Solid-liquid separation of oil-based muds 机翻标题: 暂无翻译,请尝试点击翻译按钮。

公开号/公开日
EP1673417 B1 2016-02-24 [EP1673417]EP1673417 A2 2006-06-28 [EP1673417] / 2016-02-242006-06-28
申请号/申请日
2004EP-0778481 / 2004-07-16
发明人
PENA JORGE EDUARDO ADAMS;MASIAS HENRY;HUANG SUN-YI;FARINATO RAYMOND;
申请人
KEMIRA;
主分类号
IPC分类号
B01F-017/52C09K-008/32C09K-008/36E21B-021/06
摘要
(EP1673417) This invention relates to a method of achieving a solid-liquid separation of an oil-based mud comprising the step of contacting said oil-based mud with a water-in-oil emulsion comprising a polymer derived from at least one water-soluble monomer, where the polymer is not dissolved prior to contact with the oil-based mud, mixing the water-in-oil emulsion and the oil-based mud and separating the solid phase from the liquid phase in the oil-based mud.  In addition, this invention also relates to a composition comprising an oil-based mud with a water-in-oil emulsion comprising a polymer derived from at least one water-soluble monomer, wherein the polymer is not dissolved prior to contact with the oil-based mud.  (From US7338608 B2)
机翻摘要
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地址
代理人
代理机构
;
优先权号
2003US-10674441 2003-09-30 2004WO-US23007 2004-07-16
主权利要求
(EP1673417) 1. A method of separating a solid phase and a liquid phase in an oil-based mud comprising the step of: (i) contacting said oil-based mud with a water-in-oil emulsion comprising a polymer derived from at least one water-soluble monomer, wherein said polymer is not dissolved prior to contact with said oil-based mud; (ii) mixing said water-in-oil emulsion and said oil-based mud; (iii) separating the solid phase and the liquid phase; wherein said at least one water soluble monomer is selected from (alkyl)acrylamide, (alkyl)acrylic acid and salts thereof, N-vinylpyrrolidone, N-vinylacetamide, N-vinylformamide, acrylonitrile, fumaric acid and salts thereof, crotonic acid and salts thereof, maleic acid and salts thereof, hydroxyalkyl methacrylates, 2-acrylamido-2-alkylsulfonic acid and salts thereof, wherein the alkyl group contains 1 to 6 carbon atoms, styrene sulfonic acid and salts thereof; or monomers having the structure of formulas I, II or III (see diagramm)(see diagramm)(see diagramm) wherein R 1, R 2, and R 5 are each independently hydrogen or a C 1 to C 6 alkyl; R 3 and R 4 are each independently hydrogen, a C 1 to C 12 alkyl, aryl, arylalkyl or hydroxyethyl; and R 2 and R 4 or R 2 and R 3 can combine to form a cyclic ring containing one or more hetero atoms; Z is the conjugated base of an acid, X is oxygen or -NR 6 wherein R 6 is hydrogen or a C 1 to C 6 alkyl; and A is a C 1 to C 12 alkylene or a water-soluble vinyl monomer selected from vinyl sulfonic acid and its salts. 2. The method of claim 1, wherein said polymer is a homopolymer or copolymer of monomers selected from (meth)acrylamide, monomers of Formula I, II or III and combinations thereof, wherein R 1 is hydrogen or methyl, R 2 to R 4 are methyl or ethyl and A is C 1 to C 4 alkylene. 3. The method of claim 1, wherein said polymer is a copolymer of an (alkyl)acrylamide monomer, wherein the alkyl group contains 1 to 6 carbon atoms, and at least one second monomer selected from N-vinylpyrrolidone, N-vinylacetamide, N-vinylformamide, acrylonitrile, acrylic acid, methacrylic acid, ethylacrylic acid, fumaric acid, crotonic acid, maleic acid, hydroxyalkyl methacrylates, 2-acrylamido-2-alkylsulfonic acids, styrene sulfonic acids, vinyl sulfonic acid; and salts of any of the foregoing thereof; or monomers of Formulas I, II or III. 4. The method of claim 1, wherein said polymer is a copolymer of (meth)acrylamide and at least one second monomer selected from the group consisting of N,N-dimethylaminoethyl(meth)acrylate or its salts, quaternary N,N-dimethylaminoethyl(meth)acrylates, tertiary or quaternary N,N-dimethylaminopropyl acrylamides, tertiary or quaternary N,N-dimethylaminomethyl acrylamides and diallyl dimethyl ammonium halides. 