EP0417263B1 - nispositif et procédé de contrôle d'un forage par analyse des vibrations - Google Patents

nispositif et procédé de contrôle d'un forage par analyse des vibrations Download PDF

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Publication number
EP0417263B1
EP0417263B1 EP90906252A EP90906252A EP0417263B1 EP 0417263 B1 EP0417263 B1 EP 0417263B1 EP 90906252 A EP90906252 A EP 90906252A EP 90906252 A EP90906252 A EP 90906252A EP 0417263 B1 EP0417263 B1 EP 0417263B1
Authority
EP
European Patent Office
Prior art keywords
drilling
signal
frequency band
order
pass
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 - Lifetime
Application number
EP90906252A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0417263A1 (fr
Inventor
Henry Henneuse
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.)
Elf Exploration Production SAS
Original Assignee
Societe National Elf Aquitaine
Societe Nationale Elf Aquitaine Production SA
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.)
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Publication date
Application filed by Societe National Elf Aquitaine, Societe Nationale Elf Aquitaine Production SA filed Critical Societe National Elf Aquitaine
Priority to AT90906252T priority Critical patent/ATE102289T1/de
Publication of EP0417263A1 publication Critical patent/EP0417263A1/fr
Application granted granted Critical
Publication of EP0417263B1 publication Critical patent/EP0417263B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • E21B44/00—Automatic 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
    • E21B44/005—Below-ground automatic control systems
    • 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
    • E21B12/00—Accessories for drilling tools
    • E21B12/02—Wear indicators
    • 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
    • E21B44/00—Automatic 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

