[12] Patent
[11] Patent No.:GC0009233  
[45] Date of Publishing the Grant of the Patent: 31/Dec /2018                56/2018  
Number of the Decision to Grant the Patent:2018/140688
Date of the Decision to Grant the Patent:02/Dec/2018

[21] Application No.:GC 2015-30413

[22] Filing Date:17/11/2015

[30] Priority:

[33] State [32] Priority date [31] Priority No.
US
18/11/2014
62/081,062

[72] Inventors:1- Bittner, Christian،2- Oetter, Günter،3- Weiße, Sebastian Alexander،4- Raths, Hans-Christian،5- Kienle, Marcel Patrik

[73] Owner: BASF SE, 67056, Ludwigshafen, Germany

[74] Agent: Saba & Co. T.M.P

  

 

  

[51]IPC:
Int. Cl.: B01F 17/00; C09K 8/584, 8/60, 8/86; E21B 43/00 (2006.01)

[56] Cited Documents:

-WO 2009/124922 A1 (BASF SE [DE]; BITTNER CHRISTIAN [DE]; OETTER GUENTER [DE]; STEI NBRENNE) 15 October 2009
-US 5 378 409 A (OFOSU-ASANTE KOFI [US]) 3 January 1995
 
Examiner: Eng. Sattam M.AlMutairi

[54] METHOD OF MINERAL OIL PRODUCTION
[57] Abstract: The present invention relates to a method for producing mineral oil from underground mineral oil deposits, in which an aqueous formulation comprising at least a mixture of alkyl ether carboxylate and corresponding alkyl ether alcohol, where the alkyl ether carboxylate has been prepared from the alkyl ether alcohol and the molar ratio in the mixture of alkyl ether carboxylate:alkyl ether alcohol is from 51:49 to 92:8, is injected through at least one injection well into a mineral oil deposit, where the deposit has a deposit temperature of 55°C to 150°C, a crude oil having more than 20° API and a deposit water having more than 100 ppm of divalent cations, and crude oil is withdrawn through at least one production well from the deposit. The invention further relates to the preparation of the mixture and to a concentrate comprising the mixture.
No. of claims: 45


 

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