Study of BaSO4 formation kinetics and inhibition effect of polyphosphino-carboxylic acid (PPCA) with Synchrotron X-Ray Diffraction (SXRD)

Eleftheria Mavredaki, Anne Neville, Ken S. Sorbie

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

1 Citation (Scopus)

Abstract

Precipitation of barium sulphate from aqueous supersaturated solutions is one of the most well known problems in the oil industry. Precipitation of barite and other insoluble scale types (metal sulphates, calcium carbonate and silicates) propagate to undesirable formations, which adhere strongly in production tubing and in equipment parts. Formation of BaSO4 lead to a decrease in the performance of the petroleum facilities and to inevitable damage in the oil industry. Barium sulphate is one of the most insoluble types of inorganic scale. It resists many chemical methods of removal. Inhibition of barium sulphate by chemicals is generally recognized as the most appropriate approach for flow assurance. In this study Synchrotron X-Ray Diffraction was used to investigate the kinetics of barium sulphate formed on stainless steel surface at two different temperatures. For the first time SXRD measurements of BaSO4 formed in the presence of foreign ions (Sr2+, Ca2+ etc) are presented. The in-situ measurements allowed the assessment of the crystallographic nature of the formed scale and the probation into the precipitation mechanisms. Additionally this study focused on the effect of PPCA on the barium sulphate precipitation. PPCA was examined for its inhibition action in two concentrations at both temperatures. The formed barite crystal faces after the treatment with PPCA were recorded. Copyright 2008, Society of Petroieum Engineers.

Original languageEnglish
Title of host publicationSociety of Petroleum Engineers - 9th International Conference on Oilfield Scale 2008 - "Managing Scale Through the Field Lifetime"
Pages145-150
Number of pages6
Publication statusPublished - 2008
Event9th International Conference on Oilfield Scale 2008 - "Managing Scale Through the Field Lifetime" - Aberdeen, United Kingdom
Duration: 28 May 200829 May 2008

Conference

Conference9th International Conference on Oilfield Scale 2008 - "Managing Scale Through the Field Lifetime"
CountryUnited Kingdom
CityAberdeen
Period28/05/0829/05/08

Keywords

  • Barite
  • Diffraction
  • In-situ
  • Inhibition

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    Mavredaki, E., Neville, A., & Sorbie, K. S. (2008). Study of BaSO4 formation kinetics and inhibition effect of polyphosphino-carboxylic acid (PPCA) with Synchrotron X-Ray Diffraction (SXRD). In Society of Petroleum Engineers - 9th International Conference on Oilfield Scale 2008 - "Managing Scale Through the Field Lifetime" (pp. 145-150)