Comparison of rheological properties of graphene / carbon nanotube hydrogenated oil based biodegradable drilling fluid

29th Symposium of Malaysian Chemical Engineers 2016

Chai, Y.H.^1 ; Yusup, S.^1 ; Chok, V.S.^2 ; Irawan, S.^3 ; Singh, J.D.B.S.^4 ; Chin, B.L.F.^5

Biomass Processing Laboratory, Center of Biomass and Biofuels Research, MOR Green Technology, Chemical Engineering Department, Universiti Teknologi PETRONAS, Seri Iskandar, Perak

32160, Malaysia^1

Chemical Engineering Department, Heriot-Watt University Malaysia, No. 1, Jalan Venna P5/2, Precinct 5, Putrajaya

62200, Malaysia^2

Petroleum Engineering Department, Universiti Teknologi PETRONAS, Seri Iskandar, Perak

32160, Malaysia^3

Graphene Nanochem Plc, Clearwater Changkat Semantan, Off Jalan Semantan, Damansara Heights, Kuala Lumpur

50490, Malaysia^4

Department of Chemical Engineering, Curtin University Sarawak Campus, CDT 250, Sarawak, Miri

98009, Malaysia^5

关键词: Experimental investigations;    Hydrogenated oil;    Nanoparticle loadings;    Newtonian behaviours;    Operating temperature;    Particle loading;    Rheological behaviour;    Rheological property;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/206/1/012042/pdf
DOI  :  10.1088/1757-899X/206/1/012042

来源: IOP

【 摘 要 】

An experimental investigation has been carried out to investigate the rheological properties of graphene / carbon nanotube hydrogenated oil based biodegradable drilling fluid at different nanoparticle loadings. The rheological behaviours of interest in this investigation are the viscosity and shear stresses of two different nanofluids respectively. The limiting parameters in this study are 25 ppm, 50 ppm and 100 ppm weight concentration at operating temperature ranging from 30°C to 50°C. Both nanofluids are subjected to shear rate ranging from 0 - 140 s-1for comparison of rheological behaviours. Both samples' viscosity reduces to base fluid's viscosity value at higher shear rate with carbon nanotube-hydrogenated oil yielding higher viscosity compared to graphene-hydrogenated oil for all nanoparticle loadings at lower shear rate. Shear stress analysis also shows similar results with carbon nanotube based samples showing higher stress between the two at all particle loadings. Both samples show Newtonian behaviour that is similar to base fluid even at higher particle loadings. Analysis revealed both nanofluids yields close to zero yield stress even with the presence of graphene or carbon nanotube particles. The significance of this study shows that addition of low nanomaterials for enhancement of drilling fluids can improve its thermophysical properties without compromising the quality of drilling fluids such as viscosity and shear stress properties.