WO2012171643A3 - Two-centre rotary boring bit and method for deepening an existing well - Google Patents

Two-centre rotary boring bit and method for deepening an existing well Download PDF

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Publication number
WO2012171643A3
WO2012171643A3 PCT/EP2012/002510 EP2012002510W WO2012171643A3 WO 2012171643 A3 WO2012171643 A3 WO 2012171643A3 EP 2012002510 W EP2012002510 W EP 2012002510W WO 2012171643 A3 WO2012171643 A3 WO 2012171643A3
Authority
WO
WIPO (PCT)
Prior art keywords
boring bit
tool
deepening
existing well
rotary boring
Prior art date
Application number
PCT/EP2012/002510
Other languages
French (fr)
Other versions
WO2012171643A2 (en
Inventor
Sébastian DESMETTE
Abdelhakim Hahati
Benoit Deschamps
Original Assignee
Omni Ip Ltd.
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 Omni Ip Ltd. filed Critical Omni Ip Ltd.
Priority to US14/125,413 priority Critical patent/US20140131111A1/en
Priority to EP12732786.4A priority patent/EP2721242B1/en
Publication of WO2012171643A2 publication Critical patent/WO2012171643A2/en
Publication of WO2012171643A3 publication Critical patent/WO2012171643A3/en

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
    • E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
    • E21B10/265—Bi-center drill bits, i.e. an integral bit and eccentric reamer used to simultaneously drill and underream the hole

Abstract

Two-centre rotary boring bit for boring wells, comprising, on the one hand, a pilot tool (1) comprising a body of revolution with an axial core (3) and radial blades (4) bearing cutting elements (5) and, on the other hand, an enlarging tool (2) fitted behind the pilot tool and laterally offset therefrom, the pilot tool having, on its front face, a central region (11) that has no cutting elements in order to allow the creation of a core sample (12), said central region being in communication with a cavity (13) situated between two blades (4) of the pilot tool (1) and serving to remove the core sample toward the periphery of the boring bit.
PCT/EP2012/002510 2011-06-16 2012-06-14 Two-centre rotary boring bit and method for deepening an existing well WO2012171643A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US14/125,413 US20140131111A1 (en) 2011-06-16 2012-06-14 Two-centre rotary boring bit and method for deepening an existing well
EP12732786.4A EP2721242B1 (en) 2011-06-16 2012-06-14 Two-centre rotary boring bit and method for deepening an existing well

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE2011/0371A BE1020012A3 (en) 2011-06-16 2011-06-16 BI-CENTER ROTARY TREPAN AND METHOD FOR EXTENDING PREEXISTANT WELL.
BE2011/0371 2011-06-16

Publications (2)

Publication Number Publication Date
WO2012171643A2 WO2012171643A2 (en) 2012-12-20
WO2012171643A3 true WO2012171643A3 (en) 2013-07-18

Family

ID=45478608

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/002510 WO2012171643A2 (en) 2011-06-16 2012-06-14 Two-centre rotary boring bit and method for deepening an existing well

Country Status (4)

Country Link
US (1) US20140131111A1 (en)
EP (1) EP2721242B1 (en)
BE (1) BE1020012A3 (en)
WO (1) WO2012171643A2 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8851205B1 (en) 2011-04-08 2014-10-07 Hard Rock Solutions, Llc Method and apparatus for reaming well bore surfaces nearer the center of drift
CN104093926B (en) * 2011-10-03 2016-07-13 高级技术有限责任公司 Well regulates system
CN104850671B (en) * 2014-02-18 2017-03-15 中国石油化工股份有限公司 The grid cutting algorithm in rock core complexity duct
US10024105B2 (en) * 2015-02-25 2018-07-17 Radius Hdd Direct, Llc Rock bit
US10492107B2 (en) 2016-11-03 2019-11-26 Ofinno, Llc SPS configuration during handover
USD863919S1 (en) 2017-09-08 2019-10-22 XR Lateral, LLC Directional drilling assembly
USD877780S1 (en) * 2017-09-08 2020-03-10 XR Lateral, LLC Directional drilling assembly
CA3075388A1 (en) 2017-09-09 2019-03-14 Extreme Technologies, Llc Well bore conditioner and stabilizer
EP3695090B1 (en) 2017-10-10 2023-12-06 Extreme Technologies, LLC Wellbore reaming systems and devices

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6039131A (en) * 1997-08-25 2000-03-21 Smith International, Inc. Directional drift and drill PDC drill bit
US6394200B1 (en) * 1999-10-28 2002-05-28 Camco International (U.K.) Limited Drillout bi-center bit
WO2008149240A2 (en) * 2007-04-23 2008-12-11 Total S.A. Bit for drilling wells and associated drilling method

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SG34341A1 (en) * 1994-12-20 1996-12-06 Smith International Self-centering polycrystalline diamond drill bit
US5678644A (en) * 1995-08-15 1997-10-21 Diamond Products International, Inc. Bi-center and bit method for enhancing stability
US6659207B2 (en) 1999-06-30 2003-12-09 Smith International, Inc. Bi-centered drill bit having enhanced casing drill-out capability and improved directional stability
US6394202B2 (en) 1999-06-30 2002-05-28 Smith International, Inc. Drill bit having diamond impregnated inserts primary cutting structure

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6039131A (en) * 1997-08-25 2000-03-21 Smith International, Inc. Directional drift and drill PDC drill bit
US6394200B1 (en) * 1999-10-28 2002-05-28 Camco International (U.K.) Limited Drillout bi-center bit
WO2008149240A2 (en) * 2007-04-23 2008-12-11 Total S.A. Bit for drilling wells and associated drilling method

Also Published As

Publication number Publication date
EP2721242A2 (en) 2014-04-23
US20140131111A1 (en) 2014-05-15
BE1020012A3 (en) 2013-03-05
WO2012171643A2 (en) 2012-12-20
EP2721242B1 (en) 2016-01-20

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