TY - GEN
T1 - Development of new green cement for oil wells
AU - Valliappan, Alagu Karthik
AU - Suppiah, Raja Rajeswary
AU - Irawan, Sonny
AU - Bayuaji, Ridho
N1 - Publisher Copyright:
© 2016 Trans Tech Publications, Switzerland.
PY - 2016
Y1 - 2016
N2 - For many years, Ordinary Portland Cement (OPC) is used in oil well cementing operation. But the OPC gets degraded in the acidic environment because of having poor mechanical characteristics. A new technology called geopolymeric cement system is developed from the secondary byproducts of the industry to replace the conventional cement slurry in oil well cementing operation. This study focus on the preparation of cement slurry with new formulation using fly ash and alkali binders at two sodium hydroxide treatment methods with various concentrations of NaOH solution and analyzing the prepared cement slurry for compressive strength, defiance to acid and fluid loss amount. Different cement slurry compositions made of 70:30 fly ash to alkaline activator ratios with 10, 12, 14 Molar NaOH solution with two sodium hydroxide treatment methods of direct addition and mixing after one day soaking of NaOH were prepared and cured for 24 hours at a temperature of 80°C and pressure 3000 psi. The obtained cement specimens were tested for compressive strength, resistance towards acid and density. Then based on the results, geopolymer can be considered as alternative for Class G cement in oil well cementing operation due to its high compressive strength and high acid resistance.
AB - For many years, Ordinary Portland Cement (OPC) is used in oil well cementing operation. But the OPC gets degraded in the acidic environment because of having poor mechanical characteristics. A new technology called geopolymeric cement system is developed from the secondary byproducts of the industry to replace the conventional cement slurry in oil well cementing operation. This study focus on the preparation of cement slurry with new formulation using fly ash and alkali binders at two sodium hydroxide treatment methods with various concentrations of NaOH solution and analyzing the prepared cement slurry for compressive strength, defiance to acid and fluid loss amount. Different cement slurry compositions made of 70:30 fly ash to alkaline activator ratios with 10, 12, 14 Molar NaOH solution with two sodium hydroxide treatment methods of direct addition and mixing after one day soaking of NaOH were prepared and cured for 24 hours at a temperature of 80°C and pressure 3000 psi. The obtained cement specimens were tested for compressive strength, resistance towards acid and density. Then based on the results, geopolymer can be considered as alternative for Class G cement in oil well cementing operation due to its high compressive strength and high acid resistance.
KW - Class G cement
KW - Fly-ash
KW - Geopolymer cement
KW - Oil well cement
KW - Ordinary portland cement
UR - http://www.scopus.com/inward/record.url?scp=84958068717&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/MSF.841.148
DO - 10.4028/www.scientific.net/MSF.841.148
M3 - Conference contribution
AN - SCOPUS:84958068717
SN - 9783038355441
T3 - Materials Science Forum
SP - 148
EP - 156
BT - Properties and Application of Geopolymers
A2 - Ekaputri, Januarti Jaya
A2 - Ekaputri, Januarti Jaya
A2 - Antoni, Antoni
PB - Trans Tech Publications Ltd
T2 - 2nd Malaysia-Indonesia Geopolymer Symposium, 2015
Y2 - 25 October 2015 through 27 October 2015
ER -