EP1915505A1 - Verfahren und vorrichtung zum aufheben einer blockierung einer bohrkrone beim bohren - Google Patents
Verfahren und vorrichtung zum aufheben einer blockierung einer bohrkrone beim bohrenInfo
- Publication number
- EP1915505A1 EP1915505A1 EP06804333A EP06804333A EP1915505A1 EP 1915505 A1 EP1915505 A1 EP 1915505A1 EP 06804333 A EP06804333 A EP 06804333A EP 06804333 A EP06804333 A EP 06804333A EP 1915505 A1 EP1915505 A1 EP 1915505A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- drill bit
- drill
- adapter
- drilling
- drill string
- 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 abstract description 30
- 230000033001 locomotion Effects 0.000 claims abstract description 46
- 239000011435 rock Substances 0.000 claims abstract description 12
- 238000005553 drilling Methods 0.000 claims description 53
- 239000000463 material Substances 0.000 claims description 14
- 230000000295 complement effect Effects 0.000 claims description 8
- 239000002689 soil Substances 0.000 claims description 7
- 230000000903 blocking effect Effects 0.000 claims description 6
- 238000009412 basement excavation Methods 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- 238000011010 flushing procedure Methods 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 2
- 238000006073 displacement reaction Methods 0.000 abstract description 4
- 238000009527 percussion Methods 0.000 abstract 2
- 238000000605 extraction Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000009827 uniform distribution 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
- E21B31/00—Fishing for or freeing objects in boreholes or wells
- E21B31/03—Freeing by flushing
-
- 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
- E21B17/07—Telescoping joints for varying drill string lengths; Shock absorbers
- E21B17/073—Telescoping joints for varying drill string lengths; Shock absorbers with axial rotation
Definitions
- the present invention relates to a method for overriding a blockage of a drill bit during drilling, in particular impact or rotary impact drilling, holes in soil or rock material, wherein by a mounted on a drill string and acted upon by the drill string to a rotational movement and optionally impact movement and a borehole is formed with this connected drill bit.
- the present invention further relates to a device for overriding a blockage of a drill bit during drilling, in particular impact or rotary impact drilling, holes in soil or rock material, a drill bit mounted on a drill string and through the drill string to a rotary motion and optionally impact movement to Training a borehole is acted upon.
- a favorable case succeeds in occurrence of such a blockage of the drill bit at least a separation of the drill string from the remaining unfinished drill hole drill bit, so that at least the drill pipe can be used to carry out a new drilling operation again.
- the drill string must also remain in the unfinished wellbore, so that in addition to the fact that an increased time required to make a new well, which must be substantially adjacent to the unfinished well to achieve the required strength, is also a corresponding one Increased cost and material costs through the drill pipe remaining in the borehole and in each case left in the borehole drill bit occurs.
- the present invention therefore seeks to provide a method and apparatus for overriding blockage of a drill bit during a drilling operation so that not only the additional time, cost and material required to make a new hole can be avoided, but that in a simple manner after lifting the blockage of the drill bit, the hole in the unfinished hole can be continued or completed.
- a method of the type mentioned above is essentially characterized in that when a blockage of the drill bit, which prevents further drilling and in particular further rotation of the drill bit, the drill bit on the drill string of a linear movement against the Drilling direction and via a corresponding connection between the drill bit facing the end of the drill string and the drill bit and regardless of a rotary drive for performing the drilling operation is also subjected to a rotational movement in a direction opposite to the direction of rotational movement during the drilling operation.
- the drill bit on the drill string not only a linear movement against the drilling direction, but also independent of a usually not sufficiently strong as mentioned above rotational drive in addition to a rotational movement in a direction opposite to the direction of rotation during is subjected to the drilling operation, can be solved by the at least partially retracting the drill bit against the drilling direction and achieving a simultaneous rotational movement, the jamming or seizing of the drill bit, so that after lifting the blockade or jamming of the drill bit subsequently By the blockage interrupted drilling process of unfinished borehole can be continued or completed.