5. The method of claim 1, wherein said polymer is anionic and is derived by copolymerization of (meth)acrylamide and (meth)acrylic acid. 6. The method of claim 1, wherein said polymer is anionic and is derived by hydrolysis. 7. The method of claim 1, wherein said polymer is branched or crosslinked. 8. The method of claim 1, wherein the concentration of said polymer in said water-in-oil emulsion is 10% to 70% by weight based on the total weight of the emulsion. 9. The method of claim 1, wherein said water-in-oil emulsion is pre-dispersed with oil before contacting with the oil-based mud. 10. The method of claim 9, wherein the concentration of said polymer in said water-in-oil emulsion is 0.1 % to 10% by weight based on the total weight of the emulsion. 11. The method of claim 1, further comprising the addition of a surfactant. 12. The method of claim 11, wherein said the oil-based mud is contacted with the water-in-oil emulsion prior to contact with the surfactant. 13. The method of claim 11, wherein said surfactant has an HLB value greater than 10. 14. The method of claim 11, wherein said surfactant is anionic. 15. The method of claim 11, wherein said surfactant is selected from sulfosuccinates, sulfosuccinamates, alkylaryl sulfonates, diphenylsulfonates, benzene sulfonic acids, (alkyl)naphthalene sulfonic acids, sulfates and sulfonates of oils and fatty acids, sulfates of ethoxylated alkyl phenols, sulfates of alcohols, sulfates of ethoxylated alcohols, petroleum sulfonates, sulfates of fatty esters, sulfonates of condensed naphthalenes, aliphatic or aromatic phosphate esters, alkoxylated alcohols, sodium paraffin sulfonates and mixtures thereof. 16. The method of claim 11, wherein said surfactant is selected from the group consisting of: sodium diisobutylsulfosuccinate, sodium diamylsulfosuccinate, sodium dihexylisulfosuccinate, sodium dicyclohexylsulfosuccinate, sodium dioctylsulfosuccinate, sodium bis(2-ethylhexyl)sulfosuccinate, tetrasodium N-(1,2-dicarboxy-ethyl)-N-octadecylsulfosuccinamate, disodium ethoxylated alcohol half-ester sulfoscuccinate, sodium di(1,3-dimethylbutyl)sulfosuccinate, sodium bistridecylsulfosuccinate and mixtures thereof. 17. The method of claim 1, wherein said separating the solid phase and the liquid phase is conducted by mechanical or gravitational separation. 18. The method of claim 17, wherein said mechanical separation is conducted by a centrifuge, cyclone, pressure filtration or vacuum assisted filtration, and wherein said gravitational separation is conducted by a clarifier, thickener or continuous countercurrent decantation. 19. The method of claim 1, wherein said mixing is conducted using a flow mixer, in-line mixer, gas agitation or mechanical mixer. 20. The method of claim 9, wherein said pre-dispersed oil is kerosene, diesel, paraffin blends, internal olefins or C 16-C 18 alkene blends. 21. The method of any claims 1 to 20, wherein said oil-based mud is an oil-based drilling mud. 22. A composition comprising an oil-based mud and a water-in-oil emulsion comprising a polymer derived from at least one water-soluble monomer, wherein said polymer is not dissolved prior to contact with said oil-based mud;  wherein said at least one water soluble monomer is selected from (alkyl)acrylamide, (alkyl)acrylic acid and salts thereof, N-vinylpyrrolidone, N-vinylacetamide, N-vinylformamide, acrylonitrile, fumaric acid and salts thereof, crotonic acid and salts thereof, maleic acid and salts thereof, hydroxyalkyl methacrylates, 