EP2749731A1 - Calibre intégré de fond de puits - Google Patents

Calibre intégré de fond de puits Download PDF

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Publication number
EP2749731A1
EP2749731A1 EP12306704.3A EP12306704A EP2749731A1 EP 2749731 A1 EP2749731 A1 EP 2749731A1 EP 12306704 A EP12306704 A EP 12306704A EP 2749731 A1 EP2749731 A1 EP 2749731A1
Authority
EP
European Patent Office
Prior art keywords
caliper
tool
measurement
confidence
measurements
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.)
Withdrawn
Application number
EP12306704.3A
Other languages
German (de)
English (en)
Inventor
Mauro Manclossi
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.)
Services Petroliers Schlumberger SA
Gemalto Terminals Ltd
Prad Research and Development Ltd
Schlumberger Technology BV
Schlumberger Holdings Ltd
Original Assignee
Services Petroliers Schlumberger SA
Gemalto Terminals Ltd
Prad Research and Development Ltd
Schlumberger Technology BV
Schlumberger Holdings 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 Services Petroliers Schlumberger SA, Gemalto Terminals Ltd, Prad Research and Development Ltd, Schlumberger Technology BV, Schlumberger Holdings Ltd filed Critical Services Petroliers Schlumberger SA
Priority to EP12306704.3A priority Critical patent/EP2749731A1/fr
Priority to PCT/US2013/075556 priority patent/WO2014105504A1/fr
Priority to US14/651,664 priority patent/US20150315904A1/en
Publication of EP2749731A1 publication Critical patent/EP2749731A1/fr
Withdrawn legal-status Critical Current

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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
    • E21B47/08—Measuring diameters or related dimensions at the borehole
    • E21B47/085—Measuring diameters or related dimensions at the borehole using radiant means, e.g. acoustic, radioactive or electromagnetic
    • 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
    • E21B47/08—Measuring diameters or related dimensions at the borehole

Definitions

  • the caliper measurement from the ultrasonic caliper tool 70 is the measurement of choice in drilling scenarios characterized by high values of Pe of the drilling fluid 24.
  • the caliper derived from the gamma density tool 72 may be preferred in cases of high mud weight of the drilling fluid 24.
  • the caliper measurement from the gamma density tool 72 may perform more reliably than the ultrasonic caliper tool 70 if the LWD integrated caliper tool 40 is run eccentered.
  • the LWD integrated caliper tool 40 may obtain a first caliper measurement from a first caliper tool (e.g., the ultrasonic caliper tool 70) (block 132) and obtain a second caliper measurement from a second caliper tool (e.g., the gamma density tool 72) (block 134).
  • the data processing circuitry 54 may determine a confidence factor for each of the caliper measurements according to various weight factors associated with the conditions under which the caliper measurements where obtained (block 136).
  • the data processing circuitry 54 may transform the various single caliper measurements into the combined integrated caliper answer 62 by ascertaining a weighted average of the caliper measurements according to the respective confidence factors (block 138).
  • Every weight factor may have a particular function shape associated with it. Namely, each weight factor may be computed as a function of a particular parameter or measurement that defines the function shape.
  • the functions may be derived from experimental databases, measurement specifications, field data, and/or computer modeling. Some examples of functional forms of weight factors appear in FIGS. 7 and 8 .
  • a plot 150 provides a weight factor WDRPM (ordinate 152) as a function of the rotation speed of the LWD integrated caliper tool 40 (abscissa 154).
  • the weight factor WDRPM is a value between 0 and 1 representing the reliability of the caliper measurement from the gamma density tool 72 as the rotation speed of the LWD integrated caliper tool 40 changes.

Landscapes

  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Geophysics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Electromagnetism (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
EP12306704.3A 2012-12-28 2012-12-28 Calibre intégré de fond de puits Withdrawn EP2749731A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP12306704.3A EP2749731A1 (fr) 2012-12-28 2012-12-28 Calibre intégré de fond de puits
PCT/US2013/075556 WO2014105504A1 (fr) 2012-12-28 2013-12-17 Diamètre de puits de forage intégré
US14/651,664 US20150315904A1 (en) 2012-12-28 2013-12-17 Integrated Wellbore Caliper

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12306704.3A EP2749731A1 (fr) 2012-12-28 2012-12-28 Calibre intégré de fond de puits

Publications (1)

Publication Number Publication Date
EP2749731A1 true EP2749731A1 (fr) 2014-07-02

Family

ID=47561285

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12306704.3A Withdrawn EP2749731A1 (fr) 2012-12-28 2012-12-28 Calibre intégré de fond de puits

Country Status (3)

Country Link
US (1) US20150315904A1 (fr)
EP (1) EP2749731A1 (fr)
WO (1) WO2014105504A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR112016028358A2 (pt) * 2014-07-07 2017-08-22 Halliburton Energy Services Inc método e sistema para a identificação de escama, e, método para a identificação e tratamento de escama.
US11422279B2 (en) 2017-01-19 2022-08-23 Schlumberger Technology Corporation Method and system for estimating borehole condition using stoneley measurement
US20190100992A1 (en) * 2017-09-29 2019-04-04 Baker Hughes, A Ge Company, Llc Downhole acoustic system for determining a rate of penetration of a drill string and related methods
CN111123378B (zh) * 2019-12-25 2022-06-03 中国石油天然气股份有限公司 确定划分岩性类型的伽马射线强度临界值的方法及装置
US11753926B2 (en) * 2021-07-01 2023-09-12 Saudi Arabian Oil Company Method and system for predicting caliper log data for descaled wells

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0646697A1 (fr) * 1993-09-30 1995-04-05 Halliburton Company Dispositif et méthode pour mesurer les dimensions dans un trou de sorage
US6384605B1 (en) * 1999-09-10 2002-05-07 Schlumberger Technology Corporation Method and apparatus for measurement of borehole size and the resistivity of surrounding earth formations
US20030114987A1 (en) * 2001-12-13 2003-06-19 Edwards John E. Method for determining wellbore diameter by processing multiple sensor measurements
US7073378B2 (en) 2003-08-07 2006-07-11 Schlumberger Technology Corporation Integrated logging tool for borehole
US20090037111A1 (en) * 2007-07-30 2009-02-05 Schlumberger Technology Corporation System and Method for Automated Data Analysis and Parameter Selection

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7129477B2 (en) * 2002-04-03 2006-10-31 Baker Hughes Incorporated Method of processing data from a dual detector LWD density logging instrument coupled with an acoustic standoff measurement

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0646697A1 (fr) * 1993-09-30 1995-04-05 Halliburton Company Dispositif et méthode pour mesurer les dimensions dans un trou de sorage
US6384605B1 (en) * 1999-09-10 2002-05-07 Schlumberger Technology Corporation Method and apparatus for measurement of borehole size and the resistivity of surrounding earth formations
US20030114987A1 (en) * 2001-12-13 2003-06-19 Edwards John E. Method for determining wellbore diameter by processing multiple sensor measurements
US7073378B2 (en) 2003-08-07 2006-07-11 Schlumberger Technology Corporation Integrated logging tool for borehole
US20090037111A1 (en) * 2007-07-30 2009-02-05 Schlumberger Technology Corporation System and Method for Automated Data Analysis and Parameter Selection

Also Published As

Publication number Publication date
US20150315904A1 (en) 2015-11-05
WO2014105504A1 (fr) 2014-07-03

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