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MODU types

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Proceedings Papers

Paper presented at the SPE/ICoTA Coiled Tubing and Well Intervention Conference and Exhibition, March 23–24, 2010
Paper Number: SPE-130688-MS
... prohibitive in deep water, all because of the two critical factors of needing MODUs and doing the activities through the subsea tree. There are two types of deep water wells: 1. Dry tree wells, and 2. Subsea wells. For wells on a platform with a dry tree, coiled tubing technology might be an alternative...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 2009
Paper Number: OTC-20164-MS
... on the acceptability of the mooring system for a MODU operation. The study has been conducted for semisubmersible MODUs operating in tropical revolving storm conditions. The results could be significantly different when the mix of vessel type, mooring type, and metocean parameters is changed. sway lower-bound...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 2009
Paper Number: OTC-20147-MS
... (GoM) MODU mooring systems that was performed as part of the MODU Mooring JIP (Joint Industry Project). The intent was to determine the relative changes in reliability between different types of MODUs, with different mooring systems, in different water depths, designed for different hurricane...
Proceedings Papers

Paper presented at the OTC Arctic Technology Conference, December 3–5, 2012
Paper Number: OTC-23745-MS
... winds can come from the southwest. These promote the further erosion of the ice and push it to the northeast (Weingartner 2008). Types of MODU s Considered All types of MODU s were considered for Chukchi exploration, semi-submersible, conventional spread-moored drillship, turret moored, and self...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 1998
Paper Number: OTC-8707-MS
... applicable to one MODU type only and is subject to many uncertainties, these criteria are useful as they form a basis for preliminary estimation with a minimum of effort. The environmental conditions and criteria used in the MODU evacuation simulation model are wind speed and wave height. Based...
Proceedings Papers

Paper presented at the Stationing and Stability of Semi-submersibles: Proceedings of an International Conference, June 16–18, 1986
Paper Number: SUT-AUTOE-v9-003
... areas, for mstance the North Sea and the East coast of Canada The expenence to date m operation of all types of Mobile Offshore Dnlling Umts (MODUs) IS approach~ng 4000 ng-years worldwide and nearly 600 rig-years m the North Sea alone. The reason there are so many sem~submersibles m operation...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 2009
Paper Number: OTC-20299-MS
... upgrading their mooring equipment (i.e., increasing the number of mooring lines and anchors size and types). Also affecting this average could be that some of the less robust MODUs have left the Gulf of Mexico Region. 2008 Hurricane Season The Gulf of Mexico saw three hurricanes during the 2008 season...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 2017
Paper Number: OTC-27697-MS
... are presented. Introduction MODUs are just one type of floating facility that uses mobile moorings, also referred to as short-term or temporary moorings. Other types include work-over barges, construction barges, floatels, tender-assisted- drilling (TAD) vessels next to another platform, etc. They all have...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 30–May 3, 2007
Paper Number: OTC-18466-MS
.... The MODU stability criteria have evolved to the present day while retaining the separation between specific requirements for column stabilized, self elevating units, and surface units due to the differing stability characteristics of each type. The column stabilized unit is usually a semisubmersible...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 30–May 3, 2007
Paper Number: OTC-18988-MS
..., the answers to which should be available to a drilling engineer, possibly with some input from the proposed drilling contractor. The questions in the original JIP version fell into two categories: Defining the types of infrastructure (consequences), and Defining the MODU mooring system and proximity...
Proceedings Papers

Paper presented at the The Ninth International Offshore and Polar Engineering Conference, May 30–June 4, 1999
Paper Number: ISOPE-I-99-033
... Specification - Upgrading to 2500 m Water Depth with DP System," for a MODU type TH2800. PETROBRAS (1998b). "Global Structural Analysis - Upgrading to 2500 m Water Depth with DP System," Technical Report (for a MODU type Tt-L2800). PETROBRAS (1998c). "Motion Analysis - Upgrading to 2500m Water Depth with DP...
Journal Articles
Mar Technol SNAME N 19 (04): 341–349.
Paper Number: SNAME-MTSN-1982-19-4-341
Published: 01 October 1982
.... The decks, compartments and tanks of MODU's are usually dedicated to specific types of cargo. Eight basic types (water, fuel, tubular goods, dry bulk, sack materials, liquid mud, ballast and drilling equipment) of cargo are usually carried. Depending upon the relative value of the cargo to the operator...
Proceedings Papers

Paper presented at the SPE/IADC Drilling Conference, March 5–7, 2013
Paper Number: SPE-163429-MS
... Abstract In Arctic offshore areas where exploration and production of hydrocarbons may occur, a substantial portion lies in water depths less than 50 meters. Currently there are no MODU's which can drill all different well types, production and exploration, over a wide range of water depths...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 30–May 3, 2012
Paper Number: OTC-23436-MS
... that are applicable to specific types U.S. flagged vessels and MODUs, floating facilities, and fixed facilities on the OCS. Table 2 lists subchapters with general applicability across all units operating on the OCS. CFR Title Subchapter Vessel Type 33 N Artificial Island and Structures on the OCS 46 C Uninspected...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–8, 2008
Paper Number: OTC-19607-MS
.... The different types of consequences that are associated with MODU mooring failures include: 1. Health and Safety 2. Environmental 3. Financial 4. Corporate reputation and image 5. Industry reputation and image 6. National interest. Existing procedures for MODU evacuation operations during hurricane season...
Proceedings Papers

Paper presented at the The Sixth International Offshore and Polar Engineering Conference, May 26–31, 1996
Paper Number: ISOPE-I-96-317
... to typical MODU type vessels. In MODUSIM, it is assumed that the total expected lateral strength of the mooring system is Ru' There are two modes of mooring system failure: 1) all the mo~ring lines are broken and the MODU is in the free floating condition, and 2) the horizontal hurricane load is larger than...
Proceedings Papers

Paper presented at the SNAME 24th Offshore Symposium, February 20, 2019
Paper Number: SNAME-TOS-2019-012
... to evade the extreme event completely. For permanent systems, this allows for cost savings and efficiencies when designing and selecting mooring component types, mooring component sizes, number of mooring lines, and installation vessel capabilities. For MODUs that have fixed mooring design capacities...
Proceedings Papers

Paper presented at the Arctic Technology Conference, October 24–26, 2016
Paper Number: OTC-27478-MS
.... This focused purely on MODUs rather than land rigs or platforms. Notable Arctic MODU losses are presented in the following table: Table 1 Notable MODU incidents in and around Arctic waters Rig Location Date Cause Type Dan Prince Alaska, North Pacific October, 1980 Sank in bad weather under to Jack-Up Okha...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 2017
Paper Number: OTC-27636-MS
... 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...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 2009
Paper Number: OTC-20141-MS
... system. The likelihood that a MODU dragging polyester would cause damage was much lower than, for example the damage likely to be caused by a MODU dragging chain. In summary the 2007 Checklist summed the damages for all types of infrastructure and reported it as a total, and with respect to direction...

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