GB2323875B - Underreamer blade - Google Patents

Underreamer blade

Info

Publication number
GB2323875B
GB2323875B GB9813101A GB9813101A GB2323875B GB 2323875 B GB2323875 B GB 2323875B GB 9813101 A GB9813101 A GB 9813101A GB 9813101 A GB9813101 A GB 9813101A GB 2323875 B GB2323875 B GB 2323875B
Authority
GB
United Kingdom
Prior art keywords
underreamer
blade
underreamer blade
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 - Lifetime
Application number
GB9813101A
Other versions
GB2323875A (en
GB9813101D0 (en
Inventor
Bruce Hermann Forsyth Mcgarian
Richard Alvin Armell
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.)
RED BARON
Smith International Inc
Original Assignee
RED BARON
Smith International Inc
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
Priority claimed from GB9422022A external-priority patent/GB9422022D0/en
Application filed by RED BARON, Smith International Inc filed Critical RED BARON
Priority to GB9813101A priority Critical patent/GB2323875B/en
Priority claimed from GB9707616A external-priority patent/GB2308608B/en
Publication of GB9813101D0 publication Critical patent/GB9813101D0/en
Publication of GB2323875A publication Critical patent/GB2323875A/en
Application granted granted Critical
Publication of GB2323875B publication Critical patent/GB2323875B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/56—Button-type inserts
    • E21B10/567—Button-type inserts with preformed cutting elements mounted on a distinct support, e.g. polycrystalline inserts
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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
    • E21B10/322—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 cutter shifted by fluid pressure
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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
    • E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00—Survey of boreholes or wells
    • E21B47/09—Locating or determining the position of objects in boreholes or wells, e.g. the position of an extending arm; Identifying the free or blocked portions of pipes
    • E21B47/095—Locating or determining the position of objects in boreholes or wells, e.g. the position of an extending arm; Identifying the free or blocked portions of pipes by detecting an acoustic anomalies, e.g. using mud-pressure pulses
GB9813101A 1994-10-31 1995-10-31 Underreamer blade Expired - Lifetime GB2323875B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9813101A GB2323875B (en) 1994-10-31 1995-10-31 Underreamer blade

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB9422022A GB9422022D0 (en) 1994-10-31 1994-10-31 Two stage underreamer
GBGB9505430.0A GB9505430D0 (en) 1994-10-31 1995-03-17 2-stage underreamer
GB9813101A GB2323875B (en) 1994-10-31 1995-10-31 Underreamer blade
GB9707616A GB2308608B (en) 1994-10-31 1995-10-31 2-stage underreamer

Publications (3)

Publication Number Publication Date
GB9813101D0 GB9813101D0 (en) 1998-08-19
GB2323875A GB2323875A (en) 1998-10-07
GB2323875B true GB2323875B (en) 1998-11-18

Family

ID=27267453

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9813101A Expired - Lifetime GB2323875B (en) 1994-10-31 1995-10-31 Underreamer blade

Country Status (1)

Country Link
GB (1) GB2323875B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007093771A1 (en) * 2006-02-14 2007-08-23 Smart Stabilizer Systems Limited Downhole assembly and cutter assembly
US7963348B2 (en) * 2007-10-11 2011-06-21 Smith International, Inc. Expandable earth boring apparatus using impregnated and matrix materials for enlarging a borehole

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5174374A (en) * 1991-10-17 1992-12-29 Hailey Charles D Clean-out tool cutting blade
GB2262711A (en) * 1991-12-27 1993-06-30 Hailey Charles D Cutter blades for rotary tubing tools

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5174374A (en) * 1991-10-17 1992-12-29 Hailey Charles D Clean-out tool cutting blade
GB2262711A (en) * 1991-12-27 1993-06-30 Hailey Charles D Cutter blades for rotary tubing tools

Also Published As

Publication number Publication date
GB2323875A (en) 1998-10-07
GB9813101D0 (en) 1998-08-19

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PE20 Patent expired after termination of 20 years

Expiry date: 20151030