... Abstract A digital twin representing the drilling system of a dynamically positioned (DP) mobile offshore drilling unit (MODU) has been developed and deployed in offshore Brazil. The primary output of the digital twin is a set of dynamic watch circles which are generated based off the predicted...

... onshore tight oil projects. This paper's focus is the Semisubmersible Floating Production System (FPS). It chronicles the forty five year progression of FPS technology from its humble beginnings in 1975 as a converted Mobile Offshore Drilling Unit (MODU) deployed on the Argyll field in the North Sea...

... The coupling effects between MODU and slim drilling riser are of primary importance in analysis of dynamic response of drilling riser system. However,, the effect of MODU on drilling riser is simplified in conventional model in a way of only considering RAO of MODU in frequency-domain...

... Abstract There are many idle mobile offshore drilling units (MODU) that present potential opportunities to reduce the cost of field development. This paper summarizes the background and proposes a design methodology that can be applied when companies look into the potential of modifying...

... Abstract With a goal to improve the overall reliability of moorings used by MODUs (Mobile Offshore Drilling Units), this paper reviews gaps and issues in design standards and operation practices. MODU moorings stay at one location for a short term, compared to tens of years for permanent...

... Abstract A study was performed to provide develop guidance regarding design basis blast loads for mobile offshore drilling units (MODU). Release of flammable materials may result in a vapor cloud explosion (VCE) which can apply damaging blast loads to critical areas of the MODU. Computational...

... Abstract The authors performed a computational fluid dynamics (CFD) analysis of a self-elevating mobile offshore drilling unit (SE MODU) as a replacement for wind tunnel testing. The authors utilized an unsteady RANS method to model wind forces on an SE MODU for a variety of wind headings...

... Abstract As with all ‘high consequence of failure’ systems, MODU mooring systems are subject to regulatory inspection regimes. This involves a combination of visual and mechanical measurement techniques that allow classification authorities to judge the onward suitability of individual mooring...

... OTC 20165 Moored MODU Risk Assessment D. Petruska, H. Banon, P. Liagre and M. Leary, BP America, Inc., A. Ku, Energo Engineering, Inc. Copyright 2009, Offshore Technology Conference This paper was prepared for presentation at the 2009 Offshore Technology Conference held in Houston, Texas, USA, 4 7...

... OTC 20141 MODU Risk-MODU Mooring Strength and Reliability JIP Overview Craig Castille, ENI Petroleum; Darrel Pelley, Transocean; John J Stiff, ABSG Consulting Copyright 2009, Offshore Technology Conference This paper was prepared for presentation at the 2009 Offshore Technology Conference held...

... OTC 20143 MODU Risk- MODU Mooring Comparative Risk Assessment John J Stiff, ABSG Consulting Copyright 2009, Offshore Technology Conference This paper was prepared for presentation at the 2009 Offshore Technology Conference held in Houston, Texas, USA, 4 7 May 2009. This paper was selected...

... will summarize the current rules and recommended practices for drag embedment anchors and their application. It will then show the effect on drag embedment anchors and the application for MODU moorings. Introduction Most floating MODUs are moored using drag embedment anchors, either fluke or plate anchors...

... Abstract A number of hurricanes have passed through the Gulf of Mexico resulting in MODUs parting moorings or collapsing, but none have come close to the devastation caused by Hurricanes Katrina and Rita which came through the Gulf of Mexico in August and September 2005. 20 semi-submersible...

... design return period redundancy upstream oil & gas reliability analysis factor normal strength annual probability probability subsea system west region system failure mooring system design pf range 0 annual pf gulf energo engineering central region line failure modu return...

... OTC 20299 MODU Risk Assessments Regulatory Perspective Lance Labiche and Jane Powers, Minerals Management Service This paper was prepared for presentation at the 2009 Offshore Technology Conference held in Houston, Texas, USA, 4 7 May 2009. This paper was selected for presentation by an OTC...

... potentially allows for damaged mooring systems to survive longer during an extreme event. Field and mooring design approval experience with this mooring foundation since 2007 indicates the OMNI-Max anchor reduces installation cost and is a valuable tool to reduce risk on moored MODU locations during hurricane...

... west africa intervention deep water exploration riser drilling equipment fpso modu drilling cost upstream oil & gas marginal field production facility offshore technology conference production materiality subsea system paradigm discovery platform OTC 19642 The Next Major...

... assessment infrastructure consequence category return period rp 2sk upstream oil & gas design return period hurricane season mooring system criteria risk assessment commentary basic risk assessment probability information subsea system api rp 2sk modu operation operation...

... OTC 18988 Transition to Risk Based MODU Codes for the Gulf of Mexico John J. Stiff, ABS Consulting Copyright 2006, Offshore Technology Conference This paper was prepared for presentation at the 2007 Offshore Technology Conference held in Houston, Texas, U.S.A., 30 April 3 May 2007. This paper...

... without significant increase of capex or opex. Extending the water depth capability of a moored MODU on Shell's contract would address both challenges. A cost-effective upgrade to a rig's maximum water depth rating requires upgrading both drilling and stationkeeping capabilities within the platform's...