CA2488783A1 - Method for in-situ analysis of formation parameters - Google Patents

Method for in-situ analysis of formation parameters Download PDF

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Publication number
CA2488783A1
CA2488783A1 CA002488783A CA2488783A CA2488783A1 CA 2488783 A1 CA2488783 A1 CA 2488783A1 CA 002488783 A CA002488783 A CA 002488783A CA 2488783 A CA2488783 A CA 2488783A CA 2488783 A1 CA2488783 A1 CA 2488783A1
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CA
Canada
Prior art keywords
formation
pressure
flow rate
rate data
formation parameters
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
CA002488783A
Other languages
French (fr)
Other versions
CA2488783C (en
Inventor
Sven Krueger
Eick Niemeyer
Matthias Meister
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Baker Hughes Holdings LLC
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2488783A1 publication Critical patent/CA2488783A1/en
Application granted granted Critical
Publication of CA2488783C publication Critical patent/CA2488783C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • 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
    • E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
    • E21B49/008—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells by injection test; by analysing pressure variations in an injection or production test, e.g. for estimating the skin factor

Abstract

A method of performing a formation rate analysis from pressure and formation flow rate data. Pressure and flow rate data are measured as fluid is withdrawn from a formation. Variable system volume is accounted for. The pressure and flow rate data are correlated using a multiple linear regression technique.
Time derivative terms related to pressure and flow rate are smoothed using a summation technique, thereby providing better correlations than using the time derivatives directly. Formation parameters comprising formation permeability, formation pressure, and fluid compressibility may be determined from the correlation.
CA002488783A 2002-06-06 2003-06-06 Method for in-situ analysis of formation parameters Expired - Fee Related CA2488783C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US10/164,970 2002-06-06
US10/164,970 US6672386B2 (en) 2002-06-06 2002-06-06 Method for in-situ analysis of formation parameters
PCT/US2003/018050 WO2003104602A2 (en) 2002-06-06 2003-06-06 Method for in-situ analysis of formation parameters

Publications (2)

Publication Number Publication Date
CA2488783A1 true CA2488783A1 (en) 2003-12-18
CA2488783C CA2488783C (en) 2009-09-29

Family

ID=29710320

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002488783A Expired - Fee Related CA2488783C (en) 2002-06-06 2003-06-06 Method for in-situ analysis of formation parameters

Country Status (11)

Country Link
US (1) US6672386B2 (en)
EP (1) EP1509669B1 (en)
CN (1) CN100402797C (en)
AU (1) AU2003245418A1 (en)
BR (1) BR0311823B1 (en)
CA (1) CA2488783C (en)
DE (1) DE60320101T2 (en)
DK (1) DK1509669T3 (en)
NO (1) NO20045465L (en)
RU (1) RU2317414C2 (en)
WO (1) WO2003104602A2 (en)

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Also Published As

Publication number Publication date
DK1509669T3 (en) 2008-08-04
DE60320101T2 (en) 2009-05-14
WO2003104602A3 (en) 2004-03-25
US6672386B2 (en) 2004-01-06
BR0311823A (en) 2005-04-05
WO2003104602A2 (en) 2003-12-18
CN100402797C (en) 2008-07-16
CN1671946A (en) 2005-09-21
RU2317414C2 (en) 2008-02-20
CA2488783C (en) 2009-09-29
RU2004139037A (en) 2005-09-10
AU2003245418A1 (en) 2003-12-22
EP1509669A2 (en) 2005-03-02
NO20045465L (en) 2005-03-03
BR0311823B1 (en) 2013-03-05
AU2003245418A8 (en) 2003-12-22
DE60320101D1 (en) 2008-05-15
US20030226663A1 (en) 2003-12-11
EP1509669B1 (en) 2008-04-02

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