ITTO20000816A0 - Punte da perforazione con elementi fresanti a carico controllato e profondita' di taglio controllata. - Google Patents

Punte da perforazione con elementi fresanti a carico controllato e profondita' di taglio controllata.

Info

Publication number
ITTO20000816A0
ITTO20000816A0 IT2000TO000816A ITTO20000816A ITTO20000816A0 IT TO20000816 A0 ITTO20000816 A0 IT TO20000816A0 IT 2000TO000816 A IT2000TO000816 A IT 2000TO000816A IT TO20000816 A ITTO20000816 A IT TO20000816A IT TO20000816 A0 ITTO20000816 A0 IT TO20000816A0
Authority
IT
Italy
Prior art keywords
controlled
cutting depth
milling elements
drilling tips
load milling
Prior art date
Application number
IT2000TO000816A
Other languages
English (en)
Inventor
Gordon A Tibbitts
Wayne R Hansen
Craig H Cooley
L Allen Sinor
Mark W Dykstra
Original Assignee
Baker Hughes Inc
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=23512245&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ITTO20000816(A0) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Baker Hughes Inc filed Critical Baker Hughes Inc
Publication of ITTO20000816A0 publication Critical patent/ITTO20000816A0/it
Publication of ITTO20000816A1 publication Critical patent/ITTO20000816A1/it
Application granted granted Critical
Publication of IT1320602B1 publication Critical patent/IT1320602B1/it

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/42—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits
    • E21B10/43—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits characterised by the arrangement of teeth or other cutting elements
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/56—Button-type inserts
    • E21B10/567—Button-type inserts with preformed cutting elements mounted on a distinct support, e.g. polycrystalline inserts
    • E21B10/5671—Button-type inserts with preformed cutting elements mounted on a distinct support, e.g. polycrystalline inserts with chip breaking arrangements
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/56—Button-type inserts
    • E21B10/567—Button-type inserts with preformed cutting elements mounted on a distinct support, e.g. polycrystalline inserts
    • E21B10/573—Button-type inserts with preformed cutting elements mounted on a distinct support, e.g. polycrystalline inserts characterised by support details, e.g. the substrate construction or the interface between the substrate and the cutting element

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Earth Drilling (AREA)
  • Automatic Control Of Machine Tools (AREA)
IT2000TO000816A 1999-08-26 2000-08-25 Punte da perforazione con elementi fresanti a carico controllato eprofondita' di taglio controllata. IT1320602B1 (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/383,228 US6298930B1 (en) 1999-08-26 1999-08-26 Drill bits with controlled cutter loading and depth of cut

Publications (3)

Publication Number Publication Date
ITTO20000816A0 true ITTO20000816A0 (it) 2000-08-25
ITTO20000816A1 ITTO20000816A1 (it) 2002-02-25
IT1320602B1 IT1320602B1 (it) 2003-12-10

Family

ID=23512245

Family Applications (1)

Application Number Title Priority Date Filing Date
IT2000TO000816A IT1320602B1 (it) 1999-08-26 2000-08-25 Punte da perforazione con elementi fresanti a carico controllato eprofondita' di taglio controllata.

Country Status (4)

Country Link
US (1) US6298930B1 (it)
BE (1) BE1013652A3 (it)
GB (1) GB2353548B (it)
IT (1) IT1320602B1 (it)

