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Keywords: polarity
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Proceedings Papers

Paper presented at the SPE Latin American and Caribbean Petroleum Engineering Conference, November 18–20, 2015
Paper Number: SPE-177280-MS
... are similar to asphaltenes, but are soluble in higher molecular weight n-alkanes (i.e. n-pentane and n-heptane). Saturates and aromatics are considered as the non-polar fractions of the crude oil while resins and asphaltenes constitute the polar fractions ( Speight 2006 , Fan and Buckley 2002 , Akbarzadeh...
Proceedings Papers

Paper presented at the SPE Latin America Petroleum Engineering Conference, March 8–11, 1992
Paper Number: SPE-23751-MS
... Abstract A demulsifier to be effective in breaking a water-in-oil emulsion has to possess higher polarity than that of the crude polarity than that of the crude oil natural surfactants. In spite of the polarity of those natural surfactants has never been measured, this general rule guided...
Proceedings Papers

Paper presented at the SPE Latin America Petroleum Engineering Conference, October 14–19, 1990
Paper Number: SPE-21102-MS
... production control production chemistry drilling fluids and materials oilfield chemistry camorim field spe 21102 crude oil production monitoring precipitation scale inhibition mechanism upstream oil & gas polarity asphaltene hydrate remediation hydrate inhibition crude wax...

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