NO169190B - PROCEDURE FOR OIL EXTRACTION - Google Patents
PROCEDURE FOR OIL EXTRACTION Download PDFInfo
- Publication number
- NO169190B NO169190B NO842944A NO842944A NO169190B NO 169190 B NO169190 B NO 169190B NO 842944 A NO842944 A NO 842944A NO 842944 A NO842944 A NO 842944A NO 169190 B NO169190 B NO 169190B
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- Norway
- Prior art keywords
- oil
- water
- esters
- sulfocarboxylic
- surfactants
- Prior art date
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- 238000000034 method Methods 0.000 title claims description 13
- 238000000605 extraction Methods 0.000 title description 2
- 239000004094 surface-active agent Substances 0.000 claims description 19
- 150000002148 esters Chemical class 0.000 claims description 10
- 229910052708 sodium Inorganic materials 0.000 claims description 10
- 239000011734 sodium Substances 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 9
- 125000000217 alkyl group Chemical group 0.000 claims description 7
- 239000002253 acid Substances 0.000 claims description 5
- 150000007513 acids Chemical class 0.000 claims description 5
- -1 alkali metal cation Chemical class 0.000 claims description 5
- FLIACVVOZYBSBS-UHFFFAOYSA-N Methyl palmitate Chemical compound CCCCCCCCCCCCCCCC(=O)OC FLIACVVOZYBSBS-UHFFFAOYSA-N 0.000 claims description 4
- 125000004432 carbon atom Chemical group C* 0.000 claims description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 3
- 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 description 3
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims description 2
- 150000001342 alkaline earth metals Chemical class 0.000 claims description 2
- 125000000129 anionic group Chemical group 0.000 claims description 2
- 229910052783 alkali metal Inorganic materials 0.000 claims 1
- 239000007788 liquid Substances 0.000 claims 1
- 239000003921 oil Substances 0.000 description 20
- 235000019198 oils Nutrition 0.000 description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 18
- 229910001868 water Inorganic materials 0.000 description 18
- 150000003839 salts Chemical class 0.000 description 15
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 7
- 239000004530 micro-emulsion Substances 0.000 description 6
- 238000011084 recovery Methods 0.000 description 6
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- 229930195733 hydrocarbon Natural products 0.000 description 4
- 150000002430 hydrocarbons Chemical class 0.000 description 4
- WVDDGKGOMKODPV-UHFFFAOYSA-N Benzyl alcohol Chemical compound OCC1=CC=CC=C1 WVDDGKGOMKODPV-UHFFFAOYSA-N 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 3
- 239000004215 Carbon black (E152) Substances 0.000 description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 3
- 239000003945 anionic surfactant Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 229910052791 calcium Inorganic materials 0.000 description 3
- 239000011575 calcium Substances 0.000 description 3
- 238000005755 formation reaction Methods 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 229910052749 magnesium Inorganic materials 0.000 description 3
- 239000011777 magnesium Substances 0.000 description 3
- 230000007928 solubilization Effects 0.000 description 3
- 238000005063 solubilization Methods 0.000 description 3
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound 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 description 2
- HPEUJPJOZXNMSJ-UHFFFAOYSA-N Methyl stearate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OC HPEUJPJOZXNMSJ-UHFFFAOYSA-N 0.000 description 2
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 2
- 150000001298 alcohols Chemical class 0.000 description 2
- 239000001110 calcium chloride Substances 0.000 description 2
- 235000011148 calcium chloride Nutrition 0.000 description 2
- 229910001628 calcium chloride Inorganic materials 0.000 description 2
- 150000001768 cations Chemical class 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 235000014113 dietary fatty acids Nutrition 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- MMXKVMNBHPAILY-UHFFFAOYSA-N ethyl laurate Chemical compound CCCCCCCCCCCC(=O)OCC MMXKVMNBHPAILY-UHFFFAOYSA-N 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
- 229930195729 fatty acid Natural products 0.000 description 2
- 150000004665 fatty acids Chemical class 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- UQDUPQYQJKYHQI-UHFFFAOYSA-N methyl laurate Chemical compound CCCCCCCCCCCC(=O)OC UQDUPQYQJKYHQI-UHFFFAOYSA-N 0.000 description 2
- 239000002736 nonionic surfactant Substances 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- BEKZXQKGTDVSKX-UHFFFAOYSA-N propyl hexadecanoate Chemical compound CCCCCCCCCCCCCCCC(=O)OCCC BEKZXQKGTDVSKX-UHFFFAOYSA-N 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 125000001273 sulfonato group Chemical class [O-]S(*)(=O)=O 0.000 description 2
