2004 highlighted the need for a better understanding of flooding hazards and the associated requirements for internal and external watertight integrity on mobile offshore drilling units (MODUs) and floating production installations. ABS has made significant changes regarding subdivision and watertight integrity to the ABS MODU Rules since they were first published in 1968. The relevant requirements as of 2006 are discussed in this paper along with proposed modifications based on lessons learned in the Classification of the latest generation of MODUs, spars, tension leg platforms, and semisubmersible production installations including observations from the recent hurricane seasons.
The proposed changes are aimed at limiting water ingress and preventing progressive flooding. The changes address issues such as controls and alarms for watertight doors and hatches, protection of external ventilation openings, locations and types of valve controls, and measures for ensuring water tightness of penetrations for cables and ventilation.
Tuesday, 1 May
9:30 a.m. to 1200 noon
Room 610
Topic: ABS Development of a Guide for Compressed Natural Gas Carriers
(OTC 18999) P.G. Rynn, J. Gaughan, H. N. Patel, C. Serratella, ABS
Overview: This paper discusses the various technical issues to be considered for all aspects of a Compressed Natural Gas (CNG) Carrier project. The paper outlines the steps used to issue various levels of approval under the ABS Novel Concepts Guidance Notes and how the Approval In Principle or AIP process laid the foundation for development of the ABS Guide for Building and Classing CNG Carriers.
Tuesday, 1 May
2:00 p.m. to 4:30 p.m.
Room 604
Topic: Risk-Based Classification of Offshore Production Systems
(OTC 18776) M. Tremblay, J. Ballesio, B. Montaruli, ABS
Overview: Risk based verification methods are being utilized more frequently in the offshore industry as a means of managing and confirming that an acceptable level of safety has been attained in the design and fabrication of production systems. In an effort to integrate this risk based approach with Classification and certification activities, a new process has been developed to obtain risk based Classification of production systems in lieu of the application of prescriptive Classification Rules. The information presented in this paper is based upon practical experience as well as ABS Guides and Guidance Notes on the application of risk assessment for Classification.
ABS Consulting, a subsidiary of the ABS Group of Companies Inc. and an affiliate of ABS will also be presenting at OTC.
Monday, 30 April
2:00 p.m. to 4:30 p.m.
Room 312
Topic: Transition to Risk-Based MODU Codes for the Gulf of Mexico (OTC 18988) J.J. Stiff, ABS Consulting *** (ABS Consulting is an affiliate of ABS)
Overview: There is increasing pressure from regulators and industry players for the semi-submersible Mobile Offshore Drilling Unit (MODU) site specific mooring design criteria to be risk based because of the large variability of site infrastructure. This paper describes a process for developing a sequence of approaches, starting with a simple “assume the worst case”, through an intermediate (checklist) approach, rather than, or as well as a fully incorporated risk assessment and criteria development. The paper describes the foundation for the methodologies, and establishes some clear guidelines as to how such risk based assessments should be performed. While detailed quantification is not normally necessary, rigorous analytical approaches are needed in order to demonstrate reasonable compliance. The paper establishes the foundation for the requirements.
Location: All papers will be presented on-site at the conference, Reliant Center, One Reliant Park, 8400 Kirby Drive, Houston, TX USA 77054 |