CA2147610A1 - System for measuring the distance between two parallel boreholes or wells - Google Patents

System for measuring the distance between two parallel boreholes or wells

Info

Publication number
CA2147610A1
CA2147610A1 CA2147610A CA2147610A CA2147610A1 CA 2147610 A1 CA2147610 A1 CA 2147610A1 CA 2147610 A CA2147610 A CA 2147610A CA 2147610 A CA2147610 A CA 2147610A CA 2147610 A1 CA2147610 A1 CA 2147610A1
Authority
CA
Canada
Prior art keywords
distance
wells
source
ratio
sensor
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
CA2147610A
Other languages
French (fr)
Other versions
CA2147610C (en
Inventor
Arthur F. Kuckes
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.)
Halliburton Energy Services Inc
Original Assignee
Arthur F. Kuckes
Vector Magnetics, Inc.
Halliburton Energy Services, 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 Arthur F. Kuckes, Vector Magnetics, Inc., Halliburton Energy Services, Inc. filed Critical Arthur F. Kuckes
Publication of CA2147610A1 publication Critical patent/CA2147610A1/en
Application granted granted Critical
Publication of CA2147610C publication Critical patent/CA2147610C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/18—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging
    • G01V3/26—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging operating with magnetic or electric fields produced or modified either by the surrounding earth formation or by the detecting device
    • 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
    • E21B47/00—Survey of boreholes or wells
    • E21B47/02—Determining slope or direction
    • E21B47/022—Determining slope or direction of the borehole, e.g. using geomagnetism
    • E21B47/0228—Determining slope or direction of the borehole, e.g. using geomagnetism using electromagnetic energy or detectors therefor

Abstract

The distance from a borehole (24) to a nearby target well (14) is determined by positioning a magnetic sensor (40) in the borehole (24) at a known depth and providing a magnetic source (50) in the target well (14) and by moving the source (50) to depths above and below the depth of the sensor (40) and detecting maximum field vectors. The distance the source (50) moves between the maxima is the distance between the wells. In another embodiment, the ratio of source magnetic field vectors is used to determine the ratio of the difference in depth z between the source (50) and the sensor (40) to the lateral distance r between the wells. This ratio z/r is then used to determine the separation of the wells.
CA002147610A 1992-11-06 1993-11-04 System for measuring the distance between two parallel boreholes or wells Expired - Lifetime CA2147610C (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US97283592A 1992-11-06 1992-11-06
US972,835 1992-11-06
US133,295 1993-10-08
US08/133,295 US5485089A (en) 1992-11-06 1993-10-08 Method and apparatus for measuring distance and direction by movable magnetic field source
PCT/US1993/010388 WO1994011762A1 (en) 1992-11-06 1993-11-04 Movable solenoid source in target well for location measurement

Publications (2)

Publication Number Publication Date
CA2147610A1 true CA2147610A1 (en) 1994-05-26
CA2147610C CA2147610C (en) 2000-01-04

Family

ID=26831238

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002147610A Expired - Lifetime CA2147610C (en) 1992-11-06 1993-11-04 System for measuring the distance between two parallel boreholes or wells

Country Status (4)

Country Link
US (2) US5485089A (en)
EP (1) EP0669007B1 (en)
CA (1) CA2147610C (en)
WO (1) WO1994011762A1 (en)

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CA2147610C (en) 2000-01-04
EP0669007A1 (en) 1995-08-30
EP0669007A4 (en) 1996-09-18
EP0669007B1 (en) 2000-07-26
WO1994011762A1 (en) 1994-05-26
USRE36569E (en) 2000-02-15
US5485089A (en) 1996-01-16

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