(WO2019213055) Compositions and methods for paraffin liquefaction and enhanced oil recovery in oil wells and associated equipment 机翻标题: 暂无翻译,请尝试点击翻译按钮。

源语言标题
(WO2019213055) Compositions and methods for paraffin liquefaction and enhanced oil recovery in oil wells and associated equipment
公开号/公开日
WO2019/213055 / 2019-11-07
申请号/申请日
WOUS2019/029870 / 2019-04-30
发明人
FARMER SEANALIBEK KENNERRIS ANTHONYDIXON TYLERKARATHUR KARTHIK;
申请人
LOCUS OIL IP;
主分类号
IPC分类号
C09K-008/58 C09K-008/582 C09K-008/584 E21B-043/25
摘要
(WO2019/213055) The subject invention provides compositions comprising solvents and surfactants, as well as their use in improving oil and/or gas production. In some embodiments, the compositions comprise chemical or synthetic solvents and/or surfactants. In other embodiments, the compositions comprise biological components, such as microorganisms and/or their growth by-products. The subject invention can be used to dissolve, disperse and/or emulsify paraffin precipitates and/or deposits; prevent and/or inhibit paraffin deposition; remove rust deposits and prevent corrosion associated therewith; inhibit bacterial growth and/or biofilm formation; and to enhance oil recovery.
机翻摘要
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地址
代理人
(WO2019213055) SALIWANCHIK, David, R. et al. ([US])
代理机构
;
优先权号
2018US-62664613 2018US-62682462 2018US-62691098 2018US-62719734 2018US-62743815 2019US-62805539
主权利要求
(WO2019/213055) CLAIMS We claim: 1. A composition for use in removing a contaminant from a subterranean formation, an oil and/or gas well, a wellbore and/or equipment associated therewith, and for enhancing oil recovery, the composition comprising one or more solvents and one or more surfactants. 2. The composition of claim 1 , wherein the one or more solvents and the one or more surfactants are produced by chemical purification, isolation and/or synthesis. 3. The composition of claim 1 , wherein the one or more solvents are selected from terpenoids, terpenes, acetates, alcohols, ionic liquids, aliphatic and/or aromatic hydrocarbons, ketones, acetic acid, kerosene, gasoline, diesel, benzene, ethyl benzenes, propyl benzenes, butyl benzenes, toluene, ethyl toluenes, xylene, pentane, alkylene amines, dioxane, carbon disulfide, mesitylene, cumene, cymenes, saturated aliphatic and/or alicyclic hydrocarbons, naphtha, naphthenes, cyclohexane, decalin, tetralin, heptane, octane, cyclooctane, isooctane, cycloheptane, turpentine, carbon tetrachloride, ether alcohol, pinene, dialkyl ether and combinations thereof. 4. The composition of claim 1, comprising 5% to 10% surfactant, wherein the surfactant is an anionic, cationic, zwitterionic or nonionic surfactant. 5. A composition for use in removing a contaminant from a subterranean formation, an oil and/or gas well, a wellbore and/or equipment associated therewith, the composition comprising   one or more solvents,   one or more surfactants,   a first yeast fermentation product,   one or more chelators, and, optionally,   one or more ammonium salts and/or co-surfactants,   wherein the one or more surfactants are biosurfactants, and the one or more solvents and one or more biosurfactants are not produced by the yeast of the first yeast fermentation product. 6. The composition of claim 5, wherein the yeast fermentation product comprises a cultivated yeast selected from Wickerhamomyces anomahts, Starmerella bomhicola and Meyerozyma giiil!iermondii , and/or a growth by-product thereof. 7. The composition of claim 6, wherein the yeast is cultivated on a solid or semi-solid substrate selected from corn flour, chickpeas, soybeans and rice. 8. The composition of claim 5, wherein the one or more solvents are selected from terpenes, terpenoids, non-polar aromatic solvents, acetates, alcohols, and ionic or semi-ionic liquids. 9. The composition of claim 8, wherein the one or more solvents comprise acetates selected from isoamyl acetate and primary amyl acetate. 