GB1253717A - Improvements in or relating to drilling methods and apparatus - Google Patents

Improvements in or relating to drilling methods and apparatus

Info

Publication number
GB1253717A
GB1253717A GB04752/69A GB1475269A GB1253717A GB 1253717 A GB1253717 A GB 1253717A GB 04752/69 A GB04752/69 A GB 04752/69A GB 1475269 A GB1475269 A GB 1475269A GB 1253717 A GB1253717 A GB 1253717A
Authority
GB
United Kingdom
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
GB04752/69A
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 GB1253717A publication Critical patent/GB1253717A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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 DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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 DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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

Abstract

1,253,717. Borehole logging. SOC. NATIONALE DES PETROLES D'AQUITAINE. 20 March, 1969 [22 March, 1968], No. 14752/69. Heading H4D. [Also in Division G1] 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.
GB04752/69A 1968-03-22 1969-03-20 Improvements in or relating to drilling methods and apparatus Expired GB1253717A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
GB1253717A true GB1253717A (en) 1971-11-17

Family

ID=8647906

Family Applications (1)

Application Number Title Priority Date Filing Date
GB04752/69A Expired GB1253717A (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)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5448911A (en) * 1993-02-18 1995-09-12 Baker Hughes Incorporated Method and apparatus for detecting impending sticking of a drillstring
CN107420088A (en) * 2017-06-12 2017-12-01 中国石油集团测井有限公司吐哈事业部 Logger control device and log parameter acquisition system
WO2020204782A1 (en) * 2019-03-29 2020-10-08 Epiroc Rock Drills Aktiebolag Method of controlling a drilling process of a percussion drilling machine

Families Citing this family (3)

* 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
FR2790511B1 (en) * 1999-03-04 2001-06-08 Geophysique Cie Gle DRILLING DEVICE HAVING MEANS FOR MEASURING AT LEAST ONE PARAMETER OF THE GROUND
CN102926662B (en) * 2006-06-09 2015-04-15 阿伯丁大学大学评议会 Resonance enhanced drilling method and apparatus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5448911A (en) * 1993-02-18 1995-09-12 Baker Hughes Incorporated Method and apparatus for detecting impending sticking of a drillstring
CN107420088A (en) * 2017-06-12 2017-12-01 中国石油集团测井有限公司吐哈事业部 Logger control device and log parameter acquisition system
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
WO2020204782A1 (en) * 2019-03-29 2020-10-08 Epiroc Rock Drills Aktiebolag Method of controlling a drilling process of a percussion drilling machine

Also Published As

Publication number Publication date
OA03313A (en) 1970-12-15
LU58207A1 (en) 1970-09-16
CH510814A (en) 1971-07-31
RO63741A (en) 1979-01-15
JPS4942562B1 (en) 1974-11-15
NL166753B (en) 1981-04-15
DE1911680A1 (en) 1970-01-15
DE1911680B2 (en) 1978-11-09
SU528041A3 (en) 1976-09-05
ES364970A1 (en) 1971-02-16
AT316162B (en) 1974-06-25
NL166753C (en) 1981-09-15
IL31835A0 (en) 1969-05-28
DE1911680C3 (en) 1979-07-19
BE730268A (en) 1969-09-22
NL6904471A (en) 1969-09-24
IL31835A (en) 1971-07-28
FR1587350A (en) 1970-03-20

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