NO322893B1 - Fremgangsmate for anvendelse av metallkorrosjonsinhiberte, organiske syresammensetninger. - Google Patents
Fremgangsmate for anvendelse av metallkorrosjonsinhiberte, organiske syresammensetninger. Download PDFInfo
- Publication number
- NO322893B1 NO322893B1 NO19982177A NO982177A NO322893B1 NO 322893 B1 NO322893 B1 NO 322893B1 NO 19982177 A NO19982177 A NO 19982177A NO 982177 A NO982177 A NO 982177A NO 322893 B1 NO322893 B1 NO 322893B1
- Authority
- NO
- Norway
- Prior art keywords
- acid
- organic acid
- corrosion inhibitor
- aqueous
- group
- Prior art date
Links
- 230000007797 corrosion Effects 0.000 title claims description 65
- 238000005260 corrosion Methods 0.000 title claims description 65
- 239000000203 mixture Substances 0.000 title claims description 43
- 150000007524 organic acids Chemical class 0.000 title claims description 41
- 229910052751 metal Inorganic materials 0.000 title claims description 27
- 239000002184 metal Substances 0.000 title claims description 27
- 238000000034 method Methods 0.000 title claims description 23
- 239000003112 inhibitor Substances 0.000 claims description 40
- CWERGRDVMFNCDR-UHFFFAOYSA-N thioglycolic acid Chemical compound OC(=O)CS CWERGRDVMFNCDR-UHFFFAOYSA-N 0.000 claims description 24
- 239000002253 acid Substances 0.000 claims description 18
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 claims description 17
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 claims description 17
- 150000001412 amines Chemical class 0.000 claims description 17
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 claims description 17
- 239000011347 resin Substances 0.000 claims description 14
- 229920005989 resin Polymers 0.000 claims description 14
- 239000002195 soluble material Substances 0.000 claims description 12
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 claims description 8
- 150000002576 ketones Chemical class 0.000 claims description 7
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 claims description 6
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 6
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 6
- 239000004094 surface-active agent Substances 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 5
- OJVAMHKKJGICOG-UHFFFAOYSA-N 2,5-hexanedione Chemical compound CC(=O)CCC(C)=O OJVAMHKKJGICOG-UHFFFAOYSA-N 0.000 claims description 4
- PMNLUUOXGOOLSP-UHFFFAOYSA-N 2-mercaptopropanoic acid Chemical compound CC(S)C(O)=O PMNLUUOXGOOLSP-UHFFFAOYSA-N 0.000 claims description 4
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 claims description 4
- KWOLFJPFCHCOCG-UHFFFAOYSA-N Acetophenone Chemical compound CC(=O)C1=CC=CC=C1 KWOLFJPFCHCOCG-UHFFFAOYSA-N 0.000 claims description 4
- AEMRFAOFKBGASW-UHFFFAOYSA-N Glycolic acid Chemical compound OCC(O)=O AEMRFAOFKBGASW-UHFFFAOYSA-N 0.000 claims description 4
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 claims description 4
- BGTOWKSIORTVQH-UHFFFAOYSA-N cyclopentanone Chemical compound O=C1CCCC1 BGTOWKSIORTVQH-UHFFFAOYSA-N 0.000 claims description 4
- SWXVUIWOUIDPGS-UHFFFAOYSA-N diacetone alcohol Chemical compound CC(=O)CC(C)(C)O SWXVUIWOUIDPGS-UHFFFAOYSA-N 0.000 claims description 4
- 235000019253 formic acid Nutrition 0.000 claims description 4
- HJOVHMDZYOCNQW-UHFFFAOYSA-N isophorone Chemical compound CC1=CC(=O)CC(C)(C)C1 HJOVHMDZYOCNQW-UHFFFAOYSA-N 0.000 claims description 4
- 239000002904 solvent Substances 0.000 claims description 4
- -1 2,4-pentanedionyl Chemical group 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 239000001257 hydrogen Substances 0.000 claims description 3
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 3
- OZXIZRZFGJZWBF-UHFFFAOYSA-N 1,3,5-trimethyl-2-(2,4,6-trimethylphenoxy)benzene Chemical compound CC1=CC(C)=CC(C)=C1OC1=C(C)C=C(C)C=C1C OZXIZRZFGJZWBF-UHFFFAOYSA-N 0.000 claims description 2
- SHOJXDKTYKFBRD-UHFFFAOYSA-N mesityl oxide Natural products CC(C)=CC(C)=O SHOJXDKTYKFBRD-UHFFFAOYSA-N 0.000 claims description 2
- NJRXVEJTAYWCQJ-UHFFFAOYSA-N thiomalic acid Chemical compound OC(=O)CC(S)C(O)=O NJRXVEJTAYWCQJ-UHFFFAOYSA-N 0.000 claims description 2
- 239000000243 solution Substances 0.000 description 25
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 10
