Would you like to start a free subscription?
Remember me | Forgot password
For full content view: Log in Now!
Late last spring, Nexen Petroleum UK Ltd. faced a drilling challenge in the J13z Marmion well, drilled on the Scott platform in the North Sea about 117 mi northeast of Aberdeen, Scotland, Fig. 1. The operator’s drilling program had placed a 13 3/8-in. casing shoe in Well J13z at a depth of 5,929 ft with an angle of 51°. However to reach total depth, the operator needed to drill the 12¼-in. section to a planned depth near 20,000 ft with a final inclination of 75°. Extended-reach Well J36y, a sidetrack of Well J13z, was the longest drilled well from the Scott platform to date. The initial 12¼-in. section was abandoned due to incurable losses combined with troublesome shales around the top of the Andrew formation at 6,800 ft TVD. The required increase in angle and the drilling distance for the 12¼-in. hole presented the operator with considerable challenges.
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
The Woodlands, TX - November 17-17
Houston, TX - November 18-18
All material subject to strictly enforced copyright laws.
© 2014 World Oil. © 2014 Gulf Publishing Company.