Remember me | Forgot password
For full content view: Log in Now!
Roller cone and PDC bit design has progressed from its fundamental foundation laid nearly fifty years ago. Factors such as depth of cut, cone offset angle, cone geometry, journal angle, tooth/insert count and spacing are still a part of this foundation. Modern design, as shown by the new products presented in this article, focus on details such as bearing configuration, bottomhole coverage and inter-insert (teeth) clearance relative to adjacent cones. Modern design focuses on modeling cone tracking as a measure of bottomhole clearance. Bit designers rely not only on bit run simulations in a particular formation, some simulate the effect of the BHA on the particular bit to get a complete picture of forces affecting bit performance. As new bits are introduced, they are also accompanied by ancillary services such as custom designing each bit to a particular application. The following new designs show that this will be the continuing trend.
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.
Orlando, FL - May 21-24
Noordwijk - June 5-7
San Antonio, TX - June 6-6
All material subject to strictly enforced copyright laws.
© 2013 World Oil. © 2013 Gulf Publishing Company.