Remember me | Forgot password
For full content view: Log in Now!
Several recent failures of centralizers run through casing exits have resulted in significant lost time associated with fishing and milling lost pieces of centralizers, to place the wells into proper service. After three such failures, the requirement to study the passage of a centralized liner through a casing exit became essential. Torque and drag modeling provided the down and side force estimates exerted on the liner and centralizer as they passed through a casing exit. A test fixture was utilized to simulate liners being run through a casing exit. Several potential centralizer candidates were tested, using the loads estimated from modeling.
This article discusses the problems noted in the installation prior to testing, details the modeling used to determine loads being exerted on the centralizer at the window, shows results of the yard tests conducted on several commonly utilized industry centralizers, and makes recommendations.
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.
Noordwijk - June 5-7
San Antonio, TX - June 6-6
London - June 10-13
All material subject to strictly enforced copyright laws.
© 2013 World Oil. © 2013 Gulf Publishing Company.