NO317347B1 - Fremgangsmate for termo-kjemisk avvoksing av store dimensjonslinjer - Google Patents
Fremgangsmate for termo-kjemisk avvoksing av store dimensjonslinjer Download PDFInfo
- Publication number
- NO317347B1 NO317347B1 NO19964951A NO964951A NO317347B1 NO 317347 B1 NO317347 B1 NO 317347B1 NO 19964951 A NO19964951 A NO 19964951A NO 964951 A NO964951 A NO 964951A NO 317347 B1 NO317347 B1 NO 317347B1
- Authority
- NO
- Norway
- Prior art keywords
- emulsion
- nitrogen
- line
- reaction
- poly
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 77
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 104
- 238000006243 chemical reaction Methods 0.000 claims abstract description 63
- 238000004519 manufacturing process Methods 0.000 claims abstract description 61
- 239000000839 emulsion Substances 0.000 claims abstract description 52
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 50
- 150000002829 nitrogen Chemical class 0.000 claims abstract description 46
- 239000012190 activator Substances 0.000 claims abstract description 45
- 229920005576 aliphatic polyanhydride Polymers 0.000 claims abstract description 13
- 239000008346 aqueous phase Substances 0.000 claims abstract description 13
- 239000012074 organic phase Substances 0.000 claims abstract description 13
- 239000003350 kerosene Substances 0.000 claims abstract description 12
- 230000001590 oxidative effect Effects 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000007788 liquid Substances 0.000 claims abstract description 5
- 230000001939 inductive effect Effects 0.000 claims abstract description 3
- -1 poly(adipic anhydride) Polymers 0.000 claims description 74
- 239000012530 fluid Substances 0.000 claims description 48
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 42
- 229920002732 Polyanhydride Polymers 0.000 claims description 28
- 239000012188 paraffin wax Substances 0.000 claims description 25
- WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 claims description 24
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 claims description 24
- 239000004215 Carbon black (E152) Substances 0.000 claims description 18
- 229930195733 hydrocarbon Natural products 0.000 claims description 18
- 150000002430 hydrocarbons Chemical class 0.000 claims description 18
- 239000000243 solution Substances 0.000 claims description 16
- 239000000203 mixture Substances 0.000 claims description 14
- 238000005086 pumping Methods 0.000 claims description 14
- 239000000126 substance Substances 0.000 claims description 14
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical group [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 claims description 12
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical group [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims description 11
- 229920001730 Moisture cure polyurethane Polymers 0.000 claims description 11
- 239000001361 adipic acid Substances 0.000 claims description 11
- 235000011037 adipic acid Nutrition 0.000 claims description 11
- 239000007864 aqueous solution Substances 0.000 claims description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 9
- 238000012546 transfer Methods 0.000 claims description 7
- 235000019270 ammonium chloride Nutrition 0.000 claims description 6
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 6
- 230000002829 reductive effect Effects 0.000 claims description 6
- 150000003839 salts Chemical class 0.000 claims description 6
- 235000010288 sodium nitrite Nutrition 0.000 claims description 6
- 239000006227 byproduct Substances 0.000 claims description 5
- 238000006116 polymerization reaction Methods 0.000 claims description 5
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 230000009467 reduction Effects 0.000 claims description 3
- 238000010992 reflux Methods 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 230000003647 oxidation Effects 0.000 claims description 2
- 238000007254 oxidation reaction Methods 0.000 claims description 2
- 239000011541 reaction mixture Substances 0.000 claims 5
- 238000001816 cooling Methods 0.000 claims 1