- QMMJWQMCMRUYTG-UHFFFAOYSA-N 1,2,4,5-tetrachloro-3-(trifluoromethyl)benzene Chemical compound FC(F)(F)C1=C(Cl)C(Cl)=CC(Cl)=C1Cl QMMJWQMCMRUYTG-UHFFFAOYSA-N 0.000 description 1
- ODDSXTDNXBAVPQ-UHFFFAOYSA-N 1,2-dihydroxypropyl hexadecanoate Chemical compound CCCCCCCCCCCCCCCC(=O)OC(O)C(C)O ODDSXTDNXBAVPQ-UHFFFAOYSA-N 0.000 description 1
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 description 1
- ZVUNTIMPQCQCAQ-UHFFFAOYSA-N 2-dodecanoyloxyethyl dodecanoate Chemical compound CCCCCCCCCCCC(=O)OCCOC(=O)CCCCCCCCCCC ZVUNTIMPQCQCAQ-UHFFFAOYSA-N 0.000 description 1
- HIQIXEFWDLTDED-UHFFFAOYSA-N 4-hydroxy-1-piperidin-4-ylpyrrolidin-2-one Chemical compound O=C1CC(O)CN1C1CCNCC1 HIQIXEFWDLTDED-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 235000019482 Palm oil Nutrition 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 235000019484 Rapeseed oil Nutrition 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 125000002723 alicyclic group Chemical group 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 150000008055 alkyl aryl sulfonates Chemical class 0.000 description 1
- 150000008051 alkyl sulfates Chemical class 0.000 description 1
- 229940045714 alkyl sulfonate alkylating agent Drugs 0.000 description 1
- 150000008052 alkyl sulfonates Chemical class 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 235000019445 benzyl alcohol Nutrition 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000003240 coconut oil Substances 0.000 description 1
- 235000019864 coconut oil Nutrition 0.000 description 1
- HPXRVTGHNJAIIH-UHFFFAOYSA-N cyclohexanol Chemical compound OC1CCCCC1 HPXRVTGHNJAIIH-UHFFFAOYSA-N 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- CAMHHLOGFDZBBG-UHFFFAOYSA-N epoxidized methyl oleate Natural products CCCCCCCCC1OC1CCCCCCCC(=O)OC CAMHHLOGFDZBBG-UHFFFAOYSA-N 0.000 description 1
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 1
- 239000003925 fat Substances 0.000 description 1
- 235000019197 fats Nutrition 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- KWIUHFFTVRNATP-UHFFFAOYSA-N glycine betaine Chemical group C[N+](C)(C)CC([O-])=O KWIUHFFTVRNATP-UHFFFAOYSA-N 0.000 description 1
- 125000003187 heptyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- 125000001972 isopentyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 125000000740 n-pentyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 239000002540 palm oil Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000003760 tallow Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- GSEJCLTVZPLZKY-UHFFFAOYSA-O triethanolammonium Chemical compound OCC[NH+](CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-O 0.000 description 1
- ZMANZCXQSJIPKH-UHFFFAOYSA-O triethylammonium ion Chemical compound CC[NH+](CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-O 0.000 description 1
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 229920003169 water-soluble polymer Polymers 0.000 description 1
Classifications
-
- 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)
- Oil, Petroleum & Natural Gas (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
- Fats And Perfumes (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Foreliggende oppfinnelse vedrører en fremgangsmåte for utvinning av olje fra underjordiske reservoarer, og mer spesielt en fremgangsmåte for utvinning av olje ved hjelp av overflateaktive midler. Mer spesielt angår denne oppfinnelse en fremgangsmåte for utvinning av olje ved anvendelse av ett eller flere anioniske overflateaktive midler fra den gruppe som består av esterne av ct-sulf okarboksylsyrer. Denne gruppe av overf late-aktive midler gir fordeler ved å danne et sett av produkter som har høy effekt innen et bredt område av saltkonsentrasjoner. I virkeligheten er visse forbindelser i nevnte gruppe stabile i formasjoner som inneholder vann med høye saltinnhold, spesielt med høye konsentrasjoner av toverdige ioner, så som kalsium eller -magnesium. The present invention relates to a method for extracting oil from underground reservoirs, and more particularly to a method for extracting oil using surfactants. More particularly, this invention relates to a method for extracting oil using one or more anionic surfactants from the group consisting of the esters of α-sulfocarboxylic acids. This group of surface-active agents offers advantages in forming a set of products that are highly effective over a wide range of salt concentrations. In fact, certain compounds in said group are stable in formations containing water with high salinity, especially with high concentrations of divalent ions, such as calcium or magnesium.
