Olefinic ester compositions and their use in stimulating hydrocarbon production from a subterranean formation
Compositions for stimulating hydrocarbon production from a subterranean formation are generally disclosed. In some embodiments, such compositions include olefinic ester compounds. 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 method of stimulating an oil or gas well, comprising:
providing a composition comprising olefinic ester compounds, terpenes and saturated ester compounds, wherein the saturated ester compounds are C 1-6 alkanol esters of C 10-18 saturated fatty acids, wherein the olefinic ester compounds comprise methyl 9-decenoate, methyl 9-dodecenoate, or combinations thereof, 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 the methyl 9-decenoate, methyl 9-dodecenoate, or combinations thereof, make up at least 50 percent by weight of the dispersed phase; and
introducing the composition into an oil or gas well.
2. The method of claim 1 , wherein the oil or gas well is a gas well for shale gas or tight gas.
3. The method of claim 1 , wherein the introducing comprises injecting the composition into the oil or gas well under pressure.
4. The method of claim 1 , further comprising a surfactant.
5. The method of claim 1 , wherein the terpenes are selected from the group consisting of linalool, 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.
6. The method of claim 5 , wherein the terpene is d-limonene.
7. The method of claim 6 , wherein the saturated ester compounds are C 1-6 alkanol esters of fatty acids selected from the group consisting of lauric acid, myristic acid, palmitic acid, stearic acid, and combinations thereof.
8. The method of claim 7 , wherein the saturated ester compounds are methyl esters of fatty acids selected from the group consisting of lauric acid, myristic acid, palmitic acid, stearic acid, and combinations thereof.
9. The method of claim 8 , wherein the saturated ester compounds comprise methyl laurate.
10. The method of claim 1 , wherein the saturated ester compounds are C 1-6 alkanol esters of fatty acids selected from the group consisting of capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, and combinations thereof.
11. The method of claim 10 , wherein the saturated ester compounds are methyl esters of fatty acids selected from the group consisting of lauric acid, myristic acid, palmitic acid, stearic acid, and combinations thereof.
12. The method of claim 11 , wherein the saturated ester compounds comprise methyl laurate.