NO20064690L - En ekspanderbar borkrone - Google Patents

En ekspanderbar borkrone

Info

Publication number
NO20064690L
NO20064690L NO20064690A NO20064690A NO20064690L NO 20064690 L NO20064690 L NO 20064690L NO 20064690 A NO20064690 A NO 20064690A NO 20064690 A NO20064690 A NO 20064690A NO 20064690 L NO20064690 L NO 20064690L
Authority
NO
Norway
Prior art keywords
drill bit
expandable
drill
expandable drill
arms
Prior art date
Application number
NO20064690A
Other languages
English (en)
Other versions
NO335122B1 (no
Inventor
Henri Denoix
Original Assignee
Schlumberger Technology Bv
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 Schlumberger Technology Bv filed Critical Schlumberger Technology Bv
Publication of NO20064690L publication Critical patent/NO20064690L/no
Publication of NO335122B1 publication Critical patent/NO335122B1/no

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
    • E21B10/32—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools

Abstract

En ekspanderbar borekrone (1) omfatter: en hoveddel (2) for montering på en støttestreng (DS), et flertall borearmer (3A, 3B, 3C, 3D, 4A, 4B, 4C, 4D) koplet til hoveddelen (2) og som strekker seg langs en sentral lengdeakse (LL'), idet minst én borearm understøtter skjæreelementer (6A), og flertallet av borearmer (3A, 3B, 3C, 3D, 4A, 4B, 4C, 4D) er svingbare mellom en tilbaketrukket konfigurasjon og en ekspandert konfigurasjon, idet den tilbaketrukne konfigurasjon definerer en ekspanderbar borekrone (1) med en første skjærediameter (D1), idet den ekspanderte konfigurasjon definerer en ekspanderbar borekrone (1) med en andre skjærediameter (D2) større enn den første skjærediameter. Borearmene (3A, 3B, 3C, 31), 4A, 4B, 4C, 4D) drives fra den tilbaketrukne konfigurasjon inn i den ekspanderte konfigurasjon når den ekspanderbare borekrone (1) roteres med en rotasjonshastighet som er i det minste lik en forut bestemt ekspanderende rotasjonshastighet.
NO20064690A 2005-10-18 2006-10-17 Ekspanderbar borekrone og borekronesystem omfattende en slik borekrone NO335122B1 (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05292193A EP1777365B1 (en) 2005-10-18 2005-10-18 An expandable drill bit

Publications (2)

Publication Number Publication Date
NO20064690L true NO20064690L (no) 2007-04-19
NO335122B1 NO335122B1 (no) 2014-09-22

Family

ID=35892234

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20064690A NO335122B1 (no) 2005-10-18 2006-10-17 Ekspanderbar borekrone og borekronesystem omfattende en slik borekrone

Country Status (5)

