Remember me | Forgot password
For full content view: Log in Now!
Hard-face claddings are used for banding drill shafts that rotate against well casings while lubricated by drilling mud. To maximize component life, the tribosystem, defined as materials in sliding contract with lubricants or films in the interface, should have the lowest total system wear, and the lowest friction possible in order to minimize drilling power requirements. Blocks representing a variety of hard-face claddings were slid against rotating rings of AISI 4140 casing material and lubricated by simulated drilling mud that consisted of a slurry of silica sand, clay and water. Currently used alloys and several candidate developmental compositions were used as cladding specimens.
The results showed an excellent correlation between the friction coefficient and the wear, by weight loss, of both cladding and casing alloys. There was also a good direct correlation between wear of the cladding and wear of the casing. Claddings with finer grain sizes and finer, more uniformly distributed hard carbides had higher hardness...
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.
Istanbul - June 19-20
St. John's - June 19-20
Dana Point, CA - June 23-25
All material subject to strictly enforced copyright laws.
© 2013 World Oil. © 2013 Gulf Publishing Company.