Would you like to start a free subscription?
Remember me | Forgot password
For full content view: Log in Now!
Drill bit costs, although not insignificant, are a small part of total well expense. The largest factor, by far, in escalating well drilling costs is the number of days spent. The newer drill bit designs all have the same ultimate goals—durability, efficiency, speed and delivery of a high-quality wellbore. Days saved equal money saved.
The keyword in modern drilling is control. As “unconventional” drilling becomes conventional, shale oil and gas reservoirs demand greater, more subtle control. With shale, PDC is the bit of choice, and while roller-cone technology is still valued for faster rates of penetration (ROP) and lower cost-per-foot, fixed-cutter bits now fulfill around 80% of hydrocarbon drilling. Hybrid drill bits, which have characteristics of both types, are finding a larger niche.
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.
New Delhi - January 11-14
Muscat - January 26-29
Bogota - January 28-29
All material subject to strictly enforced copyright laws.
© 2014 World Oil. © 2014 Gulf Publishing Company.