Would you like to start a free subscription?
Remember me | Forgot password
For full content view: Log in Now!
A significant performance gap exists between Water-Based drilling Muds (WBM) and standard Invert Emulsion Muds (IEM). WBMs fall behind in shale inhibition, wellbore stability, ROP, and fluid stability, making oil- and synthetic-based drilling muds the technical choice for drilling demanding wells. However, more rigid environmental restrictions, coupled deepwater drilling challenges, have encouraged further WBM development.
A number of extensive R&D investigations into shale inhibition, cuttings accretion, lubricity, cuttings encapsulation and ROP with WBM have resulted in a new WBM that approaches the flexibility and performance of invert emulsion muds. The high-performance WBM overcomes the shortfalls of previous WBMs by focusing on drilling performance as well as shale inhibition.
IEMs have always been the choice when drilling demanding wells that require highly inhibitive mud. They are recognized as the most efficient drilling muds, because there is no contact between the drilled formations and water. Additional IEM advantages include:...
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.
Aberdeen - December 2-3
Calgary - December 8-8
Mangaf - December 8-10
All material subject to strictly enforced copyright laws.
© 2014 World Oil. © 2014 Gulf Publishing Company.