- the linear drive is strong enough to exert a sufficient extraction force on the drill string and thus subsequently on the drill bit against the drilling direction, so that it comes to a loosening of the drill bit in the linear direction of the borehole.
- the drill bit is subjected to a rotational movement counter to the direction of rotation for carrying out the drilling operation, so that the drill bit can become detached from a wedged or blocked state, which can be caused, for example, by slight loading. caused by adjacent rock strata.
- connection between the drill bit facing the end of the drill string and the drill bit via at least one helical or spiral Recess or flattening or elevation having adapter and a hiezu complementary profiling is performed on the drill bit, wherein the helical or spiral-like depression or flattening or elevation has a large inclination or slope to the longitudinal axis of the drill string.
- a merely pointwise engagement at several points in the region of the profilings is provided between the drill pipe or the adapter and the drill bit.
- Such a pointwise engagement in several places is sufficient for the transmission of necessary forces to achieve the simultaneous linear pull-out movement and the rotational movement against the rotational direction during drilling and allows, for example, in the region of the connection between the drill bit and the drill pipe or the adapter by excessive frictional forces the desired simultaneous linear pull-out movement and rotational movement can be achieved.
- a device of the type mentioned above is substantially characterized in that between the end facing the drill bit end of the drill string and the drill bit at least one spiral or helical connection is provided, which at a blocking of the drill bit in a Retracting the drill string opposite to the direction of drilling, the drill bit next to a linear movement ent against the drilling direction, the drill bit independently of a rotary drive for performing the drilling operation to a rotational movement in a direction opposite to the direction of rotation during the drilling process applied.
- the at least one spiral or helical connection is formed by a depression or elevation or flattening on an adapter interposed between the drill pipe and the drill bit and a complementary profiling on the drill bit.
- a plurality of screw or spiral connections or profiles between the drill pipe and the adapter and the drill bit is provided, which are each uniformly spaced.
- the at least one helical or spiral connection or profiling a relation to the longitudinal axis of the drill string great slope as corresponds to a further preferred embodiment of the device according to the invention.
- a plurality of substantially point or hemispherical elevations in a blind hole of the drill bit for cooperation with the spiral or helical recess (s) or recess (s ) is provided on the end facing the drill bit of the adapter.
- a plurality of adjacent, spiral flats on the outer circumference of the adapter or drill pipe and complementary flats in a blind hole the drill bit are provided, which have a polygonal, for example hexagonal, contour in cross section.
- a helical polygon can be easily formed while providing a reliable coupling available.
- a passageway for supplying a cooling or flushing fluid to exit channels or holes of the Drill bit and / or the adapter is provided, which at the excavation surface of the drill bit and / or the Circumferential surface of the adapter open, as corresponds to a further preferred embodiment of the device according to the invention.
- FIG. 1 shows a plan view of a drill bit of the device according to the invention for carrying out the method according to the invention
- FIG. 2 is a rear view of the drill bit shown in FIG. 1; FIG.
- Fig. 3 is a section along the line III-III of Fig. 1;
- Fig. 4 in a view similar to Figure 3 is a section along the line IV-IV of Fig. 1;
- FIG. 5 shows a side view of a first embodiment of an adapter used between the drill bit and the drill pipe according to FIGS. 1 to 4;
- FIG. 6 shows a side view of a modified embodiment of an adapter which is used between a drill bit and a drill rod in a representation similar to FIG. 5;
- FIG. and Fig. 7 is a section along the line VII-VII of Fig. 6 in a comparison with FIG. 6 enlarged scale.
- an adapter 3 is provided between a generally designated 1 drill bit and a drill pipe generally designated 2, wherein the drill string 2 is connected via a schematically indicated with 4 screw with the adapter 3, wherein the Adapter 3 is shown separately in Fig. 5.
- the adapter 3 at its end facing the drill bit 1 has at its outer circumference a plurality of helical or spiral depressions 7, which have a pitch which is marked by 8 in FIG Have inclination.
