Characterization of the Smart Oilwell Cement Modified with Metakaolin

For a successful cementing operation, it is critical to determine the flow of cement slurry between the casing and formation, the setting of cement in place and performance of the cement after hardening. At present there is no technology available to monitor cementing operations in real time from the time of placement to the end of the borehole service life. In this study well cement was modified using carbon fibers and other additives to give it better sensing properties, also known as smart cement, so that its behavior can be monitored during the cementing operation and its life time. The electrical resistivity was identified as the sensing property of the smart cement slurry and hardened cement. In this study up to 10% Metakaolin was used. Metakaolin increased the initial resistivity of cement by 25%, the piezoresistive behavior of the cement increased by about 60% and the cement compressive strength improved by about 20%. Contamination can be detected by means of the initial resistivity and its negative effect on the compressive strength and sensing properties was reduced by means of the addition of Metakaolin.

Name thesis:degree_name

Master of Science in Civil Engineering

Level thesis:degree_level

Masters

Discipline thesis:degree_discipline

Civil Engineering

Grantor

University of Houston

Year dc:date.issued

2014

Author dc:creator

• Khodaean, Seyed Amirhossein

Advisor dc:contributor.advisor

• Vipulanandan, Cumaraswamy

Committee members dc:contributor.committeemember

• Mo, Yi-Lung
• Lim, Gino J.

• Metakaolin
• Resistivity
• Piezoresistivity

Statement dc:rights

• The author of this work is the copyright owner. UH Libraries and the Texas Digital Library have their permission to store and provide access to this work. Further transmission, reproduction, or presentation of this work is prohibited except with permission of the author(s).

Language dc:language.iso

eng

Handle dc:identifier.uri

http://hdl.handle.net/10657/2804

OAI identifier oai:identifier

oai:uh-ir.tdl.org:10657/2804