CA1175814A - Recuperation assistee du petrole - Google Patents
Recuperation assistee du petroleInfo
- Publication number
- CA1175814A CA1175814A CA000340982A CA340982A CA1175814A CA 1175814 A CA1175814 A CA 1175814A CA 000340982 A CA000340982 A CA 000340982A CA 340982 A CA340982 A CA 340982A CA 1175814 A CA1175814 A CA 1175814A
- Authority
- CA
- Canada
- Prior art keywords
- xanthan
- aluminum
- salt
- iron
- ion
- 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
- 238000002347 injection Methods 0.000 title description 3
- 239000007924 injection Substances 0.000 title description 3
- 238000000605 extraction Methods 0.000 title description 2
- 239000010779 crude oil Substances 0.000 title 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 44
- 229920001285 xanthan gum Polymers 0.000 claims abstract description 35
- GJCOSYZMQJWQCA-UHFFFAOYSA-N 9H-xanthene Chemical compound C1=CC=C2CC3=CC=CC=C3OC2=C1 GJCOSYZMQJWQCA-UHFFFAOYSA-N 0.000 claims abstract description 34
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 28
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 27
- 229910052742 iron Inorganic materials 0.000 claims abstract description 22
- 150000003839 salts Chemical class 0.000 claims abstract description 18
- 229910052751 metal Inorganic materials 0.000 claims abstract description 17
- 239000002184 metal Substances 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 15
- 238000011084 recovery Methods 0.000 claims abstract description 14
- 239000008139 complexing agent Substances 0.000 claims abstract description 10
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 6
- 239000000203 mixture Substances 0.000 claims abstract description 5
- 239000007864 aqueous solution Substances 0.000 claims abstract description 3
- 239000000243 solution Substances 0.000 claims description 15
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 claims description 10
- 150000002500 ions Chemical class 0.000 claims description 8
- KRKNYBCHXYNGOX-UHFFFAOYSA-K Citrate Chemical compound [O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O KRKNYBCHXYNGOX-UHFFFAOYSA-K 0.000 claims description 5
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 5
- 239000002253 acid Substances 0.000 claims description 4
- -1 xanthan aluminum salt Chemical class 0.000 claims description 4
- 230000000536 complexating effect Effects 0.000 claims description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 2
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 claims description 2
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical class CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 claims 1
- 235000014655 lactic acid Nutrition 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 7
- 238000005755 formation reaction Methods 0.000 description 7
- 238000001556 precipitation Methods 0.000 description 7
- QEEAPRPFLLJWCF-UHFFFAOYSA-K potassium citrate (anhydrous) Chemical compound [K+].[K+].[K+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O QEEAPRPFLLJWCF-UHFFFAOYSA-K 0.000 description 6
- 102000004190 Enzymes Human genes 0.000 description 5
- 108090000790 Enzymes Proteins 0.000 description 5
- 239000011148 porous material Substances 0.000 description 5
- 239000000706 filtrate Substances 0.000 description 4
- 239000000499 gel Substances 0.000 description 4
- 150000004676 glycans Chemical class 0.000 description 4
- 229920001282 polysaccharide Polymers 0.000 description 4
- 239000005017 polysaccharide Substances 0.000 description 4
- 239000001508 potassium citrate Substances 0.000 description 4
- 229960002635 potassium citrate Drugs 0.000 description 4
- 235000011082 potassium citrates Nutrition 0.000 description 4
- 150000001768 cations Chemical class 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 239000000284 extract Substances 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 239000002244 precipitate Substances 0.000 description 3
- CYDQOEWLBCCFJZ-UHFFFAOYSA-N 4-(4-fluorophenyl)oxane-4-carboxylic acid Chemical compound C=1C=C(F)C=CC=1C1(C(=O)O)CCOCC1 CYDQOEWLBCCFJZ-UHFFFAOYSA-N 0.000 description 2
- 241001676573 Minium Species 0.000 description 2
- LCTONWCANYUPML-UHFFFAOYSA-N Pyruvic acid Chemical compound CC(=O)C(O)=O LCTONWCANYUPML-UHFFFAOYSA-N 0.000 description 2
- 150000001860 citric acid derivatives Chemical class 0.000 description 2
