WO2011129958A3 - Reverse circulation hammer with modular bit - Google Patents

Reverse circulation hammer with modular bit Download PDF

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Publication number
WO2011129958A3
WO2011129958A3 PCT/US2011/029449 US2011029449W WO2011129958A3 WO 2011129958 A3 WO2011129958 A3 WO 2011129958A3 US 2011029449 W US2011029449 W US 2011029449W WO 2011129958 A3 WO2011129958 A3 WO 2011129958A3
Authority
WO
Grant status
Application
Patent type
Prior art keywords
reverse circulation
drilling
modular bit
bits
bit
Prior art date
Application number
PCT/US2011/029449
Other languages
French (fr)
Other versions
WO2011129958A2 (en )
Inventor
Timothy W. Conn
Original Assignee
Wvc Mincon 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

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00Drill bits
    • E21B10/36Percussion drill bits
    • E21B10/38Percussion drill bits characterised by conduits or nozzles for drilling fluids
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B4/00Drives used in the borehole
    • E21B4/06Down-hole impacting means, e.g. hammers
    • E21B4/14Fluid operated hammers

Abstract

Embodiments provide apparatuses and methods for excavation and drilling, particularly reverse circulation hammers and bits. Reverse circulation hammers and bits manufactured in accordance with various embodiments may help to prevent fatigue and breaking of the bit during a drilling operation, may prevent clogging of return holes, may provide higher efficiency drilling operations, and may provide modular bit designs that may be interchanged to suit a particular drilling operation.
PCT/US2011/029449 2010-04-16 2011-03-22 Reverse circulation hammer with modular bit WO2011129958A3 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US32522810 true 2010-04-16 2010-04-16
US61/325,228 2010-04-16

Publications (2)

Publication Number Publication Date
WO2011129958A2 true WO2011129958A2 (en) 2011-10-20
WO2011129958A3 true true WO2011129958A3 (en) 2011-12-22

Family

ID=44787343

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2011/029449 WO2011129958A3 (en) 2010-04-16 2011-03-22 Reverse circulation hammer with modular bit

Country Status (2)

Country Link
US (1) US20110253456A1 (en)
WO (1) WO2011129958A3 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5207280A (en) * 1991-05-30 1993-05-04 Uniroc Ab Device in hammer machines
US6315063B1 (en) * 1999-11-02 2001-11-13 Leo A. Martini Reciprocating rotary drilling motor
US20050045385A1 (en) * 2001-12-21 2005-03-03 Stjernstrom Karl Axel Down-the-hole drill hammer
US20070137899A1 (en) * 2005-12-15 2007-06-21 Rockmore International, Inc. Keyed connection for drill bit

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5207280A (en) * 1991-05-30 1993-05-04 Uniroc Ab Device in hammer machines
US6315063B1 (en) * 1999-11-02 2001-11-13 Leo A. Martini Reciprocating rotary drilling motor
US20050045385A1 (en) * 2001-12-21 2005-03-03 Stjernstrom Karl Axel Down-the-hole drill hammer
US20070137899A1 (en) * 2005-12-15 2007-06-21 Rockmore International, Inc. Keyed connection for drill bit

Also Published As

Publication number Publication date Type
WO2011129958A2 (en) 2011-10-20 application
US20110253456A1 (en) 2011-10-20 application

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