Definitions

  • the present invention relates to a device for the auditory representation of the mechanical phenomena of a borehole and its use in a method of conducting the borehole.
  • Such a method makes it possible to know the lithological properties of the rocks attacked by the drilling tool by taking with the aid of an accelerometer the speed of rotation of the drilling rod and taking with the help of strain gauges of the signals. corresponding to the vibrational stresses to which the rod is subjected.
  • a signal is obtained which allows, by this process, to know the lithological properties of the rocks attacked by the tool.
  • a first object of the invention is to propose a device making it possible, after processing a signal, to deduce information relating to phenomena such as the recovery of the bottom of the drill bit or the jamming then relaxation by adhesion of the drill bit against the wall, or the rupture of certain teeth of the drill bit or finally the failure to recover the bottom of the drill bit.
  • the auditory representation device of the mechanical phenomena of the interaction between a drilling tool and the drilled rock comprises means for collecting, by an accelerometric sensor at a point located on the drilling string, a signal vibratory representative of the vibration of the tool on the working face, means (45, 31, 32) for filtering the signal in a frequency band from 10 to 200 Hz, characterized in that the device comprises means for amplification for the filtered signal suitable for making this signal audible to an operator in order to deduce therefrom information on the conduct of drilling.
  • the filtering means are constituted by identical cells of second order high pass active filter selectively put in series with identical cells with second order low pass active filter to constitute the frequencies of cut off the frequency band.
  • the frequency band is from 20 to 200 Hz for a downhole motor.
  • the frequency band is from 10 to 100 Hz for a surface motor.
  • Another object of the invention is to propose a simple device, easily transportable and usable on a drilling site.
  • the device comprises means of autonomous supply by battery of the sensor and of the processing circuits.
  • a final object of the invention is to propose a use of the device in a method of conducting a drilling.
  • FIG. 1 there is shown in (1) a drilling derrick, in (2) the upper part of the derrick carrying the set of fixed pulleys (3).
  • This series of pulleys (3) is connected to the block carrying the set of movable pulleys (5) by a set of cables (4).
  • To this block (5) is fixed a hook (6) which supports an injection head (7).
  • the upper part of this injection head (7) is fixed while the lower part is movable in rotation by means of a rolling system.
  • An injection hose (8) is connected, on the one hand to the injection head (7) and, on the other hand to all of the slurry pumps not shown in the drawing.
  • the rotary drive rod (9) of the drill string is shown in square form and in the following we will simply call it a square rod.
  • This rod (9) is rotated by the rotation table (10) itself driven by a motor not shown.
  • the reference (11) schematically represents a wellbore into which the drill string (12) penetrates.
  • This drill string (12) is provided at its lower part with a drilling tool (20).
  • a measuring device (13) is interposed between the injection head and the square rod.
  • this device (13) can be fixed on the injection head (7).
  • This measuring device (13) is connected by a cable (14) to the device (45) allowing the processing of electrical graders.
  • the measuring device consists of an accelerometric sensor (140) which transforms the variations in acceleration from the end of the rod into an analog electrical signal.
  • This analog electrical signal is processed by the processing device (45) of Figure 4, consisting of an amplification circuit, shown in Figure 2, a filtering circuit shown in Figure 3, again from a preamplification (47, 470) of the filtered signal to then exit on a conventional audio amplifier (46) allowing listening to the signal thus obtained.
  • the signal delivered by the sensor (140) is sent to the input of an amplifier whose loop-back resistance of the output on the input can be modified by a rotary contact (40) which makes it possible to selectively relate one of the resistors (400, 401, 402, 403) between the output and the input of the amplifier (404).
  • a second amplifier (41) includes in its loop-back circuit a variable resistor (410) which makes it possible to carry out fine tuning within the selected amplification range.
  • the output signal of the amplifier (41) is sent, on the one hand to the input of the filtering circuit of FIG. 3 and on the other hand, via a peak detector circuit (420) on the display (42) of FIG. 4.
  • the output signal of the amplifier (41) is sent via a rectifier circuit (43) and an integrator circuit (44) to an output (S2) of the measuring device.
  • the signal arrives at the input (30) of a set of filters constituted by two cells of active low-pass filters of the second order (31a, 31b) followed by four cells of active high-pass filters of the second order (32a, 32b, 32c, 32d) and two second order low pass active filter cells (31c, 31d).
  • These filters can be connected in series with each other or be short-circuited totally or partially depending on the position of the buttons of the rotary contacts (490, 491).
  • the output (33) of the filtering circuit is sent to the input of a second preamplification circuit (47, 470,48) of the same type as that described in FIG. 2.
  • This second preamplification circuit sends its output signal provided by the output of the amplifier (470) to an audio amplification circuit (46) of conventional constitution well known to those skilled in the art for delivering on a headphone jack the signal resulting from the processing of the invention and allowing to follow the evolution of drilling.
  • Each second-order low-pass filter cell is constituted in the same way as the cell (31a) and comprises two resistors (310, 311) connected in series to the negative input of a differential amplifier (313), the positive input is connected by a resistor (312) to ground.
  • the point common to the two resistors (310, 311) is connected on the one hand by the capacitor (316) to ground and, on the other hand by a resistance (315) at the output of the amplifier (313).
  • the output of the amplifier (313) is also connected by a capacitor (314) to the negative input of this amplifier (313).
  • Each high-pass filter cell is constituted in the same way as the cell (32a) and comprises two capacitors (320, 321) connected in series and connected to the negative input of a differential amplifier (323) whose input positive is connected by a resistor (322) to ground.
  • the point common to the two capacitors (320, 321) is connected, on the one hand by a resistor (326) to ground, and on the other hand by a capacitor (325) at the output of the amplifier (323).
  • the output of the amplifier (323) is also connected by a resistor (324) to the input of the differential amplifier (323).
  • the filter thus constituted by a succession of cells (31a to 31d) and (32a to 32d) makes it possible to filter the signal delivered by the preamp in the frequency band from 10 to 200 Hz according to the positions taken by the buttons of the rotary contacts ( 490, 491)
  • the button (490) is in the position (490d, fig 4) the contact (490 D, fig 3) corresponding is closed and connects the input of the cell (32a) to the output of the cell (32d) , thus short-circuiting all the high-pass cells (32a to 32d).
  • This filter (32d) has its resistive and capacitive elements calculated to establish the cutoff frequency at 10 Hz.
  • the button (490, fig 4) When the button (490, fig 4) is in the position (490b, fig 4) the corresponding contact (490B, fig 3) is closed and connects the cell inlet (32a) to the cell outlet (32b) thus short-circuiting the cells (32a) and (32b).
  • the resistive and capacitive elements of the cell (32c) are calculated so that the two cells (32c, 32d) put in series have a cutoff frequency of 20 Hz.
  • the button (490) When the button (490) is in the position (490a, fig 4) the corresponding contact (490A) connects the input of the cell (32a) to its output.
  • the cells (32b) to (32d) are in series and the resistive and capacitive elements of the cell (32b) are calculated to establish the cutoff frequency of all three cells in series at 30 Hz.
  • the button (491) By pressing the button (491) it is possible to select the low-pass filter cells introduced into the filtering circuit.
  • the button (491) When the button (491) is in the position (491abc) the cells (31a) and (31b) are short-circuited by the closed contact (491 AB) connecting the input of the cell (31a) to the output of (31b ) and the cell (31c) is also short-circuited by the closed contact (491C) connecting the input of (31c) to its output.
  • the resistive and capacitive elements of the cell (31d) are calculated to establish the cutoff frequency at 200 Hz.
  • the cells (31a) and (31b) are short-circuited by the contact (491AB).
  • the resistive and capacitive elements of the cell (31c) are calculated so that the cut-off frequency of the assembly formed by the two cells (31c) and (31d) put in series is 150 Hz.
  • the contact (491A) is closed and connects the input of the cell (31a) directly to its output.
  • the elements of (31b) are calculated so that the filter constituted by the series association of the 3 cells (31b, 31c, 31d) has a cut-off frequency of 100 Hz.
  • the signal thus filtered is then transmitted to a second preamp and to an audio amplifier making it possible to deliver an audio signal to a headphone jack.
  • the listening or viewing device is provided with an autonomous battery supply.
  • the signal delivered in the frequency band from 10 to 200 Hz makes it possible to detect by listening the anomalies which can occur during drilling.
  • the signal thus filtered eliminates all the other noises due to drilling, such as for example the noises of mud, and retains only the noises corresponding to the contact of the drill bit with the drilling. In this way an experienced man can take adequate corrective action based on the observations made.