Ved oljeutvinning fra underjordiske felt er det vanligvis bare mulig å utvinne en liten fraksjon av oljen på stedet ved hjelp av de såkalte primære utvinningsmetoder, hvor man benytter fordelene ved de naturlige krefter som blir utviklet i feltet (trykk-frigjøring for fluider, ekspansjon av de oppløste gasser, ekspansjon av gasskuppelen, vanndriving etc.). Andelen av en slik utvinning er gjennomsnittlig 15 % av oljen på stedet. Det har følgelig vært anvendt en stor mangfoldighet av ytterligere teknikker for å øke oljeutvinningen. En av de.ytterligere utvinningsmetoder som generelt blir anvendt, er spyling med vann, hvilket nødvendiggjør vann-innsprøyting i reservoaret. Effekten av disse sistnevnte prosesser, spesielt effekten av den mik-roskopiske driving, kan forbedres ved å sette til vannet et overflateaktivt middel som vil frembringe en nedsettelse av grenseflatespenningen for vann/olje, og regulere kapillarkref-tene som er ansvarlig for innfanging av olje i porene på reservoar-bergartene. When extracting oil from underground fields, it is usually only possible to extract a small fraction of the oil on site using the so-called primary extraction methods, where one takes advantage of the natural forces that are developed in the field (pressure release for fluids, expansion of the dissolved gases, expansion of the gas dome, water drift etc.). The proportion of such recovery is on average 15% of the oil on site. Consequently, a great variety of additional techniques have been used to increase oil recovery. One of the additional recovery methods that is generally used is flushing with water, which necessitates water injection into the reservoir. The effect of these latter processes, especially the effect of the microscopic driving, can be improved by adding to the water a surface-active agent which will produce a reduction of the interfacial tension for water/oil, and regulate the capillary forces which are responsible for trapping oil in the pores of the reservoir rocks.
Det er blitt foreslått tallrike overflateaktive midler for å oppnå øket oljeutvinning, spesielt petroleumsulfonater, alkyl-sulfonater, alkylarylsulfonater, alkylsulfater, alkylarylsulfater, polyoksyetylalkyl- eller -alkylarylsulfater, alkylpyridin-salter, kvaternære ammoniumsalter, polyoksyetylalkoholer, polyoksyetylalkylfenoler, derivater av betainstrukturer etc. Numerous surfactants have been proposed to achieve increased oil recovery, especially petroleum sulfonates, alkyl sulfonates, alkyl aryl sulfonates, alkyl sulfates, alkyl aryl sulfates, polyoxyethyl alkyl or alkyl aryl sulfates, alkyl pyridine salts, quaternary ammonium salts, polyoxyethyl alcohols, polyoxyethyl alkylphenols, derivatives of betaine structures, etc.
Mange av disse overflateaktive midler er tilfredsstillende bare i noen få typer av formasjoner, spesielt slike hvis totale saltinnhold og konsentrasjon av toverdige ioner (spesielt kalsium og magnesium) er relativt lav, dvs. i alminnelighet lavere enn 5-10 g/l for det totale saltinnhold, med en konsentrasjon av toverdige ioner som er lavere enn 500 ppm. Many of these surfactants are satisfactory only in a few types of formations, especially those whose total salt content and concentration of divalent ions (especially calcium and magnesium) are relatively low, i.e. generally lower than 5-10 g/l for the total salt content, with a concentration of divalent ions lower than 500 ppm.
Den viktigste begrensning for anvendelse av de fleste av de overflateaktive midler kommer av deres tilbøyelighet til å bli utfelt i nærvær av høye saltkonsentrasjoner. Dessuten blir deres ytelse nedsatt i nærvær av salter, endog når konsentrasjo-nen av sistnevnte er vesentlig lavere enn den hvorved det fore-går utfelling, f.eks. mellom 20 og 30 g/l. The main limitation to the use of most of the surfactants comes from their tendency to precipitate in the presence of high salt concentrations. Moreover, their performance is reduced in the presence of salts, even when the concentration of the latter is substantially lower than that by which precipitation takes place, e.g. between 20 and 30 g/l.
