WO1998013575A1 - Ensemble trepan - Google Patents
Ensemble trepan Download PDFInfo
- Publication number
- WO1998013575A1 WO1998013575A1 PCT/FI1997/000578 FI9700578W WO9813575A1 WO 1998013575 A1 WO1998013575 A1 WO 1998013575A1 FI 9700578 W FI9700578 W FI 9700578W WO 9813575 A1 WO9813575 A1 WO 9813575A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- bit
- bits
- ring
- elevation
- drilling
- Prior art date
Links
- 238000005553 drilling Methods 0.000 claims abstract description 15
- 239000011435 rock Substances 0.000 claims abstract description 4
- 239000002689 soil Substances 0.000 claims abstract 2
- 239000002699 waste material Substances 0.000 claims description 3
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000009527 percussion Methods 0.000 description 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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/20—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes
-
- 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
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/046—Couplings; joints between rod or the like and bit or between rod and rod or the like with ribs, pins, or jaws, and complementary grooves or the like, e.g. bayonet catches
- E21B17/0465—Couplings; joints between rod or the like and bit or between rod and rod or the like with ribs, pins, or jaws, and complementary grooves or the like, e.g. bayonet catches characterised by radially inserted locking 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
-
- 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
- E21B10/62—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable
Definitions
- This method relates to a drill bit assembly, where a hole is drilled with several drill bits detachable from one another and where, by means of a component transmitting the turning motion, the bit that drills the inner hole portion rotates the ring bit that drills the outer hole portion.
- the sequence of their opening can be made to follow as wanted in arranging the coupling that is to be opened at first more easily opened with respect to its oblique angle on rotating the bit in its opening direction.
- Fig. 1 shows a ring bit
- Fig. 2 shows an inner bit used in combination with the ring bit.
- Fig. 3 shows another inner bit and ring bit combination.
- Fig. 4 shows a third inner bit and ring bit combination.
- Figure 1 shows extensions 3 and 4 in three rows on the inner ring bit surface and similarly placed on the inner circumference. Most suitably the extensions are arranged with equal spacings on three spots. In the lower part of the ring bit there are special elevations 5, three of them, too, placed at the extensions. The upper surface of elevations 5 has a level portion and a slanting portion 10.
- Figure 2 shows a corresponding inner bit with grooves 7 and 8 for ring bit extensions 3 and 4. There are grooves also with equal spacings in three spots on the inner bit outer surface. Further, there are in the bit three axial grooves 9 along which the ring bit extensions can shift over by ring bit assembly onto the inner bit.
- the ring bit With the ring bit in proper place, the ring bit is turned so that extensions 3 and 4 enter the corresponding grooves 7 and 8. Also the lower edg elevation 5 enters the matching hollow 6. When turnig is carried out to its end, the ring bit is tightened with respect to the inner bit by the slanting surface of elevation 5 so that the backlash between the extensions is eliminated.
- Figure 3 shows another embodiment, where elevation 5 is on the inner surface of ring bit 1'.
- the counter faces d,d' are tightened so as to be free of backlash.
- the upper surface of elevation 5 is divided into a level portion 13 and a slanting portion 10.
- the oblique angle is ⁇ and its value most suitably between 4° - 30°.
- a big angle reduces the tightening effect and facilititates also the falling of ring bit off its locking when the inner ring is not being rotated.
- the most advantageous oblique angles are between 5° - 10°. Drill waste is conveyed through the inner bit along the channel marked with broken lines.
- FIG 4 there is still one version, where the counter- faces are marked with references e,e'.
- the drill waste is conveyed along the same channel 9 as where the axial motion is carried out by elevation 5 in the detaching and fitting stage of the bits.
- Level portion 13 of the elevation secures the ring bit in place on the inner bit when the bit assembly is upright on starting drilling, for instance.
- the elevation 5 itself, by its axial locking effect, prevents the ring bit and then also the protecting tube 12 from moving moving farther than inner but if drilling is done downward into soft ground.
- the inner bit turning motion in proper direction secures the function of elevation 5 as well as the functions of locking and elimination of backlash.
- the elevation can be either in the ring bit or in the inner bit and, correspondingly, the hollows 6,9,11 in the ring bit or in the inner bit.
- the bit opening arrangement can be adjusted by means of slanting surface 10 and angle .
- the coupling opens in which a greater angle is used and the last to open is the coupling with a smaller angle.
- the coupling with the smaller angle gets more effectively tightened and, accordingly, it is the last to open.
