OA10859A - A method for the thermo-chemical dewaxing of largedimension lines - Google Patents

A method for the thermo-chemical dewaxing of largedimension lines Download PDF

Info

Publication number
OA10859A
OA10859A OA60925A OA60925A OA10859A OA 10859 A OA10859 A OA 10859A OA 60925 A OA60925 A OA 60925A OA 60925 A OA60925 A OA 60925A OA 10859 A OA10859 A OA 10859A
Authority
OA
OAPI
Prior art keywords
nitrogen
conduit
sait
poly
reaction
Prior art date
Application number
OA60925A
Other languages
English (en)
Inventor
Carlos Nagib Khalil
Alberto Cunha Carneiro D Silva
Celso Rodrigo De Souza
Maria Cristina Brum
Claudio Silvio Viana Martins
Sonia Maria Cabral De Menezes
Original Assignee
Petroleo Brasileiro Sa
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from BR9505262A external-priority patent/BR9505262A/pt
Priority claimed from BR9505556A external-priority patent/BR9505556A/pt
Application filed by Petroleo Brasileiro Sa filed Critical Petroleo Brasileiro Sa
Publication of OA10859A publication Critical patent/OA10859A/en

Links

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)
  • Organic Chemistry (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Lubricants (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
  • Organic Insulating Materials (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Hydrogen, Water And Hydrids (AREA)
OA60925A 1995-11-22 1996-11-20 A method for the thermo-chemical dewaxing of largedimension lines OA10859A (en)

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 (1)

Publication Number Publication Date
OA10859A true OA10859A (en) 2003-02-05

Family

ID=25664711

Family Applications (1)

Application Number Title Priority Date Filing Date
OA60925A OA10859A (en) 1995-11-22 1996-11-20 A method for the thermo-chemical dewaxing of largedimension lines

Country Status (8)

Country Link
US (1) US5824160A (zh)
CN (1) CN1128861C (zh)
AR (1) AR004146A1 (zh)
CA (1) CA2189616C (zh)
GB (1) GB2307497B (zh)
MX (1) MX9605725A (zh)
NO (1) NO317347B1 (zh)
OA (1) OA10859A (zh)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
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
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
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
US9976073B2 (en) 2014-06-02 2018-05-22 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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
US5824160A (en) 1998-10-20
AR004146A1 (es) 1998-09-30
GB9622808D0 (en) 1997-01-08
MX9605725A (es) 1997-05-31
GB2307497B (en) 1999-07-28
CN1153202A (zh) 1997-07-02
NO964951D0 (no) 1996-11-21
CA2189616A1 (en) 1997-05-23
NO317347B1 (no) 2004-10-18
GB2307497A (en) 1997-05-28
NO964951L (no) 1997-05-23
CN1128861C (zh) 2003-11-26
CA2189616C (en) 1999-10-19

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