Olefinic ester compositions and their use in stimulating hydrocarbon production from a subterranean formation
View Patent ↗Compositions for stimulating hydrocarbon production from a subterranean formation are generally disclosed. In some embodiments, such compositions include olefinic ester compounds, such as alkyl esters of C10-18 unsaturated fatty acids. In some embodiments, the olefinic ester compounds are derived from a natural oil or a natural oil derivative, for example, by catalytic olefin metathesis. Uses of such compounds, such as in oil- and gas-production methods are also generally disclosed.
1. A composition for stimulating an oil or gas well, the composition comprising olefinic ester compounds and a terpene, wherein the olefinic ester compounds comprise methyl 9-decenoate, methyl 9-dodecenoate, or combinations thereof, and wherein the composition is an oil-in-water emulsion having a continuous phase comprising water and a dispersed phase comprising the olefinic ester compounds, and wherein methyl 9-decenoate, methyl 9-dodecenoate, or combinations thereof make up at least 50 percent by weight of the dispersed phase.
2. The composition of claim 1 , further comprising a surfactant.
3. The composition of claim 1 , wherein the terpene is selected from the group consisting of linacool, geraniol, nopol, α-terpineol, β-terpineol, γ-terpineol, 4-terpineol, menthol, eucapyptol, menthone, d-limonene, terpinolene, α-ocimene, β-ocimene, α-terpinene, β-terpinene, γ-terpinene, δ-terpinene, α-pinene, β-pinene, citronellene, turpentine, and any combinations thereof.
4. The composition of claim 1 , further comprising a carrier, an additional solvent, a co-solvents, a surfactant, a co-surfactant, an emulsifier, a natural or synthetic colorant, a natural or synthetic fragrance, an antioxidant, a corrosion inhibitor, or an antimicrobial agent, a freezing point depressant, or any combinations thereof.
5. The composition of claim 2 , wherein the surfactant is selected from the group consisting of an anionic surfactant, a cationic surfactant, a non-ionic surfactant, and combinations thereof.
6. The composition of claim 5 , wherein the surfactant is selected from the group consisting of an anionic surfactant, a non-ionic surfactant, and combinations thereof.
7. The composition of claim 6 , wherein the surfactant is a non-ionic surfactant.
8. The composition of claim 7 , wherein the non-ionic surfactant comprises one or more alkoxylated fatty acids.
9. The composition of claim 7 , wherein the non-ionic surfactant has a hydrophilic-lipophilic balance (HLB) ranging from 4 to 10, where HLB is determined by Griffin's Method.
10. The composition of claim 1 , wherein the olefinic ester compounds comprise methyl 9-decenoate.
11. The composition of claim 1 , wherein the olefinic ester compounds comprise methyl 9-dodecenoate.
12. A method of stimulating an oil or gas well, comprising:
providing a composition of claim 1 ; and
introducing the composition into an oil or gas well.