EP0884446A2 - Bohrgerät - Google Patents
Bohrgerät Download PDFInfo
- Publication number
- EP0884446A2 EP0884446A2 EP98110794A EP98110794A EP0884446A2 EP 0884446 A2 EP0884446 A2 EP 0884446A2 EP 98110794 A EP98110794 A EP 98110794A EP 98110794 A EP98110794 A EP 98110794A EP 0884446 A2 EP0884446 A2 EP 0884446A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- piston
- pressure
- housing
- nozzle
- pressure piston
- 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
- 238000005553 drilling Methods 0.000 title abstract description 15
- 239000012530 fluid Substances 0.000 claims abstract description 11
- 238000005520 cutting process Methods 0.000 claims abstract description 9
- 239000007788 liquid Substances 0.000 claims description 23
- 238000009527 percussion Methods 0.000 claims description 16
- 230000001050 lubricating effect Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 2
- 238000011010 flushing procedure Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000005461 lubrication Methods 0.000 abstract 1
- 239000002689 soil Substances 0.000 description 12
- 238000005065 mining Methods 0.000 description 5
- 229910000278 bentonite Inorganic materials 0.000 description 3
- 239000000440 bentonite Substances 0.000 description 3
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000007789 sealing 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
- E21B7/04—Directional drilling
- E21B7/06—Deflecting the direction of boreholes
- E21B7/065—Deflecting the direction of boreholes using oriented fluid jets
-
- 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
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/06—Down-hole impacting means, e.g. hammers
- E21B4/14—Fluid operated hammers
- E21B4/145—Fluid operated hammers of the self propelled-type, e.g. with a reverse mode to retract the device from the hole
-
- 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
- E21B7/18—Drilling by liquid or gas jets, with or without entrained pellets
-
- 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
- E21B7/205—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes without earth removal
- E21B7/206—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes without earth removal using down-hole drives
Definitions
- the invention relates to an apparatus and a method for example for the manufacture or expansion of Earth drilling and trenchless laying of underground lines or to drive pipes into the ground.
- Such devices for example ram boring machines, have usually with one inside their housing With the help of a fluid, for example compressed air, axially back and forth moving self-steering piston, his Kinetic energy either directly or indirectly via an axially movable impact tip in the housing to the housing and possibly also to the ground delivers. In this way, the device performs both Smashing as well as displacement and propulsion work.
- a fluid for example compressed air
- axially back and forth moving self-steering piston his Kinetic energy either directly or indirectly via an axially movable impact tip in the housing to the housing and possibly also to the ground delivers. In this way, the device performs both Smashing as well as displacement and propulsion work.
- drilling rigs are known that cover the ground not only suppress, but also dismantle and, for example Convey against the direction of advance.
- Such Devices have one with one, for example Steering or inclined surface provided drill head during of drilling straight ahead essentially around the longitudinal axis of the device rotates, at least when cornering is non-rotatable for a short time.
- the device can be provided with a drill pipe that is connected to a rotary and feed drive.
- the device in the Area of the drill head to be provided with nozzles that over a drill pipe with a drilling fluid, usually a bentonite suspension.
- the nozzles can, however, as with the drill after European patent application 0 195 559 also with a Liquid so high pressure are supplied so that a cutting beam to break down the in the area of Drill head located soil results.
- the hydraulically mining and / or extracting the soil and the devices working with a steering beam are connected via a hose line or a drill pipe connected to an external pump, which in individual cases required pressure generated.
- the pressures required are very different; they range from a few bars when drilling with a rinsing liquid up to over 100 bar when cutting jet drilling. Especially with hard ones Soil conditions, pressures above 100 bar are required.
- the pumps are correspondingly expensive subject to heavy wear if it is the liquid is a bentonite suspension.
- the invention proposes in the case of a device with a back and forth movement in the housing, preferably massive pistons in the housing with Nozzles for the flushing, lubricating, cutting and / or steering fluid to arrange related pressure chamber. Because the pressure builds up in the device itself, the pressure chamber only needs a small amount of liquid Pressure to be supplied. A pure one is sufficient Gravity or a conventional feed pump that conveying the liquid even over long distances allows while the operating pressure of the liquid on site, i.e. is generated inside the device. The device therefore does not need a high pressure line with the Feed pump to be connected. This results in With regard to the drilling routes that occur in practice considerable savings of up to 200 m. This also applies in the event that the liquid is not via a hose line, but through a driven drill pipe to the drilling or displacement head is directed.