- 230000001186 cumulative effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- HELHAJAZNSDZJO-OLXYHTOASA-L sodium L-tartrate Chemical compound [Na+].[Na+].[O-]C(=O)[C@H](O)[C@@H](O)C([O-])=O HELHAJAZNSDZJO-OLXYHTOASA-L 0.000 description 2
- 239000001509 sodium citrate Substances 0.000 description 2
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 description 2
- 239000001540 sodium lactate Substances 0.000 description 2
- 229940005581 sodium lactate Drugs 0.000 description 2
- 235000011088 sodium lactate Nutrition 0.000 description 2
- 239000001433 sodium tartrate Substances 0.000 description 2
- 229960002167 sodium tartrate Drugs 0.000 description 2
- 235000011004 sodium tartrates Nutrition 0.000 description 2
- OMDQUFIYNPYJFM-XKDAHURESA-N (2r,3r,4s,5r,6s)-2-(hydroxymethyl)-6-[[(2r,3s,4r,5s,6r)-4,5,6-trihydroxy-3-[(2s,3s,4s,5s,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoxan-2-yl]methoxy]oxane-3,4,5-triol Chemical compound O[C@@H]1[C@@H](O)[C@@H](O)[C@@H](CO)O[C@@H]1OC[C@@H]1[C@@H](O[C@H]2[C@H]([C@@H](O)[C@H](O)[C@@H](CO)O2)O)[C@H](O)[C@H](O)[C@H](O)O1 OMDQUFIYNPYJFM-XKDAHURESA-N 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 241000195493 Cryptophyta Species 0.000 description 1
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 1
- 229920000926 Galactomannan Polymers 0.000 description 1
- IAJILQKETJEXLJ-UHFFFAOYSA-N Galacturonsaeure Natural products O=CC(O)C(O)C(O)C(O)C(O)=O IAJILQKETJEXLJ-UHFFFAOYSA-N 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 241000589636 Xanthomonas campestris Species 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- IAJILQKETJEXLJ-QTBDOELSSA-N aldehydo-D-glucuronic acid Chemical compound O=C[C@H](O)[C@@H](O)[C@H](O)[C@H](O)C(O)=O IAJILQKETJEXLJ-QTBDOELSSA-N 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- BUACSMWVFUNQET-UHFFFAOYSA-H dialuminum;trisulfate;hydrate Chemical compound O.[Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O BUACSMWVFUNQET-UHFFFAOYSA-H 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229940097043 glucuronic acid Drugs 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 150000001261 hydroxy acids Chemical class 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 150000002505 iron Chemical class 0.000 description 1
- 235000014413 iron hydroxide Nutrition 0.000 description 1
- NCNCGGDMXMBVIA-UHFFFAOYSA-L iron(ii) hydroxide Chemical compound [OH-].[OH-].[Fe+2] NCNCGGDMXMBVIA-UHFFFAOYSA-L 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000010413 mother solution Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000011085 pressure filtration Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 229940107700 pyruvic acid Drugs 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000011833 salt mixture Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- NGSFWBMYFKHRBD-UHFFFAOYSA-M sodium lactate Chemical compound [Na+].CC(O)C([O-])=O NGSFWBMYFKHRBD-UHFFFAOYSA-M 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 239000000230 xanthan gum Substances 0.000 description 1
- 229940082509 xanthan gum Drugs 0.000 description 1
- 235000010493 xanthan gum Nutrition 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
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/84—Compositions based on water or polar solvents
- C09K8/86—Compositions based on water or polar solvents containing organic compounds
- C09K8/88—Compositions based on water or polar solvents containing organic compounds macromolecular compounds
- C09K8/90—Compositions based on water or polar solvents containing organic compounds macromolecular compounds of natural origin, e.g. polysaccharides, cellulose
- C09K8/905—Biopolymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L5/00—Compositions of polysaccharides or of their derivatives not provided for in groups C08L1/00 or C08L3/00
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S507/00—Earth boring, well treating, and oil field chemistry
- Y10S507/935—Enhanced oil recovery
- Y10S507/936—Flooding the formation
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Filtering Materials (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7834021A FR2442955A1 (fr) | 1978-12-01 | 1978-12-01 | Perfectionnements a la recuperation assistee du petrole |
| FR78/34021 | 1978-12-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1175814A true CA1175814A (fr) | 1984-10-09 |
Family
