May 4, 2019
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 […]
January 10, 2020
Introduction For annular gas migration to occur (red zone) three conditions must be met as shown in the diagram above. The hydrostatic pressure (PH) in the […]
September 17, 2019
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
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
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
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 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
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
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 […]
September 17, 2019
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 […]
June 28, 2018
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 […]