ES364970A1 - Improvements in or relating to drilling methods and apparatus - Google Patents

Improvements in or relating to drilling methods and apparatus

Info

Publication number
ES364970A1
ES364970A1 ES364970A ES364970A ES364970A1 ES 364970 A1 ES364970 A1 ES 364970A1 ES 364970 A ES364970 A ES 364970A ES 364970 A ES364970 A ES 364970A ES 364970 A1 ES364970 A1 ES 364970A1
Authority
ES
Spain
Prior art keywords
amplitude
signal
drilling
drill
phase
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
Application number
ES364970A
Other languages
Spanish (es)
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.)
Societe Nationale des Petroles dAquitaine SA
Original Assignee
Societe Nationale des Petroles dAquitaine 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.)
Filing date
Publication date
Application filed by Societe Nationale des Petroles dAquitaine SA filed Critical Societe Nationale des Petroles dAquitaine SA
Publication of ES364970A1 publication Critical patent/ES364970A1/en
Expired legal-status Critical Current

Links

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
    • E21B44/02—Automatic control of the tool feed
    • 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
    • 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
    • E21B49/003—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 analysing drilling variables or conditions

Landscapes

  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Earth Drilling (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)

Abstract

The mechanical properties of rock are measured during a drilling operation by measuring the vibrations of the upper part of the drilling assembly. The vibrations are sensed by a strain gauge bridge circuit responsive to stresses at the top of the drilling assembly and by pick-ups responsive to the longitudinal or torsional acceleration of the top of the drilling assembly. Band pass filters 7, 8 pass components of the stress signal 5 and acceleration signal 6 at the frequency equal to the rotational speed of the drill multiplied by the number of operational elements on the tool. The acceleration signal passes through amplifier 11 and integrator 11a and is added to the stress signal in adding unit 12. The composite signal is amplified at 14, phase-shifted at 16, and supplied to one input each of a differential amplifier 18 and a phase comparator 28. Generator 4 generates an alternating voltage of amplitude proportional to the frequency, which is fed through adjustable gain amplifier 23, adjustable phaseshifter 30 and delay line 32 to be compared in amplitude and phase at 18, 28 respectively with the composite signal. The outputs of differential amplifier 18, integrated at 20, and of phase comparator 28 are used to control the settings of 23, 30 which settings at balance are evaluated at 37 and recorded at 38 as a function of drill depth. The drilling may be controlled in dependance on the rock characteristics, the rotational speed of the drill being varied to find the speed which gives the maximum vibration amplitude and the speed being maintained at the value to give this maximum amplitude.
ES364970A 1968-03-22 1969-03-20 Improvements in or relating to drilling methods and apparatus Expired ES364970A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR145020 1968-03-22

Publications (1)

Publication Number Publication Date
ES364970A1 true ES364970A1 (en) 1971-02-16

Family

ID=8647906

Family Applications (1)

Application Number Title Priority Date Filing Date
ES364970A Expired ES364970A1 (en) 1968-03-22 1969-03-20 Improvements in or relating to drilling methods and apparatus

Country Status (14)

