EP2165039B1 - Dispositif pour forer dans des couches terrestres et de la roche - Google Patents
Dispositif pour forer dans des couches terrestres et de la roche Download PDFInfo
- Publication number
- EP2165039B1 EP2165039B1 EP08767039.4A EP08767039A EP2165039B1 EP 2165039 B1 EP2165039 B1 EP 2165039B1 EP 08767039 A EP08767039 A EP 08767039A EP 2165039 B1 EP2165039 B1 EP 2165039B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- casing pipe
- shoulder
- guide
- bore
- crown
- 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.)
- Active
Links
- 238000005553 drilling Methods 0.000 title claims description 12
- 239000011435 rock Substances 0.000 title claims description 4
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000284 resting effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 1
Images
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
- 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
- E21B7/208—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes using down-hole drives
-
- 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
- E21B10/36—Percussion drill bits
- E21B10/40—Percussion drill bits with leading portion
-
- 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
- E21B10/64—Drill bits characterised by the whole or part thereof being insertable into or removable from the borehole without withdrawing the drilling pipe
-
- 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
- E21B17/14—Casing shoes for the protection of the bottom of the casing
Definitions
- the present invention refers to a device for performing of a drilling in earth-layers and rocks at the same time as a casing pipe is forced downwards into the ground, so that strokes from a countersink hammer via a bore crown or a guide belonging to a bore crown is acting against a shoulder situated at the lower most portion of the casing pipe in driving downwards of the casing pipe into the bore hole made together with the bore crown used.
- Bore devices of today are usually built up around a countersink hammer and is used for instance for drilling of a well, said drilling tool comprising a pilot crown having a reamer bit provided, so that it can be throw outwards eccentrically in relation to the pilot crown and make the bore being drilled larger.
- the bore hole made can get the dimension enough in order to besides the bore crown in a swung in position has place for a casing pipe, which has been moved downwards into the bore hole at the same time as the hole is being made.
- the casing pipe is driven downwards into the hole together with the bore crown by that the strokes of a counter sink hammer via the bore crown or a guide is acting against a shoulder situated at the lower most portion of the casing pipe.
- the casing pipes usually consist of three meter's lengths of steel or plastic which are welded or screwed together as the casing pips are driven downwards into the bore hole.
- One drawback using this technique is that during the end of the drilling and the removing of the bore head out from the bore hole, valuable material must be left in the hole, which is anchored in different ways at the end portion of the casing pipe and which is necessary for carrying out the drilling and the driving downwards of the casing pipe into the bore hole.
- WO 03/004824 discloses a drilling tool and a method for down-the-hole drilling.
- the drilling tool comprises a central pilot drill bit, a reamer and a guide body and being intended to drill a hole ahead of a following casing tube.
- the casing pipe has a welded-on casing shoe, which forms a circular collar in the inside of the casing tube, which is used to drive down the tube by the down-the-hole hammer.
- One object of the present invention is to eliminate those drawbacks present of known bore devices of the type mentioned above by providing a new type of device for drilling in earth-layers and rocks.
- the characterizing features of the present invention are set forth in the claims enclosed.
- the shoulder which is situated at the lower portion of the casing pipe, formed by a wearing ring of steel or plastic resting against an edge portion within the inner mantle surface of the casing pipe, which directly or indirectly cooperates against a shoulder surface facing in a direction to the free end portion of the casing pipe, said shoulder surface is located on the guide belonging to the casing pipe and also a boring string rotary connected to a boring machine.
- a shoulder provided protecting ring can further be used in the free end portion of the casing pipe in preventing of penetrating of gravel and sand between the bore crown and the casing pipe and the shoulders of which are located on the protecting ring so that the wearing ring indirectly cooperates against the shoulder surface of the bore crown or the guide.
- the same consists of a device illustrated in Fig. 2 comprising a bore or pilot crown 1, a reamer crown 2 and a guide 3 of a counter sink hammer not illustrated in the drawing and a portion of a boring string 4.
- the crowns 1 and 2 and the guide 3 are rotated via the boring string 4 in a way known and are influenced axially by the counter sink hammer.
- a casing pipe 5 of preferably a plastic material as e.g. PEH-plastic, according to the invention, is provided with a shoulder 6 in its lower most portion 7, which is constituted by a wearing ring 10 of a steel or plastic material, resting against an edge portion 8 within the inner mantle surface 9 of the casing pipe 5.
- the guide 3 in this embodiment example has a downwardly directed shoulder surface 11 located on a expanded portion 12 and which transfers the strokes of the counter sink hammer against the wearing ring 10 and its shoulder 6 either directly via a protecting ring 13 illustrated in Fig. 2 , which prevents penetrating of gravel and sand between the bore crown and casing pipe.
- the protecting ring 13 also has a first or second shoulder surface 14 and 15 for transferring strokes from the counter sink hammer indirectly against the wearing ring 10 from the shoulder surface 11 of the guide 3.
- the casing pipe 5 is drawn downwards by the strokes directed against the guide 3 and from this they are directly transferred to the shoulder 6 of the wearing ring 10 or indirect via the shoulder surfaces 14 and 15 of the protecting ring 13.
- FIG. 1 an embodiment example of a known formation of the parts of a bore crown of an equipment for a simultaneous drilling and lining of a bore hole is illustrated in a cross section view, in said example a casing pipe 5'of steel is used, which in its lower most free end portion 7' has a sleeve formation 10' of steel, which is welded to the casing pipe 5' in order to constitute in the same time a shoulder 6' directed upwards for transferring of strokes driven downwards from a counter sink hammer via a shoulder surface 11' on the guide 3'.
