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A process for recovering oil from an oil-bearing formation comprises introducing into said formation an aqueous composition comprising at least one sulfonated derivative of one or more internal olefins, said internal olefins being characterized by having low amounts of tri-substitution on the olefin

A process for recovering oil from an oil-bearing formation comprises introducing into said formation an aqueous composition comprising at least one sulfonated derivative of one or more internal olefins, said internal olefins being characterized by having low amounts of tri-substitution on the olefin bond, said sulfonated derivative being obtained by sulfonating a composition comprising internal olefins of the formula: R1R2C═CR3R4 wherein R1, R2, R3 and R4 are the same or different and are hydrogen or straight- or branched-chain, saturated hydrocarbyl groups and the total number of carbon atoms of R1, R2, R3 and R4 is 6 to 44 with the proviso that at least about 96 mole percent of R1 and R3 are straight- or branched-chain, saturated hydrocarbyl groups and at least about 96 mole percent of R2 and R4 are hydrogen. Further provided are compositions for use in recovering oil from an oil-bearing formation which comprise the sulfonated derivatives of one or more internal olefins having low amounts of tri-substitution on the olefin bond.

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1. A process for recovering oil from an oil-bearing formation comprising introducing into said formation an aqueous composition comprising at least one surfactant comprising a sulfonated derivative of one or more internal olefins, said sulfonated derivative being obtained by sulfonating a compositio

1. A process for recovering oil from an oil-bearing formation comprising introducing into said formation an aqueous composition comprising at least one surfactant comprising a sulfonated derivative of one or more internal olefins, said sulfonated derivative being obtained by sulfonating a composition comprising internal olefins of the formula: R1R2C═CR3R4 wherein R1, R2, R3 and R4 are the same or different and are hydrogen or straight or branched-chain, saturated hydrocarbyl groups and the total number of carbon atoms of R1, R2, R3 and R4 is 6 to 44 with the proviso that at least about 96 mole percent of R1 and R3 are straight- or branched-chain, saturated hydrocarbyl groups and at least about 96 mole percent of R2 and R4 are hydrogen. 2. The process of claim 1 wherein the internal olefins are obtained by the metathesis of one or more alpha-olefins in the presence of metathesis catalyst. 3. The process of claim 2 wherein the alpha-olefins correspond to the formula: R5HC═CH2 wherein R5 is a straight-chain or branched-chain C3-C22 hydrocarbyl group. 4. The process of claim 3 wherein less than about six mole percent of R5 contains alkyl branching. 5. The process of claim 2 wherein the metathesis catalyst is selected from the group consisting of Grubbs-type catalysts, Schrock catalysts, Hoveyda-Grubbs, tungsten catalysts, molybdenum catalysts and rhenium catalysts. 6. The process of claim 2 wherein the metathesis catalyst is of the formula: wherein: M is a Group 8 transition metal;L1, L2 and L3 are neutral electron donor ligands;n is 0 or 1, such that L3 may or may not be present;m is 0, 1, or 2;X1 and X2 are each independently anionic ligands; andR1 and R2 are independently selected from hydrogen, hydrocarbyl, substituted hydrocarbyl, heteroatom-containing hydrocarbyl, substituted heteroatom-containing hydrocarbyl, and functional groups, wherein any two or more of X1, X2, L1, L2, L3, R1, and R2 can be taken together to form a cyclic group, and further wherein any one or more of X1, X2, L1, L2, L3, R1, and R2 may be attached to a support. 7. The process of claim 1 wherein at least about 97 mole percent of R1 and R3 are straight- or branched-chain, saturated hydrocarbyl groups and at least about 97 mole percent of R2 and R4 are hydrogen. 8. The process of claim 1 wherein at least about 98 mole percent of R1 and R3 are straight- or branched-chain, saturated hydrocarbyl groups and at least about 98 mole percent of R2 and R4 are hydrogen. 9. The process of claim 1 wherein at least about 99 mole percent of R1 and R3 are straight- or branched-chain, saturated hydrocarbyl groups and at least about 99 mole percent of R2 and R4 are hydrogen. 10. The process of claim 1 wherein less than about six mole percent of R1 and R3 contain alkyl branching. 11. The process of claim 1 wherein the aqueous composition comprises at least one of co-surfactant, solvent, polymer or alkali. 