2-acrylamido-2-alkylsulfonic acid and salts thereof, wherein the alkyl group contains 1 to 6 carbon atoms, styrene sulfonic acid and salts thereof; or monomers having the structure of formulas I, II or III (see diagramm)(see diagramm)(see diagramm) wherein R 1, R 2, and R 5 are each independently hydrogen or a C 1 to C 6 alkyl; R 3 and R 4 are each independently hydrogen, a C 1 to C 12 alkyl, aryl, arylalkyl or hydroxyethyl; and R 2 and R 4 or R 2 and R 3 can combine to form a cyclic ring containing one or more hetero atoms; Z is the conjugated base of an acid, X is oxygen or -NR 6 wherein R 6 is hydrogen or a C 1 to C 6 alkyl; and A is a C 1 to C 12 alkylene or a water-soluble vinyl monomer selected from vinyl sulfonic acid and its salts. 23. The composition of claim 22, further comprising a surfactant 24. The composition of claim 23, wherein said surfactant has an HLB value greater than 10. 25. The composition of claim 23, wherein said surfactant is anionic. 26. The composition of claim 23, wherein said surfactant is selected from sulfosuccinates, sulfosuccinamates, alkylaryl sulfonates, diphenylsulfonates, benzene sulfonic acids, (alkyl)naphthalene sulfonic acids; sulfates and sulfonates of oils and fatty acids, sulfates of ethoxylated alkyl phenols, sulfates of alcohols, sulfates of ethoxylated alcohols, petroleum sulfonates, sulfates of fatty esters, sulfonates of condensed naphthalenes, aliphatic or aromatic phosphate esters, alkoxylated alcohols, sodium paraffin sulfonates and mixtures thereof. 27. The composition of claim 23, wherein said surfactant is selected from the group consisting of: sodium diisobutylsulfosuccinate, sodium diamylsulfosuccinate, sodium dihexyllsulfosuccinate, sodium dicyclohexylsulfosuccinate, sodium dioctylsulfosuccinate, sodium bis(2-ethylhexyl)sulfosuccinate, tetrasodium N-(1,2-dicarboxy-ethyl)-N-octadecylsulfosuccinamate, disodium ethoxylated alcohol half-ester sulfoscuccinate, sodium di(1,3-dimethylbutyl)sulfosuccinate, sodium bistridecylsulfosuccinate and mixtures thereof.
法律状态
(EP1673417) LEGAL DETAILS FOR EP1673417  Actual or expected expiration date=2024-07-16    Legal state=ALIVE    Status=GRANTED     Event publication date=2004-07-16  Event code=EP/APP  Event indicator=Pos  Event type=Examination events  Application details  Application country=EP EP04778481  Application date=2004-07-16  Standardized application number=2004EP-0778481     Event publication date=2006-06-28  Event code=EP/A2  Event type=Examination events  Application published without search report  Publication country=EP  Publication number=EP1673417  Publication stage Code=A2  Publication date=2006-06-28  Standardized publication number=EP1673417     Event publication date=2006-06-28  Event code=EP/17P  Event indicator=Pos  Event type=Examination events  Request for examination filed Pruefungsantrag gestellt  Effective date of the event=2006-03-06     Event publication date=2006-06-28  Event code=EP/AK  Event indicator=Pos  Event type=Designated states  Designated contracting states: Benannte vertragsstaaten AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR    Event publication date=2006-06-28  Event code=EP/AX  Event indicator=Pos  Event type=Designated states  Extension of the European patent to Request for extension of the european patent to AL HR LT LV MK    Event publication date=2007-01-03  Event code=EP/DAX  Event indicator=Neg  Event type=Designated states  Request for extension of the european patent (to any country) deleted    Event publication date=2008-01-23  Event code=EP/RAP1  Event type=Change of name or address  Event type=Reassignment  Transfer of rights of an EP application Anmelder uebertragung (korr.) 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