EP1668220A1 - Method and device for boring holes in soil or rock - Google Patents
Method and device for boring holes in soil or rockInfo
- Publication number
- EP1668220A1 EP1668220A1 EP04761046A EP04761046A EP1668220A1 EP 1668220 A1 EP1668220 A1 EP 1668220A1 EP 04761046 A EP04761046 A EP 04761046A EP 04761046 A EP04761046 A EP 04761046A EP 1668220 A1 EP1668220 A1 EP 1668220A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- drill bit
- casing
- tube
- drill
- pipe
- 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 16
- 239000011435 rock Substances 0.000 title claims abstract description 7
- 239000002689 soil Substances 0.000 title claims abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 50
- 238000009527 percussion Methods 0.000 claims abstract description 11
- 238000005253 cladding Methods 0.000 claims description 44
- 238000005553 drilling Methods 0.000 claims description 29
- 230000000295 complement effect Effects 0.000 claims description 5
- 238000005065 mining Methods 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000007787 solid Substances 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
- 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
-
- 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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/12—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor using drilling pipes with plural fluid passages, e.g. closed circulation systems
-
- 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
- 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
- E21B7/201—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes with helical conveying means
Definitions
- the present invention relates to a method for drilling, in particular percussion or rotary percussion drilling, of holes in soil or rock material, a drill hole being formed by a striking and / or rotating movement by means of a drill bit mounted on a drill pipe and a casing or
- the cladding tube is introduced into the borehole, and on a device for drilling, in particular percussion or rotary percussion drilling, of holes in soil or rock material, a drill bit mounted on a drill pipe forming a borehole by a striking and / or rotating movement and a casing - Or cladding tube can be inserted into the borehole.
- the mined material is either along the Removed from the borehole on the outer circumference of the jacket or cladding tube or through the inside of the jacket or cladding tube.
- the mined material is removed along the outer surface of the casing or cladding tube, there must be a sufficient distance between the outer surface of the cladding or cladding pipe and the inner wall of the borehole in order to provide a sufficient passage cross section.
- the mined material can only be introduced at a distance from the drill bit into the interior of the annular space between the drill pipe and the casing or cladding tube, with a corresponding device redirecting the cooling that is usually transported into the area of the drill bit - or rinsing fluid is made.
- the present invention aims to further develop a method and a device of the type mentioned at the outset such that simple and reliable removal of mined material from the area of the drill bit is possible.
- a method of the type mentioned is essentially characterized in that the mined material via at least one opening in the area of the connection point between the drill bit and an adjoining casing tube and / or at least one at a distance from the connection point between the drill bit and the Jacket tube provided passage opening in the between the outer circumference of the drill pipe and the inner circumference of the Jacket tube and the adjoining cladding tube is introduced and brought out of the borehole. It is thus proposed according to the invention that mined material is at least partially introduced directly behind the drill bit into the interior of the annular space between the drill pipe and the casing tube, so that material located directly behind the drill bit can be safely removed from this area. In addition, the mined material is introduced into the annular space between the casing and the drill pipe via at least one further passage opening in the casing pipe.
- the drilling process is interrupted intermittently and the drill bit with the drill pipe relative to the casing pipe into the interior of the casing pipe with sealing at least the passage opening in the area of the connection point between the casing tube and the drill bit is withdrawn.
- a guide device provided on the drill pipe in the region of the passage opening of the casing pipe in particular a thread-like profiling or screw conveyor, in the retracted state of the drill bit in relation to the casing tube, is rotated in particular against the direction of rotation during rotary impact drilling through the drill bit.
- a guide device or screw conveyor causes the material to be removed from the interior of the annular space by the rotary movement of the drill pipe for performing rotary hammer drilling and can remove a blockage of the through-opening of the casing tube by moving counter to the usual rotary movement.
- the drill bit relative to the casing tube and / or cladding tube in a known manner is rotatably mounted.
- mined material is crushed by a particularly polygonal profile, which at the end facing away from the drill bit's end is provided so that it is ensured that the passage opening is not obstructed by possibly coarse, degraded material.
- a device of the type mentioned at the outset is essentially a solution to the problems mentioned at the outset characterized in that in the area of the fixing of the casing pipe adjoining the drill bit and / or an impact shoe or adapter connected thereto, at least one passage opening for introducing degraded material into the formed between the outer circumference of the drill pipe and the inner circumference of the casing pipe and the adjoining cladding pipe Annulus is provided, and that at a distance from the connection point between the drill bit and / or the adapter and the casing tube at least one passage opening is provided on the circumference of the casing tube, which opens into the interior of the annular space defined between the outer circumference of the drill pipe and the inner circumference of the casing tube , As already mentioned above, not only is there an entry opening or passage opening immediately behind the drill bit, but there is also at least one passage opening on the outer circumference of the casing tube for proper removal of the mined material through the annular space between the drill pipe and the inner surface of the casing. or cladding tube provided.