- 230000015572 biosynthetic process Effects 0.000 description 10
- 238000005755 formation reaction Methods 0.000 description 10
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 9
- 239000011260 aqueous acid Substances 0.000 description 8
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 description 8
- 238000002360 preparation method Methods 0.000 description 6
- 231100000053 low toxicity Toxicity 0.000 description 5
- 238000011282 treatment Methods 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Natural products NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- 238000006683 Mannich reaction Methods 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 229930195733 hydrocarbon Natural products 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 238000010992 reflux Methods 0.000 description 3
- 235000002639 sodium chloride Nutrition 0.000 description 3
- 230000000638 stimulation Effects 0.000 description 3
- 150000003585 thioureas Chemical class 0.000 description 3
- 231100000331 toxic Toxicity 0.000 description 3
- 230000002588 toxic effect Effects 0.000 description 3
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical class C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 2
- 231100000357 carcinogen Toxicity 0.000 description 2
- 239000003183 carcinogenic agent Substances 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 235000019441 ethanol Nutrition 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 230000005764 inhibitory process Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- RGVIYLQXUDJMCP-UHFFFAOYSA-N 2-tridecylphenol Chemical compound CCCCCCCCCCCCCC1=CC=CC=C1O RGVIYLQXUDJMCP-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- IGFHQQFPSIBGKE-UHFFFAOYSA-N Nonylphenol Natural products CCCCCCCCCC1=CC=C(O)C=C1 IGFHQQFPSIBGKE-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000037374 absorbed through the skin Effects 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 125000005233 alkylalcohol group Chemical group 0.000 description 1
- 235000019270 ammonium chloride Nutrition 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000008098 formaldehyde solution Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 125000001183 hydrocarbyl group Chemical group 0.000 description 1
- 150000003840 hydrochlorides Chemical class 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- SNQQPOLDUKLAAF-UHFFFAOYSA-N nonylphenol Chemical compound CCCCCCCCCC1=CC=CC=C1O SNQQPOLDUKLAAF-UHFFFAOYSA-N 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000001103 potassium chloride Substances 0.000 description 1
- 235000011164 potassium chloride Nutrition 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000010959 steel Substances 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
-
- 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
- C09K8/54—Compositions for in situ inhibition of corrosion in boreholes or wells
-
- 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
- C09K8/62—Compositions for forming crevices or fractures
- C09K8/72—Eroding chemicals, e.g. acids
- C09K8/74—Eroding chemicals, e.g. acids combined with additives added for specific purposes
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/04—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in markedly acid liquids
-
- 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
- Y10S507/933—Acidizing or formation destroying
- Y10S507/934—Acidizing or formation destroying with inhibitor
-
- 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
- Y10S507/939—Corrosion inhibitor
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/855,622 US5916484A (en) | 1997-05-13 | 1997-05-13 | Metal corrosion inhibited organic acid compositions |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| NO982177D0 NO982177D0 (no) | 1998-05-13 |
| NO982177L NO982177L (no) | 1998-11-16 |
| NO322893B1 true NO322893B1 (no) | 2006-12-18 |
Family
ID=25321708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO19982177A NO322893B1 (no) | 1997-05-13 | 1998-05-13 | Fremgangsmate for anvendelse av metallkorrosjonsinhiberte, organiske syresammensetninger. |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US5916484A (fr) |