- 230000008569 process Effects 0.000 abstract description 30
- 150000008064 anhydrides Chemical class 0.000 abstract description 12
- 230000000979 retarding effect Effects 0.000 abstract description 10
- 230000003213 activating effect Effects 0.000 abstract description 3
- 239000003795 chemical substances by application Substances 0.000 abstract description 2
- 239000003960 organic solvent Substances 0.000 description 20
- 230000003111 delayed effect Effects 0.000 description 15
- 230000007062 hydrolysis Effects 0.000 description 15
- 238000006460 hydrolysis reaction Methods 0.000 description 15
- 230000000977 initiatory effect Effects 0.000 description 13
- 230000009471 action Effects 0.000 description 12
- 229960000250 adipic acid Drugs 0.000 description 11
- 229920000642 polymer Polymers 0.000 description 10
- 239000007789 gas Substances 0.000 description 9
- 230000004913 activation Effects 0.000 description 7
- 239000012071 phase Substances 0.000 description 7
- 239000000047 product Substances 0.000 description 7
- 239000001993 wax Substances 0.000 description 7
- 238000001311 chemical methods and process Methods 0.000 description 6
- 238000005243 fluidization Methods 0.000 description 6
- 150000002500 ions Chemical class 0.000 description 6
- 239000000178 monomer Substances 0.000 description 6
- 230000001105 regulatory effect Effects 0.000 description 6
- 238000004088 simulation Methods 0.000 description 6
- 238000004018 waxing Methods 0.000 description 6
- 230000035484 reaction time Effects 0.000 description 5
- 239000013535 sea water Substances 0.000 description 5
- 239000011159 matrix material Substances 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- 239000000725 suspension Substances 0.000 description 4
- 241000191291 Abies alba Species 0.000 description 3
- 238000005481 NMR spectroscopy Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 210000003739 neck Anatomy 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- JPSKCQCQZUGWNM-UHFFFAOYSA-N 2,7-Oxepanedione Chemical compound O=C1CCCCC(=O)O1 JPSKCQCQZUGWNM-UHFFFAOYSA-N 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000001033 granulometry Methods 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- 150000004678 hydrides Chemical class 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
- 230000005012 migration Effects 0.000 description 2
- 239000008385 outer phase Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000013379 physicochemical characterization Methods 0.000 description 2
- WLJVNTCWHIRURA-UHFFFAOYSA-N pimelic acid Chemical compound OC(=O)CCCCCC(O)=O WLJVNTCWHIRURA-UHFFFAOYSA-N 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- 239000012429 reaction media Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000012266 salt solution Substances 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 description 2
- TYFQFVWCELRYAO-UHFFFAOYSA-N suberic acid Chemical compound OC(=O)CCCCCCC(O)=O TYFQFVWCELRYAO-UHFFFAOYSA-N 0.000 description 2
- RTBFRGCFXZNCOE-UHFFFAOYSA-N 1-methylsulfonylpiperidin-4-one Chemical compound CS(=O)(=O)N1CCC(=O)CC1 RTBFRGCFXZNCOE-UHFFFAOYSA-N 0.000 description 1
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- JFCQEDHGNNZCLN-UHFFFAOYSA-N anhydrous glutaric acid Natural products OC(=O)CCCC(O)=O JFCQEDHGNNZCLN-UHFFFAOYSA-N 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 150000001991 dicarboxylic acids Chemical class 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 238000000113 differential scanning calorimetry Methods 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000000892 gravimetry Methods 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- GPRLSGONYQIRFK-UHFFFAOYSA-N hydron Chemical compound [H+] GPRLSGONYQIRFK-UHFFFAOYSA-N 0.000 description 1
- 230000001976 improved effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000008384 inner phase Substances 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000013178 mathematical model Methods 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 239000003002 pH adjusting agent Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000000144 pharmacologic effect Effects 0.000 description 1
