Press Esc to close



For full content view: Log in Now!

  • Developing a business case for subsea light well intervention

    M. Hartley and T. Grose

    BP operates three oilfields in the West of Shetland (WOS) fields of the northeast Atlantic. To date, any well intervention work has been undertaken by semisubmersibles. However, the WOS fields require better access to intervention capability, so BP has embarked on a plan to improve Light Well Intervention (LWI) access. Although LWI had not been attempted in the WOS, experiences elsewhere on the UK Continental Shelf and Norwegian Continental Shelf indicated that LWI was feasible and attractive for the harsh environment of the WOS. This article explains the process that BP underwent to identify and quantify value-adding intervention options, and explains some of the technical challenges that must be addressed to execute a subsea LWI campaign. Other intervention technologies being developed to address the global subsea well stock are also discussed.

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