IT1303588B1 - Punta per la perforazione del terreno con un gruppo di tenuta di tipoperfezionato di un cuscinetto. - Google Patents
Punta per la perforazione del terreno con un gruppo di tenuta di tipoperfezionato di un cuscinetto.Info
- Publication number
- IT1303588B1 IT1303588B1 IT1998TO001053A ITTO981053A IT1303588B1 IT 1303588 B1 IT1303588 B1 IT 1303588B1 IT 1998TO001053 A IT1998TO001053 A IT 1998TO001053A IT TO981053 A ITTO981053 A IT TO981053A IT 1303588 B1 IT1303588 B1 IT 1303588B1
- Authority
- IT
- Italy
- Prior art keywords
- drill
- drilling
- land
- bearing
- type
- Prior art date
Links
- 238000007789 sealing Methods 0.000 title 1
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
- E21B10/08—Roller bits
- E21B10/22—Roller bits characterised by bearing, lubrication or sealing details
- E21B10/25—Roller bits characterised by bearing, lubrication or sealing details characterised by sealing details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
- F16J15/3436—Pressing means
- F16J15/344—Pressing means the pressing force being applied by means of an elastic ring supporting the slip-ring
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
- Sealing Devices (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/993,943 US6026917A (en) | 1997-12-18 | 1997-12-18 | Earth-boring bit with improved bearing seal |
Publications (3)
Publication Number | Publication Date |
---|---|
ITTO981053A0 ITTO981053A0 (it) | 1998-12-18 |
ITTO981053A1 ITTO981053A1 (it) | 2000-06-18 |
IT1303588B1 true IT1303588B1 (it) | 2000-11-14 |
Family
ID=25540111
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT1998TO001053A IT1303588B1 (it) | 1997-12-18 | 1998-12-18 | Punta per la perforazione del terreno con un gruppo di tenuta di tipoperfezionato di un cuscinetto. |
Country Status (4)
Country | Link |
---|---|
US (2) | US6026917A (it) |
BE (1) | BE1013076A5 (it) |
GB (1) | GB2332461B (it) |
IT (1) | IT1303588B1 (it) |
Families Citing this family (35)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6196339B1 (en) * | 1995-12-19 | 2001-03-06 | Smith International, Inc. | Dual-seal drill bit pressure communication system |
SE516079C2 (sv) * | 1998-12-18 | 2001-11-12 | Sandvik Ab | Rullborrkrona |
US6336512B1 (en) * | 1999-02-02 | 2002-01-08 | Smith International, Inc. | Drill bit having canted seal |
US6533051B1 (en) * | 1999-09-07 | 2003-03-18 | Smith International, Inc. | Roller cone drill bit shale diverter |
US6536542B1 (en) * | 1999-10-28 | 2003-03-25 | Smith International, Inc. | Rock bit seal with multiple dynamic seal surface elements |
US6513607B2 (en) * | 2001-02-15 | 2003-02-04 | Baker Hughes Incorporated | Metal-face-seal rock bit |
US7044242B2 (en) * | 2001-04-26 | 2006-05-16 | Halliburton Energy Services, Inc. | Roller cone bits with reduced packing |
US6626575B2 (en) | 2001-06-07 | 2003-09-30 | Roller Bearing Company Of America | Spherical plain bearing with spread lock dual sealing means |
US6820704B2 (en) | 2001-08-08 | 2004-11-23 | Smith International, Inc. | Rock bit seal with extrusion prevention member |
US6684966B2 (en) | 2001-10-18 | 2004-02-03 | Baker Hughes Incorporated | PCD face seal for earth-boring bit |
US7086487B2 (en) | 2002-07-01 | 2006-08-08 | Baker Hughes Incorporated | Anti-mud packing seal gland |
US7229077B2 (en) * | 2003-06-11 | 2007-06-12 | Smith International, Inc. | Ordered elastomeric composite material |
US7117961B2 (en) | 2003-07-31 | 2006-10-10 | Smith International, Inc. | Dynamic seal with soft interface |
