News

April 10, 2019
Cycloaliphatic epoxy structire

Volume changes during setting of thermoset resins

Thermoset resins, such as polyester, vinyl ester and epoxy resins, are being used for specialised sealing applications in oil and gas wells.  Two advantages of these […]
November 19, 2018
Cross section with micro-annulus

Expanding agents for improved zonal isolation

The fourth article in the series linking chemical shrinkage of cement systems to well integrity and zonal isolation covers the use of expanding agents.  The articles […]
September 23, 2018
Expansion cell

Bulk volume changes of Portland cement systems

Bulk volume change of hydrating Portland cement systems The third article in the series linking chemical shrinkage of cement systems to well integrity and zonal isolation.  […]