Technical Library

04/19/2008

Isolate the trouble zone while conserving hole size by planning solid expandable technology into the well design; optimize wellbore trajectory and reduce risk in sidetrack drilling operations.

09/09/2003

For years, the reduction of tubular inside diameter (ID), or “telescoping effect,” limited the exploration and production of oil and gas. Using conventional technology, operators faced significant loss of ID in the course of the normal drilling process, during reentry and deepening of existing...

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...

01/03/2012

BP experienced losses while drilling a development well due to weak sand formation directly below the 13-3/8in. shoe. Multiple attempts were made to stem the losses - all without success.
A solution was required to isolate the weak sand formation and enable drilling to continue with higher...

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...
12/18/2009

The Operator wanted to repair the well and continue production through the 2-7/8-in. production tubing with a retrievable packer set at 11,335 ft. in the 5-1/2-in.17 lb/ft. casing.

02/01/2016

An Operator in the EagleFord Basin of South Texas was performing fishing operations in the lateral section of a well that left several damaged intervals in the casing. The Operator was forced to abandon the well until a solution could be found to restore integrity, withstand the...

02/01/2016

An Operator in the EagleFord Basin of South Texas was 15 stages in to their 37-stage frac job when they encountered damaged intervals in the casing due to over-torqued connections. The Operator was forced to abandon frac operations until a solution could be found to restore...

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