Project in the Dutch sector
Wellcem successfully executed its first project in the Dutch sector of North Sea. The project was to reestablishing the integrity of an oil producing well.
The project was to reestablishing the integrity of an oil producing well.
The challenge was sustained pressure on B-annulus due to its communication with reservoir through micro channel in cement behind the casing.
A high density ThermaSet formulation capable of settling down through the annular fluid due to gravity was pumped into B-annulus. After wait on settling, pressure was applied on B-annulus to squeeze sufficient volume of the pill into the micro channel and permanently plug the source of sustained casing pressure.