BRPI0502652A - processo de obtenção de hidroxipropilamido (hpa) para utilização em tratamento de poços de perfuração - Google Patents

processo de obtenção de hidroxipropilamido (hpa) para utilização em tratamento de poços de perfuração

Info

Publication number
BRPI0502652A
BRPI0502652A BRPI0502652-0A BRPI0502652A BRPI0502652A BR PI0502652 A BRPI0502652 A BR PI0502652A BR PI0502652 A BRPI0502652 A BR PI0502652A BR PI0502652 A BRPI0502652 A BR PI0502652A
Authority
BR
Brazil
Prior art keywords
hpa
hydroxypropyl starch
drilling
drilling well
well treatment
Prior art date
Application number
BRPI0502652-0A
Other languages
English (en)
Inventor
Pedro Tocchetto Thormann
Original Assignee
Pedro Tocchetto Thormann
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 Pedro Tocchetto Thormann filed Critical Pedro Tocchetto Thormann
Priority to BRPI0502652-0A priority Critical patent/BRPI0502652A/pt
Priority to US11/261,926 priority patent/US20070004915A1/en
Publication of BRPI0502652A publication Critical patent/BRPI0502652A/pt

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B11/00—Preparation of cellulose ethers
    • C08B11/02—Alkyl or cycloalkyl ethers
    • C08B11/04—Alkyl or cycloalkyl ethers with substituted hydrocarbon radicals
    • C08B11/08—Alkyl or cycloalkyl ethers with substituted hydrocarbon radicals with hydroxylated hydrocarbon radicals; Esters, ethers, or acetals thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B31/00—Preparation of derivatives of starch
    • C08B31/08—Ethers
    • C08B31/12—Ethers having alkyl or cycloalkyl radicals substituted by heteroatoms, e.g. hydroxyalkyl or carboxyalkyl starch
    • 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
    • C09K8/02—Well-drilling compositions
    • C09K8/03—Specific additives for general use in well-drilling compositions
    • C09K8/035—Organic additives

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Biochemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Treatment Of Sludge (AREA)
  • Epoxy Compounds (AREA)

Abstract

"PROCESSO DE OBTENçãO DE HIDROXIPROPILAMIDO (HPA) PARA UTILIZAçãO EM TRATAMENTO DE POçOS DE PERFURAçãO". Tratando-se da produção de um produto químico para ser utilizado na perfuração e manutenção de poços em formações subterrâneas. Trata-se de um amido modificado, o hidroxipropilamido ou HPA, para ser usado em salmoura de fluidos de perfuração, manutenção e operações de conclusão de camadas profundas do solo. Com a utilização do HPA o objetivo principal é a redução da perda de filtrado em lamas de fluídos de perfuração de petróleo, adequado a altas temperaturas e pressão.
BRPI0502652-0A 2005-06-30 2005-06-30 processo de obtenção de hidroxipropilamido (hpa) para utilização em tratamento de poços de perfuração BRPI0502652A (pt)

Priority Applications (2)

Application Number Priority Date Filing Date Title
BRPI0502652-0A BRPI0502652A (pt) 2005-06-30 2005-06-30 processo de obtenção de hidroxipropilamido (hpa) para utilização em tratamento de poços de perfuração
US11/261,926 US20070004915A1 (en) 2005-06-30 2005-10-31 Process for obtaining hydroxypropylstarch (HPS) for use in the treatment of drilling wells

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BRPI0502652-0A BRPI0502652A (pt) 2005-06-30 2005-06-30 processo de obtenção de hidroxipropilamido (hpa) para utilização em tratamento de poços de perfuração

Publications (1)

Publication Number Publication Date
BRPI0502652A true BRPI0502652A (pt) 2007-02-21

Family

ID=37590543

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0502652-0A BRPI0502652A (pt) 2005-06-30 2005-06-30 processo de obtenção de hidroxipropilamido (hpa) para utilização em tratamento de poços de perfuração

Country Status (2)

Country Link
US (1) US20070004915A1 (pt)
BR (1) BRPI0502652A (pt)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108203470A (zh) * 2016-12-19 2018-06-26 湖南尔康制药股份有限公司 一种预胶化羟丙基淀粉及其制备方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2438855A (en) * 1942-02-25 1948-03-30 Corn Prod Refining Co Process of modifying starch
US3804828A (en) * 1972-05-08 1974-04-16 Nat Starch Chem Corp Epichlorohydrin-inhibited,stabilized retort starches
EP1176254A1 (en) * 2000-07-24 2002-01-30 The Dow Chemical Company Use of dispersions of crosslinked cationic starch in papermaking
US7387985B2 (en) * 2003-03-31 2008-06-17 M-I L.L.C. Monovalent cation-containing well fluids

Also Published As

Publication number Publication date
US20070004915A1 (en) 2007-01-04

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Legal Events

Date Code Title Description
B06F Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]
B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B09B Patent application refused [chapter 9.2 patent gazette]

Free format text: INDEFIRO O PEDIDO DE ACORDO COM OS ARTIGOS 8O COMBINADO COM ART. 13 E ART. 25 DA LPI.

B09B Patent application refused [chapter 9.2 patent gazette]

Free format text: MANTIDO O INDEFERIMENTO UMA VEZ QUE NAO FOI APRESENTADO RECURSO DENTRO DO PRAZO LEGAL.

B15K Others concerning applications: alteration of classification

Ipc: C08B 11/08 (2006.01), C08B 31/12 (2006.01), C09K 8