Technical Library

Objective

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...
04/11/2014

In the Utica Shale, an Operator drilled three wells and experienced loss zones and formation integrity issues.

07/15/2013

While drilling an exploration well, an Operator encountered a narrow pore pressure/fracture gradient window that required using more casing strings than planned.

04/16/2013

Isolate a lower pressured oil production zone from other nearby higher pressured zones to mitigate cross-flow between the different reservoirs.

11/04/2011

The ESeal Liner provided the maximum flow area for injector fluids resulting in greater injection volumes and rates due to less friction pressure loss during injection.  The standard conventional scab liner is the 5 in. liner which provides a 4.481 in. ID., while the 5½ x 7 in. ESeal liner...

04/11/2007

A Corrosion across the entire 1,100 ft. of 7 in. casing installed in a natural gas liquids (NGL) storage cavern risked NGL leakage into the surrounding formation.

12/01/2009

In the first stage of the fracturing program, the uppermost fracture sleeve failed - leaving the economic viability of the wells at risk.

02/09/2014

A major operator in the Eagle Ford began a well recovery program to re-activate over 30 wells that stopped producing due to compromised well integrity (leaks).

09/30/2013

An Operator, in the Ardmore Basin, was unable to put a well onto first production due to casing damage at a 5½” to 4½” casing crossover.

11/21/2013

An Operator, in the Permian, discovered they did not obtain cement coverage along the entire length of the lateral after cementing their production casing.

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