[HTML][HTML] Plug & abandonment of offshore wells: Ensuring long-term well integrity and cost-efficiency

T Vrålstad, A Saasen, E Fjær, T Øia, JD Ytrehus… - Journal of Petroleum …, 2019 - Elsevier
There is an upcoming" P&A wave" of wells that need to be permanently plugged and
abandoned, especially in mature, offshore areas such as the North Sea and Gulf of Mexico …

Geopolymers as an alternative for oil well cementing applications: A review of advantages and concerns

M Khalifeh, A Saasen, H Hodne… - Journal of …, 2018 - asmedigitalcollection.asme.org
Geopolymers, being inorganic polymers created from rock sources, were evaluated as an
alternative to Portland cement. To evaluate their usability, some properties of a selected …

Controlling the hydration rate of alkali-activated slag by the slow release of NaOH

S Guo, Y Li, T Chen, D Zheng, J Du, Y Bu… - Geoenergy Science and …, 2023 - Elsevier
The reaction of alkali-activated slag is very fast and challenging to adjust with the common
retarder used in Portland cement. Thus, achieving control of the hydration rate of alkali …

Fly ash Class C based geopolymer for oil well cementing

M Ahdaya, A Imqam - Journal of Petroleum Science and Engineering, 2019 - Elsevier
For many years Portland cement has been used in oil well cementing. Even though Portland
cement has been used for many years, it has several drawbacks, including operational …

[HTML][HTML] Impact of drilling fluid contamination on performance of rock-based geopolymers

E Eid, H Tranggono, M Khalifeh, S Salehi, A Saasen - SPE Journal, 2021 - onepetro.org
Our objective is to present selected rheological and mechanical properties of rock-based
geopolymers contaminated with different concentrations of drilling fluids. The possible flash …

Class C fly ash-based alkali activated cement as a potential alternative cement for CO2 storage applications

P Jani, A Imqam - Journal of Petroleum Science and Engineering, 2021 - Elsevier
Long-term storage of carbon dioxide (CO 2) inside depleted reservoirs can help reduce the
impact of greenhouse gas emissions. Portland cement has been shown to degrade …

Investigating geopolymer cement performance in presence of water based drilling fluid

M Ahdaya, A Imqam - Journal of Petroleum Science and Engineering, 2019 - Elsevier
Oil well cementing is one of the most important steps in drilling and completion processes
and providing a full zonal isolation which is the most important features in the oil cementing …

[HTML][HTML] Hydrogen storage in depleted geological hydrocarbon reservoirs: Enhancing wellbore integrity and sustainability with geopolymer cement–Review

MM Madirisha, BD Ikotun - Journal of Energy Storage, 2024 - Elsevier
Geological hydrogen storage in depleted hydrocarbon fields is an emerging technology
aimed at mitigating climate change. This review paper delves into the geological storage of …

Recent advances and prospects on retarder application in oilwell cement: A review

PI Nwaichi, N Ridzuan, EO Nwaichi… - Geoenergy Science and …, 2024 - Elsevier
Retarders are used to prevent hydration of oilwell cement by prolonging thickening and
setting time for cement slurry application under deep and high-temperature conditions …

Laboratory evaluation of rock-based geopolymers for zonal isolation and permanent P&A applications

M Khalifeh, A Saasen, H Hodne, HB Motra - Journal of Petroleum Science …, 2019 - Elsevier
In this work, we have studied selected rheological properties and mechanical properties of
rock-based geopolymers. The geopolymers are suggested for zonal isolation and …