NO20150416A1 - Synchronization of distributed measurements in a borehole - Google Patents

Synchronization of distributed measurements in a borehole Download PDF

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Publication number
NO20150416A1
NO20150416A1 NO20150416A NO20150416A NO20150416A1 NO 20150416 A1 NO20150416 A1 NO 20150416A1 NO 20150416 A NO20150416 A NO 20150416A NO 20150416 A NO20150416 A NO 20150416A NO 20150416 A1 NO20150416 A1 NO 20150416A1
Authority
NO
Norway
Prior art keywords
node
processing system
surface processing
nth node
time
Prior art date
Application number
NO20150416A
Other languages
English (en)
Other versions
NO342728B1 (en
Inventor
John D Macpherson
Original Assignee
Baker Hughes 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 Baker Hughes Inc filed Critical Baker Hughes Inc
Publication of NO20150416A1 publication Critical patent/NO20150416A1/no
Publication of NO342728B1 publication Critical patent/NO342728B1/en

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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
    • E21B47/00—Survey of boreholes or wells
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
    • G01V1/24—Recording seismic data
    • G01V1/26—Reference-signal-transmitting devices, e.g. indicating moment of firing of shot
    • 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Geology (AREA)
  • Geophysics (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Mining & Mineral Resources (AREA)
  • Fluid Mechanics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Testing Or Calibration Of Command Recording Devices (AREA)
  • Measurement Of Unknown Time Intervals (AREA)

Abstract

A system and method to synchronize distributed measurements in a borehole are described. The system includes a plurality of wired segments coupled together by couplers and a plurality of nodes configured to measure, process, or relay information obtained in the borehole to a surface processing system, each of the plurality of nodes comprising a local clock and being disposed at one of the couplers or between couplers. The system also includes a surface processing system coupled to a master clock and configured to determine a time offset between the master clock and the local clock of an nth node among the plurality of nodes based on a downhole generated synchronization signal.
NO20150416A 2013-01-17 2015-04-09 Synchronization of distributed measurements in a borehole NO342728B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13/743,720 US9007231B2 (en) 2013-01-17 2013-01-17 Synchronization of distributed measurements in a borehole
PCT/US2014/011824 WO2014113554A1 (en) 2013-01-17 2014-01-16 Synchronization of distributed measurements in a borehole

Publications (2)

Publication Number Publication Date
NO20150416A1 true NO20150416A1 (no) 2015-04-09
NO342728B1 NO342728B1 (en) 2018-07-30

Family

ID=51164726

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20150416A NO342728B1 (en) 2013-01-17 2015-04-09 Synchronization of distributed measurements in a borehole

Country Status (5)

Country Link
US (1) US9007231B2 (no)
BR (1) BR112015015859B1 (no)
GB (1) GB2528183B (no)
NO (1) NO342728B1 (no)
WO (1) WO2014113554A1 (no)

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US9970284B2 (en) * 2012-08-14 2018-05-15 Schlumberger Technology Corporation Downlink path finding for controlling the trajectory while drilling a well
US9458711B2 (en) * 2012-11-30 2016-10-04 XACT Downhole Telemerty, Inc. Downhole low rate linear repeater relay network timing system and method
NO20160971A1 (en) * 2016-06-06 2017-10-16 Inapril As Method for time drift measurement, seismic node and seismic node handling system
US10763918B1 (en) * 2019-06-10 2020-09-01 Baker Hughes, A Ge Company, Llc Time synchronization of bottom hole assembly components via powerline communication
CN110716893B (zh) * 2019-09-12 2020-07-10 中国科学院地质与地球物理研究所 一种随钻声波异步串口信号同步的方法
CN112230291B (zh) * 2020-09-10 2021-10-15 电子科技大学 一种用于井间电磁探测的信号同步收发方法及系统
US11454109B1 (en) * 2021-04-21 2022-09-27 Halliburton Energy Services, Inc. Wireless downhole positioning system

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Also Published As

Publication number Publication date
GB201513529D0 (en) 2015-09-16
GB2528183B (en) 2017-07-05
GB2528183A (en) 2016-01-13
US9007231B2 (en) 2015-04-14
WO2014113554A1 (en) 2014-07-24
US20140197962A1 (en) 2014-07-17
BR112015015859A2 (pt) 2017-07-11
NO342728B1 (en) 2018-07-30
BR112015015859B1 (pt) 2022-02-08

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

Owner name: BAKER HUGHES, US