Fuente: Wipo "Sensorization" A method of servicing a wellbore, comprising placing a plurality of Micro-Electro-Mechanical System (MEMS) sensors in a wellbore composition, flowing the wellbore composition in the wellbore, and determining one or more fluid flow properties or characteristics of the wellbore composition from data provided by the MEMS sensors during the flowing of the wellbore composition. A method of servicing a wellbore, comprising placing a plurality of Micro-Electro-Mechanical System (MEMS) sensors in at least a portion of a spacer fluid, a sealant composition, or both, pumping the spacer fluid followed by the sealant composition into the wellbore, and determining one or more fluid flow properties or characteristics of the spacer fluid and/or the cement composition from data provided by the MEMS sensors during the pumping of the spacer fluid and sealant composition into the wellbore.