EP0526619B1 - Methode de surveillance automatique de l'etat vibratoire d'une garniture de forage - Google Patents

Methode de surveillance automatique de l'etat vibratoire d'une garniture de forage Download PDF

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Publication number
EP0526619B1
EP0526619B1 EP92906888A EP92906888A EP0526619B1 EP 0526619 B1 EP0526619 B1 EP 0526619B1 EP 92906888 A EP92906888 A EP 92906888A EP 92906888 A EP92906888 A EP 92906888A EP 0526619 B1 EP0526619 B1 EP 0526619B1
Authority
EP
European Patent Office
Prior art keywords
spectrum
sensors
user
drilling
instabilities
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
EP92906888A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0526619A1 (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
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Application filed by Societe National Elf Aquitaine, Societe Nationale Elf Aquitaine Production SA filed Critical Societe National Elf Aquitaine
Publication of EP0526619A1 publication Critical patent/EP0526619A1/fr
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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
    • 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

Definitions

  • the present invention relates to a method for automatically monitoring the vibrational state of a drill string.
  • the vibrational information emanating from these sensors conceals an obvious complexity for a non-specialist wishing to use it. Indeed, traditional spectrum analyzers generally only produce curves whose analysis is not immediate. However, the master driller must instantly know the vibratory behavior of its lining, and in particular a possible instability of said behavior in order to be able to adjust the various drilling parameters as quickly as possible, namely the weight on the tool, the speed of rotation as well as the flow of mud.
  • the lining constitutes a mechanical assembly having its own modes which is capable of responding to the various mechanical stresses occurring during drilling, such as the work of the tool on the rock and the interactions between the well and said lining, this being true both axially as well as laterally or in torsion.
  • Document WO 90/12195 describes a device intended to present, acoustically or visually, to a user, the mechanical phenomena of a borehole.
  • the device comprises an accelerometric sensor at the top of the drill string which emits a signal, which, after treatment with filters, and converted into an auditory or visual signal.
  • a method of detecting the wear of a drilling tool in order to prevent the tool from breaking at the bottom of the well is described in document US-Re-28,436.
  • the method is based on the detection of oscillations characteristic of the drill string, oscillations having a predetermined amplitude and frequency. If such oscillations are detected, an alarm alerts an operator.
  • the present invention therefore relates to a method for automatically monitoring the vibrational state of a drill string which makes it possible to use the measurements provided by a set of sensors located at the top of a drill string, in particular by warning a user in a simple way of possible instabilities in these measurements.
  • the monitoring system comprises a battery of programmable filters 8 as well as quadratic mean converters, more commonly called “root mean square” RMS 10 or anti-aliasing filters 12 making it possible to process the signals from sensors 14 arranged on the drill string 16; the data coming from the converters 10 are grouped together at the level of a multiplexer 18 then transmitted to an analog-digital converter 20 and finally to one or several processors 22.
  • the microprocessor (s) 22 are optionally assisted by one or more signal processors 24 and are coupled to an interface 26; the user can transmit information to the processor (s) 22 by means of a keyboard 28 and a communication link 30. It is possible to enter certain information concerning the reference spectra 32 at the interface 26 relating to each sensor, said interface 26 being connected to auditory 34 and / or visual signaling means 36.
  • the processor compares said value with that of reference previously determined, this comparison being carried out in the form of the ratio of the two values, which makes it possible to dispense with a calibration of the always delicate sensors.
  • the master driller is alerted and can, if he deems it necessary, vary the drilling parameters.
  • the master driller If the level of at least one of them exceeds 100 times its reference level, the master driller is alerted to the existence of a very unstable situation and must remedy it as soon as possible.
  • the processing at the spectra level is of the same type. Indeed, the spectra developed on each measurement by the processor are compared lines to lines with those of reference. As for the effective values, the criteria corresponding to ratios respectively 10 and 100 times larger than the reference are retained in the illustrated example. In either case, the values 10 and 100 are arbitrary and are subject to change.
  • the present invention makes it possible, in a simple manner, to signal to the master-driller the level of instability of the various quantities measured by the sensors.
  • a set of warning lights is used, similar to conventional lights intended to regulate road traffic, as well as various auditory signals.
  • a green light indicates to the master driller the existence of a stable situation
  • an orange light supplemented by a disengageable discontinuous sound signal warns him of a relative instability
  • a red light supplemented by a sound signal continues the alert of high instability.
  • Figures 3a, 3b and 3c are explanatory curves of the present invention.
  • the curves 3a and 3b are spectra obtained for the same sensor, one 3A being a reference spectrum and the other 3B being an instantaneous spectrum corresponding to a real situation, said spectra extending over a frequency range of 0 , 5 to 50 Hz.
  • the curve 3C represents the ratio of the instantaneous spectrum to the real spectrum over the preceding frequency domain. From the different values of this report, the device is able to signal to the user if it is necessary to make, if necessary, a modification to the different drilling parameters.
  • this monitoring system can be supplemented by numerous algorithms allowing it to significantly expand its possibilities. Thus, it can detect a possible disappearance of the vibrations, corresponding respectively to 1/10 ratios between the real spectrum and the reference spectrum for a relative disappearance and 1/100 for a notable disappearance.
  • the disappearance of vibrations is just as worrying as the increase in amplitudes, because it reflects, among other things, the collapse of the well above the tool.
  • system object of the present invention allows the processing of data transmitted from the bottom by an appropriate tool and transmitted to the surface by any measurement method during drilling.
  • the master driller can, if necessary, make the modifications which seem to him necessary in terms of the various drilling parameters, such as the weight on the tool, the speed of rotation and the flow of mud.

