NO965286L - Method and apparatus for acoustic reflection logging in boreholes - Google Patents

Method and apparatus for acoustic reflection logging in boreholes

Info

Publication number
NO965286L
NO965286L NO965286A NO965286A NO965286L NO 965286 L NO965286 L NO 965286L NO 965286 A NO965286 A NO 965286A NO 965286 A NO965286 A NO 965286A NO 965286 L NO965286 L NO 965286L
Authority
NO
Norway
Prior art keywords
borehole
acoustic
formation
tool
interest
Prior art date
Application number
NO965286A
Other languages
Norwegian (no)
Other versions
NO965286D0 (en
Inventor
Cengiz Esmersoy
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
Application filed by Schlumberger Technology Bv filed Critical Schlumberger Technology Bv
Publication of NO965286D0 publication Critical patent/NO965286D0/en
Publication of NO965286L publication Critical patent/NO965286L/en

Links

Classifications

    • 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
    • G01N29/11—Analysing solids by measuring attenuation of acoustic waves
    • 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
    • G01V1/46—Data acquisition
    • 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
    • G01N2291/04—Wave modes and trajectories
    • G01N2291/044—Internal reflections (echoes), e.g. on walls or defects

Landscapes

  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Remote Sensing (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geophysics (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)

Abstract

En fremgangsmåte for å avbilde formasjoner omkring et borehull omfatter trinnene å fastslå borehullets diameter, å fastslå en akustisk dempningsegenskap for formasjonene, å fastslå et dybdeområde inne i formasjonen av interesse for undersøkelsen fra borehullet, å plassere et verktøy i borehullet, å overføre akustiske signaler fra verktøyet i formasjonen, å motta de akustiske signaler ved verktøyet som har vært reflektert fra strukturer innenfor formasjonen, å analysere de mottatte akustiske signaler for å fastslå avstander til de reflekterende strukturer fra borehullet, og å generer et bilde av plasseringen til de reflekterende strukturer i forhold til borehullet basert på de fastslåtte avstander. Verktøyet omfatter i det minste en monopolgiver og i det minste en akustisk mottaker adskilt fra giveren ved en avstand valgt med hensyn til dybdeområdet av interesse for undersøkelsen. Frekvensen til det akustiske signal er valgt med hensyn til borehull- diameteren, formasjonens akustiske dempnings- egenskap og dybdeområdet av interesse for undersøkelsen.One method of mapping formations around a borehole comprises the steps of determining the borehole diameter, determining an acoustic attenuation property for the formations, determining a depth range within the formation of interest for the borehole survey, placing a tool in the borehole, transmitting acoustic signals the tool in the formation, to receive the acoustic signals by the tool that has been reflected from structures within the formation, to analyze the received acoustic signals to determine distances to the reflective structures from the wellbore, and to generate an image of the location of the reflective structures in relation to to the borehole based on the determined distances. The tool comprises at least one monopolar transducer and at least one acoustic receiver separated from the transducer at a distance selected with respect to the depth range of interest for the study. The frequency of the acoustic signal is chosen with respect to the borehole diameter, the acoustic attenuation property of the formation and the depth range of interest to the study.

NO965286A 1995-12-11 1996-12-10 Method and apparatus for acoustic reflection logging in boreholes NO965286L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US57046495A 1995-12-11 1995-12-11

Publications (2)

Publication Number Publication Date
NO965286D0 NO965286D0 (en) 1996-12-10
NO965286L true NO965286L (en) 1997-06-12

Family

ID=24279753

Family Applications (1)

Application Number Title Priority Date Filing Date
NO965286A NO965286L (en) 1995-12-11 1996-12-10 Method and apparatus for acoustic reflection logging in boreholes

Country Status (3)

Country Link
JP (1) JPH1062555A (en)
GB (1) GB2308190B (en)
NO (1) NO965286L (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9906995D0 (en) 1998-09-16 1999-05-19 Geco Prakla Uk Ltd Seismic detection apparatus and related method
US6820716B2 (en) * 2003-01-16 2004-11-23 Baker Hughes Incorporated Acoustic isolator for well logging system
US6956790B2 (en) 2003-04-25 2005-10-18 Schlumberger Technology Corporation Borehole sonic data processing method
US7207397B2 (en) * 2003-09-30 2007-04-24 Schlumberger Technology Corporation Multi-pole transmitter source
CA2648418C (en) 2006-04-06 2016-01-05 Weatherford/Lamb, Inc. Improved performance of permanently installed tubing conveyed seismic arrays using passive acoustic absorbers
CA2778091A1 (en) 2009-10-26 2011-05-05 Schlumberger Canada Limited Apparatus for logging while drilling acoustic measurement
CN104713950B (en) * 2015-03-31 2017-11-14 中国科学院武汉岩土力学研究所 Sonic test coupling device and method of testing
CN105275451B (en) * 2015-09-25 2019-05-07 武汉力博物探有限公司 A borehole radial three-dimensional imaging system
CN115113212B (en) * 2022-06-22 2024-08-13 湖南科技大学 Drilling and measuring device for detecting surrounding rock fracture range of underground chamber based on sound waves
CN115407410B (en) * 2022-10-27 2023-01-31 山东省鲁南地质工程勘察院(山东省地质矿产勘查开发局第二地质大队) Bayonet mineral exploration device based on radio wave reflection

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MA19839A1 (en) * 1982-07-06 1984-04-01 Exxon Production Research Co ACOUSTIC LOGGING APPARATUS AND METHOD AND METHOD FOR REDUCING NOISE FROM COMPRESSION AND STONELEY WAVES.
FR2598817B1 (en) * 1986-05-16 1988-07-15 Elf Aquitaine VERY HIGH RESOLUTION SEISMIC PROSPECTION PROCESS IN HORIZONTAL DRILLING.
US4899844A (en) * 1989-01-23 1990-02-13 Atlantic Richfield Company Acoustical well logging method and apparatus

Also Published As

Publication number Publication date
NO965286D0 (en) 1996-12-10
GB2308190A (en) 1997-06-18
GB9623989D0 (en) 1997-01-08
GB2308190B (en) 1998-02-11
JPH1062555A (en) 1998-03-06

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