By Mark J Kaiser
Jackups, semisubmersibles and drillships are the marine vessels used to drill offshore wells and are said jointly as cellular offshore drilling devices (MODUs). MODUs are provided via newbuild development and function during the global in hugely aggressive local markets. The Offshore Drilling and Rig development marketplace within the Gulf of Mexico examines the worldwide MODU provider and development and describes the commercial affects of rig building within the United States.
The commercial association and significant gamers within the agreement drilling and building markets are defined and classified. Dayrates within the agreement drilling industry are evaluated and hypotheses relating to dayrate components are established. types of contractor decision-making are built, together with a net-present price version of newbuilding funding and stacking judgements, and marketplace capitalization versions are derived. Jackup development shipyards and methods are reviewed besides estimates of work, gear, and fabric fee in U.S. development. Derivation of newbuild and substitute price services completes the treatise.
The entire and authoritative assurance of The Offshore Drilling and Rig building marketplace within the Gulf of Mexico makes it a great reference for engineers, execs, coverage analysts, govt regulators, lecturers and different readers eager to research extra approximately this crucial and interesting industry.
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Extra info for The Offshore Drilling Industry and Rig Construction in the Gulf of Mexico
16). Top drives increase trip efficiency and drill speed, improve well control, allow for back reaming and improve the safety of the work environment. All sixth generation semis are dynamically positioned and are more mobile than their predecessors and capable of speeds up to 8 knots. New designs frequently have two fully functional derricks and may incorporate a multi-purpose drilling tower instead of a conventional derrick. 5 Upgrading MODUs are frequently upgraded after being in service for a decade or more.
Mobile offshore drilling units are owned and operated in the contract drilling services market, supplied by the newbuild and secondhand markets, maintained and enhanced in the upgrade market, and complete their lifecycle in the scrap market. The purpose of this chapter is to describe the players, prices, activity and cash flows in each of the five offshore rig markets circa 2010–2011. Contract drilling and newbuilding are large transparent markets and activity is closely followed throughout the industry.
A semisubmersible that is upgraded to drill in deeper water would be classified either as an upgraded or as an “equivalent” higher generation unit. For example, if a second generation rig was upgraded to drill in 3,500 ft water depth, with mud pump capacity 3 Â 1,600 hp, variable displacement load of 4,300 tons, top drive and automatic pipe handling, the rig would be classified as a fourth generation unit. 20 1 Mobile Offshore Drilling Units Fig. 1 Drillships Early Drillships The first drillships were built in the late 1950s and 1960s and were structurally and functionally diverse.
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