Families Citing this family (109)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6460631B2 (en) * 1999-08-26 2002-10-08 Baker Hughes Incorporated Drill bits with reduced exposure of cutters
US6510906B1 (en) * 1999-11-29 2003-01-28 Baker Hughes Incorporated Impregnated bit with PDC cutters in cone area
US6843333B2 (en) 1999-11-29 2005-01-18 Baker Hughes Incorporated Impregnated rotary drag bit
US7020597B2 (en) * 2000-10-11 2006-03-28 Smith International, Inc. Methods for evaluating and improving drilling operations
US7693695B2 (en) * 2000-03-13 2010-04-06 Smith International, Inc. Methods for modeling, displaying, designing, and optimizing fixed cutter bits
US6785641B1 (en) * 2000-10-11 2004-08-31 Smith International, Inc. Simulating the dynamic response of a drilling tool assembly and its application to drilling tool assembly design optimization and drilling performance optimization
US20050273304A1 (en) * 2000-03-13 2005-12-08 Smith International, Inc. Methods for evaluating and improving drilling operations
US9482055B2 (en) * 2000-10-11 2016-11-01 Smith International, Inc. Methods for modeling, designing, and optimizing the performance of drilling tool assemblies
US8589124B2 (en) * 2000-08-09 2013-11-19 Smith International, Inc. Methods for modeling wear of fixed cutter bits and for designing and optimizing fixed cutter bits
US6408958B1 (en) * 2000-10-23 2002-06-25 Baker Hughes Incorporated Superabrasive cutting assemblies including cutters of varying orientations and drill bits so equipped
US6536543B2 (en) 2000-12-06 2003-03-25 Baker Hughes Incorporated Rotary drill bits exhibiting sequences of substantially continuously variable cutter backrake angles
US6568492B2 (en) * 2001-03-02 2003-05-27 Varel International, Inc. Drag-type casing mill/drill bit
US6659199B2 (en) * 2001-08-13 2003-12-09 Baker Hughes Incorporated Bearing elements for drill bits, drill bits so equipped, and method of drilling
CA2734730A1 (en) * 2003-07-09 2005-01-27 Smith International, Inc. Methods for designing fixed cutter bits and bits made using such methods
US7395882B2 (en) 2004-02-19 2008-07-08 Baker Hughes Incorporated Casing and liner drilling bits
US7954570B2 (en) 2004-02-19 2011-06-07 Baker Hughes Incorporated Cutting elements configured for casing component drillout and earth boring drill bits including same
US7624818B2 (en) * 2004-02-19 2009-12-01 Baker Hughes Incorporated Earth boring drill bits with casing component drill out capability and methods of use
US7360608B2 (en) 2004-09-09 2008-04-22 Baker Hughes Incorporated Rotary drill bits including at least one substantially helically extending feature and methods of operation
US7831419B2 (en) * 2005-01-24 2010-11-09 Smith International, Inc. PDC drill bit with cutter design optimized with dynamic centerline analysis having an angular separation in imbalance forces of 180 degrees for maximum time
US7441612B2 (en) * 2005-01-24 2008-10-28 Smith International, Inc. PDC drill bit using optimized side rake angle
US20060162968A1 (en) * 2005-01-24 2006-07-27 Smith International, Inc. PDC drill bit using optimized side rake distribution that minimized vibration and deviation
US7455125B2 (en) * 2005-02-22 2008-11-25 Baker Hughes Incorporated Drilling tool equipped with improved cutting element layout to reduce cutter damage through formation changes, methods of design and operation thereof
GB0521693D0 (en) * 2005-10-25 2005-11-30 Reedhycalog Uk Ltd Representation of whirl in fixed cutter drill bits
RU2008122703A (ru) * 2005-11-08 2009-12-20 Бейкер Хьюз Инкорпорейтед (Us) Долото лопастного типа для роторного бурения и способы оптимизации их эффективности и износостойкости
