WO2011043988A3 - Hole opener with hybrid reaming section - Google Patents

Hole opener with hybrid reaming section Download PDF

Info

Publication number
WO2011043988A3
WO2011043988A3 PCT/US2010/051020 US2010051020W WO2011043988A3 WO 2011043988 A3 WO2011043988 A3 WO 2011043988A3 US 2010051020 W US2010051020 W US 2010051020W WO 2011043988 A3 WO2011043988 A3 WO 2011043988A3
Authority
WO
WIPO (PCT)
Prior art keywords
fixed blade
rolling
coupled
cutting profile
diameter
Prior art date
Application number
PCT/US2010/051020
Other languages
French (fr)
Other versions
WO2011043988A2 (en
Inventor
Robert J. Buske
Rudolf C. Pessier
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
Priority to CA2776575A priority Critical patent/CA2776575C/en
Priority to EP10765890.8A priority patent/EP2486217B1/en
Publication of WO2011043988A2 publication Critical patent/WO2011043988A2/en
Publication of WO2011043988A3 publication Critical patent/WO2011043988A3/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
    • E21B10/08—Roller bits
    • E21B10/14—Roller bits combined with non-rolling cutters other than of leading-portion type
    • 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
    • E21B10/28—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with non-expansible roller cutters
    • 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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/28—Enlarging drilled holes, e.g. by counterboring

Abstract

A hole opener ( 100 ) having a hybrid reaming section for downhole earth boring operations may include a reamer body ( 103 ) having an axis of rotation, an outer periphery, and upper and lower ends, a plurality of rolling cutters ( 110 ) coupled to the outer periphery, the rolling cutters defining a rolling cutter cutting profile having a cutting diameter, a plurality of fixed blade cutters ( 106 ) coupled to the outer periphery and defining a fixed blade cutter cutting profile having a cutting diameter, each fixed blade cutter being coupled between adjacent rolling cutters. At least one fixed blade cutter may be asymmetrically coupled about the axis. The cutting diameter of the fixed blade cutter cutting profile and the cutting diameter of the rolling cutter cutting profile may collectively define a gage diameter. At least a portion of the fixed blade cutter cutting profile may be deeper than the rolling cutter cutting profile.
PCT/US2010/051020 2009-10-06 2010-09-30 Hole opener with hybrid reaming section WO2011043988A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CA2776575A CA2776575C (en) 2009-10-06 2010-09-30 Hole opener with hybrid reaming section
EP10765890.8A EP2486217B1 (en) 2009-10-06 2010-09-30 Hole opener with hybrid reaming section

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12/574,560 2009-10-06
US12/574,560 US8448724B2 (en) 2009-10-06 2009-10-06 Hole opener with hybrid reaming section

Publications (2)

Publication Number Publication Date
WO2011043988A2 WO2011043988A2 (en) 2011-04-14
WO2011043988A3 true WO2011043988A3 (en) 2011-07-21

Family

ID=43822327

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2010/051020 WO2011043988A2 (en) 2009-10-06 2010-09-30 Hole opener with hybrid reaming section

Country Status (4)

Country Link
US (1) US8448724B2 (en)
EP (1) EP2486217B1 (en)
CA (1) CA2776575C (en)
WO (1) WO2011043988A2 (en)

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US20110079443A1 (en) 2011-04-07
US8448724B2 (en) 2013-05-28

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