Med midlere eller høye saltinnhold har det noen ganger vært anbefalt å anvende visse blandinger av anioniske og ikke-ioniske overflateaktive midler, men anvendelse av disse blandinger forårsaker visse problemer: slike som kommer av en selektiv ad-sorpsjon av ett av de to produkter, fortrinnsvis til det andre, og slike som har forbindelse med temperaturen i reservoaret, hvor løseligheten av det ikke-ioniske derivat avtar med temperaturen (uklarhetspunkt). With medium or high salt contents, it has sometimes been recommended to use certain mixtures of anionic and nonionic surfactants, but the use of these mixtures causes certain problems: those arising from a selective adsorption of one of the two products, preferably to the second, and those related to the temperature in the reservoir, where the solubility of the non-ionic derivative decreases with temperature (cloud point).
Foreliggende oppfinnelse vedrører en fremgangsmåte for øket oljeutvinning som er anvendbar i formasjoner hvor saltkonsentra-sjonene kan variere innen vide grenser. Det overflateaktive middel er en mono- eller di-ester av a-sulfokarboksylsyre i samsvar med følgende generelle formel: The present invention relates to a method for increased oil recovery which can be used in formations where the salt concentrations can vary within wide limits. The surfactant is a mono- or die-ester of α-sulfocarboxylic acid according to the following general formula:
hvori R er alkyl med 5 til 25 karbonatomer; R' er alkyl med 1 til 8 karbonatomer og er et metallkation (alkali eller jord-alkali, spesielt litium, natrium, kalium, magnesium, kalsium) eller et ammoniumion (f.eks. ammonium, trietanolammonium, trietylammonium, pyridin etc). I jordalkalimetallene (toverdige) er W<®> i virkeligheten et halv-kation ^m<2+>. M<*> er imidlertid for det meste et énverdig kation. wherein R is alkyl of 5 to 25 carbon atoms; R' is alkyl of 1 to 8 carbon atoms and is a metal cation (alkali or alkaline earth, especially lithium, sodium, potassium, magnesium, calcium) or an ammonium ion (eg ammonium, triethanolammonium, triethylammonium, pyridine etc). In the alkaline earth metals (divalent), W<®> is actually a half-cation ^m<2+>. However, M<*> is mostly a monovalent cation.
Eksempler på estere, egnet som overflateaktive midler for øket oljeutvinning i henhold til oppfinnelsen, er: a-(natriumsulfonat)metyldodekanoat, Examples of esters, suitable as surfactants for increased oil recovery according to the invention, are: a-(sodium sulphonate) methyl dodecanoate,
a-(kaliumsulfonat)etyldodekanoat, α-(Potassium sulphonate) ethyl dodecanoate,
a-(natriumsulfonat)trietylenglykol-monododekanoat, a,a'-(natriumdisulfonat)etylenglykol-didodekanoat, a-(ammoniumsulfonat)propylpalmitat, a-(Sodium sulfonate)triethylene glycol monododecanoate, a,a'-(Sodium disulfonate)ethylene glycol didodecanoate, a-(ammonium sulfonate)propyl palmitate,
a-(natriumsulfonat)butylstearat, a-(sodium sulfonate)butyl stearate,
a-(dietylaminsulfonat)isopropylmyristat, α-(Diethylamine sulfonate) isopropyl myristate,
a-(trietanolammoniumsulfonat)metylstearat, α-(triethanolammonium sulfonate) methyl stearate,
a-(natriumsulfonat)metylpalmitat, α-(sodium sulfonate) methyl palmitate,
a-(natriumsulfonat)propylenglykol-monopalmitat og a-(natriumsulfonat)(natriumsulfonat)-2-etyl-monobehenat. α-(sodium sulfonate)propylene glycol monopalmitate and α-(sodium sulfonate)(sodium sulfonate)-2-ethyl monobehenate.
Gruppene R og R' velges i forhold til saltkonsentra- The groups R and R' are chosen in relation to the salt concentration
sjonen i vannet på det behandlede felt. Denne gruppe av estere av a-sulfokarboksylsyrer tilveiebringer et bredt sett av produkter, som lett kan syntetiseres, hvor valget kan "avpasses etter ønske" i samsvar med egenskapene til det underjordiske reservoar. tion in the water in the treated field. This group of esters of α-sulfocarboxylic acids provides a wide set of products, which can be easily synthesized, the choice of which can be "tailored" according to the characteristics of the underground reservoir.
