Press Esc to close



For full content view: Log in Now!

  • Careful BHA selection, adaptive practices help drill difficult salt

    S. Okewunmi, M. Oesterberg, G. Heisig and J. Hood

    A recent well in the Green Canyon area of the deepwater GOM required drilling through more than 15,000 ft of salt formations. Offset wells with BHAs, including hole opening devices, were challenged by excessive vibrations that resulted in drillstring twist-offs and fishing. In addition, episodes of low ROP were observed. This article describes the well planning, BHA selection and lessons learned while drilling. Green Canyon area is south-southwest of New Orleans, Fig. 1. Several deepwater discoveries have been found, with appraisal, development and more exploratory wells underway. The deepwater prospect blocks in Green Canyon area hold anticlinal structures with trapped salt formations, some clean and others with inclusions. Salt depth ranges from 10,000-ft to 17,000-ft TVD, depending on sedimentation and formation dip. The area has produced significant quantities of oil and gas from Miocene and Oligocene sands. The industry’s move into deeper waters has provided new opportunities for petroleum production . . .

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


Upcoming Events