Cristin-resultat-ID: 730635
Sist endret: 25. oktober 2016 14:39
NVI-rapporteringsår: 2009
Resultat
Vitenskapelig artikkel
2009

Retention of CO2-Foaming Agents on Chalk: Effects of Surfactant Structure, Temperature., and Residual-Oil Saturation

Bidragsytere:
  • Ingebret Fjelde
  • John Zuta og
  • Ingrid Hauge

Tidsskrift

SPE Reservoir Evaluation and Engineering
ISSN 1094-6470
e-ISSN 1930-0212
NVI-nivå 2

Om resultatet

Vitenskapelig artikkel
Publiseringsår: 2009
Volum: 12
Hefte: 3
Sider: 419 - 426

Importkilder

Isi-ID: 000267380900008

Beskrivelse Beskrivelse

Tittel

Retention of CO2-Foaming Agents on Chalk: Effects of Surfactant Structure, Temperature., and Residual-Oil Saturation

Sammendrag

Results show that increasing the ethoxylation degree of the surfactant decreases the retention on chalk cores saturated with formation water at 55 degrees C. S2, which was found to give the lowest retention at 55 degrees C, was found to have a higher retention at 70 degrees C. The presence of residual-oil saturation after waterflooding (S-orw) decreased the retention of S1 and increased the retention of S2 in comparison to the absence of residual oil. The retention of S2 after waterflooding followed by CO, flooding at 340 bar and 55 degrees C was in the same range as retention on 100%-water-saturated core, but significantly lower than retention in residual-oil-saturated cores. The experiments have shown that not only are surfactant structure and temperature important for the retention of surfactants, but also the presence of oil.

Bidragsytere

Ingebret Fjelde

  • Tilknyttet:
    Forfatter
    ved IRIS NT ved NORCE Norwegian Research Centre AS
  • Tilknyttet:
    Forfatter
    ved Institutt for energi- og petroleumsteknologi ved Universitetet i Stavanger

John Zuta

  • Tilknyttet:
    Forfatter
    ved IRIS - International Research Institute of Stavanger ved NORCE Norwegian Research Centre AS

Ingrid Hauge

  • Tilknyttet:
    Forfatter
    ved Equinor
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