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  • 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 (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Earth Drilling (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Filamentary Materials, Packages, And Safety Devices Therefor (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
  • Spray Control Apparatus (AREA)
  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
  • Automatic Control Of Machine Tools (AREA)
EP92906888A 1991-02-25 1992-02-25 Methode de surveillance automatique de l'etat vibratoire d'une garniture de forage Expired - Lifetime EP0526619B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9102201A FR2673237B1 (fr) 1991-02-25 1991-02-25 Methode de surveillance automatique de l'etat vibratoire d'une garniture de forage.
FR9102201 1991-02-25
PCT/FR1992/000169 WO1992014908A1 (fr) 1991-02-25 1992-02-25 Methode de surveillance automatique de l'etat vibratoire d'une garniture de forage

Publications (2)

Publication Number Publication Date
EP0526619A1 EP0526619A1 (fr) 1993-02-10
EP0526619B1 true EP0526619B1 (fr) 1995-08-30

Family

ID=9410040

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92906888A Expired - Lifetime EP0526619B1 (fr) 1991-02-25 1992-02-25 Methode de surveillance automatique de l'etat vibratoire d'une garniture de forage

Country Status (12)

Country Link
US (1) US5273122A (no)
EP (1) EP0526619B1 (no)
JP (1) JP3194744B2 (no)
AT (1) ATE127197T1 (no)
CA (1) CA2080483C (no)
DE (1) DE69204396T2 (no)
DK (1) DK0526619T3 (no)
ES (1) ES2079862T3 (no)
FR (1) FR2673237B1 (no)
NO (1) NO305999B1 (no)
OA (1) OA09619A (no)
WO (1) WO1992014908A1 (no)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5321981A (en) * 1993-02-01 1994-06-21 Baker Hughes Incorporated Methods for analysis of drillstring vibration using torsionally induced frequency modulation
US5448911A (en) * 1993-02-18 1995-09-12 Baker Hughes Incorporated Method and apparatus for detecting impending sticking of a drillstring
NO940209D0 (no) * 1993-02-19 1994-01-20 Baker Hughes Inc Fremgangsmaate og anordning for aa detektere borrspinn
GB9620679D0 (en) * 1996-10-04 1996-11-20 Halliburton Co Method and apparatus for sensing and displaying torsional vibration
GB9824248D0 (en) 1998-11-06 1998-12-30 Camco Int Uk Ltd Methods and apparatus for detecting torsional vibration in a downhole assembly
US7168506B2 (en) * 2004-04-14 2007-01-30 Reedhycalog, L.P. On-bit, analog multiplexer for transmission of multi-channel drilling information
GB0419588D0 (en) * 2004-09-03 2004-10-06 Virtual Well Engineer Ltd "Design and control of oil well formation"
US7357030B2 (en) * 2004-11-11 2008-04-15 Battelle Energy Alliance, Llc Apparatus and methods for determining at least one characteristic of a proximate environment