- a cross section view of the wearing ring 10 is illustrated; as it is formed according to the invention and in Fig. 4 a cross section view of the protecting ring 13 is illustrated, as it is formed according to the present invention.
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)
Claims (2)
- Dispositif pour effectuer des forages dans des couches terrestres et de la roche simultanément au cours d'un enfoncement d'un tubage (5) dans le sol, le dispositif comprenant une couronne de forage (1) d'un marteau de fraisage et un tubage (5) doté d'un épaulement (6) situé à la partie la plus basse (7) du tubage (5), une surface d'épaulement (11) située sur la couronne de forage (1) ou sur un guide (3) appartenant à la couronne de forage (1) et laquelle surface d'épaulement (11) est orientée vers le bas dans une direction jusqu'à la partie la plus basse (7), libre, du tubage (5), grâce à quoi les courses du marteau de fraisage par le biais de la couronne de forage (1) ou du guide (3) appartenant à la couronne de forage (1) permettent de coopérer contre l'épaulement (6) dans l'entraînement vers le bas du tubage (5) dans le trou de forage réalisé conjointement avec la couronne de forage (1), caractérisé en ce que l'épaulement (6) est formé par un anneau d'usure (10) placé en position contre une partie de bord (8) au sein de la surface de manteau interne (9) du tubage (5) pour une coopération directe ou indirecte contre la surface d'épaulement (11).
- Dispositif selon la revendication 1, caractérisé en ce que l'anneau d'usure (10) est destiné à une coopération indirecte avec ledit guide (3) par le biais d'un anneau de protection (13) s'étendant entre la surface de manteau interne (9) du tubage (5) et le guide (3) et entre la surface de manteau interne (9) du tubage (5) avec l'anneau d'usure (10) adjacent et le guide, ledit anneau de protection (13), à son tour, comportant une première surface d'épaulement (14) dirigée vers le bas pour coopération contre l'anneau d'usure (10) et une seconde surface d'épaulement (15) dirigée vers le haut pour coopération avec la surface d'épaulement (11) dirigée vers le bas, qui est située sur le guide (3).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0701274A SE0701274L (sv) | 2007-05-21 | 2007-05-21 | Anordning vid utförande av borrning i jordlager och berg |
PCT/SE2008/000345 WO2008143577A1 (fr) | 2007-05-21 | 2008-05-21 | Dispositif pour forer dans des couches terrestres et de la roche |
Publications (4)
Publication Number | Publication Date |
---|---|
EP2165039A1 EP2165039A1 (fr) | 2010-03-24 |
EP2165039A4 EP2165039A4 (fr) | 2015-12-09 |
EP2165039B1 true EP2165039B1 (fr) | 2017-12-27 |
EP2165039B8 EP2165039B8 (fr) | 2018-02-21 |
Family
ID=39356797
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08767039.4A Active EP2165039B8 (fr) | 2007-05-21 | 2008-05-21 | Dispositif pour forer dans des couches terrestres et de la roche |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2165039B8 (fr) |
SE (1) | SE0701274L (fr) |
WO (1) | WO2008143577A1 (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI20085961A0 (fi) * | 2008-10-13 | 2008-10-13 | Atlas Copco Rotex Ab Oy | Menetelmä ja porauslaitteisto uppoporaukseen |
EP3052735A4 (fr) * | 2013-09-30 | 2017-06-14 | OY Atlas Copco Rotex AB | Procédé d'assemblage d'un dispositif de forage et dispositif de forage |
FI20165116L (fi) * | 2016-02-17 | 2017-08-18 | Geonex Oy | Poralaitteisto |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4706764A (en) * | 1986-08-01 | 1987-11-17 | Ingersoll-Rand Company | Two piece down hole drill chuck |
SE503324C2 (sv) * | 1990-02-19 | 1996-05-28 | Sandvik Ab | Borrverktyg för sänkborrning, med central pilotkrona |
US5009271A (en) * | 1990-07-16 | 1991-04-23 | Milan Maric | Drill assembly |
US5803192A (en) * | 1996-05-13 | 1998-09-08 | Holte; Ardis L. | Drill bit retainer for a down hole hammer assembly |
US5647447A (en) * | 1996-06-10 | 1997-07-15 | Ingersoll-Rand Company | Bit retention device for a bit and chuck assembly of a down-the-hole percussive drill |
US6502650B1 (en) * | 2000-11-15 | 2003-01-07 | Sandvik Ab | Percussive down-the-hole hammer for rock drilling, and a drill bit used therein |
SE522135C2 (sv) | 2001-07-02 | 2004-01-13 | Uno Loef | Borrverktyg för sänkborrning |
SE0400929L (sv) * | 2004-04-07 | 2005-09-27 | Atlas Copco Rotex Ab Oy | Anordning vid verktyg för sänkborrning med pilotborrkrona, rymmare och styrkropp |
KR100685386B1 (ko) * | 2004-09-03 | 2007-02-22 | 임병덕 | 인-라인 확장 윙을 갖는 시추공 굴착장치 및 그 구동방법 |
-
2007
- 2007-05-21 SE SE0701274A patent/SE0701274L/xx unknown
-
2008
- 2008-05-21 WO PCT/SE2008/000345 patent/WO2008143577A1/fr active Application Filing
- 2008-05-21 EP EP08767039.4A patent/EP2165039B8/fr active Active
Non-Patent Citations (1)
Title |
---|
None * |
Also Published As
Publication number | Publication date |
---|---|
WO2008143577A1 (fr) | 2008-11-27 |
SE530357C2 (sv) | 2008-05-13 |
EP2165039A1 (fr) | 2010-03-24 |
EP2165039A4 (fr) | 2015-12-09 |
SE0701274L (sv) | 2008-05-13 |
EP2165039B8 (fr) | 2018-02-21 |
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