FR972790A - Improvements to drilling rigs - Google Patents

Improvements to drilling rigs

Info

Publication number
FR972790A
FR972790A FR972790DA FR972790A FR 972790 A FR972790 A FR 972790A FR 972790D A FR972790D A FR 972790DA FR 972790 A FR972790 A FR 972790A
Authority
FR
France
Prior art keywords
drilling rigs
rigs
drilling
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
Other languages
French (fr)
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.)
Societe Francaise de Construction de Bennes Automatiques BENOTO SA
Original Assignee
Societe Francaise de Construction de Bennes Automatiques BENOTO SA
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 Societe Francaise de Construction de Bennes Automatiques BENOTO SA filed Critical Societe Francaise de Construction de Bennes Automatiques BENOTO SA
Application granted granted Critical
Publication of FR972790A publication Critical patent/FR972790A/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
    • E21B27/00—Containers for collecting or depositing substances in boreholes or wells, e.g. bailers, baskets or buckets for collecting mud or sand; Drill bits with means for collecting substances, e.g. valve drill bits

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
FR972790D 1941-04-24 1941-04-24 Improvements to drilling rigs Expired FR972790A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR972790T 1941-04-24

Publications (1)

Publication Number Publication Date
FR972790A true FR972790A (en) 1951-02-02

Family

ID=9516251

Family Applications (1)

Application Number Title Priority Date Filing Date
FR972790D Expired FR972790A (en) 1941-04-24 1941-04-24 Improvements to drilling rigs

Country Status (1)

Country Link
FR (1) FR972790A (en)

Similar Documents

Publication Publication Date Title
FR934457A (en) Improvements to amplifiers
FR875468A (en) Improvements made to seed drills
FR973672A (en) Drill bit improvements
FR972790A (en) Improvements to drilling rigs
FR869859A (en) Improvements to rotary hydraulic compressors
FR879940A (en) Improvements to drills
FR869003A (en) Improvements to gasifiers
FR883842A (en) Improvements to hydraulic jacks
FR875034A (en) Improvements to pneumatic drills
FR875714A (en) Improvements to fouillots
FR878093A (en) Improvements to hydro-ejectors
FR974064A (en) Improvements to turret-revolvers
FR884955A (en) Improvements to audiometers
FR880985A (en) Improvements to masonry
FR877276A (en) Improvements to gasifiers
FR52300E (en) Improvements to gasifiers
FR55375E (en) Improvements to gasifiers
FR55415E (en) Improvements to gasifiers
FR869070A (en) Improvements to gasifiers
FR974557A (en) Improvements to gasifiers
FR873244A (en) Improvements to gasifiers
FR874817A (en) Improvements to gasifiers
FR875574A (en) Improvements to gasifiers
FR876979A (en) Improvements to gasifiers
FR885103A (en) Improvements to gasifiers