C - Chemistry – Metallurgy – 09 – K
Patent
C - Chemistry, Metallurgy
09
K
C09K 8/584 (2006.01)
Patent
CA 2758853
A method of treating a very high salinity high temperature hydrocarbon containing formation is described. The method includes (a) providing a hydrocarbon recovery composition to at least a portion of a hydrocarbon containing formation having a brine salinity of above about 13 wt% and a temperature of above about 7°C, wherein the composition comprises a C15-18 internal olefin sulfonate; and (b) allowing the composition to interact with hydrocarbons in the hydrocarbon containing formation.
L'invention porte sur un procédé de traitement d'une formation contenant des hydrocarbures, à haute température, et à très haute salinité. Le procédé selon l'invention consiste à (a) introduire une composition de récupération d'hydrocarbures dans au moins une partie d'une formation contenant des hydrocarbures dont la salinité de saumure est supérieure à environ 13% en poids et la température est supérieure à environ 70 °C, la composition comprenant un sulfonate d'oléfine interne en C15-18 ;et (b) amener la composition à interagir avec les hydrocarbures dans la formation contenant des hydrocarbures.
Barnes Julian Richard
Raney Kirk Herbert
Semple Thomas Carl
Shpakoff Paul Gregory
Smit Jasper Roelf
Shell Internationale Research Maatschappij B.v.
Smart & Biggar
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