12. The process of claim 1 wherein the oil is a waxy crude oil. 13. A process for enhanced oil recovery from an oil-bearing formation comprising introducing into said formation an aqueous composition comprising at least one surfactant comprising a sulfonated derivative of one or more internal olefins, said sulfonated derivative being obtained by sulfonating a composition comprising internal olefins of the formula: R1R2C═CR3R4 wherein R1, R2, R3 and R4 are the same or different and are hydrogen or straight- or branched-chain, saturated hydrocarbyl groups and the total number of carbon atoms of R1, R2, R3 and R4 is 6 to 44 with the proviso that at least about 96 mole percent of R1 and R3 are straight- or branched-chain, saturated hydrocarbyl groups and at least about 96 mole percent of R2 and R4 are hydrogen, with the further proviso that said internal olefins are obtained by the metathesis of alpha-olefins of the formula: R5HC═CH2 wherein R5 is a straight-chain or branched-chain C3-C22 hydrocarbyl group in the presence of metathesis catalyst. 14. The process of claim 13 wherein the metathesis catalyst is selected from the group consisting of Grubbs-type catalysts, Hoveyda-Grubbs, Schrock catalysts, tungsten catalysts, molybdenum catalysts and rhenium catalysts. 15. The process of claim 13 wherein the metathesis catalyst is of the formula: wherein: M is a Group 8 transition metal;L1, L2 and L3 are neutral electron donor ligands;n is 0 or 1, such that L3 may or may not be present;m is 0, 1, or 2;X1 and X2 are each independently anionic ligands; and R1 and R2 are independently selected from hydrogen, hydrocarbyl, substituted hydrocarbyl, heteroatom-containing hydrocarbyl, substituted heteroatom-containing hydrocarbyl, and functional groups, wherein any two or more of X1, X2, L1, L2, L3, R1, and R2 can be taken together to form a cyclic group, and further wherein any one or more of X1, X2, L1, L2, L3, R1, and R2 may be attached to a support. 16. The process of claim 13 wherein at least about 97 mole percent of R1 and R3 are straight- or branched-chain, saturated hydrocarbyl groups and at least about 97 mole percent of R2 and R4 are hydrogen. 17. The process of claim 13 wherein at least about 98 mole percent of R1 and R3 are straight- or branched-chain, saturated hydrocarbyl groups and at least about 98 mole percent of R2 and R4 are hydrogen. 18. The process of claim 13 wherein at least about 99 mole percent of R1 and R3 are straight- or branched-chain, saturated hydrocarbyl groups and at least about 99 mole percent of R2 and R4 are hydrogen. 19. The process of claim 13 wherein less than about six mole percent of R1 and R3 contain alkyl branching. 20. The process of claim 13 wherein less than about six mole percent of R5 contains alkyl branching. 21. A composition for use in recovering oil from an oil-bearing formation comprising: (i) water;(ii) at least one surfactant comprising a sulfonated derivative of one or more internal olefins, said sulfonated derivative being obtained by sulfonating a composition comprising internal olefins of the formula: R1R2C═CR3R4 wherein R1, R2, R3 and R4 are the same or different and are hydrogen or straight- or branched-chain, saturated hydrocarbyl groups and the total number of carbon atoms of R1, R2, R3 and R4 is 6 to 44 with the proviso that at least about 96 mole percent of R1 and R3 are straight- or branched-chain, saturated hydrocarbyl groups and at least about 96 mole percent of R2 and R4 are hydrogen; and (iii) optionally one or more additional components. 22. The composition of claim 21 wherein the internal olefins are obtained by the metathesis of one or more alpha-olefins in the presence of metathesis catalyst. 23. The composition of claim 22 wherein the alpha-olefins correspond to the formula: R5HC═CH2 wherein R5 is a straight-chain or branched-chain C3-C22 hydrocarbyl group. 24. The composition of claim 23 wherein less than about six mole percent of R5 contains alkyl branching. 25. The composition of claim 22 wherein the metathesis catalyst is selected from the group consisting of Grubbs-type catalysts, Schrock catalysts, Hoveyda-Grubbs, tungsten catalysts, molybdenum catalysts and rhenium catalysts. 26. The composition of claim 22 wherein the metathesis catalyst is of the formula: wherein: M is a Group 8 transition metal;L1, L2 and L3 are neutral electron donor ligands;n is 0 or 1, such that L3 may or may not be present;m is 0, 1, or 2;X1 and X2 are each independently anionic ligands; and R1 and R2 are independently selected from hydrogen, hydrocarbyl, substituted hydrocarbyl, heteroatom-containing hydrocarbyl, substituted heteroatom-containing hydrocarbyl, and functional groups, wherein any two or more of X1, X2, L1, L2, L3, R1, and R2 can be taken together to form a cyclic group, and further wherein any one or more of X1, X2, L1, L2, L3, R1, and R2 may be attached to a support. 