EP2721242A2 - Two-centre rotary boring bit and method for deepening an existing well - Google Patents
Two-centre rotary boring bit and method for deepening an existing wellInfo
- Publication number
- EP2721242A2 EP2721242A2 EP12732786.4A EP12732786A EP2721242A2 EP 2721242 A2 EP2721242 A2 EP 2721242A2 EP 12732786 A EP12732786 A EP 12732786A EP 2721242 A2 EP2721242 A2 EP 2721242A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- tool
- pilot
- blades
- pilot tool
- bit
- 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
- 238000000034 method Methods 0.000 title claims description 8
- 238000004891 communication Methods 0.000 claims abstract description 4
- 238000005553 drilling Methods 0.000 claims description 31
- 230000002093 peripheral effect Effects 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000008188 pellet Substances 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 238000005299 abrasion Methods 0.000 claims description 3
- 239000003245 coal Substances 0.000 claims description 3
- -1 ores Substances 0.000 claims description 2
- 241000425571 Trepanes Species 0.000 claims 1
- 229910003460 diamond Inorganic materials 0.000 description 6
- 239000010432 diamond Substances 0.000 description 6
- 239000011435 rock Substances 0.000 description 6
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 4
- 244000000626 Daucus carota Species 0.000 description 3
- 235000002767 Daucus carota Nutrition 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 229910017566 Cu-Mn Inorganic materials 0.000 description 1
- 229910017871 Cu—Mn Inorganic materials 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- E21B10/265—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)
- Sampling And Sample Adjustment (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE2011/0371A BE1020012A3 (en) | 2011-06-16 | 2011-06-16 | BI-CENTER ROTARY TREPAN AND METHOD FOR EXTENDING PREEXISTANT WELL. |
PCT/EP2012/002510 WO2012171643A2 (en) | 2011-06-16 | 2012-06-14 | Two-centre rotary boring bit and method for deepening an existing well |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2721242A2 true EP2721242A2 (en) | 2014-04-23 |
EP2721242B1 EP2721242B1 (en) | 2016-01-20 |
Family
ID=45478608
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12732786.4A Active EP2721242B1 (en) | 2011-06-16 | 2012-06-14 | Two-centre rotary boring bit and method for deepening an existing well |
Country Status (4)
Country | Link |
---|---|
US (1) | US20140131111A1 (en) |
EP (1) | EP2721242B1 (en) |
BE (1) | BE1020012A3 (en) |
WO (1) | WO2012171643A2 (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
CA2850795C (en) * | 2011-10-03 | 2016-08-16 | Gilbert T. Meier | Wellbore conditioning system |
CN104850671B (en) * | 2014-02-18 | 2017-03-15 | 中国石油化工股份有限公司 | The grid cutting algorithm in rock core complexity duct |
US10024105B2 (en) * | 2015-02-25 | 2018-07-17 | Radius Hdd Direct, Llc | Rock bit |
US10492107B2 (en) | 2016-11-03 | 2019-11-26 | Ofinno, Llc | SPS configuration during handover |
USD863919S1 (en) | 2017-09-08 | 2019-10-22 | XR Lateral, LLC | Directional drilling assembly |
USD877780S1 (en) * | 2017-09-08 | 2020-03-10 | XR Lateral, LLC | Directional drilling assembly |
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 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2296272B (en) * | 1994-12-20 | 1998-03-18 | Smith International | Self-centering polycrystalline diamond drill bit |
US5678644A (en) | 1995-08-15 | 1997-10-21 | Diamond Products International, Inc. | Bi-center and bit method for enhancing stability |
US6039131A (en) * | 1997-08-25 | 2000-03-21 | Smith International, Inc. | Directional drift and drill PDC drill bit |
US6394202B2 (en) | 1999-06-30 | 2002-05-28 | Smith International, Inc. | Drill bit having diamond impregnated inserts primary cutting structure |
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 |
US6394200B1 (en) * | 1999-10-28 | 2002-05-28 | Camco International (U.K.) Limited | Drillout bi-center bit |
FR2915232B1 (en) * | 2007-04-23 | 2009-06-05 | Total Sa | TREPAN FOR DRILLING A WELL AND METHOD FOR DRESSING THE SAME. |
-
2011
- 2011-06-16 BE BE2011/0371A patent/BE1020012A3/en not_active IP Right Cessation
-
2012
- 2012-06-14 US US14/125,413 patent/US20140131111A1/en not_active Abandoned
- 2012-06-14 EP EP12732786.4A patent/EP2721242B1/en active Active
- 2012-06-14 WO PCT/EP2012/002510 patent/WO2012171643A2/en active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of WO2012171643A2 * |
Also Published As
Publication number | Publication date |
---|---|
EP2721242B1 (en) | 2016-01-20 |
US20140131111A1 (en) | 2014-05-15 |
BE1020012A3 (en) | 2013-03-05 |
WO2012171643A3 (en) | 2013-07-18 |
WO2012171643A2 (en) | 2012-12-20 |
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