Press Esc to close

WorldOil

CONTENT PREVIEW

For full content view: Log in Now!

  • Casing drilling proves successful in South Texas


    K. Fontenot, T. M. Warren and B. Houtchens

    Conoco has used Tesco’s Casing Drilling* system to drill 17 development wells in Lobo field of South Texas since mid-2001. The intermediate and production sections of Lobo wells often require time for hole conditioning, lost circulation, gas influxes, stuck pipe and running casing. The system has significantly reduced these downhole problems by casing the well as it is drilled. This is accomplished by using casing as the drill pipe. Once the casing point is reached, the casing is cemented in place without tripping pipe, unless the production casing is partially tripped for openhole logs. Negligible time has been required for hole conditioning and lost circulation. Gas influx has been less of a problem while drilling with casing than when drilling conventionally. Performance on the first 10 casing drilled wells shows that the technology provides time savings of 8% to 33%.

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

Upcoming Events