Anter, E., Sayed, G., Abdou, M., Abdel-Rahman, N., Ahmed, H., Negm, N. (2020). Preparation and evaluation of nonionic polyurethane polymers in improving the rheological properties and filtrate loss control of water base muds. test, 63(11), 4273-4283. doi: 10.21608/ejchem.2020.25588.2499
El-Sayed Anter; Galal H. Sayed; Mahmoud I. Abdou; Nasser R. Abdel-Rahman; Hany E. Ahmed; Nabel A. Negm. "Preparation and evaluation of nonionic polyurethane polymers in improving the rheological properties and filtrate loss control of water base muds". test, 63, 11, 2020, 4273-4283. doi: 10.21608/ejchem.2020.25588.2499
Anter, E., Sayed, G., Abdou, M., Abdel-Rahman, N., Ahmed, H., Negm, N. (2020). 'Preparation and evaluation of nonionic polyurethane polymers in improving the rheological properties and filtrate loss control of water base muds', test, 63(11), pp. 4273-4283. doi: 10.21608/ejchem.2020.25588.2499
Anter, E., Sayed, G., Abdou, M., Abdel-Rahman, N., Ahmed, H., Negm, N. Preparation and evaluation of nonionic polyurethane polymers in improving the rheological properties and filtrate loss control of water base muds. test, 2020; 63(11): 4273-4283. doi: 10.21608/ejchem.2020.25588.2499

Preparation and evaluation of nonionic polyurethane polymers in improving the rheological properties and filtrate loss control of water base muds

Egyptian Journal of Chemistry
Article 12, Volume 63, Issue 11, November 2020, Pages 4273-4283    PDF (545.94 K)
Document Type: Original Article
DOI: 10.21608/ejchem.2020.25588.2499
Authors
El-Sayed Anter1; Galal H. Sayed1; Mahmoud I. Abdou2; Nasser R. Abdel-Rahman2; Hany E. Ahmed2; Nabel A. Negm* 2, 3
1Chemistry Department, Faculty of Science, Ain Shams University, Cairo, Egypt.
2Egyptian Petroleum Research Institute, Nasr city, Cairo, Egypt.
3Egypt Nanotechnology Center, Cairo University, El Sheikh Zayed, Egypt.
Abstract
Polyurethanes are special nonionic polymers which had a wide range of applications nowadays. This work aims to produce 
different nonionic polyurethanes by the reaction of polyethylene glycols with different molecular weights (4000, 6000, 
10.000, and 20.000 g/mole) and toluene diisocyanate. The obtained polyurethanes' structures were determined using 
molecular weight measurements, Fourier transform infrared spectroscopy (FTIR), and proton nuclear magnetic resonance (1H￾NMR). The effect of the synthesized polyurethanes on the rheological properties of two drilling fluids was studied. The 
polyurethane polymers were influenced by the filtrate loss of the drilling fluids in comparison to the blank. The results 
showed that the synthesized polyurethane nonionic derivatives effectively enhanced the shear-thinning non-newtonian drilling 
fluids following the modified power Law Model (Herschel Bulky Model). The other rheological properties of the formulated 
drilling water-base muds, including apparent viscosity (AV), plastic viscosity (PV), yield point (YP), and gel strength were 
improved considerably compared to the commercial formulation.
Keywords
Drilling fluids; rheology; filtrate loss; yield point; plastic viscosity; polyurethane
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