ID=9215619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000340982A Expired CA1175814A (fr) | 1978-12-01 | 1979-11-30 | Recuperation assistee du petrole |
Country Status (5)
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4309535A (en) * | 1980-01-21 | 1982-01-05 | Hercules Incorporated | Method of improving dispersibility of anionic cellulose ethers |
| US4466889A (en) * | 1981-08-20 | 1984-08-21 | Pfizer Inc. | Polyvalent metal ion chelating agents for xanthan solutions |
| US4508629A (en) * | 1983-04-08 | 1985-04-02 | Halliburton Company | Method of viscosifying aqueous fluids and process for recovery of hydrocarbons from subterranean formations |
| FR2552441B1 (fr) * | 1983-09-28 | 1985-12-13 | Elf Aquitaine | Procede de stabilisation thermique de solutions aqueuses de polysaccharides et son appplication aux fluides de forage |
| FR2577982A1 (fr) * | 1985-02-27 | 1986-08-29 | Exxon Production Research Co | Compositions a base de polymeres pour l'epaississement de solutions aqueuses, leurs procedes de preparation et leur application dans l'extraction du petrole |
| DE3843416A1 (de) * | 1988-12-23 | 1990-06-28 | Wolff Walsrode Ag | Xanthan mit verbesserter loeslichkeit und verfahren zur herstellung |
| DE3913402A1 (de) * | 1989-04-24 | 1990-10-25 | Wolff Walsrode Ag | Verfahren zur herstellung von mischungen aus xanthan und cellulosederivaten |
| US5223159A (en) * | 1991-03-18 | 1993-06-29 | Smith William H | Delayed breaking metal crosslinked polymer compositions |
| US8567504B2 (en) | 2006-08-04 | 2013-10-29 | Halliburton Energy Services, Inc. | Composition and method relating to the prevention and remediation of surfactant gel damage |
| US9120964B2 (en) | 2006-08-04 | 2015-09-01 | Halliburton Energy Services, Inc. | Treatment fluids containing biodegradable chelating agents and methods for use thereof |
| US9027647B2 (en) | 2006-08-04 | 2015-05-12 | Halliburton Energy Services, Inc. | Treatment fluids containing a biodegradable chelating agent and methods for use thereof |
| US9127194B2 (en) | 2006-08-04 | 2015-09-08 | Halliburton Energy Services, Inc. | Treatment fluids containing a boron trifluoride complex and methods for use thereof |
| US8071511B2 (en) * | 2007-05-10 | 2011-12-06 | Halliburton Energy Services, Inc. | Methods for stimulating oil or gas production using a viscosified aqueous fluid with a chelating agent to remove scale from wellbore tubulars or subsurface equipment |
| EP2158289B1 (en) * | 2007-05-10 | 2016-12-07 | Halliburton Energy Services, Inc. | Methods for stimulating oil or gas production |
| US20080277112A1 (en) * | 2007-05-10 | 2008-11-13 | Halliburton Energy Services, Inc. | Methods for stimulating oil or gas production using a viscosified aqueous fluid with a chelating agent to remove calcium carbonate and similar materials from the matrix of a formation or a proppant pack |
| US8881823B2 (en) | 2011-05-03 | 2014-11-11 | Halliburton Energy Services, Inc. | Environmentally friendly low temperature breaker systems and related methods |
| US9334716B2 (en) | 2012-04-12 | 2016-05-10 | Halliburton Energy Services, Inc. | Treatment fluids comprising a hydroxypyridinecarboxylic acid and methods for use thereof |
| CA2890966A1 (en) * | 2012-12-18 | 2014-06-26 | E.I. Du Pont De Nemours And Company | Method for enhanced recovery of oil from oil reservoirs |
| US9670399B2 (en) | 2013-03-15 | 2017-06-06 | Halliburton Energy Services, Inc. | Methods for acidizing a subterranean formation using a stabilized microemulsion carrier fluid |
| MX2019001691A (es) * | 2016-08-10 | 2019-09-06 | Geo Fossil Fuels Llc | Composiciones que comprenden biopolímeros y métodos para su elaboración. |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2175095A (en) * | 1937-07-06 | 1939-10-03 | Dow Chemical Co | Treatment of wells |
| US3305016A (en) * | 1959-11-02 | 1967-02-21 | Exxon Production Research Co | Displacement of oil from partially depleted reservoirs |
| US3020206A (en) * | 1960-05-23 | 1962-02-06 | Jersey Prod Res Co | Process for synthesizing polysaccharides |
| BE634296A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1960-05-27 | |||
| US3383307A (en) * | 1964-07-30 | 1968-05-14 | Ashland Oil Inc | Gelling agents, gels and methods for forming gels |
| US3243000A (en) * | 1965-06-23 | 1966-03-29 | Exxon Production Research Co | Method and composition for drilling wells and similar boreholes |
