Press Esc to close



For full content view: Log in Now!

  • Downhole desander prevents ESP damage in high-watercut well

    S. Coffee and M. Briffett

    A field test in Canada demonstrated the effectiveness of a downhole desander to protect Electric Submersible Pumps (ESPs) from failure caused by the production of formation sand. An abrasive environment can cause radial wear of the pump bearings leading to vibration, which often results in equalizer and motor failure. Erosion of diffusers and impellers also reduces the efficiency of the pump, resulting in less than optimal production. Renaissance Energy tested the desander as part of its efforts to reduce operating costs, 24% of which it attributed to well workovers and related servicing costs. High-volume lift systems and sand production were the dominant factors contributing to these high costs. BACKGROUND Renaissance, which was purchased by Husky Energy after this study, identified its Cantuar Unit in southwestern Saskatchewan as one of its critical areas for cost reduction. In this unit, the producing reservoir is fine- to medium-grained quartz arenite...

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!


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



Engineering Data Tables

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


2013 Fracturing Technology

2013 Fracturing Technology