- the spiral or helical depressions or connections or profilings 7 on the outer circumference of the end 6 of the adapter 3 cooperate with punctiform or hemispherical elevations 9 of the drill bit, which are shown in more detail in FIGS. 3 and 4 and which provide reliable fixing the drill bit 1 on the adapter 3 and thus on the drill pipe 2 allows.
- the drill pipe 2 and thus the adapter 3 as Also, the drill bit 1 subjected to a linear pull-out movement according to the arrow 10, wherein the direction of movement of the usual drilling or advancing direction is opposite.
- the drilling process can be carried out directly by means of an appropriate loading of the drill pipe 2 and thus subsequently the drill bit 1 with the interposition of the adapter 3 by known drive means, which are known at a projecting end of the drill pipe 2 from the borehole Attack the way.
- both the drill pipe 2 and the adapter 3 are provided with a passageway 12 and 13, which opens into corresponding outlet channels or holes 14 of the drill bit 1, which in turn at the mining area 15 of the drill bit 1 open.
- the adapter 3 is provided starting from the passageway 13 with outlet channels 16 to assist in the removal of degraded material.
- the drill bit 1 For a removal of the mined material from the area of the excavation surface 15 of the drill bit 1 1 through openings 17 are also provided on the outer circumference of the drill bit.
- the drill bit 1 has corresponding recesses 18 on its outer circumference, which are flat. if a reliable removal of material from the area of the excavation surface 15 of the drill bit 1 allow.
- the drill bit 1 or its blind hole 11 may be provided with corresponding recesses or grooves, which with corresponding profilings, in particular elevations on the circumference of the end 6 of the Interact adapter 3.
- the drill bit facing the end of the drill string 2 may be provided directly with the corresponding spiral or helical depressions or elevations, which cooperate with corresponding profiles of the drill bit 1, so that an additional manufacturing cost for the adapter. 3 can be avoided.
- FIG. 6 and 7 embodiment of an in turn designated 3 adapter it is seen that this is again indicated at 6 designated, not shown drill bit end with a plurality of helical or flattened flats 19, which, as can be seen in particular from FIG. 7, a polygonal, in particular hexagonal, contour is formed in cross-section.
- a polygonal contour forming flattening can be in turn with a withdrawal of the drill string and the adapter 3 a Rotary loading on the drill bit, not shown in FIGS. 6 and 7, in a direction opposite to the drilling direction in order to loosen a stuck drill bit 1, so that subsequently a completion of a borehole is possible.
- the abutting flats 19 are each connected via rounded regions 20, which are defined by the outer circumference of the cylinder-like end 6 of the adapter 3.
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)
- Marine Sciences & Fisheries (AREA)
- Earth Drilling (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL06804333T PL1915505T3 (pl) | 2005-08-19 | 2006-08-11 | Sposób i urządzenie do zwalniania blokady koronki wiertniczej przy wierceniu |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT13862005 | 2005-08-19 | ||
PCT/AT2006/000338 WO2007019594A1 (de) | 2005-08-19 | 2006-08-11 | Verfahren und vorrichtung zum aufheben einer blockierung einer bohrkrone beim bohren |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1915505A1 true EP1915505A1 (de) | 2008-04-30 |
EP1915505B1 EP1915505B1 (de) | 2015-03-11 |
EP1915505B8 EP1915505B8 (de) | 2015-05-06 |
Family
ID=37199123