US20100078216A1 (en) * 2008-09-25 2010-04-01 Baker Hughes Incorporated Downhole vibration monitoring for reaming tools
US20100258352A1 (en) * 2009-04-08 2010-10-14 King Saud University System And Method For Drill String Vibration Control
CA2723340C (en) 2009-12-02 2019-11-12 Technological Resources Pty Limited A system and method for the autonomous drilling of ground holes
US8695692B2 (en) * 2011-07-29 2014-04-15 Baker Hughes Incorporated Downhole condition alert system for a drill operator
NL2010033C2 (en) * 2012-12-20 2014-06-23 Cofely Experts B V A method of and a device for determining operational parameters of a computational model of borehole equipment, an electronic controller and borehole equipment.
US9644440B2 (en) 2013-10-21 2017-05-09 Laguna Oil Tools, Llc Systems and methods for producing forced axial vibration of a drillstring
GB2538434B (en) * 2014-02-13 2018-12-12 Conocophillips Co Vocal drilling alarm notification

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3703096A (en) * 1970-12-28 1972-11-21 Chevron Res Method of determining downhole occurrences in well drilling using rotary torque oscillation measurements
USRE28436E (en) * 1970-12-28 1975-06-03 Method op determining downhole occurences in well drilling using rotary torque oscillation measurements
US4150568A (en) * 1978-03-28 1979-04-24 General Electric Company Apparatus and method for down hole vibration spectrum analysis
US4637479A (en) * 1985-05-31 1987-01-20 Schlumberger Technology Corporation Methods and apparatus for controlled directional drilling of boreholes
US4903245A (en) * 1988-03-11 1990-02-20 Exploration Logging, Inc. Downhole vibration monitoring of a drillstring
GB2217012B (en) * 1988-04-05 1992-03-25 Forex Neptune Sa Method of determining drill bit wear
FR2645205B1 (fr) * 1989-03-31 1991-06-07 Elf Aquitaine 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
GB8916459D0 (en) * 1989-07-19 1989-09-06 Forex Neptune Serv Tech Sa Method of monitoring the drilling of a borehole
JPH07103781B2 (ja) * 1990-04-19 1995-11-08 株式会社小松製作所 小口径管地中掘進機の操作方法

Also Published As

Publication number Publication date
FR2673237B1 (fr) 1999-02-26
US5273122A (en) 1993-12-28
EP0526619A1 (fr) 1993-02-10
CA2080483A1 (fr) 1992-08-26
ATE127197T1 (de) 1995-09-15
WO1992014908A1 (fr) 1992-09-03
DE69204396D1 (de) 1995-10-05
NO924117L (no) 1992-10-23
ES2079862T3 (es) 1996-01-16
JPH05507533A (ja) 1993-10-28
DE69204396T2 (de) 1996-05-02
JP3194744B2 (ja) 2001-08-06
CA2080483C (fr) 2001-11-20
DK0526619T3 (da) 1996-04-01
OA09619A (fr) 1993-04-30
NO924117D0 (no) 1992-10-23
NO305999B1 (no) 1999-08-30
FR2673237A1 (fr) 1992-08-28

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