CA2689140A1 - Interchangeable bearing blocks for drill bits, and drill bits including same - Google Patents

Interchangeable bearing blocks for drill bits, and drill bits including same Download PDF

Info

Publication number
CA2689140A1
CA2689140A1 CA002689140A CA2689140A CA2689140A1 CA 2689140 A1 CA2689140 A1 CA 2689140A1 CA 002689140 A CA002689140 A CA 002689140A CA 2689140 A CA2689140 A CA 2689140A CA 2689140 A1 CA2689140 A1 CA 2689140A1
Authority
CA
Canada
Prior art keywords
bit
drill bits
frame
depth
cut
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CA002689140A
Other languages
French (fr)
Other versions
CA2689140C (en
Inventor
Enis Aliko
Thorsten Schwefe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Baker Hughes Holdings LLC
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2689140A1 publication Critical patent/CA2689140A1/en
Application granted granted Critical
Publication of CA2689140C publication Critical patent/CA2689140C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • E21B10/42Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits
    • 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
    • E21B10/62Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable

Abstract

A bearing block (40) is provided that may be used with a drag bit body (1 0) or frame to limit depth of cut of cutters on a bit. The bearing block is designed so that it may be interchangeably replaced or repaired without nece ssitating alteration to a standardized bit frame. The interchangeable bearin g block may be used to provide a target depth of cut (TDOC) and/or a selecte d contact or rubbing area (32) to support weight on bit and limit depth of c ut (DOC) for improving drilling performance of a bit. The interchangeable be aring block brings manufacturing selectability by providing. a customizable product in terms of depth of cut selection and cutter penetration control fo r different formations, which is suitable for use with a common bit frame. A rotary drill bit assembly, a unitary cone insert bearing block for a drill bit, and a bit frame are also provided.

Claims

CA2689140A 2007-06-14 2008-06-13 Interchangeable bearing blocks for drill bits, and drill bits including same Expired - Fee Related CA2689140C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US11/818,820 US7814997B2 (en) 2007-06-14 2007-06-14 Interchangeable bearing blocks for drill bits, and drill bits including same
US11/818,820 2007-06-14
PCT/US2008/066947 WO2008157371A1 (en) 2007-06-14 2008-06-13 Interchangeable bearing blocks for drill bits, and drill bits including same

Publications (2)

Publication Number Publication Date
CA2689140A1 true CA2689140A1 (en) 2008-12-24
CA2689140C CA2689140C (en) 2012-11-27

Family

ID=39800649

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2689140A Expired - Fee Related CA2689140C (en) 2007-06-14 2008-06-13 Interchangeable bearing blocks for drill bits, and drill bits including same

Country Status (4)

Country Link
US (3) US7814997B2 (en)
EP (1) EP2171205B1 (en)
CA (1) CA2689140C (en)
WO (1) WO2008157371A1 (en)

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US7814997B2 (en) 2007-06-14 2010-10-19 Baker Hughes Incorporated Interchangeable bearing blocks for drill bits, and drill bits including same
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Also Published As

Publication number Publication date
US8459382B2 (en) 2013-06-11
WO2008157371A1 (en) 2008-12-24
US20080308321A1 (en) 2008-12-18
US7814997B2 (en) 2010-10-19
EP2171205A1 (en) 2010-04-07
US8757297B2 (en) 2014-06-24
WO2008157371A4 (en) 2009-02-19
US20110100721A1 (en) 2011-05-05
CA2689140C (en) 2012-11-27
EP2171205B1 (en) 2013-12-11
US20130292187A1 (en) 2013-11-07

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Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20170613