E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
31/16
E21B 43/27 (2006.01) C09K 8/74 (2006.01)
Patent
CA 1247353
ABSTRACT Formations surrounding oil wells, gas wells, injection wells and similar bore holes are treated by the injection of a microemulsion containing an acid solution. The main surfactant of the microemulsion is characterized by having at least two hydrocarbon groups attached to a nitrogen atom via a polar groups.
494723
Andreasson Eva M.
Egeli Finn
Holmberg Krister A.
Nystrom Borje
Osterberg Eva M.
Berol Kemi Ab
Smart & Biggar
Tendex Kjemiservice A/s
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