INTEC   05402
INSTITUTO DE DESARROLLO TECNOLOGICO PARA LA INDUSTRIA QUIMICA
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Lignin containing cellulose nanofibrils (L-CNF) as additive in drilling fluids for shale gas extraction
Autor/es:
MARÍA SOLEDAD PERESÍN; YURANY ANDREA VILLADA VILLADA; DIANA ALEJANDRA ESTENOZ; MARIA CELESTE IGLESIAS; NATALIA CASIS
Lugar:
Auburn
Reunión:
Workshop; Workshop Auburn University; 2018
Institución organizadora:
Auburn University
Resumen:
Over the years, the use of cellulose nanofibrils (CNF) as an additive to improve materials properties has been increased widely, due to a successful combination among the characteristics conferred by the nanoscale and the intrinsic properties of the cellulose1. Nowadays, the main source for CNF is bleached cellulose pulp, typically obtained by removal of lignin and hemicelluloses using chemical treatments. The removal of those cell wall components has proven to improve the visco-elastic properties of the fibers. However, the presence of residual lignin in raw materials confer different properties to CNF that are of potential interest in several novel applications, such as increased hydrophobicity and distinct rheological behavior. Additionally, using unbleached cellulose pulp to produce lignin-containing cellulose nanofibrils (L-CNF) is more environmentally friendly, and allows to obtain higher production yields2 while reducing costs, due to the lower energy consumption during the manufacture process and the avoidance of bleaching steps.Drilling fluids are commonly used in oil and gas drilling operations. The performance of the drilling operations is directly related with the properties of these fluids3. During the last years, the use of cellulose nanoparticles as an additive in drilling fluids as rheological modifier and fluid loss reducer has been reported, particularly focused on the utilization of cellulose nanocrystals (CNC) and fully bleached cellulose nanofibrils4,5.In this work, we investigate the use of L-CNF as a component of drilling fluids. We had demonstrated that the utilization of L-CNF as replacement of xanthan gum (XGD), could improve the filtering properties, and did not affect the rheological properties. Also, the interactions among the principal components of the fluids were monitored through Quartz Crystal Microbalance with Dissipation monitoring (QCM-D). According to these results, it is possible to replace XGD with L-CNF in drilling fluids.