Would you like to start a free subscription?
Remember me | Forgot password
For full content view: Log in Now!
Drilling offshore in deep water poses unique challenges over drilling on land or from a jackup fixed to the seafloor in relatively shallow water. Whereas fixed platforms allow for little to no vertical movement of equipment, in deep water floating drilling and production structures must be able to move, while the drillstring remains fixed and in tension. These floating systems are differentiated in two ways: 1) wellheads are attached to the seafloor instead of the platform and 2) vertical movement, heave and rotation, occurs.
When an offshore drilling rig heaves or rotates, its position shifts relative to the drill pipe. A diverter attached to the vessel's drillfloor moves up and down around the drill pipe with the rig, possibly 30 ft or more. In the past, if a floating rig experienced a blowout, the diverter would be closed around the pipe and return lines to send gas to the atmosphere.
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.
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:
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 CustomerService@worldoil.com.
World Oil's specialized upstream Engineering Data Tables featuring the Drill Bit Classifier, Tubing Tables and more. Get Total Access today.
Houston, TX - November 4-5
All material subject to strictly enforced copyright laws.
© 2014 World Oil. © 2014 Gulf Publishing Company.