GB1439519A - Method and apapratus for rotary drilling - Google Patents

Method and apapratus for rotary drilling

Info

Publication number
GB1439519A
GB1439519A GB5105373A GB5105373A GB1439519A GB 1439519 A GB1439519 A GB 1439519A GB 5105373 A GB5105373 A GB 5105373A GB 5105373 A GB5105373 A GB 5105373A GB 1439519 A GB1439519 A GB 1439519A
Authority
GB
United Kingdom
Prior art keywords
reaction
bit
torque
measuring
bit diameter
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
GB5105373A
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.)
Texaco Development Corp
Original Assignee
Texaco Development Corp
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 Texaco Development Corp filed Critical Texaco Development Corp
Priority to GB5105373A priority Critical patent/GB1439519A/en
Publication of GB1439519A publication Critical patent/GB1439519A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/58—Investigating machinability by cutting tools; Investigating the cutting ability of tools
    • 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
    • E21B12/00—Accessories for drilling tools
    • E21B12/02—Wear indicators
    • 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

Abstract

1439519 Measuring boring torque/reaction ratio TEXACO DEVELOPMENT CORP 2 Nov 1973 51053/73 Heading E1F [Also in Division G1] Apparatus for determining incipient failure of a bit or its roller-cone bearings comprises means 33 for measuring the surface torque applied to said bit while drilling and means 36 for measuring the vertical reaction on said bit during drilling and a means for dividing surface torque by the reaction to produce a ratio signal. The method is also claimed. By cable 25, derrick 23 supports hook 24, supporting drill string 28 rotated by engine 32 via table 29. The vertical reaction is obtained by subtracting the reading of means 36 from the total weight on string 28. The electronic divider circuit has transconductor unit 40 with input terminals 41, 42, 43 for the torque, reaction and bit diameter signals respectively. The constant bit diameter signal is produced by a source of emf and resistor 46. The output from terminal 50 is connected to a recorder or indicating instrument or alarm and gives signals for representing the factor torque reaction bit diameter.
GB5105373A 1973-11-02 1973-11-02 Method and apapratus for rotary drilling Expired GB1439519A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5105373A GB1439519A (en) 1973-11-02 1973-11-02 Method and apapratus for rotary drilling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5105373A GB1439519A (en) 1973-11-02 1973-11-02 Method and apapratus for rotary drilling

Publications (1)

Publication Number Publication Date
GB1439519A true GB1439519A (en) 1976-06-16

Family

ID=10458464

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5105373A Expired GB1439519A (en) 1973-11-02 1973-11-02 Method and apapratus for rotary drilling

Country Status (1)

Country Link
GB (1) GB1439519A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0168996A1 (en) * 1984-06-30 1986-01-22 Anadrill International SA Drilling monitor
EP0336491A1 (en) * 1988-04-04 1989-10-11 Anadrill International SA Method for detecting drilling events from measurement while drilling sensors
EP0351902A1 (en) * 1988-07-20 1990-01-24 Anadrill International SA Method of determining the porosity of an underground formation being drilled
US5448911A (en) * 1993-02-18 1995-09-12 Baker Hughes Incorporated Method and apparatus for detecting impending sticking of a drillstring

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0168996A1 (en) * 1984-06-30 1986-01-22 Anadrill International SA Drilling monitor
US4695957A (en) * 1984-06-30 1987-09-22 Prad Research & Development N.V. Drilling monitor with downhole torque and axial load transducers
EP0336491A1 (en) * 1988-04-04 1989-10-11 Anadrill International SA Method for detecting drilling events from measurement while drilling sensors
EP0351902A1 (en) * 1988-07-20 1990-01-24 Anadrill International SA Method of determining the porosity of an underground formation being drilled
US5448911A (en) * 1993-02-18 1995-09-12 Baker Hughes Incorporated Method and apparatus for detecting impending sticking of a drillstring

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee