WO2011059685A3 - Backup cutting elements on non concentric earth boring tools and related methods - Google Patents

Backup cutting elements on non concentric earth boring tools and related methods Download PDF

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Publication number
WO2011059685A3
WO2011059685A3 PCT/US2010/053950 US2010053950W WO2011059685A3 WO 2011059685 A3 WO2011059685 A3 WO 2011059685A3 US 2010053950 W US2010053950 W US 2010053950W WO 2011059685 A3 WO2011059685 A3 WO 2011059685A3
Authority
WO
WIPO (PCT)
Prior art keywords
bit section
cutting elements
backup cutting
related methods
earth boring
Prior art date
Application number
PCT/US2010/053950
Other languages
French (fr)
Other versions
WO2011059685A2 (en
WO2011059685A4 (en
Inventor
William A. Moss
David L. Rickabaugh
Mark E. Anderson
Original Assignee
Baker Hughes Incorporated
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 Baker Hughes Incorporated filed Critical Baker Hughes Incorporated
Publication of WO2011059685A2 publication Critical patent/WO2011059685A2/en
Publication of WO2011059685A3 publication Critical patent/WO2011059685A3/en
Publication of WO2011059685A4 publication Critical patent/WO2011059685A4/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

An apparatus for engaging a subterranean borehole includes a bi-center bit having backup cutting elements thereon. The bi-center bit includes a pilot bit section and a reamer bit section adjacent to the pilot bit section. The pilot bit section includes at least one primary cutting element and at least one backup cutting element rotationally trailing and laterally offset from the at least one primary cutting element. Methods of drilling a subterranean borehole include engaging a first portion of a borehole with a reamer bit section of a drill bit and simultaneously engaging a second, opposing portion of the borehole with a pilot bit section adjacent to the reamer bit section.
PCT/US2010/053950 2009-10-29 2010-10-25 Backup cutting elements on non concentric earth boring tools and related methods WO2011059685A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12/608,832 US20110100714A1 (en) 2009-10-29 2009-10-29 Backup cutting elements on non-concentric earth-boring tools and related methods
US12/608,832 2009-10-29

Publications (3)

Publication Number Publication Date
WO2011059685A2 WO2011059685A2 (en) 2011-05-19
WO2011059685A3 true WO2011059685A3 (en) 2011-08-04
WO2011059685A4 WO2011059685A4 (en) 2011-09-29

Family

ID=43924198

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2010/053950 WO2011059685A2 (en) 2009-10-29 2010-10-25 Backup cutting elements on non concentric earth boring tools and related methods

Country Status (2)

Country Link
US (1) US20110100714A1 (en)
WO (1) WO2011059685A2 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110005841A1 (en) * 2009-07-07 2011-01-13 Baker Hughes Incorporated Backup cutting elements on non-concentric reaming tools
RU2487984C1 (en) * 2012-03-30 2013-07-20 Николай Митрофанович Панин Expander
EP2692982A3 (en) * 2012-08-01 2017-07-26 Halliburton Energy Services, Inc. Near-bit borehole opener tool and method of reaming
US10066444B2 (en) 2015-12-02 2018-09-04 Baker Hughes Incorporated Earth-boring tools including selectively actuatable cutting elements and related methods
US10214968B2 (en) 2015-12-02 2019-02-26 Baker Hughes Incorporated Earth-boring tools including selectively actuatable cutting elements and related methods
CN110678622B (en) 2017-05-05 2021-12-21 史密斯国际有限公司 Stepped downhole tool and method of use
WO2019022971A1 (en) * 2017-07-25 2019-01-31 Halliburton Energy Services, Inc. Fixed-cutter drill bits with track-set primary cutters and backup cutters
KR102022118B1 (en) * 2019-01-07 2019-09-18 주식회사 아스트로젠 Serine derivative compound for the prevention or treatment of centralnervous system diseases

