CA2157101A1 - Logging while drilling method and apparatus for measuring formation characteristics as a function of angular position within a borehole - Google Patents

Logging while drilling method and apparatus for measuring formation characteristics as a function of angular position within a borehole

Info

Publication number
CA2157101A1
CA2157101A1 CA002157101A CA2157101A CA2157101A1 CA 2157101 A1 CA2157101 A1 CA 2157101A1 CA 002157101 A CA002157101 A CA 002157101A CA 2157101 A CA2157101 A CA 2157101A CA 2157101 A1 CA2157101 A1 CA 2157101A1
Authority
CA
Canada
Prior art keywords
borehole
tool
energy
measurement signals
formation
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.)
Granted
Application number
CA002157101A
Other languages
French (fr)
Other versions
CA2157101C (en
Inventor
Jacques M. Holenka
Michael L. Evans
Philip L. Kurkoski
William R. Sloan
David L. Best
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.)
Schlumberger Canada Ltd
Original Assignee
Schlumberger Canada 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
Application filed by Schlumberger Canada Ltd filed Critical Schlumberger Canada Ltd
Priority to CA002157101A priority Critical patent/CA2157101C/en
Publication of CA2157101A1 publication Critical patent/CA2157101A1/en
Application granted granted Critical
Publication of CA2157101C publication Critical patent/CA2157101C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • 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
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V5/00—Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity
    • G01V5/04—Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity specially adapted for well-logging
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V5/00—Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity
    • G01V5/04—Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity specially adapted for well-logging
    • G01V5/08—Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity specially adapted for well-logging using primary nuclear radiation sources or X-rays
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V5/00—Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity
    • G01V5/04—Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity specially adapted for well-logging
    • G01V5/08—Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity specially adapted for well-logging using primary nuclear radiation sources or X-rays
    • G01V5/12—Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity specially adapted for well-logging using primary nuclear radiation sources or X-rays using gamma or X-ray sources
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V5/00—Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity
    • G01V5/04—Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity specially adapted for well-logging
    • G01V5/08—Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity specially adapted for well-logging using primary nuclear radiation sources or X-rays
    • G01V5/14—Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity specially adapted for well-logging using primary nuclear radiation sources or X-rays using a combination of several sources, e.g. a neutron and a gamma source

Landscapes

  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • Remote Sensing (AREA)
  • Geophysics And Detection Of Objects (AREA)

Abstract

A characteristic of an earth formation surrounding an inclined borehole in which a generally cylindrical logging while drilling tool is received, is determined by the steps of:
determining a bottom contact point of a cross-section of the tool which is orthogonal its longitudinal axis which cross-section contacts the borehole as the tool rotates; separating the cross-section into at least two segments, where one of said segments is called a bottom segment of the borehole which includes the bottom contact point; applying energy into and circumferentially around the borehole from an energy source disposed in the tool, as the tool turns in the borehole; recording measurement signals received at a sensor disposed in the tool from circumferentially spaced locations around the borehole, where the measurement signals are in response to returning energy resulting from the interaction of the applied energy with the formation; associating the measurement signals with a particular segment during the lime such signals are produced in response to energy returning from the formation as the tool turns in the borehole; and deriving an lndlcatlon of a characteristic of the formation as a function of the measurement signals associated with the bottom segment of the borehole.
CA002157101A 1995-08-28 1995-08-28 Logging while drilling method and apparatus for measuring formation characteristics as a function of angular position within a borehole Expired - Fee Related CA2157101C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002157101A CA2157101C (en) 1995-08-28 1995-08-28 Logging while drilling method and apparatus for measuring formation characteristics as a function of angular position within a borehole

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA002157101A CA2157101C (en) 1995-08-28 1995-08-28 Logging while drilling method and apparatus for measuring formation characteristics as a function of angular position within a borehole

Publications (2)

Publication Number Publication Date
CA2157101A1 true CA2157101A1 (en) 1997-03-01
CA2157101C CA2157101C (en) 2002-07-02

Family

ID=4156502

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002157101A Expired - Fee Related CA2157101C (en) 1995-08-28 1995-08-28 Logging while drilling method and apparatus for measuring formation characteristics as a function of angular position within a borehole

Country Status (1)

Country Link
CA (1) CA2157101C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1015081C2 (en) * 1999-05-12 2007-10-05 Schlumberger Holdings Compensation of geometric effects in density measurements during recording-during-drilling.
WO2020097090A1 (en) * 2018-11-07 2020-05-14 Saudi Arabian Oil Company Apparatus and methods of evaluating rock properties while drilling using acoustic sensors installed in the drilling fluid circulation system of a drilling rig
US11231512B2 (en) 2011-09-26 2022-01-25 Saudi Arabian Oil Company Apparatus and methods of evaluating rock properties while drilling using acoustic sensors installed in the drilling fluid circulation system of a drilling rig
CN114961562A (en) * 2022-07-28 2022-08-30 大庆辰平钻井技术服务有限公司 Ultra-short radius U-shaped horizontal well butt joint device and system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1015081C2 (en) * 1999-05-12 2007-10-05 Schlumberger Holdings Compensation of geometric effects in density measurements during recording-during-drilling.
US11231512B2 (en) 2011-09-26 2022-01-25 Saudi Arabian Oil Company Apparatus and methods of evaluating rock properties while drilling using acoustic sensors installed in the drilling fluid circulation system of a drilling rig
WO2020097090A1 (en) * 2018-11-07 2020-05-14 Saudi Arabian Oil Company Apparatus and methods of evaluating rock properties while drilling using acoustic sensors installed in the drilling fluid circulation system of a drilling rig
CN114961562A (en) * 2022-07-28 2022-08-30 大庆辰平钻井技术服务有限公司 Ultra-short radius U-shaped horizontal well butt joint device and system
CN114961562B (en) * 2022-07-28 2022-11-04 大庆辰平钻井技术服务有限公司 Ultra-short radius U-shaped horizontal well butt joint device and system

Also Published As

Publication number Publication date
CA2157101C (en) 2002-07-02

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20150828