- the pressure generation on site is preferably done with With the help of an axially movable arranged in the chamber Pressure piston, for example with the help of a Return spring always back to its starting position brought.
- the piston can act as a self-controlling piston be educated; it preferably has a closed one Face and is free of pressure medium holes.
- a particularly simple construction results when the pressure piston with one in the device housing - preferably pneumatically - moved back and forth Percussion piston is operatively connected, such as him have conventional ram boring machines.
- Such a preferably self-controlling percussion piston can then both Propulsion energy for the device as well as mining energy as well as delivering drive energy for the pressure piston. This happens in particular in such a way that the Percussion piston at least partially its kinetic energy transfers to the pressure piston.
- the work to be done by the percussion piston consists in in this case of two phases: a compression phase, during which the percussion piston and the pressure piston over the peg cooperate, and a propulsion phase, in which the percussion piston has its remaining kinetic Releases energy to the device housing via the inner collar and in this way causes its propulsion. Then sweep the pressure piston under the influence of a hydraulic fluid and / or a return spring and the percussion piston back to their starting positions and begins new work cycle.
- the pressure chamber can be connected via a housing-fixed line Be supplied with liquid in which there is a valve, for example, a check valve is located. Furthermore the pressure chamber can be designed as an axial pressure channel be that leads to at least one nozzle and in which also flows into the liquid line.
- the liquid line can be spatially in front of the piston face in the front piston position in the pressure chamber flow out. But there is also the possibility that the piston opens the opening of the liquid line in the Periodically transferred pressure chamber wall and this alternately opens and closes.
- the device according to the invention can also be at the beginning or at Arranged end of a preferably driven linkage be or engage in a jacking pipe.
- a pulsating jet of hydraulic fluid which is for mining the earth, for steering a drilling or expanding device in the ground or also to remove the loosened soil leaves.
- the ram boring machine consists of a housing 1, which its front end is provided with a thread 2, into the one device tip in the form of a step head 3 is screwed in with a seal 4.
- a work space 5 in which there is a pneumatic driven self-steering percussion piston 6 back and forth moved.
- the work space 5 is by an inner collar 7 of one Piston chamber in front of it in the direction of advance 8 separated with a pressure piston 9.
- the pressure piston 9 has a through a bore 10 in the inner collar 7th guided rear pin 11, which is in operative connection with the percussion piston 6.
- the pressure piston 9 with one on the wall of the piston chamber 8 sealing ring 12th provided and has a collar 13, with the help of which he a return spring 14 on a shoulder 15 the striking tip 3 supports.
- From the piston chamber 8 leads a pressure channel 16 to a nozzle 17 on the front End of the impact tip 3.
- A protrudes into this pressure channel front pin 18 of the pressure piston 9 and seals the Pressure channel with the help of an O-ring seal 19 opposite the piston chamber 8. It opens into the pressure channel 16 provided with a feed pump, not shown, fixed to the housing Channel 20 for low pressure liquid, the with a check valve 21 is provided periodically Feeds liquid into the pressure channel.
- the pressure piston 9 is under the influence of Return spring 14 in its rear end position.
- the pin 11 projects beyond the inner collar 7 by the protrusion length 22, which is less than the distance 23 between the front end face of the pressure piston 9 and the shoulder 15. It follows that the percussion piston 6 its kinetic energy on route 22 initially on the pressure piston 9 and when reaching the inner collar 7 its remaining kinetic energy to the Device housing 1 releases while the end of the pin 11th dips into the collar bore 10 until the pressure piston 9 reached its front end position on the shoulder 15 has and under the influence of the return spring 14 in his shown starting position returns.
- the pressure piston 9 rises the pressure of the liquid in the pressure channel 16, which with the frequency of the percussion piston movement depending on the pressure in individual cases and the nature of the nozzle 17 and their alignment as a lubricating or rinsing liquid, cutting jet cutting the soil and / or emerges as a steering jet from the nozzle 17.
- An external feed pump can also be used instead of an external one Kick the liquid container with the one for the Operation of the ram boring machine or the movement of the percussion piston 6 mostly required compressor connected and the liquid, for example water or a Water / bentonite suspension, via the housing channel 20 to Pressure chamber or pressure channel 16 promotes.
- the device can also be used with several, in particular from each other independent nozzles that are different Fulfill tasks. So a nozzle can cut a jet generate while others, for example obliquely steering jets arranged with respect to the device axis generate and deliver further nozzles of rinsing liquid, the the displacement and the friction resistance reduced on the device and / or a removal of loosened Soil enables.
