ITPN   24979
INSTITUTO DE TECNOLOGIA EN POLIMEROS Y NANOTECNOLOGIA
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Oil Well Cement Modified with Bacterial Nanocellulose
Autor/es:
CERRUTTI, P; ZAPATA FERRERO, I; MARTIN, CM; VAZQUEZ, A
Reunión:
Conferencia; International Conference of Polymer in Concrete; 2018
Resumen:
Ignacio Zapata Ferrero2, Patricia Cerutti1,2, Analía Vázquez1,2 y Teresa M. Pique1During oilwell completion, cement slurries are pumped into the annular area be-tween the casing and the borehole. These are used to contain and prevent corro-sion and erosion of the casing, to hydraulically isolate the various formations through the borehole, avoiding the filtration of pollutants in aquifers, loss of productivity, etc. Oilwell cementing is a complex task. Incorrect isolation or loss of circulation causes damages, both economically and environmentally. Cement slurry is a mixture of cement, water, and additives. In particular, high-performance materials are used for oilwells. It is further characterized by having a high w/c ratio and a relatively low viscosity. The aim of this work is to optimize the performance of the slurries with the addition of bacterial nanocellulose (BNC). In order to study the effect of BNC in cement slurries, its properties were studied in fresh and hardened state. In particular, density, fluidity, hydration degree, and mechanical properties were evaluated. The results confirm the positive effect of the addition of BNC to the slurry, presenting low percentage of free liquid and an increase of the compressive strength.