The Operator on the Norwegian Sector of the North Sea had a challenge with gas migration in cement behind casing. Among other options, the customer considered and selected ThermaSet® to solve their challenge.
Below, you get more insight into this case. You may also download your free copy of the case study, which also includes details about how Wellcem implemented the solution and most importantly – the results achieved for the operator company.
The well was suffering from Sustained Casing Pressure (SCP) in B-annulus (9 5/8” – 13 3/8”). Gas from reservoir migrated through the B-annulus towards the surface. Potential leak pathways were microchannels in cement behind 9 5/8” casing, and/or micro-annulus at cement & casing interface.
The customers’ options
After several attempts to solve the problems with cement and being on location much longer than planned. It was decided to use a Wellcem Resin System to squeeze and isolate the gas channels. The low visicosity of the resin allowed in to get into the micro channels and seal of the movement of gas to the surface.
The customers’ options
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