Title: Micellar slug for oil recovery
Application Number: 85108730 Application Date: 1985.12.02
Publication Number: 1001482 Publication Date: 1986.07.09
Approval Pub. Date: 1991.04.10 Granted Pub. Date: 1991.04.10
International Classifi-cation: C09K7/02;E21B43/22
Applicant(s) Name: Lion Corporation Address:
Inventor(s) Name: Chikoshi Molita;Junyichi Yamada;Toshiyuki Wukigai;
Attorney & Agent: ZHANG YUANZHONG CUI XIAOGUANG
Abstract:
    A micellar slug for use in the recovery of oil, consisting essentially of a surfactant and an aqueous medium, which may contain an inorganic salt. The surfactant contains, as essential constituents, (a) at least one internal olefin sulfonate having 10 to 26 carbon atoms; and (b) 0.1 to 60 parts by weight, based on 100 parts by weight of the internal olefin sulfonate, of at least one ether sulfonate having the general formula: R1-O-(R2O)m-(R3O)n-R4-SO3X (I) wherein R1 represents an alkyl or alkenyl phenyl group having 12 to 26 carbon atoms or an alkyl or alkenyl group having 10 to 24 carbon atoms, R2 represents C2H4 or C3H6, R3 represents C2H4 or C3H6, R4 represents C2H4, C3H6, or CH2CH(OH)CH2, n
Time: 5