27. The composition of claim 21 wherein at least about 97 mole percent of R1 and R3 are straight- or branched-chain, saturated hydrocarbyl groups and at least about 97 mole percent of R2 and R4 are hydrogen. 28. The composition of claim 21 wherein at least about 98 mole percent of R1 and R3 are straight- or branched-chain, saturated hydrocarbyl groups and at least about 98 mole percent of R2 and R4 are hydrogen. 29. The composition of claim 21 wherein at least about 99 mole percent of R1 and R3 are straight- or branched-chain, saturated hydrocarbyl groups and at least about 99 mole percent of R2 and R4 are hydrogen. 30. The composition of claim 21 wherein less than about six mole percent of R1 and R3 contain alkyl branching. 31. The composition of claim 21 wherein the optional additional components are selected from the group consisting of co-surfactant, solvent, polymer and alkali. 32. A composition for use in the recovery of oil from an oil-bearing formation, the composition comprising: (i) water:(ii) at least one surfactant comprising a sulfonated derivative of one or more internal olefins wherein said internal olefins are obtained via the metathesis of one or more alpha-olefins in the presence of a metathesis catalyst comprising a Group 8 transition metal complex; and(iii) optionally one or more additional components. 33. A process for recovering oil from an oil-bearing formation which comprises introducing into said formation an aqueous composition comprising at least one surfactant comprising a sulfonated derivative of one or more internal olefins wherein said internal olefins are obtained via the metathesis of one or more alpha-olefins in the presence of a metathesis catalyst comprising a Group 8 transition metal complex. 34. A sulfonated derivative of one or more internal olefins wherein said internal olefins correspond to the formula: R1R2C═CR3R4 wherein R1, R2, R3 and R4 are the same or different and are hydrogen or straight- or branched-chain, saturated hydrocarbyl groups and the total number of carbon atoms of R1, R2, R3 and R4 is 6 to 44, with the proviso that at least about 96 mole percent of R1 and R3 are straight- or branched-chain, saturated hydrocarbyl groups and at least about 96 mole percent of R2 and R4 are hydrogen in the internal olefins. 35. A sulfonated derivative of one or more internal olefins wherein said internal olefins are obtained via the metathesis of one or more alpha-olefins in the presence of a metathesis catalyst comprising a Group 8 transition metal complex. 36. The sulfonated derivative of claim 35 wherein the metathesis catalyst is of the formula: wherein: M is a Group 8 transition metal;L1, L2 and L3 are neutral electron donor ligands;n is 0 or 1, such that L3 may or may not be present;m is 0, 1, or 2;X1 and X2 are each independently anionic ligands; and R1 and R2 are independently selected from hydrogen, hydrocarbyl, substituted hydrocarbyl, heteroatom-containing hydrocarbyl, substituted heteroatom-containing hydrocarbyl, and functional groups, wherein any two or more of X1, X2, L1, L2, L3, R1, and R2 can be taken together to form a cyclic group, and further wherein any one or more of X1, X2, L1, L2, L3, R1, and R2 may be attached to a support. 37. The sulfonated derivative of claim 36 wherein L1 is a carbene ligand having the following structure: wherein X and Y are heteroatoms selected from the group consisting of N, O, S, and P;p is zero when X is O or S, q is zero when Y is O or S;p is 1 when X is N or P;q is 1 when Y is N or P;Q1, Q2, Q3, and Q4 are linkers individually selected from the group consisting of —(CO)—, hydrocarbylene, substituted hydrocarbylene, heteroatom-containing hydrocarbylene, and substituted heteroatom-containing hydrocarbylene, wherein two or more substituents on adjacent atoms within Q1, Q2, Q3, and Q4 are optionally linked to form an additional cyclic group;w, x, y, and z are independently zero or 1;R3, R3A, R4, and R4A are independently selected from the group consisting of hydrogen, hydrocarbyl, substituted hydrocarbyl, heteroatom-containing hydrocarbyl, and substituted heteroatom-containing hydrocarbyl; andand any two or more of X1, X2, L1, L2, L3, R1, R2, R3, R3A, R4, and R4A optionally together form a cyclic group, and any one or more of X1, X2, L1, L2, L3, R1, R2, R3, R3A, R4, and R4A optionally may be attached to a support.