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (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)
Abstract
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU43875/97A AU4387597A (en) | 1996-09-25 | 1997-09-25 | Bit assembly |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI963819A FI963819A7 (fi) | 1996-04-15 | 1996-09-25 | Teräjärjestelmä |
FI963819 | 1996-09-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998013575A1 true WO1998013575A1 (fr) | 1998-04-02 |
Family
ID=8546739
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FI1997/000578 WO1998013575A1 (fr) | 1996-09-25 | 1997-09-25 | Ensemble trepan |
Country Status (2)
Country | Link |
---|---|
AU (1) | AU4387597A (fr) |
WO (1) | WO1998013575A1 (fr) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000057019A1 (fr) * | 1999-03-18 | 2000-09-28 | Techmo Entwicklungs- Und Vertriebs Gmbh | Dispositif de forage |
WO2004057148A1 (fr) * | 2002-12-23 | 2004-07-08 | Robit Rocktools Ltd | Ensemble trepan |
WO2010071563A1 (fr) * | 2008-12-18 | 2010-06-24 | Sandvik Intellectual Property Ab | Outil de forage pour forage à percussion dans la roche ; kit de complément, trépan annulaire et sabot de tubage |
WO2015059341A1 (fr) | 2013-10-22 | 2015-04-30 | Tri-Mach Oy | Dispositif de forage |
USD802637S1 (en) | 2016-09-09 | 2017-11-14 | Robit Oyj | Ring bit |
USD802638S1 (en) | 2016-09-09 | 2017-11-14 | Robit Oyj | Ring bit |
EP2627851A4 (fr) * | 2010-10-15 | 2017-12-27 | Robit Rocktools LTD. | Ensemble foret |
USD807418S1 (en) | 2016-09-09 | 2018-01-09 | Robit Oyj | Ring bit |
USD807417S1 (en) | 2016-09-09 | 2018-01-09 | Robit Oyj | Ring bit |
USD861051S1 (en) | 2018-03-13 | 2019-09-24 | Robit Oyj | Drill bit |
USD870168S1 (en) | 2018-03-13 | 2019-12-17 | Robit Oyj | Drill bit |
EP3498967A4 (fr) * | 2016-08-09 | 2020-03-18 | Mitsubishi Materials Corporation | Outil d'excavation |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996018798A1 (fr) * | 1994-12-13 | 1996-06-20 | Ilomaeki Valto | Procede de forage et ensemble trepan pour la realisation de ce procede |
US5590726A (en) * | 1992-12-03 | 1997-01-07 | Jarvela; Jorma | Drilling apparatus |
-
1997
- 1997-09-25 WO PCT/FI1997/000578 patent/WO1998013575A1/fr active Application Filing
- 1997-09-25 AU AU43875/97A patent/AU4387597A/en not_active Abandoned
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5590726A (en) * | 1992-12-03 | 1997-01-07 | Jarvela; Jorma | Drilling apparatus |
WO1996018798A1 (fr) * | 1994-12-13 | 1996-06-20 | Ilomaeki Valto | Procede de forage et ensemble trepan pour la realisation de ce procede |
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000057019A1 (fr) * | 1999-03-18 | 2000-09-28 | Techmo Entwicklungs- Und Vertriebs Gmbh | Dispositif de forage |
WO2004057148A1 (fr) * | 2002-12-23 | 2004-07-08 | Robit Rocktools Ltd | Ensemble trepan |
CN100342113C (zh) * | 2002-12-23 | 2007-10-10 | 罗比特摇动工具有限公司 | 钻头组件 |
US7347291B2 (en) | 2002-12-23 | 2008-03-25 | Robit Rocktools Ltd | Bit assembly |
RU2329369C2 (ru) * | 2002-12-23 | 2008-07-20 | Робит Роктулз Лтд | Узел бурового долота |
KR100925742B1 (ko) | 2002-12-23 | 2009-11-11 | 로비트 록툴스 엘티디 | 비트 조립체 |
KR100939098B1 (ko) * | 2002-12-23 | 2010-01-28 | 로비트 록툴스 엘티디 | 비트 조립체용 링 비트 |
WO2010071563A1 (fr) * | 2008-12-18 | 2010-06-24 | Sandvik Intellectual Property Ab | Outil de forage pour forage à percussion dans la roche ; kit de complément, trépan annulaire et sabot de tubage |
EP2627851A4 (fr) * | 2010-10-15 | 2017-12-27 | Robit Rocktools LTD. | Ensemble foret |
WO2015059341A1 (fr) | 2013-10-22 | 2015-04-30 | Tri-Mach Oy | Dispositif de forage |
EP3498967A4 (fr) * | 2016-08-09 | 2020-03-18 | Mitsubishi Materials Corporation | Outil d'excavation |
US10851593B2 (en) | 2016-08-09 | 2020-12-01 | Mitsubishi Materials Corporation | Drilling tool |
USD802638S1 (en) | 2016-09-09 | 2017-11-14 | Robit Oyj | Ring bit |
USD802637S1 (en) | 2016-09-09 | 2017-11-14 | Robit Oyj | Ring bit |
USD807418S1 (en) | 2016-09-09 | 2018-01-09 | Robit Oyj | Ring bit |
USD807417S1 (en) | 2016-09-09 | 2018-01-09 | Robit Oyj | Ring bit |
USD861051S1 (en) | 2018-03-13 | 2019-09-24 | Robit Oyj | Drill bit |
USD870168S1 (en) | 2018-03-13 | 2019-12-17 | Robit Oyj | Drill bit |
Also Published As
Publication number | Publication date |
---|---|
AU4387597A (en) | 1998-04-17 |
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