OA10672A - Improved method for the thermo-chemical dewaxing of large dimension lines - Google Patents

Improved method for the thermo-chemical dewaxing of large dimension lines Download PDF

Info

Publication number
OA10672A
OA10672A OA9800030A OA9800030A OA10672A OA 10672 A OA10672 A OA 10672A OA 9800030 A OA9800030 A OA 9800030A OA 9800030 A OA9800030 A OA 9800030A OA 10672 A OA10672 A OA 10672A
Authority
OA
OAPI
Prior art keywords
nitrogen
improved method
reaction
aliphatic
copolyanhydride
Prior art date
Application number
OA9800030A
Other languages
English (en)
Inventor
Celso Rodrigo De Souza
Carlos Nagib Khalil
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
Application filed by Petroleo Brasileiro Sa filed Critical Petroleo Brasileiro Sa
Publication of OA10672A publication Critical patent/OA10672A/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00Cleaning hollow articles by methods or apparatus specially adapted thereto
    • B08B9/02Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027Cleaning the internal surfaces; Removal of blockages
    • B08B9/032Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00Cleaning hollow articles by methods or apparatus specially adapted thereto
    • B08B9/02Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027Cleaning the internal surfaces; Removal of blockages
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K8/00Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/52Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning
    • C09K8/524Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning organic depositions, e.g. paraffins or asphaltenes

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Polyamides (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Fats And Perfumes (AREA)
OA9800030A 1997-03-19 1998-03-13 Improved method for the thermo-chemical dewaxing of large dimension lines OA10672A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BR9701336A BR9701336A (pt) 1997-03-19 1997-03-19 Ativadores de ação retardada para sistema gerador de nitrogênio

Publications (1)

Publication Number Publication Date
OA10672A true OA10672A (en) 2002-10-18

Family

ID=38326163

Family Applications (1)

Application Number Title Priority Date Filing Date
OA9800030A OA10672A (en) 1997-03-19 1998-03-13 Improved method for the thermo-chemical dewaxing of large dimension lines

Country Status (9)

Country Link
US (1) US6003528A (no)
EP (1) EP0865834B1 (no)
CN (1) CN1128862C (no)
AR (1) AR010132A1 (no)
BR (1) BR9701336A (no)
CA (1) CA2227935C (no)
ES (1) ES2256915T3 (no)
NO (1) NO317560B1 (no)
OA (1) OA10672A (no)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US20080069961A1 (en) * 2006-09-14 2008-03-20 Halliburton Energy Services, Inc. Methods and compositions for thermally treating a conduit used for hydrocarbon production or transmission to help remove paraffin wax buildup
MY165424A (en) * 2009-07-27 2018-03-22 Petroliam Nasional Berhad Petronas A method and system for removing organic deposits
US8691731B2 (en) * 2009-11-18 2014-04-08 Baker Hughes Incorporated Heat generation process for treating oilfield deposits
CA2877132A1 (en) 2012-06-25 2014-01-03 Signa Chemistry, Inc. Use of metal silicides in hydrocarbon production and transportation
GB2505244A (en) * 2012-08-24 2014-02-26 Green Channel Ltd Cleaning a waste water vessel using an exothermic reaction

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3669189A (en) * 1970-10-28 1972-06-13 Union Oil Co Method for inhibiting the deposition of wax from a wax-containing oil
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
EP0865834A1 (en) 1998-09-23
CA2227935C (en) 2007-07-31
NO980246D0 (no) 1998-01-20
CN1193656A (zh) 1998-09-23
BR9701336A (pt) 1998-11-17
NO317560B1 (no) 2004-11-15
CA2227935A1 (en) 1998-09-19
ES2256915T3 (es) 2006-07-16
NO980246L (no) 1998-09-21
US6003528A (en) 1999-12-21
CN1128862C (zh) 2003-11-26
AR010132A1 (es) 2000-05-17
EP0865834B1 (en) 2006-01-04

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