NO20050819L - Spectroscopic pH paints using optimized reagent mixtures to extend the paint range - Google Patents

Spectroscopic pH paints using optimized reagent mixtures to extend the paint range

Info

Publication number
NO20050819L
NO20050819L NO20050819A NO20050819A NO20050819L NO 20050819 L NO20050819 L NO 20050819L NO 20050819 A NO20050819 A NO 20050819A NO 20050819 A NO20050819 A NO 20050819A NO 20050819 L NO20050819 L NO 20050819L
Authority
NO
Norway
Prior art keywords
spectroscopic
paints
extend
range
reagent mixtures
Prior art date
Application number
NO20050819A
Other languages
Norwegian (no)
Other versions
NO20050819D0 (en
NO342836B1 (en
Inventor
Oliver Clinton Mullins
Philippe Salamitou
Gale Hyslip Gustavson
Emilie Dressaire
Oleg Zhdaneev
Ronald Van Hal
Bhavani Raghuraman
Original Assignee
Schlumberger Technology Bv
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 US10/782,209 external-priority patent/US7432109B2/en
Application filed by Schlumberger Technology Bv filed Critical Schlumberger Technology Bv
Publication of NO20050819D0 publication Critical patent/NO20050819D0/en
Publication of NO20050819L publication Critical patent/NO20050819L/en
Publication of NO342836B1 publication Critical patent/NO342836B1/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/24—Earth materials
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
    • E21B49/08—Obtaining fluid samples or testing fluids, in boreholes or wells
    • E21B49/087—Well testing, e.g. testing for reservoir productivity or formation parameters
    • E21B49/0875—Well testing, e.g. testing for reservoir productivity or formation parameters determining specific fluid parameters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
    • G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
    • G01N21/78—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour
    • G01N21/80—Indicating pH value

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Geology (AREA)
  • Biochemistry (AREA)
  • Immunology (AREA)
  • Mining & Mineral Resources (AREA)
  • Pathology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Remote Sensing (AREA)
  • Plasma & Fusion (AREA)
  • Fluid Mechanics (AREA)
  • Food Science & Technology (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Paints Or Removers (AREA)

Abstract

En indikatorblanding som tillater pH-målinger over et bredere pH-område eller til en høyere nøyaktighet enn det som er tilgjengelig ved å anvende konvensjonelle spektroskopiske teknikker. Mer bestemt omfatter blandingen i henhold til oppfinnelsen to eller flere reagenser slik at når de kombineres, vil reagensblandingen være i stand til å enten detektere: (1) et pH-område som er bedre eller mer nøyaktig enn reagensene individuelt, eller (2) en pH som er mer nøyaktig enn reagensene individuelt. Det er også angitt fremgangsmåter for å lage og å anvende blandingen.An indicator mixture that allows pH measurements over a broader pH range or to a higher accuracy than is available using conventional spectroscopic techniques. More specifically, the composition of the invention comprises two or more reagents such that when combined, the reagent mixture will be able to either detect: (1) a pH range that is better or more accurate than the reagents individually, or (2) a pH that is more accurate than the reagents individually. Methods are also provided for making and using the mixture.

NO20050819A 2004-02-19 2005-02-16 Fluid Assays to Determine the pH of Formation Fluid, and Method of Making Reagent Mixture NO342836B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/782,209 US7432109B2 (en) 2002-11-22 2004-02-19 Spetroscopic pH measurement using optimized mixtures of reagents to extend measurement range

Publications (3)

Publication Number Publication Date
NO20050819D0 NO20050819D0 (en) 2005-02-16
NO20050819L true NO20050819L (en) 2005-08-22
NO342836B1 NO342836B1 (en) 2018-08-13

Family

ID=34394610

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20050819A NO342836B1 (en) 2004-02-19 2005-02-16 Fluid Assays to Determine the pH of Formation Fluid, and Method of Making Reagent Mixture

Country Status (2)

Country Link
GB (1) GB2412171A (en)
NO (1) NO342836B1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7402424B2 (en) * 2006-02-01 2008-07-22 Schlumberger Technology Corporation Spectroscopic pH measurement at high-temperature and/or high-pressure
US7614294B2 (en) 2006-09-18 2009-11-10 Schlumberger Technology Corporation Systems and methods for downhole fluid compatibility
US20080066535A1 (en) 2006-09-18 2008-03-20 Schlumberger Technology Corporation Adjustable Testing Tool and Method of Use
GB2441842B (en) * 2006-09-18 2008-12-31 Schlumberger Holdings Systems and methods for downhole fluid compatability testing and analysis
US20100269579A1 (en) * 2009-04-22 2010-10-28 Schlumberger Technology Corporation Detecting gas compounds for downhole fluid analysis using microfluidics and reagent with optical signature
JP5681548B2 (en) * 2011-03-31 2015-03-11 日本光電工業株式会社 Method for measuring pH of medium solution and pH measuring apparatus
GB2531318A (en) * 2014-10-16 2016-04-20 Inst Energiteknik Tracers

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0617901B2 (en) * 1984-03-28 1994-03-09 シ−シ−アイ株式会社 Anti-corrosion anti-corrosion performance evaluation method for automobile coolant and radiator anti-corrosion agent and anti-corrosion anti-corrosion performance evaluation test kit used for the method
GB2359631B (en) * 2000-02-26 2002-03-06 Schlumberger Holdings Hydrogen sulphide detection method and apparatus
GB2395555B (en) * 2002-11-22 2005-10-12 Schlumberger Holdings Apparatus and method of analysing downhole water chemistry

Also Published As

Publication number Publication date
GB0503161D0 (en) 2005-03-23
NO20050819D0 (en) 2005-02-16
GB2412171A (en) 2005-09-21
NO342836B1 (en) 2018-08-13

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