US8130117B2 (en) 2006-03-23 2012-03-06 Schlumberger Technology Corporation Drill bit with an electrically isolated transmitter
US8297378B2 (en) 2005-11-21 2012-10-30 Schlumberger Technology Corporation Turbine driven hammer that oscillates at a constant frequency
US8316964B2 (en) 2006-03-23 2012-11-27 Schlumberger Technology Corporation Drill bit transducer device
US8528664B2 (en) 2005-11-21 2013-09-10 Schlumberger Technology Corporation Downhole mechanism
US8297375B2 (en) 2005-11-21 2012-10-30 Schlumberger Technology Corporation Downhole turbine
US8267196B2 (en) 2005-11-21 2012-09-18 Schlumberger Technology Corporation Flow guide actuation
US8225883B2 (en) 2005-11-21 2012-07-24 Schlumberger Technology Corporation Downhole percussive tool with alternating pressure differentials
US8522897B2 (en) 2005-11-21 2013-09-03 Schlumberger Technology Corporation Lead the bit rotary steerable tool
US8360174B2 (en) 2006-03-23 2013-01-29 Schlumberger Technology Corporation Lead the bit rotary steerable tool
US7571780B2 (en) 2006-03-24 2009-08-11 Hall David R Jack element for a drill bit
US8141665B2 (en) 2005-12-14 2012-03-27 Baker Hughes Incorporated Drill bits with bearing elements for reducing exposure of cutters
US8011457B2 (en) 2006-03-23 2011-09-06 Schlumberger Technology Corporation Downhole hammer assembly
US8066087B2 (en) * 2006-05-09 2011-11-29 Smith International, Inc. Thermally stable ultra-hard material compact constructions
US7621351B2 (en) 2006-05-15 2009-11-24 Baker Hughes Incorporated Reaming tool suitable for running on casing or liner
US7896106B2 (en) * 2006-12-07 2011-03-01 Baker Hughes Incorporated Rotary drag bits having a pilot cutter configuraton and method to pre-fracture subterranean formations therewith
US7814998B2 (en) * 2006-12-18 2010-10-19 Baker Hughes Incorporated Superabrasive cutting elements with enhanced durability and increased wear life, and drilling apparatus so equipped
RU2009131831A (ru) * 2007-01-25 2011-02-27 Бейкер Хьюз Инкорпорейтед (Us) Лопастное долото для роторного бурения
US8002859B2 (en) 2007-02-06 2011-08-23 Smith International, Inc. Manufacture of thermally stable cutting elements
US7942219B2 (en) 2007-03-21 2011-05-17 Smith International, Inc. Polycrystalline diamond constructions having improved thermal stability
US7866416B2 (en) 2007-06-04 2011-01-11 Schlumberger Technology Corporation Clutch for a jack element
US7814997B2 (en) 2007-06-14 2010-10-19 Baker Hughes Incorporated Interchangeable bearing blocks for drill bits, and drill bits including same
US7721826B2 (en) 2007-09-06 2010-05-25 Schlumberger Technology Corporation Downhole jack assembly sensor
US7967083B2 (en) 2007-09-06 2011-06-28 Schlumberger Technology Corporation Sensor for determining a position of a jack element
US8245797B2 (en) 2007-10-02 2012-08-21 Baker Hughes Incorporated Cutting structures for casing component drillout and earth-boring drill bits including same
US7954571B2 (en) 2007-10-02 2011-06-07 Baker Hughes Incorporated Cutting structures for casing component drillout and earth-boring drill bits including same
WO2009058808A1 (en) * 2007-10-29 2009-05-07 Baker Hughes Incorporated Drill bits and tools for subterranean drilling
US7730976B2 (en) 2007-10-31 2010-06-08 Baker Hughes Incorporated Impregnated rotary drag bit and related methods
US20090138242A1 (en) * 2007-11-27 2009-05-28 Schlumberger Technology Corporation Minimizing stick-slip while drilling
US9297211B2 (en) 2007-12-17 2016-03-29 Smith International, Inc. Polycrystalline diamond construction with controlled gradient metal content