- 239000003495 polar organic solvent Substances 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 238000013404 process transfer Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000007928 solubilization Effects 0.000 description 1
- 238000005063 solubilization Methods 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 239000011550 stock solution Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000008096 xylene 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
- C09K8/52—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning
- C09K8/524—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning organic depositions, e.g. paraffins or asphaltenes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Lubricants (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Hydrogen, Water And Hydrids (AREA)
- Organic Insulating Materials (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BR9505262A BR9505262A (pt) | 1995-11-22 | 1995-11-22 | Polianidridos alifáticos composiçóes e processo de preparação dos mesmos |
| BR9505556A BR9505556A (pt) | 1995-11-29 | 1995-11-29 | Processo termo-químico para desparafinação de dutos de grandes dimensões |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| NO964951D0 NO964951D0 (no) | 1996-11-21 |
| NO964951L NO964951L (no) | 1997-05-23 |
| NO317347B1 true NO317347B1 (no) | 2004-10-18 |
Family
ID=25664711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO19964951A NO317347B1 (no) | 1995-11-22 | 1996-11-21 | Fremgangsmate for termo-kjemisk avvoksing av store dimensjonslinjer |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US5824160A (es) |
| CN (1) | CN1128861C (es) |
| AR (1) | AR004146A1 (es) |
| CA (1) | CA2189616C (es) |
| GB (1) | GB2307497B (es) |
| MX (1) | MX9605725A (es) |
| NO (1) | NO317347B1 (es) |
| OA (1) | OA10859A (es) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BR9700727A (pt) * | 1997-01-21 | 1998-08-11 | Petroleo Brasileiro Sa | Processo termo-químico para desparafinação de dutos em condição de fluxo de petróleo |
| RU2186948C1 (ru) * | 2001-05-25 | 2002-08-10 | Общество с ограниченной ответственностью "ЮганскНИПИнефть" | Термохимический состав для удаления асфальтеносмолопарафиновых отложений |
| RU2203411C1 (ru) * | 2002-01-03 | 2003-04-27 | Общество с ограниченной ответственностью "ЮганскНИПИнефть" | Термохимический состав для удаления асфальтеносмолопарафиновых отложений |
| GB0420061D0 (en) * | 2004-09-09 | 2004-10-13 | Statoil Asa | Method |
| US7815744B2 (en) * | 2004-11-30 | 2010-10-19 | Halliburton Energy Services, Inc. | Methods for moving a pig through a pipeline using a chemical reaction to generate a high volume of gas |
| RU2326747C2 (ru) * | 2006-01-19 | 2008-06-20 | Валентин Петрович Перунов | Композиционный состав для очистки трубопроводов и разделения сред |
| GB2436575A (en) * | 2006-03-16 | 2007-10-03 | Statoil Asa | Method for protecting hydrocarbon conduits |
| US7669659B1 (en) * | 2008-01-29 | 2010-03-02 | Lugo Mario R | System for preventing hydrate formation in chemical injection piping for subsea hydrocarbon production |
| MY165424A (en) | 2009-07-27 | 2018-03-22 | Petroliam Nasional Berhad Petronas | A method and system for removing organic deposits |
| US9441471B2 (en) | 2012-02-28 | 2016-09-13 | Baker Hughes Incorporated | In situ heat generation |
| GB2505244A (en) * | 2012-08-24 | 2014-02-26 | Green Channel Ltd | Cleaning a waste water vessel using an exothermic reaction |
| WO2015187122A1 (en) | 2014-06-02 | 2015-12-10 | Halliburton Energy Services, Inc. | Methods and systems for controllably generating heat and/or nitrogen gas in subterranean and pipeline operations |
| US11458419B2 (en) | 2015-02-23 | 2022-10-04 | Saudi Arabian Oil Company | Emulsion system utilizing nitrogen and heat to treat deep water blockage |
| EA029431B1 (ru) * | 2015-03-02 | 2018-03-30 | Частное Учреждение "Институт Полимерных Материалов И Технологий" | Способ получения композиционного гидрогеля для очистки нефтепровода |