- the device creates, regardless of its construction in individual a way with the help of a pulsating Liquid jet to dismantle the drilling or To influence the direction of advance and / or degraded Remove soil.
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
Description
- Fig. 1
- den vorderen Teil des Rammbohrgeräts und
- Fig. 2
- ein Gerät der in Fig. 1 dargestellten Art am Ende eines angetriebenen Gestänges.
Claims (15)
- Gerät, insbesondere zum Herstellen oder Aufweiten von Erdbohrungen oder zum Einbringen von Leitungen ins Erdreich miteinem Gehäuse (1),einem in dem Gehäuse hin- und herbewegten Kolben (6,9),mindestens einer Düse (17) für eine Schneid-, Schmier-, Spül- und/oder Lenkflüssigkeit undeiner im Gehäuse angeordneten, mit der Düse in Verbindung stehenden Druckkammer (16).
- Gerät nach Anspruch 1, gekennzeichnet durch eine Kolbenkammer (8) mit einem axial beweglichen Druckkolben (9).
- Gerät nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Kolben (9) eine geschlossene Stirnfläche besitzt.
- Gerät nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß an dem Druckkolben (9) eine Rückstellfeder (14) angreift.
- Gerät nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der Druckkolben (9) und ein Schlagkolben (6) in Wirkverbindung miteinander stehen.
- Gerät nach Anspruch 5, dadurch gekennzeichnet, daß der Druckkolben (9) mit einem rückwärtigen, einen Innenkragen (7) des Gehäuses (2) durchgreifenden Zapfen (11) versehen ist.
- Gerät nach Anspruch 6, dadurch gekennzeichnet, daß die Vorkraglänge (22) des Zapfens (11) geringer ist als der maximale Hubweg (23) des Druckkolbens (9).
- Gerät nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß die Druckkammer (16) mit einer Flüssigkeitsleitung (20) verbunden ist.
- Gerät nach Anspruch 8, dadurch gekennzeichnet, daß in der Flüssigkeitsleitung (20) ein Ventil (21) angeordnet ist.
- Gerät nach Anspruch 8 oder 9, dadurch gekennzeichnet, daß die Flüssigkeitsleitung (20) in den Druckkanal (16) mündet.
- Gerät nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, daß mindestens ein Teil der Düsen (17) über steuerbare Ventile mit Druckflüssigkeit versorgt wird.
- Gerät nach einem der Ansprüche 1 bis 11, gekennzeichnet durch ein mit einem Dreh- und/oder Vorschubantrieb versehenes Bohrgestänge.
- Gerät nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, daß die Gerätespitze (3) mit einem Gestänge oder einem Vortriebsrohr verbunden ist.
- Gerät nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, daß das Gehäuse (1) mit einer angetriebenen Lafette verbunden ist.
- Verfahren zum Herstellen oder Aufweiten von Erdbohrungen unter Verwendung einer pulsierenden Spül-, Schneid-, Schmier- und/oder Lenkflüssigkeit.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19725052 | 1997-06-13 | ||
DE19725052A DE19725052C2 (de) | 1997-06-13 | 1997-06-13 | Bohrgerät |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0884446A2 true EP0884446A2 (de) | 1998-12-16 |
EP0884446A3 EP0884446A3 (de) | 2000-10-04 |
EP0884446B1 EP0884446B1 (de) | 2008-03-19 |
Family
ID=7832409
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98110794A Expired - Lifetime EP0884446B1 (de) | 1997-06-13 | 1998-06-12 | Bohrgerät |
Country Status (3)
Country | Link |
---|---|
US (1) | US6138775A (de) |
EP (1) | EP0884446B1 (de) |
DE (1) | DE19725052C2 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102619469A (zh) * | 2012-04-13 | 2012-08-01 | 辽宁工程技术大学 | 煤层钻孔割缝卸压装置 |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19946587A1 (de) | 1999-09-29 | 2001-04-12 | Eurodrill Gmbh Consulting Engi | Vorrichtung zum Richtungsbohren |
NL1026115C2 (nl) * | 2004-05-05 | 2005-11-08 | Meide Design Engineering B V | Inrichting en werkwijze voor het door de grond duwen/trekken van kabels en/of kabelbuizen. |
