Technical Library

Objective

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...

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...
09/01/2013
In the Marcellus Shale, fracturing rates and pressures can be substantial, but there are other problems also associated with completing these wells, which can promote casing failure or compromise the pressureintegrity of a well. A...
10/15/2014

SET technology is the result of a cold-working process that permanently deforms the pipe without any additional heat. The procedure inherent to expanding tubulars takes the steel beyond its elastic limit into the plastic region of the stress-strain curve, while remaining safely below ultimate...

08/27/2018

An Operator in the Norwegian North Sea encountered a restriction 118m (387 ft.) off bottom while running a 10-¾” MLT liner. This was the third attempt to pass the trouble spot. The decision was made to cement the MLT liner in place and find an alternative way to cover up the troublesome Balder...

09/24/2009

Enable offshore exploratory well to reach total depth (TD) with optimal hole size after base casing was set higher than expected.