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5531281A (en) * 1993-07-16 1996-07-02 Camco Drilling Group Ltd. Rotary drilling tools
US6394200B1 (en) * 1999-10-28 2002-05-28 Camco International (U.K.) Limited Drillout bi-center bit
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
US20080179106A1 (en) * 2007-01-25 2008-07-31 Baker Hughes Incorporated Rotary drag bit

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3414206C1 (en) * 1984-04-14 1985-02-21 Norton Christensen, Inc., Salt Lake City, Utah Rotary drill bit for deep drilling
US5497842A (en) * 1995-04-28 1996-03-12 Baker Hughes Incorporated Reamer wing for enlarging a borehole below a smaller-diameter portion therof
USRE36817E (en) * 1995-04-28 2000-08-15 Baker Hughes Incorporated Method and apparatus for drilling and enlarging a borehole
US5765653A (en) * 1996-10-09 1998-06-16 Baker Hughes Incorporated Reaming apparatus and method with enhanced stability and transition from pilot hole to enlarged bore diameter
US5957223A (en) * 1997-03-05 1999-09-28 Baker Hughes Incorporated Bi-center drill bit with enhanced stabilizing features
US6269893B1 (en) * 1999-06-30 2001-08-07 Smith International, Inc. Bi-centered drill bit having improved drilling stability mud hydraulics and resistance to cutter damage
US6695080B2 (en) * 1999-09-09 2004-02-24 Baker Hughes Incorporated Reaming apparatus and method with enhanced structural protection
DE60100727T2 (en) * 2000-08-21 2004-07-22 Camco International (Uk) Ltd., Stonehouse Multi-directional cutting elements for bi-central drilling tools for drilling a casing shoe
US6408958B1 (en) * 2000-10-23 2002-06-25 Baker Hughes Incorporated Superabrasive cutting assemblies including cutters of varying orientations and drill bits so equipped
US6739416B2 (en) * 2002-03-13 2004-05-25 Baker Hughes Incorporated Enhanced offset stabilization for eccentric reamers
US7776256B2 (en) * 2005-11-10 2010-08-17 Baker Huges Incorporated Earth-boring rotary drill bits and methods of manufacturing earth-boring rotary drill bits having particle-matrix composite bit bodies
US7802495B2 (en) * 2005-11-10 2010-09-28 Baker Hughes Incorporated Methods of forming earth-boring rotary drill bits
US7419016B2 (en) * 2006-03-23 2008-09-02 Hall David R Bi-center drill bit
US20070261890A1 (en) * 2006-05-10 2007-11-15 Smith International, Inc. Fixed Cutter Bit With Centrally Positioned Backup Cutter Elements
US7845435B2 (en) * 2007-04-05 2010-12-07 Baker Hughes Incorporated Hybrid drill bit and method of drilling
US7703557B2 (en) * 2007-06-11 2010-04-27 Smith International, Inc. Fixed cutter bit with backup cutter elements on primary blades
US9016407B2 (en) * 2007-12-07 2015-04-28 Smith International, Inc. Drill bit cutting structure and methods to maximize depth-of-cut for weight on bit applied
US8127863B2 (en) * 2007-12-10 2012-03-06 Smith International, Inc. Drill bit having enhanced stabilization features and method of use thereof
US7770664B2 (en) * 2008-05-29 2010-08-10 Smith International, Inc. Wear indicators for expandable earth boring apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5531281A (en) * 1993-07-16 1996-07-02 Camco Drilling Group Ltd. Rotary drilling tools
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
US6394200B1 (en) * 1999-10-28 2002-05-28 Camco International (U.K.) Limited Drillout bi-center bit
US20080179106A1 (en) * 2007-01-25 2008-07-31 Baker Hughes Incorporated Rotary drag bit

Also Published As

Publication number Publication date
WO2011059685A2 (en) 2011-05-19
US20110100714A1 (en) 2011-05-05
WO2011059685A4 (en) 2011-09-29

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