US7938205B2 (en) | 2004-07-06 | 2011-05-10 | Tracto-Technik Gmbh | Boring head method and boring head for a ground boring device |
US20060088384A1 (en) * | 2004-10-22 | 2006-04-27 | Putnam Samuel W | Stored energy coupling and pipe bursting apparatus |
SK50622009A3 (sk) * | 2009-09-24 | 2011-05-06 | Ivan Kočiš | Spôsob rozrušovania materiálov a zariadenie na vykonávanie tohto spôsobu |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3712543A (en) * | 1971-04-19 | 1973-01-23 | Exotech | Apparatus for generating pulsed jets of liquid |
EP0126268A1 (de) * | 1983-04-27 | 1984-11-28 | Fried. Krupp Gesellschaft mit beschränkter Haftung | Vorrichtung zur Erzeugung pulsierend einwirkender mechanischer und hydraulischer Energie zum Zerkleinern von Gestein |
US4749050A (en) * | 1987-02-13 | 1988-06-07 | Ritter Lester L | Impact tool for tunneling |
WO1989004418A1 (en) * | 1987-11-02 | 1989-05-18 | Underground Technologies, Inc. | Self-propelled subsoil penetrating tool system |
DE4114593A1 (de) * | 1991-03-15 | 1992-09-17 | Tracto Technik | Schlaggeraet, insbesondere selbstgetriebenes rammbohrgeraet |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2157259C3 (de) * | 1971-11-18 | 1973-06-07 | Tracto Technik | Rammbohrgerät |
US4290496A (en) * | 1979-10-19 | 1981-09-22 | Briggs Aubrey C | Combination impact and pressure liquid rock drill |
CA1217759A (en) * | 1983-07-08 | 1987-02-10 | Intech Oil Tools Ltd. | Drilling equipment |
US4674579A (en) * | 1985-03-07 | 1987-06-23 | Flowmole Corporation | Method and apparatus for installment of underground utilities |
GB8806506D0 (en) * | 1988-03-18 | 1988-04-20 | Pilot Drilling Control Ltd | Drilling apparatus |
SE8901200L (sv) * | 1989-04-05 | 1990-10-06 | Uniroc Ab | Anordning foer spolning av en borrkrona |
CH683016A5 (de) * | 1990-12-24 | 1993-12-31 | Terra Ag Tiefbautechnik | Verfahren zum Aufweiten eines Bohrloches und Aufweitgerät. |
SE506207C2 (sv) * | 1992-01-22 | 1997-11-24 | Sandvik Ab | Sänkborrmaskin |
US5332048A (en) * | 1992-10-23 | 1994-07-26 | Halliburton Company | Method and apparatus for automatic closed loop drilling system |
US5833017A (en) * | 1996-10-10 | 1998-11-10 | Kennametal Inc. | Cutting bit assembly for impinging an earth strata |
-
1997
- 1997-06-13 DE DE19725052A patent/DE19725052C2/de not_active Expired - Fee Related
-
1998
- 1998-06-11 US US09/096,229 patent/US6138775A/en not_active Expired - Lifetime
- 1998-06-12 EP EP98110794A patent/EP0884446B1/de not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3712543A (en) * | 1971-04-19 | 1973-01-23 | Exotech | Apparatus for generating pulsed jets of liquid |
EP0126268A1 (de) * | 1983-04-27 | 1984-11-28 | Fried. Krupp Gesellschaft mit beschränkter Haftung | Vorrichtung zur Erzeugung pulsierend einwirkender mechanischer und hydraulischer Energie zum Zerkleinern von Gestein |
US4749050A (en) * | 1987-02-13 | 1988-06-07 | Ritter Lester L | Impact tool for tunneling |
WO1989004418A1 (en) * | 1987-11-02 | 1989-05-18 | Underground Technologies, Inc. | Self-propelled subsoil penetrating tool system |
DE4114593A1 (de) * | 1991-03-15 | 1992-09-17 | Tracto Technik | Schlaggeraet, insbesondere selbstgetriebenes rammbohrgeraet |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102619469A (zh) * | 2012-04-13 | 2012-08-01 | 辽宁工程技术大学 | 煤层钻孔割缝卸压装置 |
CN102619469B (zh) * | 2012-04-13 | 2013-12-11 | 辽宁工程技术大学 | 煤层钻孔割缝卸压装置 |
Also Published As
Publication number | Publication date |
---|---|
DE19725052C2 (de) | 1999-10-28 |
US6138775A (en) | 2000-10-31 |
EP0884446B1 (de) | 2008-03-19 |
DE19725052A1 (de) | 1998-12-24 |
EP0884446A3 (de) | 2000-10-04 |
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