EP1039095A3 - Downhole drill bit - Google Patents
Downhole drill bit Download PDFInfo
- Publication number
- EP1039095A3 EP1039095A3 EP00302231A EP00302231A EP1039095A3 EP 1039095 A3 EP1039095 A3 EP 1039095A3 EP 00302231 A EP00302231 A EP 00302231A EP 00302231 A EP00302231 A EP 00302231A EP 1039095 A3 EP1039095 A3 EP 1039095A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- reamer
- pilot
- drill bit
- section
- downhole drill
- 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
Links
- 230000000087 stabilizing effect Effects 0.000 abstract 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
- E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
- E21B10/265—Bi-center drill bits, i.e. an integral bit and eccentric reamer used to simultaneously drill and underream the hole
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
- Drilling Tools (AREA)
Abstract
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12511999P | 1999-03-19 | 1999-03-19 | |
US125119 | 1999-03-19 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1039095A2 EP1039095A2 (en) | 2000-09-27 |
EP1039095A3 true EP1039095A3 (en) | 2001-04-11 |
EP1039095B1 EP1039095B1 (en) | 2005-05-18 |
Family
ID=22418279
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00302231A Expired - Lifetime EP1039095B1 (en) | 1999-03-19 | 2000-03-20 | Downhole drill bit |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1039095B1 (en) |
DE (1) | DE60020185T2 (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2376489B (en) * | 1999-06-30 | 2003-05-28 | Smith International | Bi-centre drill bit |
US6659207B2 (en) | 1999-06-30 | 2003-12-09 | Smith International, Inc. | Bi-centered drill bit having enhanced casing drill-out capability and improved directional stability |
US6269893B1 (en) | 1999-06-30 | 2001-08-07 | Smith International, Inc. | Bi-centered drill bit having improved drilling stability mud hydraulics and resistance to cutter damage |
US6394200B1 (en) | 1999-10-28 | 2002-05-28 | Camco International (U.K.) Limited | Drillout bi-center bit |
GB0820063D0 (en) | 2008-11-03 | 2008-12-10 | Reedhycalog Uk Ltd | Drilling tool |
US8327957B2 (en) * | 2010-06-24 | 2012-12-11 | Baker Hughes Incorporated | Downhole cutting tool having center beveled mill blade |
US8851205B1 (en) | 2011-04-08 | 2014-10-07 | Hard Rock Solutions, Llc | Method and apparatus for reaming well bore surfaces nearer the center of drift |
US9739094B2 (en) * | 2013-09-06 | 2017-08-22 | Baker Hughes Incorporated | Reamer blades exhibiting at least one of enhanced gage cutting element backrakes and exposures and reamers so equipped |
CA3075388A1 (en) | 2017-09-09 | 2019-03-14 | Extreme Technologies, Llc | Well bore conditioner and stabilizer |
WO2019075076A1 (en) | 2017-10-10 | 2019-04-18 | Extreme Technologies, Llc | Wellbore reaming systems and devices |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1249499A (en) * | 1959-11-19 | 1960-12-30 | Europ De Turboforage Soc | ground drilling equipment |
EP0058061A2 (en) * | 1981-02-07 | 1982-08-18 | DRILLING & SERVICE U.K. LIMITED | Tools for underground formations |
US5678644A (en) * | 1995-08-15 | 1997-10-21 | Diamond Products International, Inc. | Bi-center and bit method for enhancing stability |
GB2317632A (en) * | 1996-09-25 | 1998-04-01 | Smith International | Drill bit having a serrated cutting structure for plastic shale drilling |
US5765653A (en) * | 1996-10-09 | 1998-06-16 | Baker Hughes Incorporated | Reaming apparatus and method with enhanced stability and transition from pilot hole to enlarged bore diameter |
-
2000
- 2000-03-20 DE DE60020185T patent/DE60020185T2/en not_active Expired - Lifetime
- 2000-03-20 EP EP00302231A patent/EP1039095B1/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1249499A (en) * | 1959-11-19 | 1960-12-30 | Europ De Turboforage Soc | ground drilling equipment |
EP0058061A2 (en) * | 1981-02-07 | 1982-08-18 | DRILLING & SERVICE U.K. LIMITED | Tools for underground formations |
US5678644A (en) * | 1995-08-15 | 1997-10-21 | Diamond Products International, Inc. | Bi-center and bit method for enhancing stability |
GB2317632A (en) * | 1996-09-25 | 1998-04-01 | Smith International | Drill bit having a serrated cutting structure for plastic shale drilling |
US5765653A (en) * | 1996-10-09 | 1998-06-16 | Baker Hughes Incorporated | Reaming apparatus and method with enhanced stability and transition from pilot hole to enlarged bore diameter |
Non-Patent Citations (3)
Title |
---|
"Hughes Christensen's Drill Out RWD tool", INTERNET ARTICLE, XP002154028, Retrieved from the Internet <URL:http://www.bakerhughes.com/hcc/holeopen/dosrwd.htm> [retrieved on 20001128] * |
CSONKA, G. ET AL.: "Ream While Drilling Technology Applied Succesfully Offshore Australia", SPE36990, 28 October 1996 (1996-10-28), Adelaide, pages 271 - 278, XP002153941 * |
ROTHE J R ET AL: "REAM-WHILE-DRILLING TOOL CUTS COSTS OF THREE VENEZUELAN WELLS", OIL AND GAS JOURNAL,US,PENNWELL PUBLISHING CO. TULSA, vol. 95, no. 2, 13 January 1997 (1997-01-13), pages 33 - 34,36,38-40, XP000685109, ISSN: 0030-1388 * |
Also Published As
Publication number | Publication date |
---|---|
DE60020185D1 (en) | 2005-06-23 |
EP1039095A2 (en) | 2000-09-27 |
EP1039095B1 (en) | 2005-05-18 |
DE60020185T2 (en) | 2006-01-12 |
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Legal Events
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|
PUAL | Search report despatched |
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RAP3 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: DIAMOND PRODUCTIONS INTERNATIONAL, INC. |
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