GB1560346A - Use of ethers of hydroxypropiosulphonate salts in recovering oil from oil-bearing formations - Google Patents
Use of ethers of hydroxypropiosulphonate salts in recovering oil from oil-bearing formations Download PDFInfo
- Publication number
- GB1560346A GB1560346A GB23040/77A GB2304077A GB1560346A GB 1560346 A GB1560346 A GB 1560346A GB 23040/77 A GB23040/77 A GB 23040/77A GB 2304077 A GB2304077 A GB 2304077A GB 1560346 A GB1560346 A GB 1560346A
- Authority
- GB
- United Kingdom
- Prior art keywords
- percent
- oil
- grams
- sulfonate
- millimols
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 150000003839 salts Chemical class 0.000 title claims description 47
- 230000015572 biosynthetic process Effects 0.000 title claims description 24
- 238000005755 formation reaction Methods 0.000 title description 19
- 150000002170 ethers Chemical class 0.000 title description 2
- 239000000203 mixture Substances 0.000 claims description 34
- 238000000034 method Methods 0.000 claims description 33
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 claims description 19
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims description 18
- 239000003208 petroleum Substances 0.000 claims description 17
- 239000000243 solution Substances 0.000 claims description 17
- 239000004094 surface-active agent Substances 0.000 claims description 17
- 150000001298 alcohols Chemical class 0.000 claims description 12
- 229910001424 calcium ion Inorganic materials 0.000 claims description 12
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 claims description 12
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 claims description 11
- 125000004432 carbon atom Chemical group C* 0.000 claims description 11
- 239000011780 sodium chloride Substances 0.000 claims description 11
- 150000003871 sulfonates Chemical class 0.000 claims description 11
- -1 ethoxy alcohol alkoxide Chemical class 0.000 claims description 10
- 239000000126 substance Substances 0.000 claims description 10
- 229910052783 alkali metal Inorganic materials 0.000 claims description 9
- 125000000217 alkyl group Chemical group 0.000 claims description 9
- 230000000052 comparative effect Effects 0.000 claims description 9
- 229920001515 polyalkylene glycol Polymers 0.000 claims description 9
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 8
- 150000005215 alkyl ethers Chemical class 0.000 claims description 8
- 239000007864 aqueous solution Substances 0.000 claims description 8
- 150000001875 compounds Chemical class 0.000 claims description 8
- FSSPGSAQUIYDCN-UHFFFAOYSA-N 1,3-Propane sultone Chemical compound O=S1(=O)CCCO1 FSSPGSAQUIYDCN-UHFFFAOYSA-N 0.000 claims description 7
- 239000011149 active material Substances 0.000 claims description 7
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 6
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 6
- ZSIAUFGUXNUGDI-UHFFFAOYSA-N hexan-1-ol Chemical compound CCCCCCO ZSIAUFGUXNUGDI-UHFFFAOYSA-N 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 238000011084 recovery Methods 0.000 claims description 6
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 5
- 150000001340 alkali metals Chemical class 0.000 claims description 5
- 150000001412 amines Chemical class 0.000 claims description 5
- 238000012935 Averaging Methods 0.000 claims description 4
- WQDUMFSSJAZKTM-UHFFFAOYSA-N Sodium methoxide Chemical compound [Na+].[O-]C WQDUMFSSJAZKTM-UHFFFAOYSA-N 0.000 claims description 4
- WKVSEJXEIVEFJT-UHFFFAOYSA-N bromo ethanesulfonate Chemical compound CCS(=O)(=O)OBr WKVSEJXEIVEFJT-UHFFFAOYSA-N 0.000 claims description 4
- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 0.000 claims description 4
- 229920000642 polymer Polymers 0.000 claims description 4
- 235000017557 sodium bicarbonate Nutrition 0.000 claims description 4
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- RSJKGSCJYJTIGS-UHFFFAOYSA-N undecane Chemical compound CCCCCCCCCCC RSJKGSCJYJTIGS-UHFFFAOYSA-N 0.000 claims description 4
- GZMAAYIALGURDQ-UHFFFAOYSA-N 2-(2-hexoxyethoxy)ethanol Chemical group CCCCCCOCCOCCO GZMAAYIALGURDQ-UHFFFAOYSA-N 0.000 claims description 3
- 239000004215 Carbon black (E152) Substances 0.000 claims description 3
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical group C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 claims description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical group C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 3
- 229930195733 hydrocarbon Natural products 0.000 claims description 3