PL2297424T3 (pl) * 2008-04-23 2015-06-30 Baker Hughes Inc Sposoby, układy i dolne zestawy przewodu wiertniczego, w tym rozszerzak o zmiennym skutecznym tylnym kącie natarcia
WO2010009430A2 (en) * 2008-07-17 2010-01-21 Smith International, Inc. Methods of forming thermally stable polycrystalline diamond cutters
CN102099541B (zh) * 2008-07-17 2015-06-17 史密斯运输股份有限公司 一种用于形成切割元件的方法及切割元件
US20100108401A1 (en) 2008-11-06 2010-05-06 National Oilwell Varco, L.P. Resilient Bit Systems and Methods
GB0900606D0 (en) 2009-01-15 2009-02-25 Downhole Products Plc Tubing shoe
US8584776B2 (en) * 2009-01-30 2013-11-19 Baker Hughes Incorporated Methods, systems, and tool assemblies for distributing weight between an earth-boring rotary drill bit and a reamer device
US8943663B2 (en) 2009-04-15 2015-02-03 Baker Hughes Incorporated Methods of forming and repairing cutting element pockets in earth-boring tools with depth-of-cut control features, and tools and structures formed by such methods
US8079430B2 (en) * 2009-04-22 2011-12-20 Baker Hughes Incorporated Drill bits and tools for subterranean drilling, methods of manufacturing such drill bits and tools and methods of off-center drilling
BRPI1014619A2 (pt) * 2009-04-30 2016-04-05 Baker Hughes Inc blocos de suporte para brocas de perfuração, montagens de broca de perfuração incluindo blocos de suporte e métodos relacionados
GB2480219B (en) 2009-05-06 2014-02-12 Smith International Cutting elements with re-processed thermally stable polycrystalline diamond cutting layers,bits incorporating the same,and methods of making the same
WO2010129813A2 (en) 2009-05-06 2010-11-11 Smith International, Inc. Methods of making and attaching tsp material for forming cutting elements, cutting elements having such tsp material and bits incorporating such cutting elements
US8517123B2 (en) * 2009-05-29 2013-08-27 Varel International, Ind., L.P. Milling cap for a polycrystalline diamond compact cutter
US8327944B2 (en) * 2009-05-29 2012-12-11 Varel International, Ind., L.P. Whipstock attachment to a fixed cutter drilling or milling bit
US20110209922A1 (en) * 2009-06-05 2011-09-01 Varel International Casing end tool
RU2544946C2 (ru) * 2009-06-05 2015-03-20 Варел Интернейшнл, Инд., Л.П. Долото обсадной колонны и расширительное долото обсадной колонны
GB2483590B8 (en) 2009-06-18 2014-07-23 Smith International Polycrystalline diamond cutting elements with engineered porosity and method for manufacturing such cutting elements
WO2011044147A2 (en) 2009-10-05 2011-04-14 Baker Hughes Incorporated Drill bits and tools for subterranean drilling, methods of manufacturing such drill bits and tools and methods of directional and off center drilling
CA2785960C (en) * 2010-01-05 2017-06-27 Halliburton Energy Services, Inc. Reamer and bit interaction model system and method
CA2817695C (en) 2010-11-10 2016-02-02 Halliburton Energy Services, Inc. System and method of constant depth of cut control of drilling tools
US8741010B2 (en) 2011-04-28 2014-06-03 Robert Frushour Method for making low stress PDC
US8858665B2 (en) 2011-04-28 2014-10-14 Robert Frushour Method for making fine diamond PDC
US8974559B2 (en) 2011-05-12 2015-03-10 Robert Frushour PDC made with low melting point catalyst
US8828110B2 (en) 2011-05-20 2014-09-09 Robert Frushour ADNR composite
US9061264B2 (en) 2011-05-19 2015-06-23 Robert H. Frushour High abrasion low stress PDC
US9097065B2 (en) 2011-09-30 2015-08-04 Baker Hughes Incorporated Drill bit design for mitigation of stick slip
RU2498038C1 (ru) * 2012-04-10 2013-11-10 Открытое акционерное общество "Волгабурмаш" (ОАО "Волгабурмаш") Способ балансировки нагрузок в долоте с поликристаллическим алмазным вооружением
US9464490B2 (en) 2012-05-03 2016-10-11 Smith International, Inc. Gage cutter protection for drilling bits
CN109779532A (zh) 2012-05-30 2019-05-21 哈里伯顿能源服务公司 旋转钻头和设计用于定向和水平钻探的旋转钻头的方法
CA2879046A1 (en) 2012-07-13 2014-01-16 Halliburton Energy Services, Inc. Rotary drill bits with back-up cutting elements to optimize bit life
GB2536537A (en) * 2013-09-03 2016-09-21 Halliburton Energy Services Inc Drilling tool including multi-step depth of cut control
CA2929078C (en) 2013-12-06 2018-07-17 Halliburton Energy Services, Inc. Rotary drill bit including multi-layer cutting elements
US9828810B2 (en) 2014-02-07 2017-11-28 Varel International Ind., L.P. Mill-drill cutter and drill bit
CN106460461B (zh) 2014-06-17 2019-01-18 哈利伯顿能源服务公司 用于防止切削元件的衬底接触地层的方法和钻头设计
BR112016024402A2 (pt) 2014-06-18 2017-08-15 Halliburton Energy Services Inc broca e método de perfuração
CN104358522A (zh) * 2014-11-06 2015-02-18 中国石油化工股份有限公司 适应于页岩气井页岩地层钻进的pdc钻头
WO2016153499A1 (en) * 2015-03-25 2016-09-29 Halliburton Energy Services, Inc. Adjustable depth of cut control for a downhole drilling tool
US11016466B2 (en) 2015-05-11 2021-05-25 Schlumberger Technology Corporation Method of designing and optimizing fixed cutter drill bits using dynamic cutter velocity, displacement, forces and work
US10107040B2 (en) 2015-09-23 2018-10-23 Baker Hughes, A Ge Company, Llc Earth-boring tool having back up cutting elements with flat surfaces formed therein and related methods
RU2628363C2 (ru) * 2015-10-07 2017-08-16 Акционерное общество "Волгабурмаш" (АО "Волгабурмаш") Способ балансировки нагрузок в долоте с поликристаллическим алмазным вооружением
CN106014264B (zh) * 2016-06-06 2017-10-10 廊坊市鼎鑫联拓工贸有限公司 缩短型pdc钻头及其装卸器
GB2564811A (en) 2016-06-17 2019-01-23 Halliburton Energy Services Inc Rolling element with half lock
CN109642452A (zh) 2016-10-05 2019-04-16 哈利伯顿能源服务公司 具有顺应性保持器的滚动元件组件
US10458189B2 (en) 2017-01-27 2019-10-29 Baker Hughes, A Ge Company, Llc Earth-boring tools utilizing selective placement of polished and non-polished cutting elements, and related methods
CA3051594A1 (en) 2017-02-02 2018-08-09 National Oilwell DHT, L.P. Drill bit inserts and drill bits including same
CN106869802B (zh) * 2017-04-27 2023-10-27 西南石油大学 一种复合破岩机构和一种长寿命复合钻头
US10697248B2 (en) 2017-10-04 2020-06-30 Baker Hughes, A Ge Company, Llc Earth-boring tools and related methods
US20190277131A1 (en) * 2018-03-07 2019-09-12 Baker Hughes, A Ge Company Llc Earth-boring tool monitoring system for showing reliability of an earth-boring tool and related methods
US10954721B2 (en) 2018-06-11 2021-03-23 Baker Hughes Holdings Llc Earth-boring tools and related methods
US11542755B2 (en) 2018-09-14 2023-01-03 Baker Hughes Oilfield Operations Llc Earth boring tools having protrusions trailing cutting elements and related methods
CA3068456A1 (en) * 2019-01-18 2020-07-18 9187-8926 Quebec Inc. Grinding wheel
US12031383B2 (en) * 2019-03-07 2024-07-09 Halliburton Energy Services, Inc. Shaped cutter arrangements
PE20231259A1 (es) * 2020-12-29 2023-08-22 Longyear Tm Inc Barrena de perforacion con cara reforzada
US11732531B2 (en) 2021-06-04 2023-08-22 Baker Hughes Oilfield Operations Llc Modular earth boring tools having fixed blades and removable blade assemblies and related methods
CN113802995B (zh) * 2021-09-14 2022-02-08 东营光年石油科技有限公司 一种定向钻井的pdc钻头
CN116988739B (zh) * 2023-09-26 2023-12-26 西南石油大学 一种高密度纵向布齿pdc钻头
CN117759167B (zh) * 2024-02-21 2024-04-30 陕西炬烽建筑劳务有限公司 一种建筑基坑施工的钻孔装置

