Invention Application
- Patent Title: METHOD OF MINERAL OIL PRODUCTION
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Application No.: US15527249Application Date: 2015-11-17
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Publication No.: US20170355897A1Publication Date: 2017-12-14
- Inventor: Christian BITTNER , Günter OETTER , Sebastian Alexander WEIßE , Hans-Christian RATHS , Jack TINSLEY , Marcel KIENLE
- Applicant: BASF SE
- International Application: PCT/EP2015/076832 WO 20151117
- Main IPC: C09K8/584
- IPC: C09K8/584 ; C09K8/60 ; E21B43/20 ; C09K8/86

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a crude oil having more than 20° API and a deposit water having more than 100 ppm of divalent cations, and crude oil is withdrawn through at least one production well from the deposit.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.
Public/Granted literature
- US10266751B2 Method of mineral oil production Public/Granted day:2019-04-23
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