IT1117791B - Perfezionamento nelle punte di trivellazione e procedimento per la loro fabbricazione - Google Patents

Perfezionamento nelle punte di trivellazione e procedimento per la loro fabbricazione

Info

Publication number
IT1117791B
IT1117791B IT49664/79A IT4966479A IT1117791B IT 1117791 B IT1117791 B IT 1117791B IT 49664/79 A IT49664/79 A IT 49664/79A IT 4966479 A IT4966479 A IT 4966479A IT 1117791 B IT1117791 B IT 1117791B
Authority
IT
Italy
Prior art keywords
improvement
procedure
manufacture
drilling points
drilling
Prior art date
Application number
IT49664/79A
Other languages
English (en)
Italian (it)
Other versions
IT7949664A0 (it
Original Assignee
Dresser Ind
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 Dresser Ind filed Critical Dresser Ind
Publication of IT7949664A0 publication Critical patent/IT7949664A0/it
Application granted granted Critical
Publication of IT1117791B publication Critical patent/IT1117791B/it

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
    • E21B10/00—Drill bits
    • E21B10/08—Roller bits
    • E21B10/22—Roller bits characterised by bearing, lubrication or sealing details
    • E21B10/25—Roller bits characterised by bearing, lubrication or sealing details characterised by sealing details
    • 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
    • E21B10/08—Roller bits
    • E21B10/22—Roller bits characterised by bearing, lubrication or sealing details

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Manufacturing Of Electric Cables (AREA)
  • Saccharide Compounds (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
IT49664/79A 1978-07-24 1979-07-05 Perfezionamento nelle punte di trivellazione e procedimento per la loro fabbricazione IT1117791B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US92769678A 1978-07-24 1978-07-24

Publications (2)

Publication Number Publication Date
IT7949664A0 IT7949664A0 (it) 1979-07-05
IT1117791B true IT1117791B (it) 1986-02-24

Family

ID=25455101

Family Applications (1)

Application Number Title Priority Date Filing Date
IT49664/79A IT1117791B (it) 1978-07-24 1979-07-05 Perfezionamento nelle punte di trivellazione e procedimento per la loro fabbricazione

Country Status (10)

Country Link
JP (1) JPS5519400A (fr)
CA (1) CA1095505A (fr)
DE (1) DE2929568A1 (fr)
FR (1) FR2441048A1 (fr)
GB (1) GB2026576B (fr)
IT (1) IT1117791B (fr)
MX (1) MX150790A (fr)
NL (1) NL7904731A (fr)
NO (1) NO791605L (fr)
PL (1) PL120433B1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE8002813L (sv) * 1980-04-15 1981-10-16 Sandvik Ab Lageranordning vid roterande borrkronor
US7086487B2 (en) 2002-07-01 2006-08-08 Baker Hughes Incorporated Anti-mud packing seal gland
CN109026009B (zh) * 2018-10-17 2023-11-21 中南大学 一种海底矿产资源富钴结壳的采掘头

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE673486A (fr) *
US3384426A (en) * 1965-05-14 1968-05-21 Reed Roller Bit Co Contoured race for roller bearings
FR1459030A (fr) * 1965-08-17 1966-04-29 Hughes Tool Co Système de palier, notamment pour trépans
US3746405A (en) * 1971-11-18 1973-07-17 Globe Oil Tools Co Well drilling bit lubrication and seal
US3890018A (en) * 1974-07-19 1975-06-17 Dresser Ind Rotary rock bit with wiper pad lubrication system
US4061376A (en) * 1976-06-14 1977-12-06 Smith International Inc. Rock bit bearing structure

Also Published As

Publication number Publication date
GB2026576A (en) 1980-02-06
NL7904731A (nl) 1980-01-28
DE2929568A1 (de) 1980-02-07
PL217220A1 (fr) 1980-04-08
PL120433B1 (en) 1982-02-27
FR2441048A1 (fr) 1980-06-06
GB2026576B (en) 1982-12-15
IT7949664A0 (it) 1979-07-05
JPS5519400A (en) 1980-02-12
CA1095505A (fr) 1981-02-10
NO791605L (no) 1980-01-25
MX150790A (es) 1984-07-19

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