Country Link
JP (1) JPS4942562B1 (en)
AT (1) AT316162B (en)
BE (1) BE730268A (en)
CH (1) CH510814A (en)
DE (1) DE1911680C3 (en)
ES (1) ES364970A1 (en)
FR (1) FR1587350A (en)
GB (1) GB1253717A (en)
IL (1) IL31835A (en)
LU (1) LU58207A1 (en)
NL (1) NL166753C (en)
OA (1) OA03313A (en)
RO (1) RO63741A (en)
SU (1) SU528041A3 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2645205B1 (en) * 1989-03-31 1991-06-07 Elf Aquitaine DEVICE FOR AUDITIVE AND / OR VISUAL REPRESENTATION OF MECHANICAL PHENOMENAS IN A WELL AND USE OF THE DEVICE IN A METHOD OF CONDUCTING A WELL
US5448911A (en) * 1993-02-18 1995-09-12 Baker Hughes Incorporated Method and apparatus for detecting impending sticking of a drillstring
FR2790511B1 (en) * 1999-03-04 2001-06-08 Geophysique Cie Gle DRILLING DEVICE HAVING MEANS FOR MEASURING AT LEAST ONE PARAMETER OF THE GROUND
SG172693A1 (en) * 2006-06-09 2011-07-28 Univ Aberdeen Resonance enhanced drilling: method and apparatus
RU2369478C1 (en) * 2008-05-14 2009-10-10 Открытое акционерное общество Пермский завод "Машиностроитель" Method of drilling polymer composite materials
CN107420088B (en) * 2017-06-12 2023-12-12 中国石油集团测井有限公司吐哈事业部 Logging instrument control device and logging parameter acquisition system
SE543372C2 (en) * 2019-03-29 2020-12-22 Epiroc Rock Drills Ab Drilling machine and method for controlling a drilling process of a drilling machine
CN116752968B (en) * 2023-06-07 2024-05-17 陕煤集团神木红柳林矿业有限公司 While-drilling device for measuring basic elastic mechanical parameters of coal rock and use method thereof
CN118577854B (en) * 2024-08-06 2024-10-18 浙江良业集团有限公司 Control method of positioning device of electric hand drill, positioning device and electric hand drill

Also Published As

Publication number Publication date
GB1253717A (en) 1971-11-17
IL31835A0 (en) 1969-05-28
JPS4942562B1 (en) 1974-11-15
NL6904471A (en) 1969-09-24
NL166753C (en) 1981-09-15
DE1911680A1 (en) 1970-01-15
SU528041A3 (en) 1976-09-05
FR1587350A (en) 1970-03-20
AT316162B (en) 1974-06-25
OA03313A (en) 1970-12-15
BE730268A (en) 1969-09-22
LU58207A1 (en) 1970-09-16
RO63741A (en) 1979-01-15
CH510814A (en) 1971-07-31
DE1911680B2 (en) 1978-11-09
IL31835A (en) 1971-07-28
DE1911680C3 (en) 1979-07-19
NL166753B (en) 1981-04-15

Similar Documents

Publication Publication Date Title
US3599543A (en) Vibratory machines
US3520375A (en) Method and apparatus for measuring mechanical characteristics of rocks while they are being drilled
GB1285985A (en) Method and apparatus for the measurement of the characteristics of rocks during drilling
ES364970A1 (en) Improvements in or relating to drilling methods and apparatus
US4184144A (en) Measurement and control of the output force of a seismic vibrator
SE7901866L (en) APPARATUS FOR PERFORMING REOLOGICAL SATURATIONS
GB1302487A (en)
US2400571A (en) Electrical measurement
GB1294775A (en) Balancing apparatus for balancing out-of-balance bodies
GB1102152A (en) Improvements in or relating to the measurement of force
US3280938A (en) Dynamic detection of unbalanced loading of vibrating coupling plates
GB1129477A (en) Improvements in and relating to rotary balancing apparatus
GB994536A (en) Improvements in or relating to apparatus for the electronic measurement of mechanical power
US3675485A (en) Method and apparatus for measuring variations in a quantity with respect to a known reference value
Berry Apparatus for the measurement of the internal friction of metals in transverse vibration
SU457900A1 (en) String generator
JPS6342215B2 (en)
SU842592A1 (en) Device for measuring resistance increments
US2779190A (en) Automatic load controller
SU515045A1 (en) Electrokinematic bench for determining hydrodynamic characteristics
GB895767A (en) Method and apparatus for plane separation calibration in balancing machines
SU369444A1 (en) VIBROSTAND CONTROL DEVICE
SU930002A1 (en) Strain gauge device
SU727159A3 (en) Device for measuring rak characteristics during well-drilling
SU542112A1 (en) Balancing machine