DE317300C - - Google Patents

Info

Publication number
DE317300C
DE317300C DENDAT317300D DE317300DA DE317300C DE 317300 C DE317300 C DE 317300C DE NDAT317300 D DENDAT317300 D DE NDAT317300D DE 317300D A DE317300D A DE 317300DA DE 317300 C DE317300 C DE 317300C
Authority
DE
Germany
Prior art keywords
drill head
drill
tail end
head
pin
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.)
Active
Application number
DENDAT317300D
Other languages
German (de)
English (en)
Publication of DE317300C publication Critical patent/DE317300C/de
Active 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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/22—Rods or pipes with helical structure
    • 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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02—Couplings; joints
    • E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
    • E21B17/046—Couplings; joints between rod or the like and bit or between rod and rod or the like with ribs, pins, or jaws, and complementary grooves or the like, e.g. bayonet catches

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)
  • Earth Drilling (AREA)
DENDAT317300D Active DE317300C (enExample)

Publications (1)

Publication Number Publication Date
DE317300C true DE317300C (enExample)

Family

ID=569961

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT317300D Active DE317300C (enExample)

Country Status (1)

Country Link
DE (1) DE317300C (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0794315A1 (de) * 1996-03-08 1997-09-10 Tracto-Technik Paul Schmidt Spezialmaschinen Vorrichtung zum Bohren im Erdreich

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0794315A1 (de) * 1996-03-08 1997-09-10 Tracto-Technik Paul Schmidt Spezialmaschinen Vorrichtung zum Bohren im Erdreich
JPH1018772A (ja) * 1996-03-08 1998-01-20 Tracto Technik Paul Schmidt Mas Fab Gmbh 土壌ボーリング装置
US5980157A (en) * 1996-03-08 1999-11-09 Tracto-Technik Paul Schmidt Spezialmaschinen Ground-boring machine

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