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20060804333 Active EP1915505B8 (de) | 2005-08-19 | 2006-08-11 | Verfahren und vorrichtung zum aufheben einer blockierung einer bohrkrone beim bohren |
Country Status (10)
Country | Link |
---|---|
US (1) | US20090133934A1 (de) |
EP (1) | EP1915505B8 (de) |
JP (1) | JP2009504950A (de) |
KR (1) | KR20080038341A (de) |
AU (1) | AU2006281954B2 (de) |
CA (1) | CA2619175C (de) |
PL (1) | PL1915505T3 (de) |
RU (1) | RU2391480C2 (de) |
WO (1) | WO2007019594A1 (de) |
ZA (1) | ZA200801213B (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011031528A2 (en) | 2009-08-27 | 2011-03-17 | Baker Hughes Incorporated | Methods and apparatus for manipulating and driving casing |
AT508991B1 (de) * | 2009-11-06 | 2012-09-15 | Dywidag Systems Int Gmbh | Verfahren zum bohren, insbesondere schlag- oder drehschlagbohren von löchern in boden oder gesteinsmaterial sowie vorrichtung hiefür |
EP2526252B1 (de) * | 2010-01-22 | 2017-08-02 | Randall E. Gosselin | Werkzeug zur auflösung von bohrlochverstopfungen und verwendungsverfahren dafür |
US8919452B2 (en) * | 2010-11-08 | 2014-12-30 | Baker Hughes Incorporated | Casing spears and related systems and methods |
DE102013020761B4 (de) * | 2013-12-09 | 2018-01-04 | Stahl- und Apparatebau Hans Leffer GmbH & Co. KG | Verriegelungsvorrichtung und -verfahren für die Werkzeugaufnahme einer Drehbohranlage |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1794196A (en) * | 1928-01-13 | 1931-02-24 | Gustavus A Montgomery | Control mechanism for rotary drill pipes |
US1785086A (en) * | 1928-03-01 | 1930-12-16 | Leroy G Gates | Automatic feed device for rotary drill bits |
US3405771A (en) * | 1966-04-12 | 1968-10-15 | Mr Dudley Hughes | Deep well motor impact tool and drilling apparatus |
US4270620A (en) * | 1979-01-12 | 1981-06-02 | Dailey Oil Tools, Inc. | Constant bottom contact tool |
GB8800572D0 (en) * | 1988-01-12 | 1988-02-10 | Red Baron Oil Tools Rental | Improvements in/relating to drilling tool |
US5119891A (en) | 1988-10-31 | 1992-06-09 | S & T No 13 Pty Ltd. | Adaptor for drilling strings with controllable air passage |
US6464023B2 (en) * | 1999-01-27 | 2002-10-15 | William N. Patterson | Hydraulic in-the-hole percussion rock drill |
-
2006
- 2006-08-11 JP JP2008526318A patent/JP2009504950A/ja not_active Withdrawn
- 2006-08-11 AU AU2006281954A patent/AU2006281954B2/en not_active Ceased
- 2006-08-11 WO PCT/AT2006/000338 patent/WO2007019594A1/de active Application Filing
- 2006-08-11 CA CA2619175A patent/CA2619175C/en not_active Expired - Fee Related
- 2006-08-11 US US11/990,392 patent/US20090133934A1/en not_active Abandoned
- 2006-08-11 PL PL06804333T patent/PL1915505T3/pl unknown
- 2006-08-11 RU RU2008110501/03A patent/RU2391480C2/ru not_active IP Right Cessation
- 2006-08-11 KR KR1020087003684A patent/KR20080038341A/ko not_active Application Discontinuation
- 2006-08-11 EP EP20060804333 patent/EP1915505B8/de active Active
-
2008
- 2008-02-05 ZA ZA200801213A patent/ZA200801213B/xx unknown
Non-Patent Citations (1)
Title |
---|
See references of WO2007019594A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP1915505B8 (de) | 2015-05-06 |
RU2008110501A (ru) | 2009-09-27 |
US20090133934A1 (en) | 2009-05-28 |
KR20080038341A (ko) | 2008-05-06 |
CA2619175C (en) | 2012-12-11 |
ZA200801213B (en) | 2009-01-28 |
CA2619175A1 (en) | 2007-02-22 |
JP2009504950A (ja) | 2009-02-05 |
WO2007019594A1 (de) | 2007-02-22 |
PL1915505T3 (pl) | 2015-09-30 |
AU2006281954A1 (en) | 2007-02-22 |
RU2391480C2 (ru) | 2010-06-10 |
EP1915505B1 (de) | 2015-03-11 |
AU2006281954B2 (en) | 2011-08-04 |
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