Método de producción de aceite mineral

    公开(公告)号:CO2017006004A2

    公开(公告)日:2017-11-10

    申请号:CO2017006004

    申请日:2017-06-16

    Applicant: BASF SE

    Abstract: RESUMEN La presente invención se refiere a un método para producir aceite mineral de depósitos subterráneos de aceite mineral, en donde una formulación acuosa que comprende al menos una mezcla de carboxilato de alquiléter y alcohol de alquiléter correspondiente, en donde el carboxilato de alquiléter se preparó de alcohol de alquiléter, y la relación molar en la mezcla de carboxilato de alquiléter:alcohol de alquiléter es de 51:49 a 92:8, se inyecta a través de al menos un pozo de inyección en un depósito de aceite mineral, en donde el depósito tiene una temperatura de depósito de 55 °C a 150 °C, en donde el petróleo crudo tiene más de 20° API y el agua de depósito tiene más de 100 ppm de cationes divalentes, y el petróleo crudo se retira del depósito a través de al menos un pozo de producción. La invención también se refiere a la preparación de la mezcla y a un concentrado que comprende la mezcla.

    SOLUBILITY ENHANCERS ON BASIS OF ALLYL ALCOHOL FOR AQUEOUS SURFACTANT FORMULATIONS FOR ENHANCED OIL RECOVERY

    公开(公告)号:CA3068359A1

    公开(公告)日:2019-01-17

    申请号:CA3068359

    申请日:2018-07-11

    Applicant: BASF SE

    Abstract: The present invention relates to a method for the production of crude oil from subterranean, oil-bearing formations comprising at least the following steps of providing an aqueous surfactant composition comprising water and a surfactant mixture, injecting said surfactant composition into the subterranean, oil-bearing formation through at least one injection well, thereby reducing the crude oil-water interfacial tension to less than 0.1 mN/m, and withdrawing crude oil from the formation through at least one production well, wherein the surfactant mixture comprises at least a surfactant (A) having the general formula R1-O-(CH2CH(R2)O)a-(CH2CH(CH3)O)b-(CH2CH2O)c-R3-Y- M+ (I) and a solubility enhancer (B) having the general formula R4-O-(CH2CH(CH3)O)x-(CH2CH2O)y-R3-Y- M+ (II), wherein R1 to R4, a, b, c, x, y, Y and M have the meaning as defined the the description and claims. The invention further relates to said aqueous surfactant composition and methods for preparing the same as well as the use of solubility enhancer (B) for enhancing the solubility of anionic surfactant (A).

    Method of mineral oil production
    3.
    发明专利

    公开(公告)号:AU2015348408A1

    公开(公告)日:2017-06-08

    申请号:AU2015348408

    申请日:2015-11-17

    Applicant: BASF SE

    Abstract: The present invention relates to a method of 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.

    Method of mineral oil production
    5.
    发明专利

    公开(公告)号:AU2015348408B2

    公开(公告)日:2019-08-15

    申请号:AU2015348408

    申请日:2015-11-17

    Applicant: BASF SE

    Abstract: The present invention relates to a method of 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.

    SOLUBILITY ENHANCERS ON BASIS OF ALLYL ALCOHOL FOR AQUEOUS SURFACTANT FORMULATIONS FOR ENHANCED OIL RECOVERY

    公开(公告)号:CA3068362A1

    公开(公告)日:2019-01-17

    申请号:CA3068362

    申请日:2018-07-11

    Applicant: BASF SE

    Abstract: The present invention relates to a method for the production of crude oil from subterranean, oil- bearing formations comprising at least the following steps of providing an aqueous surfactant composition comprising water and a surfactant mixture, injecting said surfactant composition into the subterranean, oil-bearing formation through at least one injection well, thereby reducing the crude oil-water interfacial tension to less than 0.1 mN/m, and withdrawing crude oil from the formation through at least one production well, wherein the surfactant mixture comprises at least a surfactant (A) having the general formula R1-O-(CH2CH(R2)O)a-(CH2CH(CH3)O)b- (CH2CH2O)c-R3-Y- M+ (I) and a solubility enhancer (B) having the general formula R4-O-(CH2CH(CH3)O)x-(CH2CH2O)y-R3-Y- M+ (II), wherein R1 to R4, a, b, c, x, y, Y and M have the meaning as defined the the description and claims. The invention further relates to said aqueous surfactant composition and methods for preparing the same as well as the use of solubility enhancer (B) for enhancing the solubility of anionic surfactant (A).

    METHOD OF MINERAL OIL PRODUCTION
    10.
    发明专利

    公开(公告)号:CA2967158A1

    公开(公告)日:2016-05-26

    申请号:CA2967158

    申请日:2015-11-17

    Applicant: BASF SE

    Abstract: The present invention relates to a method of 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.

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