- the drill bit is provided on its rear side facing away from the mining area with a polygonal profile which, when pulled back into a complementary manner relative to the casing tube, polygonal opening of the impact shoe or adapter occurs.
- the polygonal profiling or outer shape on the back of the drill bit ensures that the mined material is shredded, and when the drill bit is pulled back, in particular to remove corresponding blockages in the passage opening in a complementary polygonal receiving opening, the drill bit can be securely received and the passage opening can be exposed reliably is.
- guide devices are provided for removing the mined material located in the annular space .
- Such guide devices can be easily formed on the outer surface of the drill pipe.
- the control device lines are formed by a thread-like profile or a screw conveyor on the outer circumference of the drill pipe.
- Such a thread-like profiling or screw conveyor taking into account the rotary movement of the drill pipe during rotary hammer drilling, results in a safe removal of the mined material from or through the annular space between the outer surface of the drill pipe and the inner surface of the casing tube or cladding tube.
- the drill string in the position of the drill bit retracted into the casing tube can be subjected to a rotary movement counter to the rotary movement during rotary impact drilling.
- a rotary movement counter to the rotary movement during rotary impact drilling reliably removes any blockages in the area of the passage opening by the guide devices or by the provided screw conveyor, so that, after the drill rod and the drill bit have been extended into the drilling position, safe removal is again achieved the passage opening now exposed can be achieved.
- the drill bit relative to the jacket and / or cladding tube is rotatably mounted.
- FIG. 1 shows a sectional view of a device according to the invention for carrying out the method according to the invention
- FIG. 2 shows a side view, partly in section, of the device according to the invention in a representation similar to FIG. 1;
- FIG. 3 shows on an enlarged scale an adapter of the device according to the invention for coupling the drill bit to the drill pipe as well as for transferring a tensile load to the casing pipe adjoining the drill bit;
- FIG. 4 shows a schematic sectional illustration of the area of the coupling between the drill pipe and the cladding tube for applying an impact or pressure load to the cladding tube of the device according to the invention
- Fig. 5 is perspective views of intermediate elements, wherein Fig. 5a is an illustration of the intermediate element, which serves to transmit a compressive load from the drill pipe to the cladding tube, while Fig. 5b is an illustration of an intermediate element to transmit a tensile load from the drill pipe to the casing pipe;
- 6 is an enlarged view of a connection between adjacent sleeve tube elements;
- FIG. 7 shows a section along line VII of FIG. 6 through the connection of adjacent tubular casing elements, FIG. 6 showing a view in the direction of arrow VI of FIG. 7;
- FIG. 8 shows a side view of the device according to the invention in a representation similar to FIG. 2, only the region of the casing tube for the removal of removed material being indicated;
- FIG. 9 shows a partial sectional illustration of the design according to FIG. 8, the drill bit being arranged at a distance from the casing tube, as in FIG. 8;
- FIG. 10 shows the drill bit in a position similar to FIG. 9 in a position withdrawn in contact with the casing tube
- FIG. 11 shows a section along the line XI-XI of FIG. 8 in the foremost region of the casing tube.
- FIG. 12 shows, on an enlarged scale, a detailed representation of area XII of FIG. 11.
- a generally designated 1 device for drilling or rotary impact drilling has a drill bit, indicated schematically by 2, which, via a drill pipe 3, leads to impact or rotary impact drilling for the removal of in FIG. 1 and 2 material is not shown.
- a casing pipe 4 with a comparatively thick cross-section or high strength is connected to the drill bit 2, the casing pipe 4 having a receptacle 5 in the end facing away from the drill bit 2, in which a casing pipe 6 is received, the casing pipe 6 not only one compared to the diameter D of the casing tube 4 has a reduced diameter d, but also has a smaller wall thickness and lower strength.
- the drill bit 2 is directly coupled to the drill pipe 3 via an adapter 7 shown in detail in FIG. 3, with this adapter 7 also carrying, in particular pulling, the casing tube 4 via an intermediate element 8 shown in detail in FIG. 5b.
- the casing tube 4 has a comparatively large length and, in addition to a corresponding strength, it also has a diameter D, which largely corresponds to the dimensions / dimensions of the borehole formed by the drill bit 2, which is not shown in more detail, through the casing tube 4 ensures that accurate drilling can be carried out.
- the cladding tube 6 received in the receptacle 5 at the end of the casing tube 4 facing away from the drill bit 2 is also subjected to pressure by the drill rod 3 via a further intermediate element 10, which is shown in more detail in FIGS. 4 and 5a, so that the Cladding tube 6 is also introduced into the borehole according to arrow 11 when the drill bit 2 is being driven.
