Patent

May 4, 2019

Thermoset resins: the importance of thermal properties for zonal isolation

It is important to consider the thermal properties of thermoset resins when applying them to zonal isolation applications.  The key resin properties are the heat of […]
September 17, 2019

Geopolymer Patent Publications

Discussion The graph above shows the number of published geopolymer related patent applications and granted patents per year for the last 30 years.   The methodology I […]
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.  […]
September 4, 2018
Chemical shrinkage measurement

Chemical shrinkage of hydraulic binders

Chemical shrinkage during hydration of Portland cement This is the second article in the series linking the chemical shrinkage of hydrating Portland cement systems to well […]
July 17, 2018
Hydration Reactions

Cement chemistry and hydration reactions

Shrinkage and expansion of Portland cement systems The chemical shrinkage of hydrating Portland cement systems, the resulting bulk volume changes and the potential consequences for hydraulic […]
June 28, 2018
Patent filings in France 2017 from INPI

French patent filings 2017

INPI (The French National Industrial Property Institute) has published a report, detailing the top 50 companies/institutions with the most patent applications published in 2017.  The report […]
June 28, 2018
Patent filings in France 2017 from INPI

French patent filings 2017

INPI (The French National Industrial Property Institute) has published a report, detailing the top 50 companies/institutions with the most patent applications published in 2017.  The report […]