BR9815553A - Sistema de perfuração de circulação inversa combraços de escareador inferior travados na broca - Google Patents

Sistema de perfuração de circulação inversa combraços de escareador inferior travados na broca

Info

Publication number
BR9815553A
BR9815553A BR9815553-9A BR9815553A BR9815553A BR 9815553 A BR9815553 A BR 9815553A BR 9815553 A BR9815553 A BR 9815553A BR 9815553 A BR9815553 A BR 9815553A
Authority
BR
Brazil
Prior art keywords
drill
countersink
lower countersink
drilling system
assembly
Prior art date
Application number
BR9815553-9A
Other languages
English (en)
Portuguese (pt)
Inventor
Ardis L Holte
Original Assignee
Ardis L Holte
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 Ardis L Holte filed Critical Ardis L Holte
Publication of BR9815553A publication Critical patent/BR9815553A/pt

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
    • E21B10/64—Drill bits characterised by the whole or part thereof being insertable into or removable from the borehole without withdrawing the drilling pipe
    • E21B10/66—Drill bits characterised by the whole or part thereof being insertable into or removable from the borehole without withdrawing the drilling pipe the cutting element movable through the drilling pipe and laterally shiftable
BR9815553-9A 1997-07-18 1998-07-17 Sistema de perfuração de circulação inversa combraços de escareador inferior travados na broca BR9815553A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US89678797A 1997-07-18 1997-07-18
PCT/US1998/014651 WO1999004130A1 (en) 1997-07-18 1998-07-17 Reverse circulation drilling system with bit locked underreamer arms

Publications (1)

Publication Number Publication Date
BR9815553A true BR9815553A (pt) 2001-12-11

Family

ID=25406839

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9815553-9A BR9815553A (pt) 1997-07-18 1998-07-17 Sistema de perfuração de circulação inversa combraços de escareador inferior travados na broca

Country Status (9)

Country Link
EP (1) EP0996810A1 (ko)
JP (1) JP2001510256A (ko)
KR (1) KR20010021997A (ko)
CN (1) CN1263937C (ko)
AU (1) AU755442C (ko)
BR (1) BR9815553A (ko)
CA (1) CA2296470A1 (ko)
HK (1) HK1030253A1 (ko)
WO (1) WO1999004130A1 (ko)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9415496B2 (en) 2013-11-13 2016-08-16 Varel International Ind., L.P. Double wall flow tube for percussion tool
US9328558B2 (en) 2013-11-13 2016-05-03 Varel International Ind., L.P. Coating of the piston for a rotating percussion system in downhole drilling
US9404342B2 (en) 2013-11-13 2016-08-02 Varel International Ind., L.P. Top mounted choke for percussion tool
US9562392B2 (en) 2013-11-13 2017-02-07 Varel International Ind., L.P. Field removable choke for mounting in the piston of a rotary percussion tool

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE8901199L (sv) * 1989-04-05 1990-10-06 Uniroc Ab Excentrisk borrkrona
US5186265A (en) * 1991-08-22 1993-02-16 Atlantic Richfield Company Retrievable bit and eccentric reamer assembly
US5511628A (en) * 1995-01-20 1996-04-30 Holte; Ardis L. Pneumatic drill with central evacuation outlet
RU2382669C1 (ru) 2008-12-29 2010-02-27 ЗАО "Твин Трейдинг Компани" Способ экстрагирования материалов и устройство для его осуществления

Also Published As

Publication number Publication date
AU8487398A (en) 1999-02-10
CN1263937C (zh) 2006-07-12
AU755442C (en) 2003-06-12
JP2001510256A (ja) 2001-07-31
CA2296470A1 (en) 1999-01-28
WO1999004130A1 (en) 1999-01-28
EP0996810A1 (en) 2000-05-03
HK1030253A1 (en) 2001-04-27
KR20010021997A (ko) 2001-03-15
CN1270655A (zh) 2000-10-18
AU755442B2 (en) 2002-12-12

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Legal Events

Date Code Title Description
FA10 Dismissal: dismissal - article 33 of industrial property law
B11Y Definitive dismissal - extension of time limit for request of examination expired [chapter 11.1.1 patent gazette]