BR9915438A - Lubrificante para fluidos de lavagem de perfuração - Google Patents

Lubrificante para fluidos de lavagem de perfuração

Info

Publication number
BR9915438A
BR9915438A BR9915438-2A BR9915438A BR9915438A BR 9915438 A BR9915438 A BR 9915438A BR 9915438 A BR9915438 A BR 9915438A BR 9915438 A BR9915438 A BR 9915438A
Authority
BR
Brazil
Prior art keywords
lubricant
drilling fluid
aqueous drilling
wash fluids
providing
Prior art date
Application number
BR9915438-2A
Other languages
English (en)
Inventor
Heinz Mueller
Claus-Peter Herold
Frank Bongardt
Nadja Herzog
Stephan Von Tapavicza
Original Assignee
Cognis Deutschland Gmbh
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 Cognis Deutschland Gmbh filed Critical Cognis Deutschland Gmbh
Publication of BR9915438A publication Critical patent/BR9915438A/pt

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
    • C09K8/02—Well-drilling compositions
    • C09K8/04—Aqueous well-drilling compositions
    • C09K8/06—Clay-free compositions

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)
  • Lubricants (AREA)
  • Drilling Tools (AREA)

Abstract

Patente de Invenção: <B>"LUBRIFICANTE PARA FLUIDOS DE LAVAGEM DE PERFURAçãO"<D>. é reivindicado o emprego de glicerídeos parciais de ácidos C~ 16-24~ graxos, predominantemente insaturados, de preferência com um "pour point" - medido segundo DIN ISO 3061 - de no máximo 10°C, opcionalmente em mistura com agentes tensoativos aniónicos, como lubrificantes em tais fluidos de lavagem de perfuração para a perfuração exploratória que contêm água e opcionalmente uma fase de óleo separada.
BR9915438-2A 1998-11-17 1999-11-06 Lubrificante para fluidos de lavagem de perfuração BR9915438A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19852971A DE19852971A1 (de) 1998-11-17 1998-11-17 Schmiermittel für Bohrspülungen
PCT/EP1999/008532 WO2000029502A1 (de) 1998-11-17 1999-11-06 Schmiermittel für bohrspülungen

Publications (1)

Publication Number Publication Date
BR9915438A true BR9915438A (pt) 2001-08-07

Family

ID=7888070

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9915438-2A BR9915438A (pt) 1998-11-17 1999-11-06 Lubrificante para fluidos de lavagem de perfuração

Country Status (9)

Country Link
US (1) US6806235B1 (pt)
EP (1) EP1137736B1 (pt)
AT (1) ATE290579T1 (pt)
AU (1) AU756915B2 (pt)
BR (1) BR9915438A (pt)
CA (1) CA2351376C (pt)
DE (2) DE19852971A1 (pt)
NO (1) NO20012430L (pt)
WO (1) WO2000029502A1 (pt)

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Also Published As

Publication number Publication date
EP1137736A1 (de) 2001-10-04
CA2351376A1 (en) 2000-05-25
ATE290579T1 (de) 2005-03-15
NO20012430L (no) 2001-07-02
EP1137736B1 (de) 2005-03-09
US6806235B1 (en) 2004-10-19
AU1269600A (en) 2000-06-05
NO20012430D0 (no) 2001-05-16
CA2351376C (en) 2009-02-17
AU756915B2 (en) 2003-01-23
DE19852971A1 (de) 2000-05-18
DE59911736D1 (de) 2005-04-14
WO2000029502A1 (de) 2000-05-25

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Legal Events

Date Code Title Description
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 6A E 7A ANUIDADES.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 1913 DE 04/09/2007.

B15K Others concerning applications: alteration of classification

Ipc: C09K 8/06 (2006.01)