- the adapter 7 shown on a larger scale in FIG. 3 it can be seen that it has a stop surface 12 which cooperates with a correspondingly complementary stop surface 13 of the intermediate piece 8 shown in FIG. 5b, so that when the adapter 7 is acted on in the direction of the arrow 9, the casing pipe 4 is carried along by the drill pipe screwed into the screw connection 14, not shown in FIG. 3, in addition to propelling the drill bit 2.
- passage channels 15 and outlet openings 16 for rinsing the drill bit 2 and / or for taking away mined material are also indicated in the adapter 7, as will be discussed in more detail below.
- the intermediate element 10 which is shown in detail in FIGS. 4 and 5a, is provided for the impact or pressure application of the cladding tube 6.
- the entrainment of the intermediate element 10 and subsequently of the cladding tube 6 again takes place via a stop surface 17 in the region of the drill rod 3 protruding from the borehole, the stop surface 17 of the drill rod 3 interacting with a corresponding complementary stop surface 18.
- the stop surfaces of both the adapter 7 and the drill pipe 3 and the stop surfaces 13 and 18 of the sleeve-shaped intermediate elements 8 and 10 are each to the longitudinal axis of the drill pipe, which in FIG is indicated, inclined.
- the stop surface 18 of the intermediate element 10, which is provided between the drill string 3 and the cladding tube 6, is smaller than the stop surface 3 of the intermediate element 8 between the adapter 7 and thus the drill string 3 and the casing tube 4, so that overall a greater force is transmitted to the jacket tube 4 than the jacket tube 6 during a forward movement of the drill pipe 3, so that it is ensured that the jacket tube 4 is introduced into the borehole at least to the same extent as the jacket tube 6. Furthermore it can be assumed that to insert the casing tube 4 a greater force is required for proper insertion of the casing tube 4 into the borehole due to the larger diameter and thus higher frictional resistances between the outer diameter of the casing tube 4 and the borehole wall.
- FIG. 4 An additional fixation for the cladding tube 6 by a pin or bolt 20 is also indicated in FIG. 4.
- a sleeve-like element 21 is provided in each case, projecting projections or elevations 22, which are indicated in the corresponding recesses, being indicated for the interior of the cladding tube or cutouts 23 of the cladding tube engage for a secure connection of adjacent cladding tube elements 6 'and 6 ".
- the projections or elevations 22 can already be formed in advance, so that the sleeve element 21 must have a corresponding elasticity when connecting adjacent cladding tube elements 6 'and 6 ", or they can be arranged in the region of the cladding tube elements 6 to be connected after the sleeve-like element 21 has been arranged 'and 6 "are formed by a simple tool in the area of predetermined breaking points.
- a plurality of through openings 24 are indicated at a distance from the drill bit 2 in the casing tube 4, the material removal from the area of the drill bit 2 using the FIGS. 8 to 12 in detail will be discussed.
- correspondingly stepped or recessed areas 25 extending in the longitudinal direction being provided on the outer circumference of the casing tube 4, whereby the mined material indicated schematically at 26 is conveyed into the area of the passage openings 24 assume that on the back of the drill bit 2 in the area of the end face 27 of the tubular casing 4 material reaches the area of the front area of the adapter 7 protruding in the drilling position shown in FIGS. 8 and 9.
- the adapter 7 is polygonal in the area of the connection to the drill bit 2, in particular essentially triangular with rounded corners, so that in this part, material can also enter the ring or free space between the drill pipe 3 or the adapter 7 and the casing tube 4.
- the polygonal design 32, 33 of the portion of the adapter 7 and the intermediate element 8 protruding from the casing tube 4 ensures that the mined material located behind the drill bit 2 is largely shredded, so that safe removal is possible.
- a guide device 28 is also formed on the foremost section of the drill pipe 3, which is formed by a thread-like profile or a screw conveyor.
- the screw conveyor or guide device 28 is also already indicated schematically in FIGS. 1 and 2.
- the conveyed screw or guide device 28 safely removes the removed material through the annular space 31 between the casing 4 and the drill pipe 3 as well as through the annular space between the drill pipe 3 and the cladding tube 6 adjoining the casing tube 4.
- the drilling speed can thus be improved and the directional accuracy increased by targeted removal of the mined material.
- the drill bit 2 can be withdrawn in contact with the casing tube 4 in accordance with the arrow 29, as a result of which the guide device or screw conveyor 28 is displaced relative to the passage openings 24 , so that a cleaning effect of the passage openings 24 can be achieved by the entrainment effect.
- the passage openings 24 can be cleaned by the reverse conveying direction of the screw conveyor 28. After the cleaning has been carried out, the drill bit 2 is again acted upon in the direction of arrow 30 in FIG. 9 in order to continue the dismantling process.
- the transmission of the forces from the drill pipe 3 to the casing tube 4 and the cladding tube 6 with the interposition of the sleeve-shaped intermediate elements 8 and 10 also ensures that the drill bit 2 directly coupled to the drill pipe 3 can be acted upon both for a rotation and for an impact movement is, while both the casing tube 4 and the cladding tube 6 are introduced into the borehole only in the axial direction or longitudinal direction of the borehole to be produced without rotational stress.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0155803A AT412802B (en) | 2003-10-01 | 2003-10-01 | METHOD AND DEVICE FOR DRILLING HOLES IN SOIL OR ROCK MATERIAL |
PCT/AT2004/000324 WO2005031107A1 (en) | 2003-10-01 | 2004-09-28 | Method and device for boring holes in soil or rock |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1668220A1 true EP1668220A1 (en) | 2006-06-14 |
EP1668220B1 EP1668220B1 (en) | 2007-11-14 |
Family
ID=33494528
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04761046A Not-in-force EP1668220B1 (en) | 2003-10-01 | 2004-09-28 | Method and device for boring holes in soil or rock |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1668220B1 (en) |
AT (2) | AT412802B (en) |
DE (1) | DE502004005525D1 (en) |
WO (1) | WO2005031107A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102425382A (en) * | 2011-09-22 | 2012-04-25 | 中国石油大学(北京) | Dynamic pressure lubrication drilling tool and drilling tool assembly with same |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT501875B1 (en) * | 2005-06-07 | 2008-05-15 | Alwag Tunnelausbau Gmbh | METHOD AND DEVICE FOR DRILLING, IN PARTICULAR FITTING OR TURNING OF A HOLE IN GROUND OR ROCK MATERIAL |
AT505189B1 (en) * | 2007-04-19 | 2009-01-15 | Techmo Entw & Vertriebs Gmbh | DEVICE FOR MANUFACTURING A DRILL OIL IN ROCK MATERIAL |
AT522402B1 (en) | 2019-04-11 | 2022-12-15 | Rene Egger | Method and device for drilling holes in soil or rock material |
CN112664141B (en) * | 2020-12-28 | 2023-03-24 | 安徽马钢张庄矿业有限责任公司 | Pipe placing structure for filling and drilling construction and construction method |
CN113216847A (en) * | 2021-05-21 | 2021-08-06 | 瑞腾基础工程技术(北京)股份有限公司 | Prestressed anchor cable pore-forming method suitable for rock-soil intersection complex stratum |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE795205A (en) * | 1972-02-10 | 1973-05-29 | Atlas Copco Ab | METHOD AND APPARATUS FOR ROTARY DRILLING |
DE2924392C2 (en) * | 1979-06-16 | 1982-09-23 | Brückner Grundbau GmbH, 4300 Essen | Drilling device for overlay drilling |
HRP970600B1 (en) * | 1996-11-12 | 2002-06-30 | Techmo Entw & Vertriebs Gmbh | Process and apparatus for drilling and covering a bore with a layer |
AT411383B (en) * | 2001-11-30 | 2003-12-29 | Techmo Entw & Vertriebs Gmbh | METHOD AND DEVICE FOR DRILLING HOLES |
-
2003
- 2003-10-01 AT AT0155803A patent/AT412802B/en not_active IP Right Cessation
-
2004
- 2004-09-28 DE DE502004005525T patent/DE502004005525D1/en active Active
- 2004-09-28 AT AT04761046T patent/ATE378496T1/en active
- 2004-09-28 EP EP04761046A patent/EP1668220B1/en not_active Not-in-force
- 2004-09-28 WO PCT/AT2004/000324 patent/WO2005031107A1/en active IP Right Grant
Non-Patent Citations (1)
Title |
---|
See references of WO2005031107A1 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102425382A (en) * | 2011-09-22 | 2012-04-25 | 中国石油大学(北京) | Dynamic pressure lubrication drilling tool and drilling tool assembly with same |
CN102425382B (en) * | 2011-09-22 | 2014-06-25 | 中国石油大学(北京) | Dynamic pressure lubrication drilling tool and drilling tool assembly with same |
Also Published As
Publication number | Publication date |
---|---|
DE502004005525D1 (en) | 2007-12-27 |
EP1668220B1 (en) | 2007-11-14 |
ATE378496T1 (en) | 2007-11-15 |
ATA15582003A (en) | 2004-12-15 |
WO2005031107A1 (en) | 2005-04-07 |
AT412802B (en) | 2005-07-25 |
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