GB0503161D0 - Spectroscopic pH measurement using optimized mixtures of reagents to extend measurement range - Google Patents

Spectroscopic pH measurement using optimized mixtures of reagents to extend measurement range

Info

Publication number
GB0503161D0
GB0503161D0 GBGB0503161.2A GB0503161A GB0503161D0 GB 0503161 D0 GB0503161 D0 GB 0503161D0 GB 0503161 A GB0503161 A GB 0503161A GB 0503161 D0 GB0503161 D0 GB 0503161D0
Authority
GB
United Kingdom
Prior art keywords
measurement
spectroscopic
reagents
extend
optimized mixtures
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
GBGB0503161.2A
Other versions
GB2412171A (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gemalto Terminals Ltd
Schlumberger Holdings Ltd
Original Assignee
Gemalto Terminals Ltd
Schlumberger Holdings Ltd
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 Gemalto Terminals Ltd, Schlumberger Holdings Ltd filed Critical Gemalto Terminals Ltd
Publication of GB0503161D0 publication Critical patent/GB0503161D0/en
Publication of GB2412171A publication Critical patent/GB2412171A/en
Withdrawn legal-status Critical Current

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 DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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
GB0503161A 2004-02-19 2005-02-16 Spectroscopic pH measurement using optimised mixtures of reagents to extend measurement range Withdrawn GB2412171A (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 (2)

Publication Number Publication Date
GB0503161D0 true GB0503161D0 (en) 2005-03-23
GB2412171A GB2412171A (en) 2005-09-21

Family

ID=34394610

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0503161A Withdrawn GB2412171A (en) 2004-02-19 2005-02-16 Spectroscopic pH measurement using optimised mixtures of reagents to extend measurement range

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
GB2441842B (en) * 2006-09-18 2008-12-31 Schlumberger Holdings Systems and methods for downhole fluid compatability testing and analysis
US20080066535A1 (en) 2006-09-18 2008-03-20 Schlumberger Technology Corporation Adjustable Testing Tool and Method of Use
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
NO20050819D0 (en) 2005-02-16
GB2412171A (en) 2005-09-21
NO342836B1 (en) 2018-08-13
NO20050819L (en) 2005-08-22

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)