Press Esc to close



For full content view: Log in Now!

  • Deepwater needs spur most advances in offshore rig designs

    J. Greenberg

    Innovation in any industry should result in being able to do something more efficiently, less costly, with increased performance, or, ideally, all three. In the offshore industry, as operators wade into ever-increasing water depths accompanied by ever-increasing costs, drilling contractors, rig designers and equipment manufacturers assist in that effort by developing bigger, or sometimes smaller, but efficient equipment for deep and ultra-deepwater regions. Most of the innovation of making rigs and equipment better is aimed at the floating rig market, although one company has designed a jackup that is rated to drill in nearly 600 ft of water in North Sea conditions. Another company with deepwater drillship designs has a concept for a rotating cantilever for jackup rigs.

This area of the site is restricted. In order to gain access, please either Log In, or subscribe to World Oil.

Two options are available to you for creating an account.

1. Get a Free Trial Subscription to World Oil Magazine and gain immediate access to select content on World Oil Online.

Start a Free Trial Subscription and gain immediate access to the complete current issue of World Oil Magazine. Plus, you’ll receive 3 upcoming issues of World Oil Magazine in print or digital format.* You also receive access to the Energy Events Calendar, Industry Statistics and WO Wire’s news and industry coverage.

Free Trial

2. Purchase a subscription to World Oil magazine and gain immediate and complete access to World Oil Online. As a Total Access subscriber you will have access to all areas of the site available to registered users and free subscribers as well as having access to such premium content areas as:

  • The Archives section containing over ten years of complete magazine archives,
  • The WO DataHub's engineering tables and directories,
  • The World Oil annual forecasts, including past predictions,
  • Select World Oil technical handbooks,
  • And much, much more!


Physical copies of this content may be available for purchase. Visit the Reprints & Back Issues section.

If you are already a paid subscriber and do not have access, please email



Engineering Data Tables

World Oil's specialized upstream Engineering Data Tables featuring the Drill Bit Classifier, Tubing Tables and more. Get Total Access today.


2013 Fracturing Technology

2013 Fracturing Technology