På den annen side kan visse produkter av nevnte gruppe av estere av a-sulfokarboksylsyrer fremstilles fra naturlige råmaterialer, enten av animalsk eller vegetabilsk opprinnelse, som tilhører kategorien fettstoffer, oljer og smøremidler, så som talgolje, rapsolje, palmeolje, kokosnøttolje etc, dvs. fra råmaterialer hvis fremstilling og pris er relativt uavhengig av svingningene på oljemarkedet. On the other hand, certain products of the aforementioned group of esters of α-sulfocarboxylic acids can be produced from natural raw materials, either of animal or vegetable origin, which belong to the category of fats, oils and lubricants, such as tallow oil, rapeseed oil, palm oil, coconut oil etc., i.e. from raw materials whose production and price are relatively independent of fluctuations in the oil market.
Teknologien for fremstilling av disse estere av a-sulfoner-te fettsyrer har vært gjenstand for tallrike publikasjoner The technology for producing these esters of α-sulfonated fatty acids has been the subject of numerous publications
(A.J. Stirton, Journal of the Amer. Oil Chemists, Vol. 39, november 196 2, s. 4 90-4 96; W. Stein og H. Bauman, samme ref., Vol. 52, september 1975, s.323-329; B.L. Kapur, J.M.Solomon (A.J. Stirton, Journal of the Amer. Oil Chemists, Vol. 39, November 196 2, pp. 4 90-4 96; W. Stein and H. Bauman, same ref., Vol. 52, September 1975, p. 323 -329; B. L. Kapur, J. M. Solomon
og B.R. Bluestein, samme ref., Vol. 5_5, juni 1978, s.549-557) and B.R. Bluestein, same ref., Vol. 5_5, June 1978, pp. 549-557)
og visse produkter er allerede i handelen. US-patentskrifter and certain products are already on the market. US patent documents
3 128 294 og 3 173 940 kan også nevnes. 3 128 294 and 3 173 940 can also be mentioned.
Disse estere av a-sulfokarboksylsyrer er, uventet, meget bestandige mot hydrolyse i' sammenligning med estere av fettsyrer, og dette over et pH-område fra 3,5 til 9,5 og ved temperaturer opp til 80°C eller mer. These esters of α-sulfocarboxylic acids are, unexpectedly, very resistant to hydrolysis in comparison with esters of fatty acids, and this over a pH range from 3.5 to 9.5 and at temperatures up to 80°C or more.
I henhold til oppfinnelsen kan det anvendes flere teknikker med disse overflateaktive midler av gruppen a-sulfokarboksylsyreestere, enten alene eller som blandinger, innbefattet blandinger med andre anioniske overflateaktive midler (petroleumsulfonater, olefinsulfonater etc.) eller ikke-ioniske overflateaktive midler (polyoksyetylalkylfenoler, polyoksyetylalkoholer etc). According to the invention, several techniques can be used with these surfactants from the group α-sulfocarboxylic acid esters, either alone or as mixtures, including mixtures with other anionic surfactants (petroleum sulphonates, olefin sulphonates etc.) or non-ionic surfactants (polyoxyethyl alkylphenols, polyoxyethyl alcohols etc.) ).
En første teknikk består i å anvende en vandig løsning av det overflateaktive middel ved konsentrasjoner av aktivt produkt på fortrinnsvis fra 0,5 til 10 vekt%, hvor de innsprøytede volu-mer fortrinnsvis er fra 20 til 30 % av porevolumet, og hvor de reologiske egenskaper til systemet eventuelt blir justert ved å tilsette en vannløselig polymer til løsningen. En annen teknikk består i å sprøyte inn et mindre volum av en løsning som fortrinnsvis kan inneholde opp til 30 vekt% med overflateaktivt middel , uttrykt som aktivt materiale, og variable innhold av vann, hydrokarbon, olje og eventuelt ko-overflateaktivt middel, som tilsvarer anvendelse av mikroemulsjoner. A first technique consists in using an aqueous solution of the surfactant at concentrations of active product of preferably from 0.5 to 10% by weight, where the injected volumes are preferably from 20 to 30% of the pore volume, and where the rheological properties of the system are possibly adjusted by adding a water-soluble polymer to the solution. Another technique consists in injecting a smaller volume of a solution which can preferably contain up to 30% by weight of surfactant, expressed as active material, and variable contents of water, hydrocarbon, oil and any co-surfactant, which corresponds to application of microemulsions.
