SPE Journal
Volume 18,
Number 3,
June 2013,
pp. 575-582
Summary
A novel barite-inhibition assay based on the nucleation and inhibition model
has been proposed and used to evaluate the thermal stability of phosphonates
and polymeric scale inhibitors with regard to their potential application in
high temperature wells. Systematic experiments have been conducted to
investigate the time (minutes to days) and temperature (up to 200°C) dependence
of inhibitor thermal degradation, the impact of stainless steel and iron on the
degradation of inhibitors at high temperatures, and the difference between
aging tests with inhibitors in solution and with those inhibitors adsorbed on
core materials. The results not only enable a more accurate understanding of
the thermal degradation of scale inhibitors but also facilitate the selection
and placement of scale inhibitors for high-temperature oil and gas
production.
© 2013. Society of Petroleum Engineers
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History
- Original manuscript received:
12 March 2012
- Meeting paper published:
30 May 2012
- Revised manuscript received:
4 September 2012
- Manuscript approved:
2 October 2012
- Published online:
8 January 2013
- Version of record:
6 June 2013
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