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  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Earth Drilling (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
EP90906252A 1989-03-31 1990-03-30 nispositif et procédé de contrôle d'un forage par analyse des vibrations Expired - Lifetime EP0417263B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90906252T ATE102289T1 (de) 1989-03-31 1990-03-30 Vorrichtung und verfahren zum steuern einer bohrung durch analysierung der vibrationen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8904234A FR2645205B1 (fr) 1989-03-31 1989-03-31 Dispositif de representation auditive et/ou visuelle des phenomenes mecaniques dans un forage et utilisation du dispositif dans un procede de conduite d'un forage
FR8904234 1989-03-31

Publications (2)

Publication Number Publication Date
EP0417263A1 EP0417263A1 (fr) 1991-03-20
EP0417263B1 true EP0417263B1 (fr) 1994-03-02

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP90906252A Expired - Lifetime EP0417263B1 (fr) 1989-03-31 1990-03-30 nispositif et procédé de contrôle d'un forage par analyse des vibrations

Country Status (9)

Country Link
US (1) US5141061A (no)
EP (1) EP0417263B1 (no)
JP (1) JP2718822B2 (no)
CA (1) CA2030520C (no)
DE (1) DE69006986T2 (no)
FR (1) FR2645205B1 (no)
NO (1) NO300744B1 (no)
OA (1) OA09275A (no)
WO (1) WO1990012195A1 (no)

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FR2673237B1 (fr) * 1991-02-25 1999-02-26 Elf Aquitaine Methode de surveillance automatique de l'etat vibratoire d'une garniture de forage.
JPH0538610A (ja) * 1991-08-06 1993-02-19 Nec Corp 多層印刷配線板の検査方法
US5321981A (en) * 1993-02-01 1994-06-21 Baker Hughes Incorporated Methods for analysis of drillstring vibration using torsionally induced frequency modulation
NO940209D0 (no) * 1993-02-19 1994-01-20 Baker Hughes Inc Fremgangsmaate og anordning for aa detektere borrspinn
US5679894A (en) * 1993-05-12 1997-10-21 Baker Hughes Incorporated Apparatus and method for drilling boreholes
US5358059A (en) * 1993-09-27 1994-10-25 Ho Hwa Shan Apparatus and method for the dynamic measurement of a drill string employed in drilling
US5705747A (en) * 1995-01-13 1998-01-06 Henry Filters, Inc. Methods and system for scaleable liquid display and control
FR2750159B1 (fr) * 1996-06-24 1998-08-07 Inst Francais Du Petrole Methode et systeme d'estimation en temps reel d'au moins un parametre lie au comportement d'un outil de fond de puits
FR2750160B1 (fr) * 1996-06-24 1998-08-07 Inst Francais Du Petrole Methode et systeme d'estimation en temps reel d'au moins un parametre lie au deplacement d'un outil de forage
US6196335B1 (en) * 1998-06-29 2001-03-06 Dresser Industries, Inc. Enhancement of drill bit seismics through selection of events monitored at the drill bit
GB9824248D0 (en) 1998-11-06 1998-12-30 Camco Int Uk Ltd Methods and apparatus for detecting torsional vibration in a downhole assembly
EP1149228B1 (en) * 1998-12-12 2005-07-27 Halliburton Energy Services, Inc. Apparatus for measuring downhole drilling efficiency parameters
FR2792363B1 (fr) 1999-04-19 2001-06-01 Inst Francais Du Petrole Methode et systeme de detection du deplacement longitudinal d'un outil de forage
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EA022613B1 (ru) * 2006-06-09 2016-02-29 Юниверсити Корт Ов Де Юниверсити Ов Абердин Усиленное резонансом бурение: способ и устройство
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US10551516B2 (en) 2011-09-26 2020-02-04 Saudi Arabian Oil Company Apparatus and methods of evaluating rock properties while drilling using acoustic sensors installed in the drilling fluid circulation system of a drilling rig
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Also Published As

Publication number Publication date
DE69006986T2 (de) 1994-09-08
WO1990012195A1 (fr) 1990-10-18
JPH03505110A (ja) 1991-11-07
US5141061A (en) 1992-08-25
DE69006986D1 (de) 1994-04-07
JP2718822B2 (ja) 1998-02-25
FR2645205A1 (fr) 1990-10-05
CA2030520A1 (fr) 1990-10-01
NO300744B1 (no) 1997-07-14
NO905098L (no) 1991-01-22
EP0417263A1 (fr) 1991-03-20
OA09275A (fr) 1992-08-31
CA2030520C (fr) 1997-11-18
FR2645205B1 (fr) 1991-06-07
NO905098D0 (no) 1990-11-26

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