Family Cites Families (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2563515A (en) 1951-08-07 Drill stem telescope joint
US1805678A (en) 1926-09-27 1931-05-19 Eggleston Drilling Corp Self-seating device for drilling bits
US2198849A (en) 1938-06-09 1940-04-30 Reuben L Waxler Drill
US2624549A (en) 1947-03-24 1953-01-06 Oakie G Wallace Method and means of rotary drilling
US2684835A (en) 1950-07-26 1954-07-27 Standard Oil Dev Co Apparatus for drilling well boreholes
US2776817A (en) 1952-07-21 1957-01-08 Shell Dev Drilling apparatus
US3153458A (en) 1962-10-08 1964-10-20 Drilling & Service Inc Blade-type drill bit
US3303894A (en) 1964-03-27 1967-02-14 Justin A Varney Means and method for controlling thrust or weight on drilling tool
US3709308A (en) 1970-12-02 1973-01-09 Christensen Diamond Prod Co Diamond drill bits
US3779323A (en) 1972-04-27 1973-12-18 Ingersoll Rand Co Earth cutter mounting means
US3938599A (en) * 1974-03-27 1976-02-17 Hycalog, Inc. Rotary drill bit
US4351401A (en) 1978-06-08 1982-09-28 Christensen, Inc. Earth-boring drill bits
US4386669A (en) 1980-12-08 1983-06-07 Evans Robert F Drill bit with yielding support and force applying structure for abrasion cutting elements
US4499958A (en) 1983-04-29 1985-02-19 Strata Bit Corporation Drag blade bit with diamond cutting elements
US4554986A (en) 1983-07-05 1985-11-26 Reed Rock Bit Company Rotary drill bit having drag cutting elements
US4991670A (en) 1984-07-19 1991-02-12 Reed Tool Company, Ltd. Rotary drill bit for use in drilling holes in subsurface earth formations
GB8418481D0 (en) * 1984-07-19 1984-08-22 Nl Petroleum Prod Rotary drill bits
US4889017A (en) 1984-07-19 1989-12-26 Reed Tool Co., Ltd. Rotary drill bit for use in drilling holes in subsurface earth formations
US4763737A (en) 1986-08-11 1988-08-16 Dieter Hellnick Downhole cutter
US4981184A (en) 1988-11-21 1991-01-01 Smith International, Inc. Diamond drag bit for soft formations
CA1333282C (en) 1989-02-21 1994-11-29 J. Ford Brett Imbalance compensated drill bit
US5042596A (en) 1989-02-21 1991-08-27 Amoco Corporation Imbalance compensated drill bit
US5010789A (en) 1989-02-21 1991-04-30 Amoco Corporation Method of making imbalanced compensated drill bit
US4982802A (en) 1989-11-22 1991-01-08 Amoco Corporation Method for stabilizing a rotary drill string and drill bit
US5111892A (en) 1990-10-03 1992-05-12 Sinor L Allen Imbalance compensated drill bit with hydrostatic bearing
US5090492A (en) 1991-02-12 1992-02-25 Dresser Industries, Inc. Drill bit with vibration stabilizers
FI91552C (fi) * 1991-03-25 1994-07-11 Valto Ilomaeki Poraava laite ja sen etenemisen säätömenetelmä
US5199511A (en) * 1991-09-16 1993-04-06 Baker-Hughes, Incorporated Drill bit and method for reducing formation fluid invasion and for improved drilling in plastic formations
US5244039A (en) * 1991-10-31 1993-09-14 Camco Drilling Group Ltd. Rotary drill bits
US5265685A (en) * 1991-12-30 1993-11-30 Dresser Industries, Inc. Drill bit with improved insert cutter pattern
US5314033A (en) * 1992-02-18 1994-05-24 Baker Hughes Incorporated Drill bit having combined positive and negative or neutral rake cutters
US5303785A (en) * 1992-08-25 1994-04-19 Smith International, Inc. Diamond back-up for PDC cutters
US5558170A (en) * 1992-12-23 1996-09-24 Baroid Technology, Inc. Method and apparatus for improving drill bit stability
GB2273946B (en) * 1992-12-31 1996-10-09 Camco Drilling Group Ltd Improvements in or relating to rotary drill bits
US5447208A (en) 1993-11-22 1995-09-05 Baker Hughes Incorporated Superhard cutting element having reduced surface roughness and method of modifying
US5402856A (en) * 1993-12-21 1995-04-04 Amoco Corporation Anti-whirl underreamer
US5595252A (en) * 1994-07-28 1997-01-21 Flowdril Corporation Fixed-cutter drill bit assembly and method
FR2734315B1 (fr) 1995-05-15 1997-07-04 Inst Francais Du Petrole Methode de determination des conditions de forage comportant un modele de foration
GB9708428D0 (en) * 1997-04-26 1997-06-18 Camco Int Uk Ltd Improvements in or relating to rotary drill bits
GB9712342D0 (en) * 1997-06-14 1997-08-13 Camco Int Uk Ltd Improvements in or relating to rotary drill bits
US6230828B1 (en) * 1997-09-08 2001-05-15 Baker Hughes Incorporated Rotary drilling bits for directional drilling exhibiting variable weight-on-bit dependent cutting characteristics

Also Published As

Publication number Publication date
GB2353548B (en) 2004-03-17
ITTO20000816A1 (it) 2002-02-25
GB0020134D0 (en) 2000-10-04
GB2353548A (en) 2001-02-28
BE1013652A3 (fr) 2002-05-07
US6298930B1 (en) 2001-10-09
IT1320602B1 (it) 2003-12-10

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