US7036613B2 (en) | 2003-09-12 | 2006-05-02 | Reedhycalog, L.P. | Lip seal for roller cone drill bit |
US7066286B2 (en) * | 2004-03-25 | 2006-06-27 | Baker Hughes Incorporated | Gage surface scraper |
US7347290B2 (en) * | 2004-06-15 | 2008-03-25 | Smith International, Inc. | Multi-part energizer for mechanical seal assembly |
US7188691B2 (en) * | 2004-06-15 | 2007-03-13 | Smith International, Inc. | Metal seal with impact-absorbing ring |
EP1781890B1 (en) * | 2004-07-09 | 2010-06-02 | Baker Hughes Incorporated | Drilling tool with elastomer seal having graded properties |
US7461708B2 (en) * | 2004-08-16 | 2008-12-09 | Smith International, Inc. | Elastomeric seal assembly having auxiliary annular seal components |
US7413037B2 (en) * | 2004-09-17 | 2008-08-19 | Baker Hughes Incorporated | Metal face seal for an earth-boring bit |
US20060065445A1 (en) * | 2004-09-28 | 2006-03-30 | Smith International, Inc. | Rock-bit seals with asymmetric contact profiles |
US7241049B2 (en) * | 2004-12-03 | 2007-07-10 | Baker Hughes Incorporated | Micropore engagement surfaces for earth boring bit |
US7472764B2 (en) * | 2005-03-25 | 2009-01-06 | Baker Hughes Incorporated | Rotary drill bit shank, rotary drill bits so equipped, and methods of manufacture |
US7389832B2 (en) * | 2006-05-26 | 2008-06-24 | Dyna-Drill Technologies, Inc. | Hydrostatic mechanical seal with local pressurization of seal interface |
US7992657B2 (en) * | 2006-08-18 | 2011-08-09 | Atlas Copco Secoroc Llc | Earth bit having a wear ring |
US8020638B2 (en) * | 2006-10-30 | 2011-09-20 | Smith International, Inc. | Seal with dynamic sealing surface at the outside diameter |
CN101182756B (zh) * | 2007-12-17 | 2011-05-11 | 江汉石油钻头股份有限公司 | 一种牙轮钻头轴承密封结构 |
US8967301B2 (en) | 2010-02-03 | 2015-03-03 | Baker Hughes Incorporated | Composite metallic elastomeric sealing components for roller cone drill bits |
CN102287139A (zh) * | 2010-06-18 | 2011-12-21 | 北京石油化工学院 | 牙轮钻头金属浮动密封装置 |
CN102392604A (zh) * | 2011-09-15 | 2012-03-28 | 江汉石油钻头股份有限公司 | 一种轴承金属密封结构 |
US20140225328A1 (en) * | 2013-02-08 | 2014-08-14 | Baker Hughes Incorporated | Enhanced Backup Ring Edge Features for Metal Face Seal in Roller Cone Drill Bits |
US9163458B2 (en) | 2013-02-13 | 2015-10-20 | Varel International, Ind., L.P. | Rock bit having a flexible metal faced seal |
US9163459B2 (en) | 2013-02-13 | 2015-10-20 | Varel International, Ind., L.P. | Rock bit having a pressure balanced metal faced seal |
US9091130B2 (en) | 2013-02-13 | 2015-07-28 | Varel International, Ind., L.P. | Rock bit having a radially self-aligning metal faced seal |
US11131148B2 (en) | 2019-06-27 | 2021-09-28 | Baker Hughes Oilfield Operations Llc | Seal assembly for use in earth-boring rotary tools in subterranean boreholes and related methods |
Family Cites Families (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1641261A (en) * | 1927-09-06 | Harold wkslock fletcher | ||
US1908049A (en) * | 1929-04-04 | 1933-05-09 | Chicago Pneumatic Tool Co | Rotary boring drill for deep wells |
US2041567A (en) * | 1934-08-27 | 1936-05-19 | Nelson Emil | Engine piston |
US2107788A (en) * | 1937-01-09 | 1938-02-08 | Jesse E Hall | Deballing drill bit |
US3762485A (en) * | 1972-09-05 | 1973-10-02 | Milchem Inc | Process for the prevention of balling |
US4174848A (en) * | 1978-03-01 | 1979-11-20 | Dresser Industries, Inc. | Latching mechanism for reciprocating impact tools |
US4176848A (en) * | 1978-06-30 | 1979-12-04 | Dresser Industries, Inc. | Rotary bearing seal for drill bits |
US4256351A (en) * | 1978-11-24 | 1981-03-17 | Dresser Industries, Inc. | Sealing system for a rolling cone cutter earth boring bit |
