Oil recovery and mobility control using succinamate surfactant systems

Claim 3

The process of claim 1 further characterized in that R 1 is a polymer derived from the polymerization of butene.

Claim 4

The process of claim 1 further characterized in that R 1 is a polymer derived from the polymerization of propene.

Claim 5

The process of claim 1 further characterized in that R 1 is an aliphatic polymer derived from the polymerization of olefins having from 3 to about 6 carbon atoms per molecule.

Claim 6

The process of claim 2 further characterized in that R 1 has an average molecular weight in the range of from about 200 to about 500.

Claim 7

The process of claim 2 further characterized in that R 1 has an average molecular weight about 280.

Claim 8

The process of claim 2 further characterized in that R 1 has an average molecular weight about 320.

Claim 9

The process of claim 2 further characterized in that R 1 has an average molecular weight at about 340.

Claim 10

The process of claim 2 further characterized in that R 1 has an average molecular weight at about 420.

Claim 11

The process of claim 1 further characterized in that R 2 is a lower alkyl selected from the group consisting of methyl, ethyl, propyl, butyl, and pentyl.

Claim 12

The process of claim 1 further characterized in that R 2 is B-hydroxyethyl.

Claim 13

The process of claim 1 further characterized in that X is a cation selected from the group consisting of sodium, potassium, lithium, NH 3 NH 2 , ammonium, RNH 3 , ##STR9## where R, R 4 and R 5 are selected from lower alkyl.

Claim 14

The process of claim 1 further characterized in that R 1 comprises a polymer derived from butene having an average molecular weight in the range of from about 200 to about 500; R 2 is selected from alkyls having less than six carbon atoms per molecule; and X is selected from the group consisting of sodium and ammonium.

Claim 15

In a method for recovering oil from an oil-bearing formation which comprises injecting into the formation an aqueous fluid to displace the oil in the formation containing an effective amount of an anionic sulfonate surfactant, the improvement which comprises incorporating into the aqueous fluid from about 1 to 15 weight percent based on the aqueous fluid of a water soluble succinamate surface-active agent having the following general formula: ##STR10## wherein R 1 is alkenyl having an average molecular weight in the range of from about 150 to about 600; each R 2 is independently selected from the group consisting of hydrogen, lower alkyls, hydroxyl-substituted lower alkyls, hydroxyl-substituted ethoxylated lower alkyls; R 3 is O is O--SO 3 ; and X is a cation.

Claim 16

In a method for recovering oil from an oil-bearing formation which comprises injecting into the formation an aqueous fluid to displace the oil in the formation containing an effective amount of an anionic sulfonate surfactant, the improvement which comprises incorporating into the aqueous fluid from about 1 to 15 weight percent based on the aqueous fluid of a water soluble succinamate surface-active agent having the following general formula: ##STR10## wherein R 1 is alkenyl having an average molecular weight in the range of from about 150 to about 600; each R 2 is independently selected from the group consisting of hydrogen, lower alkyls, hydroxyl-substituted lower alkyls, hydroxyl-substituted ethoxylated lower alkyls; R 3 is O is O--SO 3 ; and X is a cation.

Claim 17

The process of claim 14 further characterized in that R 1 is a polymer derived from the polymerization of butene.

Claim 18

The process of claim 14 further characterized in that R 1 is a polymer derived from the polymerization of propene.

Claim 19

The process of claim 14 further characterized in that R 1 is an aliphatic polymer derived from the polymerization of olefins having from 3 to about 6 carbon atoms per molecule.

Claim 20

The process of claim 15 further characterized in that R 1 has an average molecular weight in the range of from about 200 to about 500.

Claim 21

The process of claim 15 further characterized in that R 1 has an average molecular weight about 280.

Claim 22

The process of claim 15 further characterized in that R 1 has an average molecular weight about 320.

Claim 23

the process of claim 15 further characterized in that R 1 has an average molecular weight at about 340.

Claim 24

The process of claim 15 further characterized in that R 1 has an average molecular weight at about 420.

Claim 25

The process of claim 14 further characterized in that R 2 is a lower alkyl selected from the group consisting of methyl, ethyl, propyl, butyl, and pentyl.

Claim 26

The process of claim 14 further characterized in that R 2 is B-hydroxyethyl.

Claim 27

The process of claim 14 further characterized in that X is selected from the group consisting of sodium, potassium, lithium, NH 3 NH 2 ammonium RNH 3 , ##STR11## where R, R 4 and R 5 are selected from lower alkyl.

Claim 28

The process of claim 14 further characterized in that said succinamate surface-active agent is present in said aqueous fluid in a weight ratio of succinate to anionic surfactant agent of from about 0.1 to about 1.5.

Claim 29

The process of claim 14 further characterized in that R 1 comprises a polymer derived from butene having an average molecular weight in the range of from about 200 to about 500; R 2 is selected from alkyls having less than six carbon atoms per molecule; and X is selected from the group consisting of sodium and ammonium.