GB176048A - Improvements in or relating to well-boring drills - Google Patents

Improvements in or relating to well-boring drills

Info

Publication number
GB176048A
GB176048A GB30155/20A GB3015520A GB176048A GB 176048 A GB176048 A GB 176048A GB 30155/20 A GB30155/20 A GB 30155/20A GB 3015520 A GB3015520 A GB 3015520A GB 176048 A GB176048 A GB 176048A
Authority
GB
United Kingdom
Prior art keywords
cutters
lubricant
water
spindles
sleeve
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
GB30155/20A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB30155/20A priority Critical patent/GB176048A/en
Publication of GB176048A publication Critical patent/GB176048A/en
Expired legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00Drill bits
    • E21B10/08Roller bits
    • E21B10/22Roller bits characterised by bearing, lubrication or sealing details
    • E21B10/24Roller bits characterised by bearing, lubrication or sealing details characterised by lubricating details
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00Drill bits
    • E21B10/26Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
    • E21B10/28Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with non-expansible roller cutters
    • E21B10/30Longitudinal axis roller reamers, e.g. reamer stabilisers
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00Drill bits
    • E21B10/08Roller bits
    • E21B10/22Roller bits characterised by bearing, lubrication or sealing details
    • E21B10/24Roller bits characterised by bearing, lubrication or sealing details characterised by lubricating details
    • E21B10/246Roller bits characterised by bearing, lubrication or sealing details characterised by lubricating details with pumping means for feeding lubricant

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)
  • Auxiliary Devices For Machine Tools (AREA)
  • Drilling Tools (AREA)
  • Drilling And Boring (AREA)

Abstract

176,048. Reed, C. E. Oct. 25, 1920. Bore-hole apparatus.-In a wellboring drill, a sleeve 42, Fig. 1, is arranged coaxially within the drill stem 31 and forms the passage for flushing-water while the surrounding annular chamber 47 forms a lubricant-chamber, the flushing-water acting through a piston 49 to force the lubricant to the bearings of rolling cutters. The passage of lubricant may be controlled by a, device comprising an apertured member 60, Fig. 5, fixed to the sleeve 42 and a movable apertured disc 62 adapted to be fixed in adjusted position by screws. The apparatus shown comprises a drill head 1 threaded to a reamer block 17 which is threaded to the sleeve 42 and is connected bv a sleeve 33 to the drill stem 31. The reamer block has spaced pockets 22 in which rolling sectional reaming cutters 18 are carried by hollow spindles 24 to which lubricant is supplied through passages 40 for delivery through ports 37 to the cutters 18 ; flushing-water is supplied to the pockets through ports 23. The drill head comprises a central pocket e enclosed by walls n, o and containing rolling cutters 5 mounted on a hollow cross spindle 6. while lateral pockets enclosed by walls c, d contain rolling side cutters 2, 3 mounted on hollow spindles 4 which are inserted from the central pocket e and are preferably held by a brace j carried by the spindle 6. A. lubricant-chamber 8 in the drill head supplies lubricant through the hollow spindles 4, 6 to the cutters 2. 3, 5 and is itself supplied with lubricant either directlv from the annular reservoir 47 or indirectly through the hollow spindles 24 of the reaming cutters 18. Water is supplied to the drill head through ports 10, its passage through the lateral pockets thereof being limited by washers b carried by the spindles 4; external return passages In are provided for the water. All the cutters spindles have eccentric heads to prevent rotation.
GB30155/20A 1920-10-25 1920-10-25 Improvements in or relating to well-boring drills Expired GB176048A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB30155/20A GB176048A (en) 1920-10-25 1920-10-25 Improvements in or relating to well-boring drills

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB30155/20A GB176048A (en) 1920-10-25 1920-10-25 Improvements in or relating to well-boring drills

Publications (1)

Publication Number Publication Date
GB176048A true GB176048A (en) 1922-02-27

Family

ID=10303178

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30155/20A Expired GB176048A (en) 1920-10-25 1920-10-25 Improvements in or relating to well-boring drills

Country Status (1)

Country Link
GB (1) GB176048A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995013452A1 (en) * 1993-11-10 1995-05-18 Gearhart United Pty. Ltd. Improved rotary roller reamer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995013452A1 (en) * 1993-11-10 1995-05-18 Gearhart United Pty. Ltd. Improved rotary roller reamer

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