Temperature control of drilling fluid with phase-change materials

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Title of host publication12AIChE - 2012 AIChE Spring Meeting and 8th Global Congress on Process Safety, Conference Proceedings
DatePublished - 14 May 2012
Original languageEnglish

Abstract

The trend toward drilling deeper and consequently hotter wells places increasing demands on the electronics in the bottomhole assembly. This article introduces and discusses the benefits and limitations of a new technology to reduce the temperature of circulating fluids in wellbores. This technology makes use of phase-change materials (PCM), which utilize the latent heat of phase change to absorb the energy transferred to the drilling fluid from the formation or the drilling string. A combination of mathematical and physical modeling is used to determine the temperature reduction in drilling fluids that can be achieved with conventional PCMs, and new forms of PCMs are discussed.

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