Når de overflateaktive midler som her er nevnt anvendes som mikroemulsjoner, kan det ko-overflateaktive middel velges fra slike som er kjent på fagområdet, spesielt fra forskjellige alifatiske, alicykliske, aromatisk-alifatiske mono-alkoholer, så som for eksempel isopropyl-, butyl-, isobutyl-, amyl-, isoamyl-, heksyl-, heptyl-, oktyl-alkoholer, cykloheksa-nol og benzylalkohol eller fra alkylenglykol-alkylmonoetere, så som for eksempel etylenglykol- monobutyleter, og denne liste er bare belysende og ikke begrensende. Andelene av ko-overflateaktivt middel er velkjent på fagområdet. Vanligvis anvendes det fordelaktig 50 til 150 vektdeler alkohol sammen med 100 vektdeler overflateaktivt middel. When the surfactants mentioned here are used as microemulsions, the co-surfactant can be selected from those known in the field, in particular from various aliphatic, alicyclic, aromatic-aliphatic mono-alcohols, such as for example isopropyl, butyl , isobutyl, amyl, isoamyl, hexyl, heptyl, octyl alcohols, cyclohexanol and benzyl alcohol or from alkylene glycol alkyl monoethers, such as for example ethylene glycol monobutyl ether, and this list is only illustrative and not limiting. The proportions of co-surfactant are well known in the art. Usually 50 to 150 parts by weight of alcohol are advantageously used together with 100 parts by weight of surfactant.
På den annen side er typen av hydrokarbon og det valgfrie saltinnhold i vannet bestemmende" for valget av de andeler av overflateaktivt middel som anvendes for å opprettholde mikroemul-sjonen innen stabilitetsgrensene. Denne mengde er som oftest, spesielt for mikroemulsjoner av saltvann med paraffiniske hydro-karboner, på ca, 1 til 30 vektdeler pr. 100 deler av mikroemul-sjonsblanding. Vanligvis er det bekvemt med en andel på ca. 1 til 15-deler pr. 100 deler av mikroemulsjon når det er i alt vesentlig like mengder av hydrokarbon og vann. On the other hand, the type of hydrocarbon and the optional salt content of the water are decisive for the choice of the proportions of surfactant used to maintain the microemulsion within the stability limits. This quantity is most often, especially for microemulsions of salt water with paraffinic hydro- carbons, at about 1 to 30 parts by weight per 100 parts of microemulsion mixture. Generally, a proportion of about 1 to 15 parts per 100 parts of microemulsion is convenient when there are substantially equal amounts of hydrocarbon and water.
Oppfinnelsen blir belyst med de følgende eksempler. The invention is illustrated with the following examples.
Disse eksempler viser, for forskjellige forbindelser av gruppen av a-sulfokarboksylsyreestere, det optimale saltinnhold og solubiliserings-parameterene. These examples show, for various compounds of the group of α-sulfocarboxylic acid esters, the optimal salt content and the solubilization parameters.
EKSEMPLER 1 TIL 8 EXAMPLES 1 TO 8
Flerfaseblandinger som beskriver overganger l+III-s-II (Winsor-systemer) fremstilles ved å øke vannets saltinnhold. De oppløste mengder av olje og vann i den micellære fase blir be-stemt. Det saltinnhold hvorved disse mengder er like, blir skjønnsmessig definert som det optimale saltinnhold (O.S.). Multiphase mixtures describing transitions l+III-s-II (Winsor systems) are produced by increasing the salt content of the water. The dissolved amounts of oil and water in the micellar phase are determined. The salt content at which these amounts are equal is arbitrarily defined as the optimal salt content (O.S.).
