Comprehensive assessment of additive and class g cement properties affecting rheology, fluid loss, setting time and long term characteristics of elastic cements

V. C. Kelessidis, M. Fraim, M. Fardis, E. Karakosta, G. Diamantopoulos, P. Arkoudeas, S. Elhardalo, L. Lagkaditi, G. Papavassiliou

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

4 Citations (Scopus)

Abstract

Cement sheath integrity is very important in drilling and completion. Several additives are used to aid the process of preparing flow able cement slurry, gaining sufficient strength over time. Sheaths need to be elastic and resilient and withstand several temperature and pressure cycles over the life of the well. Today's technology has made available very sophisticated experimental methods for the assessment of the behavior of slurries under various harsh well conditions. Here, we present a comprehensive laboratory assessment of the properties of two different non-foamed cement slurries, by combining initial tests, such as rheology, fluid loss, and thickening time, with strength, ultrasonic and advanced Nuclear Magnetic Resonance (NMR) measurements, at both room and elevated pressure and temperature. In this way it is possible to correlate cement microstructure with the mechanical properties of cement at borehole conditions, acquiring critical information for designing better sheath integrity. A very good correlation was found between the microscopic NMR data that probe the evolution of the average pore size and consequently the kinetics of hydration with macroscopic compressive strength data. In view of this approach, the multifunctional effect of a latex based additive on the hydration properties of class G cement was investigated.

Original languageEnglish
Title of host publicationSociety of Petroleum Engineers - European Unconventional Resources Conference and Exhibition 2014: Unlocking European Potential
PublisherSociety of Petroleum Engineers
Pages419-429
Number of pages11
Volume1
ISBN (Print)9781632660817
Publication statusPublished - 2014
EventEuropean Unconventional Resources Conference and Exhibition 2014: Unlocking European Potential - Vienna, Austria
Duration: 25 Feb 201427 Feb 2014

Other

OtherEuropean Unconventional Resources Conference and Exhibition 2014: Unlocking European Potential
CountryAustria
CityVienna
Period25/2/1427/2/14

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ASJC Scopus subject areas

  • Geochemistry and Petrology

Cite this

Kelessidis, V. C., Fraim, M., Fardis, M., Karakosta, E., Diamantopoulos, G., Arkoudeas, P., Elhardalo, S., Lagkaditi, L., & Papavassiliou, G. (2014). Comprehensive assessment of additive and class g cement properties affecting rheology, fluid loss, setting time and long term characteristics of elastic cements. In Society of Petroleum Engineers - European Unconventional Resources Conference and Exhibition 2014: Unlocking European Potential (Vol. 1, pp. 419-429). Society of Petroleum Engineers.