AU484673B2 - Core bit - Google Patents

Core bit

Info

Publication number
AU484673B2
AU484673B2 AU82680/75A AU8268075A AU484673B2 AU 484673 B2 AU484673 B2 AU 484673B2 AU 82680/75 A AU82680/75 A AU 82680/75A AU 8268075 A AU8268075 A AU 8268075A AU 484673 B2 AU484673 B2 AU 484673B2
Authority
AU
Australia
Prior art keywords
core bit
bit
core
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
AU82680/75A
Other versions
AU8268075A (en
Inventor
And Theodore James Roscoe Alfred Ronald Curington Jr
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.)
Bakerdrill Inc
Original Assignee
Bakerdrill Inc
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 Bakerdrill Inc filed Critical Bakerdrill Inc
Priority to AU82680/75A priority Critical patent/AU484673B2/en
Application granted granted Critical
Publication of AU8268075A publication Critical patent/AU8268075A/en
Publication of AU484673B2 publication Critical patent/AU484673B2/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
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/12—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor using drilling pipes with plural fluid passages, e.g. closed circulation 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
    • E21B10/00—Drill bits
    • E21B10/02—Core bits
    • E21B10/04—Core bits with core destroying means
    • 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
    • E21B4/00—Drives for drilling, used in the borehole
    • E21B4/06—Down-hole impacting means, e.g. hammers
    • E21B4/14—Fluid operated hammers

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
AU82680/75A 1975-07-02 1975-07-02 Core bit Expired AU484673B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU82680/75A AU484673B2 (en) 1975-07-02 1975-07-02 Core bit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU82680/75A AU484673B2 (en) 1975-07-02 1975-07-02 Core bit

Related Child Applications (1)

Application Number Title Priority Date Filing Date
AU70572/74A Division AU482481B2 (en) 1973-08-29 1974-06-27 Continuous coring system and apparatus

Publications (2)

Publication Number Publication Date
AU8268075A AU8268075A (en) 1975-09-18
AU484673B2 true AU484673B2 (en) 1975-09-18

Family

ID=3760966

Family Applications (1)

Application Number Title Priority Date Filing Date
AU82680/75A Expired AU484673B2 (en) 1975-07-02 1975-07-02 Core bit

Country Status (1)

Country Link
AU (1) AU484673B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111721574A (en) * 2020-05-28 2020-09-29 北京城建中南土木工程集团有限公司 Sampling device for rapidly detecting sediment thickness
CN111852363A (en) * 2020-08-27 2020-10-30 孟庆华 Flow self-adjusting drilling process efficiency improving device and positive circulation drilling equipment

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4771835A (en) * 1985-09-02 1988-09-20 Wallis Drilling Pty. Ltd. Downhole hammer

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111721574A (en) * 2020-05-28 2020-09-29 北京城建中南土木工程集团有限公司 Sampling device for rapidly detecting sediment thickness
CN111721574B (en) * 2020-05-28 2023-04-28 北京城建中南土木工程集团有限公司 Sampling device for rapidly detecting thickness of sediment
CN111852363A (en) * 2020-08-27 2020-10-30 孟庆华 Flow self-adjusting drilling process efficiency improving device and positive circulation drilling equipment
CN111852363B (en) * 2020-08-27 2022-03-01 孟庆华 Flow self-adjusting drilling process efficiency improving device and positive circulation drilling equipment

Also Published As

Publication number Publication date
AU8268075A (en) 1975-09-18

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