Would you like to start a free subscription?
Remember me | Forgot password
For full content view: Log in Now!
A unique combination of underbalanced drilling and drilling with casing has proved to be successful in drilling wells that feature stratified pressure regimes in mature fields, including CO2.
The combination of two innovative technologies, Underbalanced Drilling (UBD) and rotary drilling with casing, has proved to be a viable solution to successfully drilling a well with varying stratified pressure regimes, including CO2, in a mature field. A project to prove this innovation had the following objectives:
• Minimize drilling-induced formation damage to maximize injection capabilities
• Minimize induced losses, thus differential sticking
• Improve drilling efficiencies by reducing flat time caused, NPT, well conditioning, drillstring tripping and casing running operations.
The case study described in this article shows how a gas injection well overcame the challenges of conventional drilling approaches that were potentially costly and challenging from a well control perspective, due to lost circulation and the resultant formation influxes.
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.
Wichita Falls, TX - April 22-23
Bucharest - April 28-30
Houston, TX - May 5-8
All material subject to strictly enforced copyright laws.
© 2014 World Oil. © 2014 Gulf Publishing Company.