US4277109A (en) * | 1979-09-12 | 1981-07-07 | Dresser Industries, Inc. | Axial compression positive rock bit seal |
US4848476A (en) * | 1980-03-24 | 1989-07-18 | Reed Tool Company | Drill bit having offset roller cutters and improved nozzles |
US4741406A (en) * | 1980-03-24 | 1988-05-03 | Reed Tool Company | Drill bit having offset roller cutters and improved nozzles |
US4428687A (en) * | 1981-05-11 | 1984-01-31 | Hughes Tool Company | Floating seal for earth boring bit |
US4516641A (en) * | 1983-10-17 | 1985-05-14 | Hughes Tool Company-Usa | Earth boring bit with pressure compensating rigid face seal |
US4753045A (en) | 1985-10-01 | 1988-06-28 | General Motors Corporation | Adjustable double end grinding machine |
US4629338A (en) * | 1986-03-31 | 1986-12-16 | Dresser Industries, Inc. | Seal and bearing apparatus for bits |
JPH0742837B2 (ja) * | 1986-06-13 | 1995-05-10 | 塚本精機株式会社 | ドリルビツトのカツタ−用回転軸封装置 |
US4727942A (en) | 1986-11-05 | 1988-03-01 | Hughes Tool Company | Compensator for earth boring bits |
US5009519A (en) * | 1987-05-28 | 1991-04-23 | Tatum David M | Sealing assembly for relatively movable members |
US4762189A (en) * | 1987-05-28 | 1988-08-09 | Tatum David M | Seal and seal shield assembly for rotary drill bits |
US4784231A (en) * | 1987-08-07 | 1988-11-15 | Dresser Industries, Inc. | Extended drill bit nozzle having side discharge ports |
SE8801233L (sv) * | 1988-04-05 | 1989-10-06 | Sandvik Ab | Rullborrkrona |
US4838365A (en) * | 1988-04-25 | 1989-06-13 | Reed Tool Company | Seal assembly for rotary drill bits |
US4813502A (en) * | 1988-06-28 | 1989-03-21 | Dresser Industries, Inc. | Drilling bit with improved trailing edge vent |
US5027911A (en) * | 1989-11-02 | 1991-07-02 | Dresser Industries, Inc. | Double seal with lubricant gap between seals for sealed rotary drill bits |
US5096005A (en) * | 1990-03-30 | 1992-03-17 | Camco International Inc. | Hydraulic action for rotary drill bits |
US5080183A (en) * | 1990-08-13 | 1992-01-14 | Camco International Inc. | Seal assembly for roller cutter drill bit having a pressure balanced lubrication system |
US5360076A (en) * | 1992-04-03 | 1994-11-01 | Hughes Tool Company | Dual metal face seal with single recessed energizer |
US5295549A (en) * | 1992-12-14 | 1994-03-22 | Baker Hughes Incorporated | Mechanical lock to prevent seal ring rotation |
US5472058A (en) * | 1994-04-20 | 1995-12-05 | Smith International, Inc. | Rock bit with mechanical seal |
US6254275B1 (en) * | 1995-12-19 | 2001-07-03 | Smith International, Inc. | Sealed bearing drill bit with dual-seal configuration and fluid-cleaning capability |
US5875861A (en) * | 1996-07-24 | 1999-03-02 | Camco International Inc. | Different stiffness energizers for MF seals |
-
1997
- 1997-12-18 US US08/993,943 patent/US6026917A/en not_active Expired - Lifetime
-
1998
- 1998-12-17 GB GB9827666A patent/GB2332461B/en not_active Expired - Fee Related
- 1998-12-17 BE BE9800906A patent/BE1013076A5/fr not_active IP Right Cessation
- 1998-12-18 IT IT1998TO001053A patent/IT1303588B1/it active IP Right Grant
-
1999
- 1999-12-23 US US09/471,218 patent/US6142249A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
GB2332461A9 (en) | |
BE1013076A5 (fr) | 2001-09-04 |
US6026917A (en) | 2000-02-22 |
ITTO981053A0 (it) | 1998-12-18 |
GB9827666D0 (en) | 1999-02-10 |
US6142249A (en) | 2000-11-07 |
ITTO981053A1 (it) | 2000-06-18 |
GB2332461B (en) | 2002-10-30 |
GB2332461A (en) | 1999-06-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
0001 | Granted |