Use of micro-electro-mechanical systems (MEMS) in well treatments

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, wherein the wellbore composition is circulated in the wellbore and a fluid flow profile is determined over at least a portion of the length of the wellbore.

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 flow in of the wellbore composition, wherein the fluid flow property or characteristic is an actual time of arrival of at least a portion of the wellbore composition comprising the MEMS sensors and wherein the actual time of arrival is compared to an expected time of arrival to determine a condition of the wellbore.

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 sealant composition from data provided by the MEMS sensors during the pumping of the spacer fluid and sealant composition into the wellbore.