GB243625A - Improvements in casing slips for well drilling apparatus - Google Patents

Improvements in casing slips for well drilling apparatus

Info

Publication number
GB243625A
GB243625A GB14420/25A GB1442025A GB243625A GB 243625 A GB243625 A GB 243625A GB 14420/25 A GB14420/25 A GB 14420/25A GB 1442025 A GB1442025 A GB 1442025A GB 243625 A GB243625 A GB 243625A
Authority
GB
United Kingdom
Prior art keywords
casing slips
well drilling
drilling apparatus
gripping face
unit
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
GB14420/25A
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.)
OIL WELL ENG CO Ltd
Original Assignee
OIL WELL ENG CO Ltd
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 OIL WELL ENG CO Ltd filed Critical OIL WELL ENG CO Ltd
Priority to GB14420/25A priority Critical patent/GB243625A/en
Publication of GB243625A publication Critical patent/GB243625A/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
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/10—Slips; Spiders ; Catching devices

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)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Abstract

243,625. Cuthill, J., and Oil Well Engineering Co., Ltd. June 2, 1925. Bore-hole apparatus.-Casing slips for welldrilling apparatus comprise two or more separate segmental tapered units 11 each provided with a renewable gripping face a resting on the ledge 12 and held between vertical ribs 14 by a detachable plate 15 overlapping the gripping face, which has horizontal, spiral, or vertical serrations. Each slip unit has a pivoted handle 17 and a recess 20 to receive a lever to free the unit when locked.
GB14420/25A 1925-06-02 1925-06-02 Improvements in casing slips for well drilling apparatus Expired GB243625A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB14420/25A GB243625A (en) 1925-06-02 1925-06-02 Improvements in casing slips for well drilling apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB14420/25A GB243625A (en) 1925-06-02 1925-06-02 Improvements in casing slips for well drilling apparatus

Publications (1)

Publication Number Publication Date
GB243625A true GB243625A (en) 1925-12-03

Family

ID=10040892

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14420/25A Expired GB243625A (en) 1925-06-02 1925-06-02 Improvements in casing slips for well drilling apparatus

Country Status (1)

Country Link
GB (1) GB243625A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3365762A (en) * 1965-08-02 1968-01-30 Cavins Co Well pipe gripping structure
CN102518402A (en) * 2012-01-12 2012-06-27 重庆大学 General chuck for coal drilling machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3365762A (en) * 1965-08-02 1968-01-30 Cavins Co Well pipe gripping structure
CN102518402A (en) * 2012-01-12 2012-06-27 重庆大学 General chuck for coal drilling machine
CN102518402B (en) * 2012-01-12 2014-07-09 重庆大学 General chuck for coal drilling machine

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