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STUDY REGARDING THE DESTABILIZATION OF STABLE EMULSIONS FROM SUPLAC AREA


IULIANA VERONICA GHEŢIU, IOANA GABRIELA STAN *, MARIA GEORGETA POPESCU
Petroleum Gas University of Ploiesti, Faculty of Petroleum and Gas Engineering/Drilling, Extraction and Transport of Hydrocarbons Department, 39 Bucuresti Blvd., 100680, Ploiesti, Romania
*Corresponding author: gabi.stan@gmail.com

Issue:

SCSCC6, Volume XVII, No. 4

Section:

Volume 17, No. 4 (2016)

Abstract:

Emulsions from the wells in the Suplac area create great difficulties in removing water due to their specifications. A complex study was conducted in order to eliminate water from emulsions using alkaline-surfactants. The choice of surfactant was made after the chromatographic SARA analysis of emulsions and the determination of their physical properties: density, viscosity, organic acidity. The samples were taken from two wells in the Suplac area. In the case of samples from A well the variation of density is 907 - 955 kg·m-3 for crude oil and 928 - 970 kg·m-3 for emulsion, while the rheological behavior of the emulsion varies between 0.680 to 0.995 Pa·s at a temperature of 25 °C and between 0.049 to 0.328 Pa·s at a temperature of 80 °C. For samples from B well the variation of density is 855 - 905 kg·m-3 for crude oil and 939 - 970 kg·m-3 for emulsion, while the rheological behavior of the emulsion varies between 0.149 to 0.797 Pa·s at a temperature of 25 °C and between 0.014 to 0.397 Pa·s at a temperature of 80 °C. The justification for choosing R - DP surfactant like reagent was based on laboratory tests which showed a maximum efficiency at 80 °C (95.69 for B and 98.75 % for A).

Keywords:

aromatic, asphaltene, emulsion breaking agents, resin, saturated, water/oil emulsion.

Code [ID]:

CSCC6201604V04S01A0004 [0004469]

Full paper:

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