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US 2024/0352190 A1Published application
Hydrocarbyl tetralin polyethersulfonate, preparation method therefor and use thereof
AssigneesChina Petroleum & Chemical Corporation, Shanghai Research Institute of Petrochemical Technology, Sinopec
InventorsXinning BAO, Yingcheng LI, Weidong ZHANG, Jun JIN, Yong MENG, Li ZHANG
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Abstract
A hydrocarbyl tetralin polyethersulfonate, preparation method therefor and use thereof are provided. The hydrocarbyl tetralin polyethersulfonate is of formula (I-0), The hydrocarbyl tetralin polyethersulfonate has a high surface and interface activity, can be used in an oil reservoir exploitation, especially in a high-temperature and high-salt oil reservoir exploitation, to improve crude oil recovery.
Claims16
A hydrocarbyl tetralin polyethersulfonate shown by formula (I-0),
- wherein:
- R1, R2, R5 and R6 are each independently H or C1-C30 hydrocarbyl, provided that at least one of R1, R2, R5 and R6 is not H;
- R3, R4 are independently selected from H, C1-C10 hydrocarbyl, C1-C10 hydrocarbon carbonyl, C1-C10 hydrocarbon sulfonic group, C1-C10 hydrocarbon alcohol sulfonic group, C1-C10 hydrocarbon carboxylic group or —SO3(M)n;
- X is selected from N and O atoms, provided that a=1 when group X is N, and a=0 when group X is O;
- -(Polyoxyalkylene1)- is a group formed by connecting one or more of —(PO)x1—, —(EO)y1— and —(BO)z1—, and -(Polyoxyalkylene2)- is a group formed by connecting one or more of —(PO)x2—, —(EO)y2— and —(BO)z2—;
- provided that x1+x2=0˜30, y1+y2=1˜30, z1+z2=0˜30;
- M is selected from any one of alkali metal ion and alkaline earth metal ion;
- when M is an alkali metal ion, n is 1, and when M is an alkaline earth metal ion, n is 0.5;
- wherein the hydrocarbyl moiety of R1-R6 is not substituted, or is substituted or inserted by a heteroatom selected from O, S and N.
6 more elements
Dependencies are inferred from the claim text.