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Potential Utilization for a Rock-Based Geopolymer in Oil Well Cementing

[+] Author Affiliations
Mahmoud Khalifeh, Arild Saasen, Helge Hodne

University of Stavanger, Stavanger, Norway

Hem Bahadur Motra

University of Kiel, Kiel, Germany

Paper No. OMAE2018-78305, pp. V008T11A037; 11 pages
doi:10.1115/OMAE2018-78305
From:
  • ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering
  • Volume 8: Polar and Arctic Sciences and Technology; Petroleum Technology
  • Madrid, Spain, June 17–22, 2018
  • Conference Sponsors: Ocean, Offshore and Arctic Engineering Division
  • ISBN: 978-0-7918-5129-6
  • Copyright © 2018 by ASME

abstract

In this work, we have studied rheological behavior and mechanical properties of selected modified rock-based geopolymer, which are suggested for zonal isolation and permanent abandonment of hydrocarbon wells. Our rheological measurements of the geopolymeric slurries shows a very small Yield Stress and a constant plastic viscosity. Even though the yield stress is small, a non-Newtonian flow behavior is distinguished. Mechanical vibration measurements showed that vibrations have surprisingly little effect on the shear stress changes. Consistency of the geopolymeric slurry was measured by utilization of atmospheric and pressurized consistometers to find the impact of pressure and temperature on pumpability. A temperature decrease of 10°C postponed the geopolymerization by 4 hours and a temperature increase by 10°C accelerated the geopolymerization by 30 minutes. Static-fluid-loss test showed only 1.6 (ml) of fluid loss after 30 minutes which is another advantage of the geopolymeric slurry. The elastic shear wave and compressional wave velocities and velocity anisotropies of the samples were tried to be determined experimentally. However, our efforts showed that geopolymeric structure of the samples requires different frequencies as it damps the high frequency signal.

Copyright © 2018 by ASME

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