| CN111732943B (zh) * | 2020-07-02 | 2022-07-29 | 西安石油大学 | 一种定点式自放热清蜡球及其制备工艺 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4285720A (en) * | 1972-03-15 | 1981-08-25 | Stauffer Chemical Company | Encapsulation process and capsules produced thereby |
| US4219083A (en) * | 1979-04-06 | 1980-08-26 | Shell Oil Company | Chemical process for backsurging fluid through well casing perforations |
| US4755230A (en) * | 1985-01-15 | 1988-07-05 | Baker Oil Tools, Inc. | Method of and composition for removing paraffin deposits from hydrocarbon transmission conduits |
| BR9004200A (pt) * | 1990-08-24 | 1992-03-03 | Petroleo Brasileiro Sa | Processo de desparafinacao de formacoes produtoras |
| BR9301171A (pt) * | 1993-03-15 | 1994-10-18 | Petroleo Brasileiro Sa | Processo termo-químico de desparafinação de dutos condutores de hidrocarbonetos |
-
1996
- 1996-10-31 US US08/742,126 patent/US5824160A/en not_active Expired - Lifetime
- 1996-11-01 GB GB9622808A patent/GB2307497B/en not_active Expired - Lifetime
- 1996-11-05 CA CA002189616A patent/CA2189616C/en not_active Expired - Lifetime
- 1996-11-08 AR ARP960105109A patent/AR004146A1/es unknown
- 1996-11-20 OA OA60925A patent/OA10859A/en unknown
- 1996-11-21 MX MX9605725A patent/MX9605725A/es unknown
- 1996-11-21 NO NO19964951A patent/NO317347B1/no not_active IP Right Cessation
- 1996-11-21 CN CN96110977.7A patent/CN1128861C/zh not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| NO964951D0 (no) | 1996-11-21 |
| NO964951L (no) | 1997-05-23 |
| CA2189616A1 (en) | 1997-05-23 |
| CN1153202A (zh) | 1997-07-02 |
| GB9622808D0 (en) | 1997-01-08 |
| GB2307497A (en) | 1997-05-28 |
| GB2307497B (en) | 1999-07-28 |
| AR004146A1 (es) | 1998-09-30 |
| CA2189616C (en) | 1999-10-19 |
| US5824160A (en) | 1998-10-20 |
| OA10859A (en) | 2003-02-05 |
| CN1128861C (zh) | 2003-11-26 |
| MX9605725A (es) | 1997-05-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| NO317347B1 (no) | Fremgangsmate for termo-kjemisk avvoksing av store dimensjonslinjer | |
| JP3889056B2 (ja) | オイル輸出パイプラインのオンライン熱化学的脱ろう法 | |
| NO322749B1 (no) | Fremgangsmate for termohydraulisk kontroll av gasshydrater | |
| CA2115623A1 (en) | Process for the thermo-chemical dewaxing of hydrocarbon transmission conduits | |
| US4755230A (en) | Method of and composition for removing paraffin deposits from hydrocarbon transmission conduits | |
| CA1145667A (en) | Treatment of subsuraface gas-bearing formations to reduce water production therefrom | |
| US5183581A (en) | Process for the dewaxing of producing formations | |
| US5460728A (en) | Method for inhibiting the plugging of conduits by gas hydrates | |
| US7541315B2 (en) | Paraffin inhibitor compositions and their use in oil and gas production | |
| US8436219B2 (en) | Method of generating a non-plugging hydrate slurry | |
| US4982756A (en) | Use of ultrasonic energy to decrease the gel strength of waxy crude oil | |
| Ali et al. | Phenomena, factors of wax deposition and its management strategies | |
| WO2024099465A1 (zh) | 一种微球型水合物抑制剂及其应用 | |
| EP0421815A1 (en) | Use of ultrasonic energy in the transfer of waxy crude oil | |
| US8357745B2 (en) | Wax-containing materials | |
| WO2005100517A1 (en) | Improved method and additive for the viscosity of crude oil | |
| CA2227935C (en) | Improved method for the thermo-chemical dewaxing of large dimension lines | |
| US6984614B1 (en) | Composition and method for removing deposits | |
| CN87106635A (zh) | 在产油层中沉积聚合物降凝剂的方法 | |
| Anisuzzaman et al. | A short review on waxes and asphaltenes deposition and various treatment approaches to mitigate deposition problems in crude oil | |
| US5535769A (en) | Process for moving highly viscous petroleum products | |
| NO175410B (no) | Fremgangsmåte for transport av en viskös olje ved fremstilling av en emulsjon av olje-i-vann | |
| MXPA99004047A (es) | Proceso termoquimico en linea para la eliminacion de cera de tuberias de exportacion de petroleo | |
| Gulbrandsen et al. | Influence of a synergist on the dissociation of hydrates formed in the presence of the kinetic inhibitor poly vinyl caprolactam | |
| Kiyingi et al. | Petroleum Science |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MK1K | Patent expired |