GB2505820A - Method and apparatus for shaping a well hole - Google Patents
Method and apparatus for shaping a well hole Download PDFInfo
- Publication number
- GB2505820A GB2505820A GB1322145.2A GB201322145A GB2505820A GB 2505820 A GB2505820 A GB 2505820A GB 201322145 A GB201322145 A GB 201322145A GB 2505820 A GB2505820 A GB 2505820A
- Authority
- GB
- United Kingdom
- Prior art keywords
- wellbore
- assembly
- sub
- cutting
- shaping
- 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.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title abstract 2
- 238000007493 shaping process Methods 0.000 title abstract 2
- 238000005553 drilling Methods 0.000 abstract 2
- 239000012530 fluid Substances 0.000 abstract 2
- 230000000712 assembly Effects 0.000 abstract 1
- 238000000429 assembly Methods 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
- E21B37/00—Methods or apparatus for cleaning boreholes or wells
-
- 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
- E21B10/60—Drill bits characterised by conduits or nozzles for drilling fluids
-
- 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
- E21B17/1092—Gauge section of drill bits
-
- 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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
- Drilling And Boring (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
A method of shaping a wellbore comprising attaching a drilling apparatus to a drill string, which has a side cutting sub-assembly with both cutting and gauging surfaces; a fluid circulating sub-assembly which has nozzles directing fluid up the wellbore and past the cutting surfaces; and a bullnose assembly with forward pointing nozzles and a bullnosed front end to prevent catching in ledges of a rough drilled wellbore. The drilling apparatus is then passed through the wellbore such that the side cutting sub shears arch wellbore walls of dog legs to ease the turns and smooth the bore wall in preparation for running liner / casing or other down hole assemblies which previously may have had difficulty going in hole.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/US2011/039875 WO2012170030A1 (en) | 2011-06-09 | 2011-06-09 | Method and apparatus for shaping a well hole |
Publications (2)
Publication Number | Publication Date |
---|---|
GB201322145D0 GB201322145D0 (en) | 2014-01-29 |
GB2505820A true GB2505820A (en) | 2014-03-12 |
Family
ID=47296336
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1322145.2A Withdrawn GB2505820A (en) | 2011-06-09 | 2011-06-09 | Method and apparatus for shaping a well hole |
Country Status (4)
Country | Link |
---|---|
US (1) | US20140116782A1 (en) |
CA (1) | CA2838803A1 (en) |
GB (1) | GB2505820A (en) |
WO (1) | WO2012170030A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10024141B2 (en) * | 2016-09-05 | 2018-07-17 | Jason Swinford | Apparatus and method of cleaning an oil well-bore |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20010035302A1 (en) * | 1998-03-13 | 2001-11-01 | Desai Praful C | Method for milling casing and drilling formation |
US20050133268A1 (en) * | 2003-12-17 | 2005-06-23 | Moriarty Keith A. | Method and apparatus for casing and directional drilling using bi-centered bit |
US20060113113A1 (en) * | 2002-02-19 | 2006-06-01 | Smith International, Inc. | Steerable underreamer/stabilizer assembly and method |
US20080115973A1 (en) * | 2004-11-01 | 2008-05-22 | Allen Kent Rives | Underreamer And Method Of Use |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4433738A (en) * | 1981-12-24 | 1984-02-28 | Moreland Ernest W | Method and apparatus for use when changing the direction of a well bore |
US4630694A (en) * | 1985-10-16 | 1986-12-23 | Walton Paul G | Integral blade hole opener |
US7036611B2 (en) * | 2002-07-30 | 2006-05-02 | Baker Hughes Incorporated | Expandable reamer apparatus for enlarging boreholes while drilling and methods of use |
US20090114448A1 (en) * | 2007-11-01 | 2009-05-07 | Smith International, Inc. | Expandable roller reamer |
GB2460096B (en) * | 2008-06-27 | 2010-04-07 | Wajid Rasheed | Expansion and calliper tool |
US8776912B2 (en) * | 2009-05-01 | 2014-07-15 | Smith International, Inc. | Secondary cutting structure |
-
2011
- 2011-06-09 GB GB1322145.2A patent/GB2505820A/en not_active Withdrawn
- 2011-06-09 CA CA2838803A patent/CA2838803A1/en not_active Abandoned
- 2011-06-09 US US14/123,797 patent/US20140116782A1/en not_active Abandoned
- 2011-06-09 WO PCT/US2011/039875 patent/WO2012170030A1/en active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20010035302A1 (en) * | 1998-03-13 | 2001-11-01 | Desai Praful C | Method for milling casing and drilling formation |
US20060113113A1 (en) * | 2002-02-19 | 2006-06-01 | Smith International, Inc. | Steerable underreamer/stabilizer assembly and method |
US20050133268A1 (en) * | 2003-12-17 | 2005-06-23 | Moriarty Keith A. | Method and apparatus for casing and directional drilling using bi-centered bit |
US20080115973A1 (en) * | 2004-11-01 | 2008-05-22 | Allen Kent Rives | Underreamer And Method Of Use |
Also Published As
Publication number | Publication date |
---|---|
US20140116782A1 (en) | 2014-05-01 |
GB201322145D0 (en) | 2014-01-29 |
WO2012170030A1 (en) | 2012-12-13 |
CA2838803A1 (en) | 2012-12-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
732E | Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977) |
Free format text: REGISTERED BETWEEN 20140327 AND 20140402 |
|
WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |