Technical Library

05/05/2006

Get back on planned drilling program and finish the well with an adequate hole size to evaluate potential production zones at TD.

01/03/2009

Install a 7-5/8 x 9-5/8 in. SET Openhole Liner (OHL) to isolate higher pressure zones so that mud weight could be reduced to combat lost circulation.

12/29/2009

A major operator was sidetracking out of an existing well to a nearby reservoir.The first attempt to sidetrack utilizing a conventional casing design failed to reach the target depth and damaged the 13-3/8 in. casing.

The casing design for a...

08/01/2011

Challenge: Redevelop an established Gulf of Mexico deepwater field by accessing additional reserves.

03/13/2012
An operator drilling a sub-salt exploration deepwater well in Gulf of Mexico, experienced an unstable wellbore at the base of the salt; which resulted in setting the 9-7/8 in. liner 3,400 ft higher than originally planned.
In exploratory wells, maintaining hole size is critical due...
03/03/2005

Preserve hole size by implementing a contingency plan that included two SET® solid expandable liners and one conventional API liner run below the well’s planned 11-7/8 in. drilling liner.

08/01/2016

In this project, the planned 13-3/8 in. conventional casing setting depth could not be reached due to a narrower than planned drilling window. Such an event, along with the uncertainties in deeper sections of the exploratory well, compromised reaching the geological targets with the mandatory...