DE221801C - - Google Patents

Info

Publication number
DE221801C
DE221801C DENDAT221801D DE221801DA DE221801C DE 221801 C DE221801 C DE 221801C DE NDAT221801 D DENDAT221801 D DE NDAT221801D DE 221801D A DE221801D A DE 221801DA DE 221801 C DE221801 C DE 221801C
Authority
DE
Germany
Prior art keywords
linkage
cork
relieving
rods
parts made
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
DENDAT221801D
Other languages
German (de)
Publication of DE221801C publication Critical patent/DE221801C/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
    • 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
    • E21B17/01—Risers
    • E21B17/012—Risers with buoyancy elements

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Soil Working Implements (AREA)
  • Fishing Rods (AREA)

Description

Hierzu 1 Blatt Zeichnungen.1 sheet of drawings.

Claims (1)

Patent-Anspruch:Patent claim: Vorrichtung zur Entlastung des Gestänges für Schachtbohrer, dadurch gekennzeichnet, daß Mantelteile aus Kork oder einem ahnliehen Schwimmstoff in dem zunehmenden Gestängegewicht entsprechend regelbaren Abständen auf das Gestänge aufgebracht sind. . . .Device for relieving the rods for shaft drills, characterized in that that coat parts made of cork or a similar floating material in the increasing Linkage weight are applied to the linkage according to adjustable distances. . . .
DENDAT221801D Active DE221801C (en)

Publications (1)

Publication Number Publication Date
DE221801C true DE221801C (en)

Family

ID=482747

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT221801D Active DE221801C (en)

Country Status (1)

Country Link
DE (1) DE221801C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008001087A3 (en) * 2006-06-30 2008-05-02 Technip France Sa Method and apparatus for mounting distributed buoyancy modules on a rigid pipeline

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008001087A3 (en) * 2006-06-30 2008-05-02 Technip France Sa Method and apparatus for mounting distributed buoyancy modules on a rigid pipeline
GB2439829B (en) * 2006-06-30 2011-03-09 Technip France Apparatus for mounting distribute buoyancy modules on a rigid pipeline
US8573888B2 (en) 2006-06-30 2013-11-05 Technip France Sa Method and apparatus for mounting distributed buoyancy modules on a rigid pipeline

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