10. The composition of claim 8, wherein the one or more solvents comprise terpenes and/or terpenoids selected from d-limonene, dipentene, and turpentine. 11. The composition of claim 8, wherein the one or more solvents comprise isopropyl alcohol. 12. The composition of claim 5, wherein the one or more optional ammonium salts comprise ammonium hydroxide and/or monoammonium phosphate. 13. The composition of claim 5, wherein the one or more chelators are selected from EDTA, citric acid, sodium citrate, and a mixture thereof. 14. The composition of claim 5, wherein the one or more optional co-surfactants comprise monoammonium phosphate, a mannosylerythritol lipid and/or an esterified fatty acid compound. 15. The composition of claim 5, wherein the one or more biosurfactants are selected from glycolipids, lipopeptides, fatty acid ester compounds, flavolipids, phospholipids, high-molecular- weight biopolymers, lipoproteins, lipopolysaccharide-protein complexes, and/or polysaccharide- protein-fatty acid complexes. 16. The composition of claim 15, comprising glycolipids selected from rhamnolipids, rhamnose- d-phospholipids, trehalose lipids, trehalose dimycolates, trehalose monomycolates, mannosylerythritol lipids, cellobiose lipids, ustilagic acid, lactonic sophorolipids, and acidic sophorolipids. 17. The composition of claim 15, comprising lipopeptides selected from surfactin, iturin, fengyein, arthrofactin, viscosin, amphisin, syringomycin, and/or lichenysin. 18. The composition of claim 15, wherein the one or more biosurfactants are fatty acid ester compounds having the following chemical formula: o   R1YIY2CZR2Y3Y4 wherein   RI=C6to C saturated or unsaturated hydrocarbon, or an epoxide, or cyclopropane thereof   Yi=H, C C5hydrocarbon, or hydroxyl at any position along R]  Y2=H, C C5hydrocarbon, or hydroxyl at any position along R,   Y3=H, C C5hydrocarbon, or hydroxyl at any position along R2  Y4=H, C C5hydrocarbon, or hydroxyl at any position along R2  R2=C]-C]0saturated or unsaturated, branched or unbranched, hydrocarbon. 19. The composition of claim 18, wherein the fatty acid ester compounds comprise oleic fatty acid ethyl esters and/or oleic fatty acid methyl esters. 20. The composition of claim 5, wherein the biosurfactants are in the form of a second yeast fermentation product that comprises fermentation broth resulting from submerged cultivation of biosurfactant-producing yeast,   wherein the fermentation broth comprises yeast cells, biosurfactants and yeast growth by products, and   wherein the yeast of the second yeast fermentation product is not the same as the yeast in the first yeast fermentation product. 21. The composition of claim 21, wherein the biosurfactant-producing yeast is Wickerhamomyces anomahis , Slarmerella bombicola, or Meyerozyma giiillierrnondii.   22 The composition of claim 5, wherein the biosurfactants are in purified form. 23. The composition of claim 5, further comprising a carrier, said carrier comprising water, oil and/or brine fluids. 24. The composition of claim 5, used for enhancing oil recovery. 25. A composition for use in removing a contaminant from a subterranean formation, an oil and/or gas well, a wellbore and/or equipment associated therewith, the composition comprising:   water,   a first yeast fermentation product comprising cultivated Wickerhamomyces anomalus and/or growth by-products thereof;   one or more biosurfactants selected from glycolipids, lipopeptides and esterified fatty acid compounds:   one or more solvents selected from turpentine, dipentene, d-limonene, isoamyl acetate, and/or primary amyl acetate;   sodium citrate; and, optionally,   ammonium hydroxide and/or monoammonium hydroxide. 26. The composition of claim 25, comprising:   10 ml/L to 50 ml/L biosurfactants,   10 ml/L to 50 ml/L dipentene,   10 ml/L to 50 ml/L isoamyl acetate,   1 g/L to 10 g/L sodium citrate, and   1 g/L to 10 g/L monoammonium phosphate. 27. A method for improving oil and/or gas production wherein a composition of claims 1 to 25 is applied to a subterranean formation, an oil and/or gas well, a wellbore and/or equipment associated therewith,   wherein the equipment comprises a pipe line, storage tank, casing, tubing, rod, and/or pump. 28. The method of claim 27, used to remove a contaminant from the formation, well, wellbore and/or equipment while enhancing oil recovery,   wherein the contaminant is a solid paraffin deposit and/or a paraffin precipitate,   wherein the deposit and/or precipitate comprises paraffin molecules having carbon chain lengths of 20 or greater, and wherein the composition dissolves and/or liquefies the contaminant. 29. The method of claim 27, used to disperse and/or emulsify a solid paraffin deposit and/or a paraffin precipitate into crude oil fluids,   wherein the deposit and/or precipitate comprises paraffin molecules having carbon chain lengths of 20 or greater. 30. The method of claim 27, used to inhibit crystallization of paraffin dispersed in crude oil. 31. The method of claim 27, used to prevent deposition of dispersed paraffin crystals onto surfaces of the subterranean formation, oil and/or gas well, wellbore and/or equipment. 32. The method of claim 27, used to reduce the viscosity of paraffinic crude oil. 33. The method of claim 27, used to reduce the pour point of paraffinic crude oil to about  -25°F/-32°C. 34. The method of claim 27, used to remove and/or dissolve scale deposits on surfaces of the subterranean formation, oil and/or gas well, wellbore and/or equipment. 35. The method of claim 34, wherein the scale deposits are clogging formation pore throats. 36. The method of claim 27, used to release rust from oilfield casings and related equipment and to protect against under-deposit rust-related corrosion of the equipment. 37. The method of claim 27, used to inhibit bacterial growth and disrupt biofilm formation on surfaces of the subterranean formation, oil and/or gas well, wellbore and/or equipment. 38. The method of claim 37, used to protect against microbial induced corrosion (MIC). 39. The method of claim 27, used to remediate formation skin damage, wherein the composition increases the permeability of near-wellbore formation by dissolving paraffin matrices in formation pores, and wherein the composition alters the wettability of the near-wellbore formation so that it is water- wet. 40. The method of claim 27, wherein the well is a mature well. 41. The method of claim 27, wherein the well is an offshore well. 42. The method of claim 27, used to supplement and/or enhance a second method of removing a contaminant and/or enhancing oil recovery, wherein the second method is an enzyme, microbial, chemical, thermal or mechanical method. 43. The method of claim 42, wherein the chemical method of removal comprises application of non-biological surfactants, condensates, solvents or combinations thereof, into an oil and/or gas well, wellbore, subterranean formation and/or piece of equipment. 44. The method of claim 42, wherein the thermal method of removal comprises application of steam, hot oil and/or hot water into an oil and/or gas well, wellbore, subterranean formation and/or piece of equipment. 45. The method of claim 27, wherein the method is used when oil is being produced or transported in a cold climate. 46. The method of claim 27, wherein the method is used in oil wells with high formation water salinity. 47. The method of claim 46, wherein the method is used in an oil well with formation water salinity of 250,000 ppm (total dissolved solids) or more. 48. The method of claim 27, wherein 200 to 1000 gallons of the composition is pumped into and out of a well with shut-in time of 24 hours or less. 49. The method of claim 27, wherein the composition is a composition of claims 1 -4. 50. The method of claim 27, wherein the composition is a composition of claims 5-22.   51 . The method of claim 27, wherein the composition is a composition of claims 23-25.
法律状态
PENDING
专利类型码
A1
国别省市代码
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