Technical Library

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...

05/05/2009

To completely isolate the main pay zone (MPZ) from lower residual oil zone (ROZ) with options to set conventional liner in future if needed for conformance work. Installation of 5-1/2” x 7”, 23 lb ESeal Liners to isolate the upper perforations in each well would enable injection through newly-...

02/01/2013

A large independent Operator discovered several leaks and a parted section in the 7 in. production casing from 2,000 ft. to 500 ft. In order to fracture the well, casing integrity had to be restored to handle over 6,000 psi surface fracture pressure to ensure the well could become a viable asset...

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...
11/01/2013

A major Alaskan Operator’s 22-year-old well had decreased production levels, had casing integrity issues, and was now producing too much water. An economical yet effective solution was needed that would not only permanently isolate the water-producing perforations in the production liner but...

05/01/2013

A major operator in the Middle East encountered significant corrosion in 7" base casing on one of its injection wells in an important onshore oil field. The corrosion of the pipe presented a safety risk, as well as, a commercial concern that well integrity would be jeopardized and reduce...

10/15/2014

Enventure’s ESeal™ casing patch solutions provide a robust, permanent alternative to unreliable cement squeezes while maximizing ID and maintain the largest production conduit possible. ESeal casing patches are effective solutions for addressing multiple casing integrity issues.

11/06/2014

Enventure's ESeal products are the first choice of operators who need a permanent, inexpensive solution to restore well integrity.

02/14/2018

CNR International U.K Ltd. required a system to restore well integrity on a well in their Tiffany Field. A suspected non gas tight connection around 600ft MD within the 10-¾” production casing required to be repaired. Future plans for the well include drilling a sidetrack from the 7” casing and...