Would you like to start a free subscription?
Remember me | Forgot password
For full content view: Log in Now!
When the world’s two largest semisubmersible rigs, Aker H6 design, come in to operation in 2008, they will be equipped with the biggest mud pumps ever installed on one rig. The pumps are of triplex-design, and each has a 2,000 hp rating. Four pumps will be installed on each rig, giving a full pumping capacity of 8,000 hp.
The pump package has a total weight of 200 t per rig and the height is four meters. They will be speed-controlled by frequency converters via specially-designed electric motors from Schorch in Germany. These EExe motors are watercooled, double shafted and have a special arrangement for insulating the motor bearings to avoid current damage from the PWM-type inverters.
According to Hallvard Slettevoll, director of Schorch Norge, Schorch now makes electric motors as large as 25 MW and up to 15 kV in voltage, and in the EExd motor up to more than 10 MW.
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.