| EP (1) | EP0878606B1 (fr) |
| CA (1) | CA2237547C (fr) |
| DE (1) | DE69806543T2 (fr) |
| DK (1) | DK0878606T3 (fr) |
| NO (1) | NO322893B1 (fr) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1783188A1 (fr) * | 2003-01-24 | 2007-05-09 | Halliburton Energy Services, Inc. | Fluide d'entretien renversable de puits de forage |
| US20080227669A1 (en) * | 2007-03-12 | 2008-09-18 | Halliburton Energy Services, Inc. | Corrosion-inhibiting additives, treatment fluids, and associated methods |
| US20080227668A1 (en) * | 2007-03-12 | 2008-09-18 | Halliburton Energy Services, Inc. | Corrosion-inhibiting additives, treatment fluids, and associated methods |
| US9012376B2 (en) * | 2011-03-14 | 2015-04-21 | Halliburton Energy Services, Inc. | Inulin as corrosion inhibitor |
| WO2013078166A1 (fr) | 2011-11-23 | 2013-05-30 | Saudi Arabian Oil Company | Composition de fracturation à base d'acide biphasée comprenant des inhibiteurs de corrosion et son procédé d'utilisation |
| US8969263B2 (en) | 2012-09-21 | 2015-03-03 | Halliburton Energy Services, Inc. | Treatment fluid containing a corrosion inhibitor of a polymer including a silicone and amine group |
| WO2016190865A1 (fr) * | 2015-05-27 | 2016-12-01 | Halliburton Energy Services, Inc. | Inhibition de la corrosion de fluides de traitement à l'acide chlorhydrique avec un solvant compatible avec l'environnement |
| WO2017040405A1 (fr) | 2015-08-31 | 2017-03-09 | Shell Oil Company | Compositions pondérées d'acides comprenant des acides aminés |
| CA3091966A1 (fr) * | 2018-04-04 | 2019-10-10 | Chemtreat, Inc. | Traitement d'inhibition de la corrosion pour fluides agressifs |
| CN114561645B (zh) * | 2022-01-25 | 2023-12-19 | 湖北菲特沃尔科技有限公司 | 一种聚氧乙烯松香铵缓蚀剂及其制备方法 |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2758970A (en) * | 1953-06-10 | 1956-08-14 | American Chem Paint Co | Derivatives of rosin amines |
| US3668137A (en) * | 1969-04-01 | 1972-06-06 | Amchem Prod | Composition and method for inhibiting acid attack of metals |
| US3634270A (en) * | 1969-06-20 | 1972-01-11 | Dow Chemical Co | Inhibitor |
| US3932296A (en) * | 1973-05-29 | 1976-01-13 | The Dow Chemical Company | Corrosion inhibitor |
| US3992313A (en) * | 1975-07-14 | 1976-11-16 | Amchem Products, Inc. | Acid inhibitor composition and process in hydrofluoric acid chemical cleaning |
| US4684507A (en) * | 1981-11-10 | 1987-08-04 | Petrolite Corporation | Process of corrosion inhibition using compounds containing sulfur and amino groups |
| US4670186A (en) * | 1982-12-17 | 1987-06-02 | Petrolite Corporation | Acid inhibitor composition |
| US4498997A (en) * | 1983-06-24 | 1985-02-12 | Halliburton Company | Method and composition for acidizing subterranean formations |
| US4552672A (en) * | 1984-06-21 | 1985-11-12 | Halliburton Company | Method and composition for acidizing subterranean formations |
| US4762627A (en) * | 1985-01-14 | 1988-08-09 | The Dow Chemical Company | Corrosion inhibitors |
| US5366643A (en) * | 1988-10-17 | 1994-11-22 | Halliburton Company | Method and composition for acidizing subterranean formations |
| US5441929A (en) * | 1994-06-23 | 1995-08-15 | Halliburton Company | Hydrochloric acid acidizing composition and method |
-
1997
- 1997-05-13 US US08/855,622 patent/US5916484A/en not_active Expired - Lifetime
-
1998
- 1998-05-13 EP EP98303757A patent/EP0878606B1/fr not_active Expired - Lifetime
- 1998-05-13 DE DE69806543T patent/DE69806543T2/de not_active Expired - Fee Related
- 1998-05-13 NO NO19982177A patent/NO322893B1/no not_active Application Discontinuation
- 1998-05-13 DK DK98303757T patent/DK0878606T3/da active
- 1998-05-13 CA CA002237547A patent/CA2237547C/fr not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| DE69806543T2 (de) | 2002-10-31 |
| EP0878606A2 (fr) | 1998-11-18 |
| EP0878606B1 (fr) | 2002-07-17 |
| EP0878606A3 (fr) | 1999-03-24 |
| NO982177D0 (no) | 1998-05-13 |
| NO982177L (no) | 1998-11-16 |
| CA2237547A1 (fr) | 1998-11-13 |
| DE69806543D1 (de) | 2002-08-22 |
| CA2237547C (fr) | 2004-11-30 |
| US5916484A (en) | 1999-06-29 |
| DK0878606T3 (da) | 2002-10-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FC2A | Withdrawal, rejection or dismissal of laid open patent application |