CA988920A - Underreamer - Google Patents

Underreamer

Info

Publication number
CA988920A
CA988920A CA188,331A CA188331A CA988920A CA 988920 A CA988920 A CA 988920A CA 188331 A CA188331 A CA 188331A CA 988920 A CA988920 A CA 988920A
Authority
CA
Canada
Prior art keywords
underreamer
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
CA188,331A
Other versions
CA188331S (en
Inventor
John H. Furse
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.)
Servco Co
Original Assignee
Servco Co
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 Servco Co filed Critical Servco Co
Priority to CA226,991A priority Critical patent/CA988921A/en
Application granted granted Critical
Publication of CA988920A publication Critical patent/CA988920A/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
    • E21B10/00—Drill bits
    • E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
    • E21B10/32—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools
    • E21B10/34—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools of roller-cutter type

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)
CA188,331A 1973-01-12 1973-12-17 Underreamer Expired CA988920A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA226,991A CA988921A (en) 1973-01-12 1975-05-09 Underreamer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00323125A US3817339A (en) 1973-01-12 1973-01-12 Underreamer

Publications (1)

Publication Number Publication Date
CA988920A true CA988920A (en) 1976-05-11

Family

ID=23257828

Family Applications (1)

Application Number Title Priority Date Filing Date
CA188,331A Expired CA988920A (en) 1973-01-12 1973-12-17 Underreamer

Country Status (2)

Country Link
US (1) US3817339A (en)
CA (1) CA988920A (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3949820A (en) * 1975-02-21 1976-04-13 Smith International, Inc. Underreamer cutter arm
US4031972A (en) * 1976-03-08 1977-06-28 Burg Irving X Expandable and contractible rotary well drilling bit
US4055226A (en) * 1976-03-19 1977-10-25 The Servco Company, A Division Of Smith International, Inc. Underreamer having splined torque transmitting connection between telescoping portions for control of cutter position
US4091883A (en) * 1976-03-19 1978-05-30 The Servco Company, A Division Of Smith International Underreaming tool with overriding extended arm retainer
US4565252A (en) * 1984-03-08 1986-01-21 Lor, Inc. Borehole operating tool with fluid circulation through arms
US4660657A (en) * 1985-10-21 1987-04-28 Smith International, Inc. Underreamer
US4846290A (en) * 1986-03-13 1989-07-11 Smith International, Inc. Underreamer with revolving diamond cutter elements
US5090480A (en) * 1990-06-28 1992-02-25 Slimdril International, Inc. Underreamer with simultaneously expandable cutter blades and method
US5036921A (en) * 1990-06-28 1991-08-06 Slimdril International, Inc. Underreamer with sequentially expandable cutter blades
US5086852A (en) * 1990-08-27 1992-02-11 Wada Ventures Fluid flow control system for operating a down-hole tool
US5255741A (en) * 1991-12-11 1993-10-26 Mobil Oil Corporation Process and apparatus for completing a well in an unconsolidated formation
US5253708A (en) * 1991-12-11 1993-10-19 Mobil Oil Corporation Process and apparatus for performing gravel-packed liner completions in unconsolidated formations
US5361859A (en) * 1993-02-12 1994-11-08 Baker Hughes Incorporated Expandable gage bit for drilling and method of drilling

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1804850A (en) * 1926-10-18 1931-05-12 Grant John Underreamer with an hydraulic trigger
US1834335A (en) * 1928-01-03 1931-12-01 Grant John Expansible underreamer trip
US1881035A (en) * 1928-12-05 1932-10-04 William H Campbell Well reamer
US2758820A (en) * 1953-11-23 1956-08-14 Rotary Oil Tool Company Expansible rotary drill bits
US2868510A (en) * 1955-12-30 1959-01-13 Charles A Dean Under-reamers
US2997119A (en) * 1958-01-06 1961-08-22 Pan American Petroleum Corp Drill bit assembly
US3712854A (en) * 1971-01-18 1973-01-23 Servco Co Expansible drilling tool

Also Published As

Publication number Publication date
US3817339A (en) 1974-06-18

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