NO20070628L - Measurement of rock parameters - Google Patents

Measurement of rock parameters

Info

Publication number
NO20070628L
NO20070628L NO20070628A NO20070628A NO20070628L NO 20070628 L NO20070628 L NO 20070628L NO 20070628 A NO20070628 A NO 20070628A NO 20070628 A NO20070628 A NO 20070628A NO 20070628 L NO20070628 L NO 20070628L
Authority
NO
Norway
Prior art keywords
matrix
borehole
amplitude
tool
transducer
Prior art date
Application number
NO20070628A
Other languages
Norwegian (no)
Inventor
Brikt Rathour Hansen
Original Assignee
Statoil Asa
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 Statoil Asa filed Critical Statoil Asa
Priority to NO20070628A priority Critical patent/NO20070628L/en
Priority to GB0913740A priority patent/GB2458618B/en
Priority to PCT/NO2008/000036 priority patent/WO2008094050A2/en
Priority to US12/524,504 priority patent/US20100095757A1/en
Publication of NO20070628L publication Critical patent/NO20070628L/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
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/04—Analysing solids
    • G01N29/043—Analysing solids in the interior, e.g. by shear waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/34—Generating the ultrasonic, sonic or infrasonic waves, e.g. electronic circuits specially adapted therefor
    • G01N29/348—Generating the ultrasonic, sonic or infrasonic waves, e.g. electronic circuits specially adapted therefor with frequency characteristics, e.g. single frequency signals, chirp signals
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
    • G01V1/40—Seismology; Seismic or acoustic prospecting or detecting specially adapted for well-logging
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
    • G01V1/40—Seismology; Seismic or acoustic prospecting or detecting specially adapted for well-logging
    • G01V1/44—Seismology; Seismic or acoustic prospecting or detecting specially adapted for well-logging using generators and receivers in the same well
    • G01V1/48—Processing data
    • G01V1/50—Analysing data
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/023—Solids
    • G01N2291/0232—Glass, ceramics, concrete or stone
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/028—Material parameters
    • G01N2291/02818—Density, viscosity
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/028—Material parameters
    • G01N2291/02854—Length, thickness
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/26—Scanned objects
    • G01N2291/263—Surfaces
    • G01N2291/2636—Surfaces cylindrical from inside

Landscapes

  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Analytical Chemistry (AREA)
  • Pathology (AREA)
  • General Health & Medical Sciences (AREA)
  • Biochemistry (AREA)
  • Acoustics & Sound (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geophysics (AREA)
  • Remote Sensing (AREA)
  • Mining & Mineral Resources (AREA)
  • Fluid Mechanics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Geophysics And Detection Of Objects (AREA)

Abstract

Denne oppfinnelsen vedrører fremgangsmåter og apparater for måling av fysikalske parametere slik som densitet og porøsistet til grunnmassen i området nær et borehull. Dette oppnås med et borehullsverktøy omfattende et antall av transduserelementer i et transduserarray anbrakt på den ytterste overflaten av borehullsverktøyet og i stand til å utsende fokuserte stråler av høyfrekvent ultralyd inn i grunnmassen i området nær borehullet. Transduser-arrayet kan være anbrakt på ribber eller stabilisatorer til borehullsverktøyet og/eller på en krage med en lavere rotasjonshastighet og kan omfatte et frontmateriale med lignende akustisk impedans som grunnmassen. Oppfinnelsen vedrører videre en fremgangsmåte for måling av fysikalske parametere til grunnmassen nær et borehull hvor en fokusert stråle av høyfrekvent ultralyd sendes inn i grunnmassen i området nær borehullet fra en eller flere transduser-array anbrakt å et borehullsverktøy. Strålen er gitt en fokuspunktposisjon, frekvens og amplitude, og amplituden av det reflekterte signalet og tiden til den største amplituden i det reflekterte signalet måles. Densiteten av grunnmassen bestemmes deretter anvendende lovene om refleksjon og/eller et antall av 2D og/eller 3D bilder av formasjonen genereres basert på hvilke porøsiteten til grunnmassen bestemmes.This invention relates to methods and apparatus for measuring physical parameters such as density and porosity to the matrix in the area near a borehole. This is achieved with a borehole tool comprising a plurality of transducer elements in a transducer array disposed on the outermost surface of the borehole tool and capable of emitting focused high frequency ultrasound beams into the matrix in the region near the borehole. The transducer array may be mounted on ribs or stabilizers of the borehole tool and / or on a collar with a lower rotational speed and may comprise a front material having a similar acoustic impedance as the matrix. The invention further relates to a method for measuring physical parameters of the matrix near a borehole where a focused beam of high frequency ultrasound is transmitted into the matrix in the region near the borehole from one or more transducer arrays positioned to a borehole tool. The beam is given a focal point position, frequency and amplitude, and the amplitude of the reflected signal and the time of the largest amplitude of the reflected signal are measured. The density of the matrix is then determined using the laws of reflection and / or a number of 2D and / or 3D images of the formation generated based on which the porosity of the matrix is determined.

NO20070628A 2007-02-02 2007-02-02 Measurement of rock parameters NO20070628L (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
NO20070628A NO20070628L (en) 2007-02-02 2007-02-02 Measurement of rock parameters
GB0913740A GB2458618B (en) 2007-02-02 2008-02-04 Measurements of rock parameters
PCT/NO2008/000036 WO2008094050A2 (en) 2007-02-02 2008-02-04 Measurements of rock parameters
US12/524,504 US20100095757A1 (en) 2007-02-02 2008-02-04 Measurements of rock parameters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO20070628A NO20070628L (en) 2007-02-02 2007-02-02 Measurement of rock parameters

Publications (1)

Publication Number Publication Date
NO20070628L true NO20070628L (en) 2008-08-04

Family

ID=39590461

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20070628A NO20070628L (en) 2007-02-02 2007-02-02 Measurement of rock parameters

Country Status (4)

Country Link
US (1) US20100095757A1 (en)
GB (1) GB2458618B (en)
NO (1) NO20070628L (en)
WO (1) WO2008094050A2 (en)

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CN113504307A (en) * 2021-09-10 2021-10-15 西南石油大学 Multi-frequency core sound velocity measuring device

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113504307A (en) * 2021-09-10 2021-10-15 西南石油大学 Multi-frequency core sound velocity measuring device

Also Published As

Publication number Publication date
WO2008094050A2 (en) 2008-08-07
WO2008094050A3 (en) 2008-09-25
GB2458618B (en) 2011-08-31
US20100095757A1 (en) 2010-04-22
GB0913740D0 (en) 2009-09-16
GB2458618A (en) 2009-09-30

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Legal Events

Date Code Title Description
CHAD Change of the owner's name or address (par. 44 patent law, par. patentforskriften)

Owner name: STATOIL ASA, NO

FC2A Withdrawal, rejection or dismissal of laid open patent application