Country Link
US (1) US7410015B2 (no)
EP (1) EP1777365B1 (no)
AT (1) ATE438783T1 (no)
DE (1) DE602005015865D1 (no)
NO (1) NO335122B1 (no)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2454918B (en) * 2007-11-23 2011-11-02 Schlumberger Holdings Adjustable drill bit
US8439135B2 (en) 2010-04-01 2013-05-14 Center Rock Inc. Down-the-hole drill hammer having an extendable drill bit assembly
NZ604152A (en) * 2010-05-07 2015-03-27 Obelix Holdings Pty Ltd Undercutting tool
US9080399B2 (en) 2011-06-14 2015-07-14 Baker Hughes Incorporated Earth-boring tools including retractable pads, cartridges including retractable pads for such tools, and related methods
CN103470186B (zh) * 2012-06-07 2016-01-06 张卫星 一种煤矿瓦斯抽采孔钻头
SE536758C2 (sv) * 2012-11-28 2014-07-15 Atlas Copco Rock Drills Ab Slagverk till en hydraulisk bergborrmaskin, förfarande för drift av ett slagverk och hydraulisk bergborrmaskin inkluderande ett slagverk
CN104321175B (zh) * 2013-02-19 2017-08-01 Fs技术公司 扩径用钻头
US10590724B2 (en) 2013-10-28 2020-03-17 Wellbore Integrity Solutions Llc Mill with adjustable gauge diameter
RU2635703C1 (ru) * 2015-04-13 2017-11-15 ЭфЭс Текникал Корпорейшн Буровое долото для расширения диаметра
GB2540391B (en) * 2015-07-15 2021-02-17 Nov Downhole Eurasia Ltd Downhole apparatus
US10119350B2 (en) * 2016-05-26 2018-11-06 Baker Hughes, A Ge Company, Llc Expandable junk mill
AU2018299423A1 (en) * 2017-07-12 2020-01-16 Gary Richard ADAMS Boring tool
KR20200032727A (ko) 2017-07-24 2020-03-26 룩 찰랜드 드릴링 시스템 및 이를 이용한 방법
US11111730B2 (en) * 2017-08-04 2021-09-07 Halliburton Energy Services, Inc. Downhole adjustable drill bits
GB2569330B (en) 2017-12-13 2021-01-06 Nov Downhole Eurasia Ltd Downhole devices and associated apparatus and methods
DE102018105340A1 (de) * 2018-03-08 2019-09-12 Mhwirth Gmbh Bohrkopf und diesen umfassendes Bohrsystem
GB2609868B (en) * 2019-04-05 2023-07-19 Raptor Anchoring Ltd A fixation device
GB2582821B (en) * 2019-04-05 2022-12-28 Raptor Anchoring Ltd A fixation device
CN113958327B (zh) * 2021-10-20 2024-03-29 中铁六局集团有限公司 一种盾构机下穿地连墙施工装置及其施工方法

Family Cites Families (18)

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Publication number Priority date Publication date Assignee Title
US1467480A (en) * 1921-12-19 1923-09-11 Petroleum Recovery Corp Well reamer
US1899727A (en) 1930-08-08 1933-02-28 Sandstone Harvey David Combination cutting drill and reaming bit
US2654576A (en) * 1950-08-18 1953-10-06 Archer W Kammerer Expansible rotary drill bit
US2705129A (en) * 1952-04-04 1955-03-29 Jack K Menton Under-reaming bit
GB766242A (en) * 1955-03-23 1957-01-16 Archer William Kammerer Rotary expansible well drill bits
US3236320A (en) * 1963-10-02 1966-02-22 John E Russ Well rotor
US3351144A (en) * 1965-04-05 1967-11-07 Baker Oil Tools Inc Rotary expansible drilling apparatus with centrifugally operated latch
SU501139A1 (ru) * 1973-12-14 1976-01-30 Всесоюзный Ордена Трудового Красного Знамени Научно-Исследовательский Институт Буровой Техники Устройство дл расширени скважин
US4031972A (en) * 1976-03-08 1977-06-28 Burg Irving X Expandable and contractible rotary well drilling bit
US4141421A (en) * 1977-08-17 1979-02-27 Gardner Benjamin R Under reamer
US4976323A (en) * 1989-06-30 1990-12-11 Kitchens Richard A Counterboring device for wells
US5255741A (en) * 1991-12-11 1993-10-26 Mobil Oil Corporation Process and apparatus for completing a well in an unconsolidated formation
US5361859A (en) * 1993-02-12 1994-11-08 Baker Hughes Incorporated Expandable gage bit for drilling and method of drilling
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US6070677A (en) * 1997-12-02 2000-06-06 I.D.A. Corporation Method and apparatus for enhancing production from a wellbore hole
GB0009834D0 (en) 2000-04-25 2000-06-07 Brit Bit Limited Expandable bit
US6454024B1 (en) * 2000-10-27 2002-09-24 Alan L. Nackerud Replaceable drill bit assembly
US6953096B2 (en) * 2002-12-31 2005-10-11 Weatherford/Lamb, Inc. Expandable bit with secondary release device

Also Published As

Publication number Publication date
EP1777365B1 (en) 2009-08-05
US7410015B2 (en) 2008-08-12
ATE438783T1 (de) 2009-08-15
NO335122B1 (no) 2014-09-22
US20070102195A1 (en) 2007-05-10
EP1777365A1 (en) 2007-04-25
DE602005015865D1 (de) 2009-09-17

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