WO2002038908A3 - Differential sensor measurements to detect drill bit failure - Google Patents

Differential sensor measurements to detect drill bit failure Download PDF

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Publication number
WO2002038908A3
WO2002038908A3 PCT/US2001/047280 US0147280W WO0238908A3 WO 2002038908 A3 WO2002038908 A3 WO 2002038908A3 US 0147280 W US0147280 W US 0147280W WO 0238908 A3 WO0238908 A3 WO 0238908A3
Authority
WO
WIPO (PCT)
Prior art keywords
drill bit
sensor
sensor measurements
bit failure
differential sensor
Prior art date
Application number
PCT/US2001/047280
Other languages
French (fr)
Other versions
WO2002038908A2 (en
WO2002038908A9 (en
Inventor
Roger L Schultz
Jesus Orlando De
Andrew J Osborne Jr
Original Assignee
Halliburton Energy Serv Inc
Roger L Schultz
Jesus Orlando De
Andrew J Osborne Jr
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 Halliburton Energy Serv Inc, Roger L Schultz, Jesus Orlando De, Andrew J Osborne Jr filed Critical Halliburton Energy Serv Inc
Priority to AU2002230683A priority Critical patent/AU2002230683A1/en
Publication of WO2002038908A2 publication Critical patent/WO2002038908A2/en
Publication of WO2002038908A9 publication Critical patent/WO2002038908A9/en
Publication of WO2002038908A3 publication Critical patent/WO2002038908A3/en

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00Survey of boreholes or wells
    • E21B47/12Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
    • E21B47/14Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves
    • E21B47/18Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves through the well fluid, e.g. mud pressure pulse telemetry
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B12/00Accessories for drilling tools
    • E21B12/02Wear indicators
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B41/00Equipment or details not covered by groups E21B15/00 - E21B40/00
    • E21B41/0085Adaptations of electric power generating means for use in boreholes
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B44/00Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B2200/00Special features related to earth drilling for obtaining oil, gas or water
    • E21B2200/22Fuzzy logic, artificial intelligence, neural networks or the like

Abstract

An apparatus and accompanying method for monitoring and reporting downhole bit failure. Individual sensors (106) are placed on a sub (104) which is separate from the drill bit (108) itself, and are powered by a vibration driven power system. The sensor readings are used to compute values which represent the ratios of sensor readings on one sensor (106) in relation to the readings on one or more other sensors (106). This creates a self-calibrating sensor system that accounts for changes in downhole conditions which might cause sensor readings to fluctuate, but which do not indicate failure.
PCT/US2001/047280 2000-11-07 2001-11-07 Differential sensor measurements to detect drill bit failure WO2002038908A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002230683A AU2002230683A1 (en) 2000-11-07 2001-11-07 Differential sensor measurements to detect drill bit failure

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US24704200P 2000-11-07 2000-11-07
US60/247,042 2000-11-07

Publications (3)

Publication Number Publication Date
WO2002038908A2 WO2002038908A2 (en) 2002-05-16
WO2002038908A9 WO2002038908A9 (en) 2002-09-26
WO2002038908A3 true WO2002038908A3 (en) 2002-12-27

Family

ID=22933307

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/047280 WO2002038908A2 (en) 2000-11-07 2001-11-07 Differential sensor measurements to detect drill bit failure

Country Status (3)

Country Link
US (1) US6648082B2 (en)
AU (1) AU2002230683A1 (en)
WO (1) WO2002038908A2 (en)

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WO2002038908A2 (en) 2002-05-16
US20020148644A1 (en) 2002-10-17
WO2002038908A9 (en) 2002-09-26
US6648082B2 (en) 2003-11-18

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