| US3532166A (en) * | 1969-01-10 | 1970-10-06 | Mobil Oil Corp | Oil recovery process using thickened aqueous flooding liquids |
| FR2106731A5 (en) | 1970-09-16 | 1972-05-05 | Melle Usine De | Xanthane gum basic salts prepn - by double decompsn reaction with basic aluminium salt |
| US3853771A (en) * | 1971-05-17 | 1974-12-10 | Shell Oil Co | Process for dispersing cellular micro-organisms with chelating aqueous alkaline surfactant systems |
| NO150965C (no) * | 1976-08-05 | 1985-01-16 | Pfizer | Fremgangsmaate for fremstilling av en xantanopploesning |
| US4119546A (en) * | 1976-08-05 | 1978-10-10 | Pfizer Inc. | Process for producing Xanthomonas hydrophilic colloid, product resulting therefrom, and use thereof in displacement of oil from partially depleted reservoirs |
| US4265673A (en) * | 1978-06-23 | 1981-05-05 | Talres Development (N.A.) N.V. | Polymer solutions for use in oil recovery containing a complexing agent for multivalentions |
-
1978
- 1978-12-01 FR FR7834021A patent/FR2442955A1/fr active Granted
-
1979
- 1979-11-20 DE DE19792946724 patent/DE2946724A1/de active Granted
- 1979-11-26 GB GB7940753A patent/GB2038859B/en not_active Expired
- 1979-11-29 US US06/098,410 patent/US4353805A/en not_active Expired - Lifetime
- 1979-11-30 CA CA000340982A patent/CA1175814A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB2038859B (en) | 1983-04-13 |
| FR2442955A1 (fr) | 1980-06-27 |
| GB2038859A (en) | 1980-07-30 |
| FR2442955B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1982-11-12 |
| DE2946724C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1988-05-11 |
| DE2946724A1 (de) | 1980-06-12 |
| US4353805A (en) | 1982-10-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1175814A (fr) | Recuperation assistee du petrole | |
| CA1113233A (en) | Polymer solutions for use in oil recovery | |
| DE2848894C2 (de) | Verfahren zur Herstellung einer pyruvatfreies Xanthan enthaltenden Fermentationsbrühe und deren Verwendung | |
| CA1115222A (fr) | Utilisation de mouts de fermentation pour la recuperation assistee du petrole | |
| CA1172588A (fr) | Procede enzymatique de clarification de gommes xanthanes permettant d'ameliorer leur injectivite et leur filtrabilite | |
| CA1265791A (fr) | Procede de preparation d'un polysaccharide modifie et compositions le contenant | |
| CA1244367A (fr) | Procede de traitement d'une solution aqueuse d'heteropolysaccharide, et solution ou poudre d'heteropolysaccharide ainsi obtenus | |
| CA1172589A (fr) | Procede enzymatique de traitement de gommes xanthanes en vue d'ameliorer la filtrabilite de leurs solutions aqueuses | |
| CA1244368A (fr) | Procede de traitement d'une solution de d'hetepolysaccharides, compositions en poudre d'hetepolysaccharides et leur applications | |
| EP0241340A1 (fr) | Compositions aqueuses stabilisées de polymères hydrosolubles | |
| CH622553A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | ||
| EP0187074B1 (fr) | Procédé de stabilisation thermique de solutions aqueuses de polysaccharides | |
| CA1274796A (fr) | Procede de production de polysaccharides de type xanthane | |
| CA1215523A (fr) | Procede de purification d'acide phosphorique de voie humide | |
| EP0218770A1 (fr) | Utilisation de dérivés d'algues marines comme agents de culture, activateurs de croissance, et agents anti-stress, de micro organismes et champignons, et applications à l'enrobage des semences et aux engrais | |
| CA1123768A (fr) | Polysaccharides de xanthomonas utilisables pour preparer des gels aqueux de filtrabilite amelioree | |
| WO1989004369A1 (fr) | Procede de purification de polysaccharides | |
| CA1324776C (fr) | Procede de purification d'un mout de polysaccharide dans le but d'en accroitre la filtrabilite et utilisation du mout purifie en recuperation assistee du petrole | |
| JP2683813B2 (ja) | 濾過性の増加を目的とする、多糖類を含む醗酵液の処理方法および石油の二次回収におけるこの液の使用 | |
| FR2578173A1 (fr) | Procede pour ameliorer l'injectivite de solutions de biopolymeres. | |
| CN109096409A (zh) | 一种弱凝、易溶性亚洲蜈蚣藻多糖提取物及其应用 | |
| CN110372109A (zh) | 一种石墨烯阻垢滤芯及其制备方法 | |
| CN111264524B (zh) | 一种植物抗蒸腾剂及其制备方法 | |
| John et al. | Production of natural indigo with a high purity | |
| GB2036056A (en) | Process for Treating Xanthomonas Fermentation Broth for use in Displacement of 0il From Partially Depleted Reservoirs |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |