[go: up one dir, main page]

WO2004003506A3 - In-situ detection and analysis of coal bed methane formations - Google Patents

In-situ detection and analysis of coal bed methane formations Download PDF

Info

Publication number
WO2004003506A3
WO2004003506A3 PCT/US2003/020116 US0320116W WO2004003506A3 WO 2004003506 A3 WO2004003506 A3 WO 2004003506A3 US 0320116 W US0320116 W US 0320116W WO 2004003506 A3 WO2004003506 A3 WO 2004003506A3
Authority
WO
WIPO (PCT)
Prior art keywords
probe
coal bed
spectrometer
analysis
bed methane
Prior art date
Application number
PCT/US2003/020116
Other languages
French (fr)
Other versions
WO2004003506A2 (en
Inventor
John M Pope
Rick L Cox
Lieu Neil R Van
Daniel A Buttry
Original Assignee
John M Pope
Rick L Cox
Lieu Neil R Van
Daniel A Buttry
Well Dog Inc
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 John M Pope, Rick L Cox, Lieu Neil R Van, Daniel A Buttry, Well Dog Inc filed Critical John M Pope
Priority to CA002490784A priority Critical patent/CA2490784A1/en
Priority to EP03742220A priority patent/EP1558914A4/en
Priority to AU2003279837A priority patent/AU2003279837A1/en
Priority to EA200500089A priority patent/EA200500089A1/en
Publication of WO2004003506A2 publication Critical patent/WO2004003506A2/en
Publication of WO2004003506A3 publication Critical patent/WO2004003506A3/en

Links

Classifications

    • 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
    • E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
    • E21B41/005—Waste disposal systems
    • E21B41/0057—Disposal of a fluid by injection into a subterranean formation
    • E21B41/0064—Carbon dioxide sequestration
    • 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
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/006—Production of coal-bed methane
    • 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
    • E21B47/00—Survey of boreholes or wells
    • E21B47/002—Survey of boreholes or wells by visual inspection
    • 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
    • G01N21/01—Arrangements or apparatus for facilitating the optical investigation
    • G01N21/15—Preventing contamination of the components of the optical system or obstruction of the light path
    • 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
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
    • G01N21/3504—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing gases, e.g. multi-gas analysis
    • 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
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/85—Investigating moving fluids or granular solids
    • G01N21/8507—Probe photometers, i.e. with optical measuring part dipped into fluid sample
    • 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
    • G01N21/01—Arrangements or apparatus for facilitating the optical investigation
    • G01N21/15—Preventing contamination of the components of the optical system or obstruction of the light path
    • G01N2021/154—Ultrasonic cleaning
    • 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
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
    • G01N2021/3595—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using FTIR
    • 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
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/85—Investigating moving fluids or granular solids
    • G01N21/8507—Probe photometers, i.e. with optical measuring part dipped into fluid sample
    • G01N2021/855—Underground probe, e.g. with provision of a penetration tool
    • 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
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/33—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using ultraviolet light
    • 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
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
    • G01N21/359—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using near infrared light
    • 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
    • G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
    • G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
    • G01N21/64—Fluorescence; Phosphorescence
    • 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
    • G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
    • G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
    • G01N21/65—Raman scattering
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
    • Y02C20/00—Capture or disposal of greenhouse gases
    • Y02C20/40—Capture or disposal of greenhouse gases of CO2

Landscapes

  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • General Physics & Mathematics (AREA)
  • Pathology (AREA)
  • Immunology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Geophysics (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)

Abstract

A measuring system for in-situ measurements down a well by a spectrometer (4) is provided. The spectrometer (4) includes a radiation source (5) and a detector (6). A probe is optically connected to the spectrometer (4) and includes an optical pathway (7) for transmission of a radiation from the radiation source (5) and at least a second optical pathway for transmission of a characteristic radiation from a sample to the detector (6). A positioner is provided to position the probe near a side surface (11) of the borehole (3) and to optically couple the optical pathways to the side surface (11), where the probe is traversable up and down the well by way of a guide operatively connected to the probe and to a fixed location at the wellhead. By use of the apparautus and method a concentration of methane or other substance of interest is obtained, and thereby, a potential production of a coal bed methane formation is obtained.
PCT/US2003/020116 2002-06-26 2003-06-26 In-situ detection and analysis of coal bed methane formations WO2004003506A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CA002490784A CA2490784A1 (en) 2002-06-26 2003-06-26 In-situ detection and analysis of coal bed methane formations
EP03742220A EP1558914A4 (en) 2002-06-26 2003-06-26 In-situ detection and analysis of coal bed methane formations with optical instruments and methods and apparatus to facilitate methane production and analysis
AU2003279837A AU2003279837A1 (en) 2002-06-26 2003-06-26 In-situ detection and analysis of coal bed methane formations
EA200500089A EA200500089A1 (en) 2002-06-26 2003-06-26 DETECTION AND ANALYSIS OF METHANE IN THE FORMATIONS OF METHANE COAL STRAYS

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US39143002P 2002-06-26 2002-06-26
US60/391,430 2002-06-26

Publications (2)

Publication Number Publication Date
WO2004003506A2 WO2004003506A2 (en) 2004-01-08
WO2004003506A3 true WO2004003506A3 (en) 2004-05-21

Family

ID=30000704

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2003/020116 WO2004003506A2 (en) 2002-06-26 2003-06-26 In-situ detection and analysis of coal bed methane formations

Country Status (6)

Country Link
EP (1) EP1558914A4 (en)
CN (1) CN1672032A (en)
AU (1) AU2003279837A1 (en)
CA (1) CA2490784A1 (en)
EA (1) EA200500089A1 (en)
WO (1) WO2004003506A2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7216702B2 (en) 2003-02-28 2007-05-15 Yates Petroleum Corporation Methods of evaluating undersaturated coalbed methane reservoirs
US7710000B2 (en) 2006-08-04 2010-05-04 Schlumberger Technology Corporation Erosion and wear resistant sonoelectrochemical probe
US7804598B2 (en) 2006-08-04 2010-09-28 Schlumberger Technology Corportion High power acoustic resonator with integrated optical interfacial elements
US12378882B2 (en) 2018-05-14 2025-08-05 Schlumberger Technology Corporation Method for performing Raman spectroscopy within a logging while drilling instrument

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2012216360B2 (en) * 2005-03-14 2014-12-18 Gas Sensing Technology Corp. Apparatus and method of combining zonal isolation and in situ spectroscopic analysis of reservoir fluids for coal seams
US7832475B2 (en) 2005-08-12 2010-11-16 University Of Wyoming Research Corporation Biogenic methane production enhancement systems
EP1867833B1 (en) * 2006-06-15 2009-04-29 Services Pétroliers Schlumberger Apparatus and method for obtaining images of a borehole
EP1882809B1 (en) * 2006-07-24 2011-04-13 Services Pétroliers Schlumberger Methods and apparatus for micro-imaging
CA2729802C (en) 2008-07-02 2013-06-11 Ciris Energy, Inc. Method for optimizing in-situ bioconversion of carbon-bearing formations
SE533578C2 (en) 2009-04-14 2010-10-26 Bioprocess Control Sweden Ab Device for measuring an ultra-low gas flow and a system for measuring biomethane gas flow and biogas flow with the device
IN2012DN06285A (en) 2009-12-18 2015-09-25 Ciris Energy Inc
US9140643B2 (en) 2012-04-11 2015-09-22 Chevron U.S.A. Inc. System and method for interrogation of target material in situ
CN102944546B (en) * 2012-12-07 2015-08-12 上海神开石油化工装备股份有限公司 A kind of drilling fluid analytical equipment and analytical approach thereof
DE102013111235A1 (en) * 2012-12-19 2014-06-26 Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG Arrangement for the optical measurement of one or more physical, chemical and / or biological process variables of a medium
CN104020499B (en) * 2014-06-20 2016-08-24 郑州晶微电子科技有限公司 The mounting structure of Electromagnetism of Earthquake perturbation sensor and installation method
CN111465351B (en) 2017-12-11 2025-02-07 豪洛捷公司 Ultrasound localization system with advanced biopsy site markers
US10670528B2 (en) * 2018-11-02 2020-06-02 Kaiser Optical Systems Inc. System for measuring composition of a mixed phase fluid
CN109540812A (en) * 2018-12-27 2019-03-29 核工业北京地质研究院 Hyperspectral measurement system and measurement method in a kind of well
CN109765191B (en) * 2019-01-18 2023-11-10 中国矿业大学 A moving coal and rock translational tracking hyperspectral identification device
CN109681186A (en) * 2019-02-21 2019-04-26 安文霞 Pipeline road is used in detection
BR102019013939A2 (en) * 2019-07-04 2021-01-12 Petróleo Brasileiro S.A. - Petrobras COOLING SYSTEM FOR ELECTRONIC WELL BACKGROUND DEVICE
US11163091B2 (en) * 2020-01-23 2021-11-02 Saudi Arabian Oil Company In-situ hydrocarbon detection and monitoring
US11220893B2 (en) 2020-01-23 2022-01-11 Saudi Arabian Oil Company Laser array for heavy hydrocarbon heating
CN111929796B (en) * 2020-08-19 2022-07-19 青岛澳瑞德电子有限公司 Light path adjusting structure of variable light spot
CN111965039B (en) * 2020-08-25 2022-06-10 贵州大学 Experimental device for research moves/hydrostatic pressure to rock mechanical properties's influence
CN113202455A (en) * 2021-06-02 2021-08-03 中国石油天然气股份有限公司西南油气田分公司川中油气矿 Oil exploration method and system based on Internet of things
CN114166877B (en) * 2021-12-08 2023-08-18 中国矿业大学 A method for testing the ability of coal to adsorb methane based on XRD microcrystalline structure evolution
CN115061218B (en) * 2022-06-14 2025-04-18 中国矿业大学 A surface geochemical detection method for free coalbed methane enrichment area in coal mine goaf
CN117250179B (en) * 2023-07-27 2024-05-17 中国地质科学院矿产资源研究所 Mobile Raman detection system and method for field site
CN117404061B (en) * 2023-10-26 2024-08-13 中国石油大学(华东) Multiphase fluid migration distribution monitoring device based on acoustic-electric combination

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2334475A (en) * 1938-12-03 1943-11-16 Schlumberger Well Surv Corp Method and apparatus for investigating earth formations traversed by boreholes
US3859851A (en) * 1973-12-12 1975-01-14 Schlumberger Technology Corp Methods and apparatus for testing earth formations
US4490845A (en) * 1982-02-02 1984-12-25 Westinghouse Electric Corp. Automated acousto-optic infrared analyzer system
US4994671A (en) * 1987-12-23 1991-02-19 Schlumberger Technology Corporation Apparatus and method for analyzing the composition of formation fluids
US6388251B1 (en) * 1999-01-12 2002-05-14 Baker Hughes, Inc. Optical probe for analysis of formation fluids

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4696903A (en) * 1982-12-21 1987-09-29 Lalos & Keegan Method and apparatus for examining earth formations
US5663559A (en) * 1995-06-07 1997-09-02 Schlumberger Technology Corporation Microscopy imaging of earth formations
GB9925373D0 (en) * 1999-10-27 1999-12-29 Schlumberger Ltd Downhole instrumentation and cleaning system
PL365462A1 (en) * 2000-04-11 2005-01-10 Welldog, Inc. In-situ detection and analysis of methane in coal bed methane formations with spectrometers

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2334475A (en) * 1938-12-03 1943-11-16 Schlumberger Well Surv Corp Method and apparatus for investigating earth formations traversed by boreholes
US3859851A (en) * 1973-12-12 1975-01-14 Schlumberger Technology Corp Methods and apparatus for testing earth formations
US4490845A (en) * 1982-02-02 1984-12-25 Westinghouse Electric Corp. Automated acousto-optic infrared analyzer system
US4994671A (en) * 1987-12-23 1991-02-19 Schlumberger Technology Corporation Apparatus and method for analyzing the composition of formation fluids
US6388251B1 (en) * 1999-01-12 2002-05-14 Baker Hughes, Inc. Optical probe for analysis of formation fluids

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP1558914A4 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7216702B2 (en) 2003-02-28 2007-05-15 Yates Petroleum Corporation Methods of evaluating undersaturated coalbed methane reservoirs
US7287585B2 (en) 2003-02-28 2007-10-30 Yates Petroleum Corporation Methods of quantifying gas content of a gas-sorbed formation solid
US7710000B2 (en) 2006-08-04 2010-05-04 Schlumberger Technology Corporation Erosion and wear resistant sonoelectrochemical probe
US7804598B2 (en) 2006-08-04 2010-09-28 Schlumberger Technology Corportion High power acoustic resonator with integrated optical interfacial elements
US10386320B2 (en) 2006-08-04 2019-08-20 Schlumberger Technology Corporation Erosion and wear resistant sonoelectrochemical probe
US12378882B2 (en) 2018-05-14 2025-08-05 Schlumberger Technology Corporation Method for performing Raman spectroscopy within a logging while drilling instrument

Also Published As

Publication number Publication date
EP1558914A2 (en) 2005-08-03
CN1672032A (en) 2005-09-21
CA2490784A1 (en) 2004-01-08
EP1558914A4 (en) 2006-10-25
EA200500089A1 (en) 2005-08-25
WO2004003506A2 (en) 2004-01-08
AU2003279837A1 (en) 2004-01-19

Similar Documents

Publication Publication Date Title
WO2004003506A3 (en) In-situ detection and analysis of coal bed methane formations
EA200201084A1 (en) SPECTROSCOPIC DETECTION AND ANALYSIS OF METHANE IN THE NATURAL MERGENCY IN METHANE ASSEMBLY IN COALS
US8885163B2 (en) Interferometry-based downhole analysis tool
Williams et al. Acoustic and optical borehole-wall imaging for fractured-rock aquifer studies
US8068226B2 (en) Methods and apparatus for estimating a downhole fluid property
RU2461708C2 (en) Independent control of depth for down-hole equipment
US6474152B1 (en) Methods and apparatus for optically measuring fluid compressibility downhole
US9334727B2 (en) Downhole formation fluid contamination assessment
AU2001255282A1 (en) In-situ detection and analysis of methane in coal bed methane formations with spectrometers
WO2000042416A1 (en) Optical tool and method for analysis of formation fluids
WO2008095053A1 (en) Apparatus and method for imaging fluids downhole
US10761238B2 (en) Downhole optical chemical compound monitoring device, bottom hole assembly and measurements-while-drilling tool comprising the same, and method of optically monitoring chemical compound downhole during drilling
US20080156975A1 (en) Multi-evaluation core logger
US20130213648A1 (en) Optical fluid analyzer sampling tool using open beam optical construction
US10316650B2 (en) Gas phase detection of downhole fluid sample components
CA3226668A1 (en) Penetration testing module
GB2462711A (en) Tracking the location of a tool in a wellbore using imagers

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ OM PH PL PT RO RU SC SD SE SG SK SL TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 2490784

Country of ref document: CA

Ref document number: 2003279837

Country of ref document: AU

WWE Wipo information: entry into national phase

Ref document number: 20038175584

Country of ref document: CN

WWE Wipo information: entry into national phase

Ref document number: 200500089

Country of ref document: EA

WWE Wipo information: entry into national phase

Ref document number: 2003742220

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 2003742220

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: JP

WWW Wipo information: withdrawn in national office

Ref document number: JP

WWW Wipo information: withdrawn in national office

Ref document number: 2003742220

Country of ref document: EP