A general correlation for predicting the suppression of hydrate dissociation temperature in the presence of thermodynamic inhibitors

Kasper K. Østergaard, Bahman Tohidi, Ali Danesh, Adrian C. Todd

Research output: Contribution to journalArticle

69 Citations (Scopus)

Abstract

Thermodynamic inhibitors can be used in avoiding gas hydrate problems in natural gas and oil production and transportation. A new correlation for predicting the suppression of the hydrate dissociation temperature of various petroleum fluids in the presence of different thermodynamic inhibitors (e.g., electrolytes and organic inhibitors) is presented. Th e correlation, which can be applied to drilling and reservoir fluids, requires inhibitor concentration, pressure of the system and, if known, the dissociation pressure of the fluid in the presence of distilled water at 273.15 K. The correlation has been developed using hydrate phase boundaries for methane and seven natural gases in the presence of various single inhibitors generated by a well-proven comprehensive thermodynamic model. It covers nine electrolyte solutions and six organic inhibitors, which may be available and/or added to the reservoir and drilling fluids. The developed correlation is generic and could be easily extended to other salts and organic inhibitors. © 2005 Elsevier B.V. All rights reserved.

Original languageEnglish
Pages (from-to)70-80
Number of pages11
JournalJournal of Petroleum Science and Engineering
Volume48
Issue number1-2
DOIs
Publication statusPublished - 30 Jul 2005

Keywords

  • Correlation
  • Gas hydrate
  • Inhibition effect
  • Organic inhibitor
  • Salt
  • Suppression temperature

Fingerprint Dive into the research topics of 'A general correlation for predicting the suppression of hydrate dissociation temperature in the presence of thermodynamic inhibitors'. Together they form a unique fingerprint.

  • Cite this