- 150000002430 hydrocarbons Chemical class 0.000 claims description 3
- 229910052708 sodium Inorganic materials 0.000 claims description 3
- 239000011734 sodium Substances 0.000 claims description 3
- 235000017550 sodium carbonate Nutrition 0.000 claims description 3
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 3
- 239000012470 diluted sample Substances 0.000 claims description 2
- CCIVGXIOQKPBKL-UHFFFAOYSA-M ethanesulfonate Chemical compound CCS([O-])(=O)=O CCIVGXIOQKPBKL-UHFFFAOYSA-M 0.000 claims description 2
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 claims description 2
- 229920001282 polysaccharide Polymers 0.000 claims description 2
- 239000011541 reaction mixture Substances 0.000 claims description 2
- 238000010626 work up procedure Methods 0.000 claims description 2
- JXLHNMVSKXFWAO-UHFFFAOYSA-N azane;7-fluoro-2,1,3-benzoxadiazole-4-sulfonic acid Chemical compound N.OS(=O)(=O)C1=CC=C(F)C2=NON=C12 JXLHNMVSKXFWAO-UHFFFAOYSA-N 0.000 claims 1
- 239000003921 oil Substances 0.000 description 20
- 239000012267 brine Substances 0.000 description 10
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 10
- 239000000047 product Substances 0.000 description 7
- 125000002947 alkylene group Chemical group 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 229910001420 alkaline earth metal ion Inorganic materials 0.000 description 3
- 239000012736 aqueous medium Substances 0.000 description 3
- 239000012043 crude product Substances 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- 229910001508 alkali metal halide Inorganic materials 0.000 description 2
- 150000008045 alkali metal halides Chemical class 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- 150000003138 primary alcohols Chemical class 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- XBDQKXXYIPTUBI-UHFFFAOYSA-N Propionic acid Chemical class CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 229910001413 alkali metal ion Inorganic materials 0.000 description 1
- 150000001346 alkyl aryl ethers Chemical class 0.000 description 1
- 150000004996 alkyl benzenes Chemical class 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- CCIVGXIOQKPBKL-UHFFFAOYSA-N ethanesulfonic acid Chemical class CCS(O)(=O)=O CCIVGXIOQKPBKL-UHFFFAOYSA-N 0.000 description 1
- 238000007046 ethoxylation reaction Methods 0.000 description 1
- QUPDWYMUPZLYJZ-UHFFFAOYSA-N ethyl Chemical class C[CH2] QUPDWYMUPZLYJZ-UHFFFAOYSA-N 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 150000004676 glycans Chemical class 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000002198 insoluble material Substances 0.000 description 1
- 229910001425 magnesium ion Inorganic materials 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- PSZYNBSKGUBXEH-UHFFFAOYSA-N naphthalene-1-sulfonic acid Chemical class C1=CC=C2C(S(=O)(=O)O)=CC=CC2=C1 PSZYNBSKGUBXEH-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 229920001281 polyalkylene Polymers 0.000 description 1
- 239000005017 polysaccharide Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C309/00—Sulfonic acids; Halides, esters, or anhydrides thereof
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F1/00—Compounds containing elements of Groups 1 or 11 of the Periodic Table
- C07F1/005—Compounds containing elements of Groups 1 or 11 of the Periodic Table without C-Metal linkages
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/58—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids
- C09K8/584—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids characterised by the use of specific surfactants
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Lubricants (AREA)
- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US69146776A | 1976-06-01 | 1976-06-01 | |
| US72862776A | 1976-10-01 | 1976-10-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1560346A true GB1560346A (en) | 1980-02-06 |
Family
ID=27104789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB23040/77A Expired GB1560346A (en) | 1976-06-01 | 1977-05-31 | Use of ethers of hydroxypropiosulphonate salts in recovering oil from oil-bearing formations |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS52147583A (es) |
| AR (1) | AR214077A1 (es) |
| CA (1) | CA1075453A (es) |
| DE (1) | DE2724442A1 (es) |
| FR (1) | FR2353527A1 (es) |
| GB (1) | GB1560346A (es) |
| MX (1) | MX146299A (es) |
