Press Esc to close

WorldOil

CONTENT PREVIEW

For full content view: Log in Now!

  • Rig Floor Equipment: AC VFD power system enables efficient rig power distribution


    Over the last 15 years, Variable Frequency Drives (VFD) have helped operators optimize power distribution for drilling and production equipment. The majority of offshore newbuilds are being constructed using the efficient AC VFDs because they have been proven to increase drilling effectiveness and rig safety, while reducing maintenance and expenditures. One global supplier of custom-engineered power delivery solutions to the traditional and alternative energy industries, American Electric Technologies, Inc. (AETI), is helping operators upgrade mature or traditional offshore rig systems with AC VFD power systems. For the past three decades, drilling equipment has been DC driven by Silicone Controlled Rectifier (SCR) systems, which converts AC to DC and enables motors to run at variable speeds. However, SCR voltage from DC systems has limited output. DC systems do not allow operators to optimize the equipment’s motor speed, which is directly proportional to SCR voltage output.

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.

Free Trial


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:

  • The Archives section containing over ten years of complete magazine archives,
  • The WO DataHub's engineering tables and directories,
  • The World Oil annual forecasts, including past predictions,
  • Select World Oil technical handbooks,
  • And much, much more!

Subscribe


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.

WO DATA HUB

EngineeringTablesIcon-Large

Engineering Data Tables

World Oil's specialized upstream Engineering Data Tables featuring the Drill Bit Classifier, Tubing Tables and more. Get Total Access today.

WO SUPPLEMENTS

2013 Fracturing Technology

2013 Fracturing Technology

ENERGY EVENTS