CA2320576C - Method and apparatus for communication with a downhole tool - Google Patents

Method and apparatus for communication with a downhole tool Download PDF

Info

Publication number
CA2320576C
CA2320576C CA 2320576 CA2320576A CA2320576C CA 2320576 C CA2320576 C CA 2320576C CA 2320576 CA2320576 CA 2320576 CA 2320576 A CA2320576 A CA 2320576A CA 2320576 C CA2320576 C CA 2320576C
Authority
CA
Canada
Prior art keywords
signal
signal data
window
energy
noise
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.)
Expired - Fee Related
Application number
CA 2320576
Other languages
English (en)
French (fr)
Other versions
CA2320576A1 (en
Inventor
William B. Underhill
Cengiz Esmersoy
Brian Clark
Jean-Michel Hache
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
Priority claimed from US09/514,866 external-priority patent/US6308137B1/en
Application filed by Schlumberger Canada Ltd filed Critical Schlumberger Canada Ltd
Publication of CA2320576A1 publication Critical patent/CA2320576A1/en
Application granted granted Critical
Publication of CA2320576C publication Critical patent/CA2320576C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/14Obtaining from a multiple-zone well

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Stored Programmes (AREA)
CA 2320576 1999-10-29 2000-09-25 Method and apparatus for communication with a downhole tool Expired - Fee Related CA2320576C (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US42980499A 1999-10-29 1999-10-29
US09/429,804 1999-10-29
US09/514,866 2000-02-28
US09/514,866 US6308137B1 (en) 1999-10-29 2000-02-28 Method and apparatus for communication with a downhole tool

Publications (2)

Publication Number Publication Date
CA2320576A1 CA2320576A1 (en) 2001-04-29
CA2320576C true CA2320576C (en) 2004-11-02

Family

ID=27028350

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2320576 Expired - Fee Related CA2320576C (en) 1999-10-29 2000-09-25 Method and apparatus for communication with a downhole tool

Country Status (8)

Country Link
AU (1) AU748573B2 (nl)
CA (1) CA2320576C (nl)
EG (1) EG22537A (nl)
GB (1) GB2355739B (nl)
GC (1) GC0000143A (nl)
ID (1) ID27930A (nl)
NL (1) NL1016341C2 (nl)
NO (1) NO333492B1 (nl)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007149324A2 (en) * 2006-06-16 2007-12-27 Baker Hughes Incorporated Estimation of properties of mud
US7765862B2 (en) * 2007-11-30 2010-08-03 Schlumberger Technology Corporation Determination of formation pressure during a drilling operation

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1420573A1 (ru) * 1987-10-21 1988-08-30 Волжское отделение института геологии и разработки горючих ископаемых Устройство дл автоматической настройки коррел ционного измерител
FR2641387B1 (fr) * 1988-12-30 1991-05-31 Inst Francais Du Petrole Methode et dispositif de telecommande d'equipement de train de tiges par sequence d'information
US5579283A (en) 1990-07-09 1996-11-26 Baker Hughes Incorporated Method and apparatus for communicating coded messages in a wellbore
NO301095B1 (no) * 1994-12-05 1997-09-08 Norsk Hydro As Metode og utstyr for utforelse av malinger under boring etter olje og gass
US5995449A (en) * 1995-10-20 1999-11-30 Baker Hughes Inc. Method and apparatus for improved communication in a wellbore utilizing acoustic signals
GB2312063B (en) * 1996-04-09 1998-12-30 Anadrill Int Sa Signal recognition system for wellbore telemetry
US6388577B1 (en) * 1997-04-07 2002-05-14 Kenneth J. Carstensen High impact communication and control system
NO316537B1 (no) * 1997-12-18 2004-02-02 Baker Hughes Inc Anordning og fremgangsmåte for måling-under-boring ved hjelp av støtputemonterte følere
US6078868A (en) * 1999-01-21 2000-06-20 Baker Hughes Incorporated Reference signal encoding for seismic while drilling measurement

Also Published As

Publication number Publication date
NO333492B1 (no) 2013-06-24
NL1016341C2 (nl) 2002-08-27
GB0021360D0 (en) 2000-10-18
NO20005409L (no) 2001-04-30
AU748573B2 (en) 2002-06-06
CA2320576A1 (en) 2001-04-29
GB2355739A (en) 2001-05-02
NO20005409D0 (no) 2000-10-27
GB2355739B (en) 2001-12-19
AU6134300A (en) 2001-05-31
EG22537A (en) 2003-03-31
NL1016341A1 (nl) 2001-05-02
ID27930A (id) 2001-05-03
GC0000143A (en) 2005-06-29

Similar Documents

Publication Publication Date Title
US6308137B1 (en) Method and apparatus for communication with a downhole tool
US6078868A (en) Reference signal encoding for seismic while drilling measurement
US6850462B2 (en) Memory cement bond logging apparatus and method
US4293936A (en) Telemetry system
US7310580B2 (en) Method for borehole measurement of formation properties
US4757479A (en) Method and apparatus for cement bond logging
CA2164377C (en) Method and equipment for performing measurements while drilling for oil and gas
US6912465B2 (en) System and method for determining downhole clock drift
US5031155A (en) Compression and reconstruction of sonic data
US6151554A (en) Method and apparatus for computing drill bit vibration power spectral density
US4951266A (en) Method of filtering sonic well logging data
NO340254B1 (no) Fremgangsmåter og system for detektering av første ankomster av bølgeformer av interesse
CA2300599A1 (en) Seismic systems and methods for downhole clock synchronization
EP1613981B1 (en) Use of pattern recognition in a measurement of formation transit time for seismic checkshots
US6990045B2 (en) Methods for acquiring seismic data while tripping
US8995224B2 (en) Real-time velocity and pore-pressure prediction ahead of drill bit
Al-Muhaidib et al. DrillCam: A fully integrated real-time system to image and predict ahead and around the bit
US20180372907A1 (en) Using an adjusted drive pulse in formation evaluation
CA2320576C (en) Method and apparatus for communication with a downhole tool
US11914089B2 (en) Method and device for determining sonic slowness
Moerz et al. Composite velocity profile of shelf Site 1103 (ODP Leg 178, western Antarctic Peninsula)

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20180925