Alkyl aryl alkyl-sulfonate surfactant composition and its application in tertiary oil recovery
A technology of alkyl aryl alkyl sulfonate and surfactant, which is applied in the field of novel alkyl aryl alkyl sulfonate type surfactant composition, can solve problems such as formation and oil well damage, and achieve low oil and water Interfacial tension, the best oil displacement effect, the effect of enhanced oil recovery
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[0061] Example 1: Preparation of alkyl aryl alkyl sulfonate type surfactant
[0062] 1. m is 12, n is 4, p is 0, that is R 1 Is C 12 H 25 Alkyl; R 2 Is C 4 H 8 Alkyl; R 3 Preparation of H-group alkyl aryl alkyl sulfonate type surfactant:
[0063] Add 10mol of benzene (780g) into the reaction kettle, stir, and add to the catalyst AlCl 3 Under the action, 1 mol (168g) of linear dodecene was added dropwise at 58~60℃ to obtain 240g of dodecylbenzene, and then added to the reactor, stirring, and the catalyst AlCl 3 Under the action, 1 mol (127g) of dichlorobutane was added dropwise at 58-60°C to obtain 320g of dodecylbenzenebutyl chloride. Then add 126 g of sodium bisulfite, heat and stir until the reactant becomes transparent. After concentration, m is 12, n is 4, p is 0, which is R 1 Is C 12 H 25 Alkyl; R 2 Is C 4 H 8 Alkyl; R 3 Sodium dodecyl phenyl butyl sulfonate for the H group.
[0064] 2. Preparation of alkyl aryl alkyl sulfonate type surfactant composition
[0065] Take the ab...
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[0066] Example 2: Preparation of alkyl aryl alkyl sulfonate type surfactant
[0067] 1. m is 14, n is 3, p is 0, that is R 1 Is C 14 H 29 Alkyl; R 2 Is C 3 H 6 Alkyl; R 3 Preparation of H-group alkyl aryl alkyl sulfonate type surfactant:
[0068] Add 10mol of benzene (780g) into the reaction kettle, stir, and add to the catalyst AlCl 3 Under the action, 1 mol (196g) of linear tetradecene was added dropwise at 58~60℃ to obtain 270g of tetradecylbenzene, and then added to the reactor, stirring, and the catalyst AlCl 3 Under the action, 1 mol (77g) of allyl chloride was added dropwise at 58-60°C to obtain 311g of tetradecylphenylpropene. Then add 126 g of sodium bisulfite, heat and stir until the reactant becomes transparent. After concentration, m is 14, n is 3, p is 0, which is R 1 Is C 14 H 29 Alkyl; R 2 Is C 3 H 6 Alkyl; R 3 Sodium tetradecyl phenyl propyl sulfonate of H group.
Example Embodiment
[0069] Example three
[0070] Alkyl aryl alkyl sulfonate type surfactant composition, the composition includes the following ingredients:
[0071] ①The alkyl aryl alkyl sulfonate type surfactant is 0.3% (weight);
[0072] Wherein the surfactant is m is 12, n is 4, p is 0, that is R 1 Is C 12 H 25 Alkyl; R 2 Is C 4 H 8 Alkyl; R 3 Sodium dodecyl phenyl butyl sulfonate with H group
[0073] ②The polymer is 0.25% (weight); the polymer is water-soluble polyacrylamide with a molecular weight of 21 million;
[0074] ③The balance is the sewage injected into the oilfield.
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