The effect of ammonium bisulfite on sulfide in brine/H2S solution

B. A. Lasebikan, A. R. Akisanya, W. F. Deans, D. E. MacPhee, L. Boyle

Research output: Contribution to journalArticle

Abstract

Ammonium bisulfite (ABS) is used as an oxygen scavenger by the oil and gas industry in water flood and production systems. ABS is injected into the wellbore production annulus to scavenge any dissolved oxygen in the brine. Such brine used, as part of the well completion process might come into contact with hydrogen sulfide (H2S). The test program evaluated different concentrations of ABS in deaerated deionized water and brine solutions bubbled with H2S. The sulfide level in the deaerated deionized water and brine solutions were measured as a function of the stepwise increase in the ABS concentration. The objective of this research was to obtain an understanding of the chemistry of ABS combined with H2S in brine solutions. The results established that there is a relationship between the amounts of sulfide measured and increase in ABS concentration in H2S brine solutions at low pH. The difference in the degree of precipitation in the deaerated deionized water and brine solutions were noticeable. The ABS, also behaved like a pH buffer in solution due to relatively constant pH of the solution during precipitation and thereafter. Sulfite was reduced to sulfide and sulfur thus ABS should be included in material qualification test programs of well tubuluars especially where H2S presence is identified.

Original languageEnglish
Number of pages22
JournalNACE - International Corrosion Conference Series
Publication statusPublished - 2010

Fingerprint

Sulfides
Deionized water
Well completion
Hydrogen sulfide
Hydrogen Sulfide
Gas industry
Sulfites
Dissolved oxygen
brine
ammonium sulfite
Sulfur
Buffers
Oils
Oxygen
Water

Keywords

  • Ammonium bisulfite
  • Brine
  • Concentration
  • Hydrogen sulfide
  • pH
  • Precipitation
  • Sulfide

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Chemistry(all)
  • Materials Science(all)

Cite this

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title = "The effect of ammonium bisulfite on sulfide in brine/H2S solution",
abstract = "Ammonium bisulfite (ABS) is used as an oxygen scavenger by the oil and gas industry in water flood and production systems. ABS is injected into the wellbore production annulus to scavenge any dissolved oxygen in the brine. Such brine used, as part of the well completion process might come into contact with hydrogen sulfide (H2S). The test program evaluated different concentrations of ABS in deaerated deionized water and brine solutions bubbled with H2S. The sulfide level in the deaerated deionized water and brine solutions were measured as a function of the stepwise increase in the ABS concentration. The objective of this research was to obtain an understanding of the chemistry of ABS combined with H2S in brine solutions. The results established that there is a relationship between the amounts of sulfide measured and increase in ABS concentration in H2S brine solutions at low pH. The difference in the degree of precipitation in the deaerated deionized water and brine solutions were noticeable. The ABS, also behaved like a pH buffer in solution due to relatively constant pH of the solution during precipitation and thereafter. Sulfite was reduced to sulfide and sulfur thus ABS should be included in material qualification test programs of well tubuluars especially where H2S presence is identified.",
keywords = "Ammonium bisulfite, Brine, Concentration, Hydrogen sulfide, pH, Precipitation, Sulfide",
author = "Lasebikan, {B. A.} and Akisanya, {A. R.} and Deans, {W. F.} and MacPhee, {D. E.} and L. Boyle",
note = "NACE - International Corrosion Conference Series 2010, 22p Corrosion 2010; San Antonio, TX; United States; 14 March 2010 through 18 March 2010",
year = "2010",
language = "English",
journal = "NACE - International Corrosion Conference Series",
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TY - JOUR

T1 - The effect of ammonium bisulfite on sulfide in brine/H2S solution

AU - Lasebikan, B. A.

AU - Akisanya, A. R.

AU - Deans, W. F.

AU - MacPhee, D. E.

AU - Boyle, L.

N1 - NACE - International Corrosion Conference Series 2010, 22p Corrosion 2010; San Antonio, TX; United States; 14 March 2010 through 18 March 2010

PY - 2010

Y1 - 2010

N2 - Ammonium bisulfite (ABS) is used as an oxygen scavenger by the oil and gas industry in water flood and production systems. ABS is injected into the wellbore production annulus to scavenge any dissolved oxygen in the brine. Such brine used, as part of the well completion process might come into contact with hydrogen sulfide (H2S). The test program evaluated different concentrations of ABS in deaerated deionized water and brine solutions bubbled with H2S. The sulfide level in the deaerated deionized water and brine solutions were measured as a function of the stepwise increase in the ABS concentration. The objective of this research was to obtain an understanding of the chemistry of ABS combined with H2S in brine solutions. The results established that there is a relationship between the amounts of sulfide measured and increase in ABS concentration in H2S brine solutions at low pH. The difference in the degree of precipitation in the deaerated deionized water and brine solutions were noticeable. The ABS, also behaved like a pH buffer in solution due to relatively constant pH of the solution during precipitation and thereafter. Sulfite was reduced to sulfide and sulfur thus ABS should be included in material qualification test programs of well tubuluars especially where H2S presence is identified.

AB - Ammonium bisulfite (ABS) is used as an oxygen scavenger by the oil and gas industry in water flood and production systems. ABS is injected into the wellbore production annulus to scavenge any dissolved oxygen in the brine. Such brine used, as part of the well completion process might come into contact with hydrogen sulfide (H2S). The test program evaluated different concentrations of ABS in deaerated deionized water and brine solutions bubbled with H2S. The sulfide level in the deaerated deionized water and brine solutions were measured as a function of the stepwise increase in the ABS concentration. The objective of this research was to obtain an understanding of the chemistry of ABS combined with H2S in brine solutions. The results established that there is a relationship between the amounts of sulfide measured and increase in ABS concentration in H2S brine solutions at low pH. The difference in the degree of precipitation in the deaerated deionized water and brine solutions were noticeable. The ABS, also behaved like a pH buffer in solution due to relatively constant pH of the solution during precipitation and thereafter. Sulfite was reduced to sulfide and sulfur thus ABS should be included in material qualification test programs of well tubuluars especially where H2S presence is identified.

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