Solubiliseringsparameterene (S.P.) beregnes på følgende måte: „ „ _ vekt av opprinnelig vann - vekt av vannoverskudd C p yann =: *- -* ■ - ■ — - The solubilization parameters (S.P.) are calculated as follows: „ „ _ weight of original water - weight of excess water C p yann =: *- -* ■ - ■ — -
vann vekt av opprinnelig vann- water weight of original water
, . _ vekt av opprinnelig olje - vekt av oljeoverskudd S.P. o je - vekt av opprinnelig olje , . _ weight of original oil - weight of excess oil S.P. o je - weight of original oil
Den følgende blanding fremstilles: The following mixture is prepared:
Saltløsningen består av vann, NaCl og CaCl2 i forholdet 9 deler NaCl for hver del CaCl2. The salt solution consists of water, NaCl and CaCl2 in a ratio of 9 parts NaCl for every part CaCl2.
I den følgende tabell er type av ester av a-sulfokarboksylsyre som anvendes som overflateaktivt middel, og de oppnådde verdier for optimalt saltinnhold (O.S.) og solubiliseringspara-metere (S.P.), angitt for de oppgitte temperaturer. In the following table, the type of ester of α-sulfocarboxylic acid that is used as surfactant, and the values obtained for optimal salt content (O.S.) and solubilization parameters (S.P.), are indicated for the stated temperatures.
Claims (2)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8311971A FR2549524B1 (en) | 1983-07-20 | 1983-07-20 | OIL RECOVERY PROCESS USING ANIONIC SURFACTANTS FROM THE FAMILY OF A-SULFOCARBOXYLIC ACID ESTERS |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| NO842944L NO842944L (en) | 1985-01-21 |
| NO169190B true NO169190B (en) | 1992-02-10 |
| NO169190C NO169190C (en) | 1992-05-20 |
Family
ID=9290959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO842944A NO169190C (en) | 1983-07-20 | 1984-07-18 | PROCEDURE FOR OIL EXTRACTION |
Country Status (6)
| Country | Link |
|---|---|
| CA (1) | CA1218229A (en) |
| DE (1) | DE3426512A1 (en) |
| FR (1) | FR2549524B1 (en) |
| GB (1) | GB2143563B (en) |
| IT (1) | IT1179504B (en) |
| NO (1) | NO169190C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8465668B2 (en) | 2007-10-16 | 2013-06-18 | Basf Se | Surfactants with a polyethersulfonate structure method for production thereof and use thereof for tertiary crude oil production |
| FR2989093B1 (en) | 2012-04-06 | 2014-04-18 | Total Sa | SURFACTANT COMPOUNDS, COMPOSITIONS COMPRISING THE SAME, PROCESS FOR SYNTHESIS AND USES, IN PARTICULAR FOR THE ASSISTED RECOVERY OF HYDROCARBONS |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL69066C (en) * | 1943-09-28 | |||
| US3128294A (en) * | 1961-06-09 | 1964-04-07 | Alexander J Stirton | Salts of alpha-sulfonated fatty acid esters |
| US3173940A (en) * | 1962-04-16 | 1965-03-16 | Eastman Kodak Co | Polyoxyloweralkylene glycol di alpha-sulpho monocarboxylates and salts thereof |
| FR2400947A2 (en) * | 1977-06-24 | 1979-03-23 | Elf Aquitaine | Surfactant concentrates for preparing oil-water emulsions - for use in oil recovery operations (NL 13.6.78) |
| FR2373328A1 (en) * | 1976-12-10 | 1978-07-07 | Elf Aquitaine | Surfactant concentrates for preparing oil-water emulsions - for use in oil recovery operations (NL 13.6.78) |
-
1983
- 1983-07-20 FR FR8311971A patent/FR2549524B1/en not_active Expired
-
1984
- 1984-07-18 NO NO842944A patent/NO169190C/en unknown
- 1984-07-18 DE DE3426512A patent/DE3426512A1/en not_active Withdrawn
- 1984-07-20 IT IT21997/84A patent/IT1179504B/en active
- 1984-07-20 CA CA000459390A patent/CA1218229A/en not_active Expired
- 1984-07-20 GB GB08418569A patent/GB2143563B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE3426512A1 (en) | 1985-01-31 |
| IT8421997A0 (en) | 1984-07-20 |
| IT1179504B (en) | 1987-09-16 |
| NO842944L (en) | 1985-01-21 |
| GB2143563A (en) | 1985-02-13 |
| FR2549524A1 (en) | 1985-01-25 |
| CA1218229A (en) | 1987-02-24 |
| GB8418569D0 (en) | 1984-08-22 |
| FR2549524B1 (en) | 1986-10-03 |
| GB2143563B (en) | 1986-09-17 |
| NO169190C (en) | 1992-05-20 |
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