| NL (1) | NL7705836A (es) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4842776A (en) * | 1986-10-24 | 1989-06-27 | Hoechst Aktiengesellschaft | Styrylaryloxy ether sulfonates, a process for their preparation and their use in the recovery of crude oil |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0064384B1 (en) * | 1981-04-30 | 1986-07-23 | Mobil Oil Corporation | Alkoxypolyethoxypropane sulfonates, process for their preparation and method for their use in enhanced oil recovery |
| US4468335A (en) * | 1981-04-30 | 1984-08-28 | Mobil Oil Corporation | Branched alkylpolyethoxypropane sulfonates and their use in enhanced oil recovery |
| DE3433593A1 (de) * | 1984-09-13 | 1986-03-20 | Henkel KGaA, 4000 Düsseldorf | Verwendung von ethersulfonaten als schaumarme netzmittel in waessrigen, sauren und alkalischen technischen behandlungsmitteln |
| DE3622439A1 (de) * | 1986-07-04 | 1988-01-07 | Henkel Kgaa | Haarbehandlungsmittel |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5441761B2 (es) * | 1972-06-15 | 1979-12-10 |
-
1977
- 1977-04-28 CA CA277,256A patent/CA1075453A/en not_active Expired
- 1977-05-26 NL NL7705836A patent/NL7705836A/xx not_active Application Discontinuation
- 1977-05-31 GB GB23040/77A patent/GB1560346A/en not_active Expired
- 1977-05-31 DE DE19772724442 patent/DE2724442A1/de not_active Ceased
- 1977-05-31 JP JP6286877A patent/JPS52147583A/ja active Granted
- 1977-06-01 AR AR267906A patent/AR214077A1/es active
- 1977-06-01 MX MX169285A patent/MX146299A/es unknown
- 1977-06-01 FR FR7716705A patent/FR2353527A1/fr active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4842776A (en) * | 1986-10-24 | 1989-06-27 | Hoechst Aktiengesellschaft | Styrylaryloxy ether sulfonates, a process for their preparation and their use in the recovery of crude oil |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2724442A1 (de) | 1977-12-08 |
| JPS566477B2 (es) | 1981-02-12 |
| CA1075453A (en) | 1980-04-15 |
| JPS52147583A (en) | 1977-12-08 |
| MX146299A (es) | 1982-06-03 |
| NL7705836A (nl) | 1977-12-05 |
| FR2353527A1 (fr) | 1977-12-30 |
| AR214077A1 (es) | 1979-04-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3943160A (en) | Heat-stable calcium-compatible waterflood surfactant | |
| EP0003183B1 (en) | Propoxylated ethoxylated surfactants and method of recovering oil therewith | |
| US3890239A (en) | Surfactant compositions useful in oil recovery processes | |
| Bruice et al. | Nucleophilic micelles. II. Effect on the rate of solvolysis of neutral, positively, and negatively charged esters of varied chain length when incorporated into nonfunctional and functional micelles of neutral, positive, and negative charge | |
| US7811473B2 (en) | Branched surfactant having fluoroalkyl group and hydrocarbon group | |
| US4439345A (en) | Demulsification of a crude oil middle phase emulsion | |
| US9988346B2 (en) | Large hydrophobe surfactants | |
| US4643253A (en) | Oil recovery process | |
| GB1560346A (en) | Use of ethers of hydroxypropiosulphonate salts in recovering oil from oil-bearing formations | |
| CA1316684C (en) | Process for secondary oil recovery utilizing propoxylated ethoxylated surfactants in seawater | |
| US4436672A (en) | Oil recovery method utilizing glyceryl ether sulfonates | |
| GB1579167A (en) | Use of alkyl glycidyl ether sulphonates in the recovery of oil from oil-bearing formations | |
| US4370238A (en) | Process for drying surfactant-containing crude oil | |
| CA2190467A1 (en) | Fluoroalkylethoxylate compositions having enhanced water solubility | |
| US4446079A (en) | Low cost, brine tolerant sulfonate and sulfate surfactants having 1,3-dihydrocarboxy-2-propyl hydrophobic tails | |
| EP0064384A1 (en) | Alkoxypolyethoxypropane sulfonates, process for their preparation and method for their use in enhanced oil recovery | |
| CA1315285C (en) | Ether phosphonate surfactants having branched hydrophobic tails and their use in an enhanced oil recovery process | |
| CN104024368B (zh) | 三(2‑羟基苯基)甲烷衍生物用于三级矿物油生产的用途 | |
| CA1242574A (en) | Process for preparing an alkyl aryl sulphonate concentrate composition | |
| US4970007A (en) | Aqueous surfactant mixtures, and the use thereof in the recovery of crude oil | |
| US4442043A (en) | Oil recovery method utilizing a dicyclopentadiene derived ethoxysulfonate | |
| RU2056410C1 (ru) | Сульфокислотные производные в качестве поверхностно-активного вещества для извлечения масла при химическом затоплении нефтяной скважины морской водой | |
| US4208280A (en) | Extraction method | |
| CA1165660A (en) | Surface active compositions | |
| US4836283A (en) | Divalent ion tolerant aromatic sulfonates |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |