EP1448866B1 - Verfahren und vorrichtung zum bohren von löchern - Google Patents
Verfahren und vorrichtung zum bohren von löchern Download PDFInfo
- Publication number
- EP1448866B1 EP1448866B1 EP02791587A EP02791587A EP1448866B1 EP 1448866 B1 EP1448866 B1 EP 1448866B1 EP 02791587 A EP02791587 A EP 02791587A EP 02791587 A EP02791587 A EP 02791587A EP 1448866 B1 EP1448866 B1 EP 1448866B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- drill
- jacket tube
- drill bit
- rod assembly
- drilling
- 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.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 title claims description 20
- 238000005553 drilling Methods 0.000 claims description 48
- 238000007789 sealing Methods 0.000 claims description 46
- 239000012809 cooling fluid Substances 0.000 claims description 32
- 239000000463 material Substances 0.000 claims description 31
- 238000009412 basement excavation Methods 0.000 claims description 9
- 239000011435 rock Substances 0.000 claims description 7
- 239000002689 soil Substances 0.000 claims description 6
- 230000000295 complement effect Effects 0.000 claims description 2
- 230000002000 scavenging effect Effects 0.000 claims 8
- 238000009527 percussion Methods 0.000 claims 4
- 238000005253 cladding Methods 0.000 description 62
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 22
- 238000011010 flushing procedure Methods 0.000 description 15
- 239000012530 fluid Substances 0.000 description 9
- 238000005065 mining Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000004873 anchoring Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000010009 beating Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000001141 propulsive effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000002352 surface water Substances 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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/10—Valve arrangements in drilling-fluid circulation systems
- E21B21/103—Down-hole by-pass valve arrangements, i.e. between the inside of the drill string and the annulus
-
- 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
- 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 OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
Definitions
- the present invention relates to a method for drilling, in particular impact or rotary impact drilling, of Holes in soil or rock material, where by a drill bit supported on a drill pipe by a hammering and / or rotating motion a borehole is formed and a cladding tube is inserted into the wellbore is degraded, with at least one supply port degraded Material and / or in particular through the drill pipe in the area of the drill bit introduced rinsing or cooling fluid in one between the outer circumference of the drill string and introduced into the inner circumference of the cladding tube defined annular space and discharged from the wellbore.
- the invention further relates to a device for drilling, in particular impact or rotary impact drilling, from holes in Soil or rock material, one on a drill string mounted drill bit by a beating and / or rotating motion forms a borehole and a drill pipe surrounding jacket or cladding tube in the borehole einbringbar, in particular through the interior of the Bohrgestlindes a rinsing or cooling fluid in the field of Removal surface of the drill bit can be brought in and mined material and / or the rinsing or cooling fluid over at least one Feed opening in an annulus between the drill pipe and the cladding tube einbringbar and ausbringbar from the borehole is.
- Methods and devices of the type mentioned are for example from AT-B 390 303, WO 98/21439 or WO 00/57019 known, in these known embodiments degraded material and / or introduced flushing or cooling fluid substantially via a between the Drill pipe and the cladding tube defined annulus applied becomes.
- the flushing or cooling fluid may be in the range the excavation surface of the drill bit, for example via a corresponding cavity introduced in the interior of the drill string become.
- a disadvantage of these known embodiments is in particular the fact that at a water entry when performing the drilling, where appropriate the water enters the borehole under high pressure, this incoming water together with the mined material as well as the introduced rinsing or cooling fluid in particular through the annulus between the drill string and the cladding tube as well as along the outer circumference of the cladding tube is discharged from the well and thus a hazard representing for the operator, wherein due to a prevailing, high pressure, if necessary also the entire drilling device against the drilling direction can be discharged from the borehole.
- the present invention aims to provide a method and a device of the type mentioned above further, that upon entry of water, if necessary under high pressure, in the borehole and especially in the Ensured area of the drill bit a seal to this effect can be that the leakage of water in particular about the available during the normal drilling process stationary transport cross sections for mined material and rinsing or cooling fluid is prevented and a safe Anchoring the drilling device or at least the Jacket or cladding tube is achieved.
- the method of the beginning mentioned type essentially characterized in that at or after completion of the well, the supply of Flushing or cooling fluid is interrupted in the drill bit, that the feed opening for the introduction of mined material and / or rinsing or cooling fluid in the annular space between interrupted the drill pipe and the cladding tube, in particular is sealed fluid-tight and that the jacket or cladding tube at its projecting from the borehole end set the borehole wall and against this fluid-tight is sealed.
- both the Supply of flushing or cooling fluid interrupted in the drill bit is as well as the access or supply opening in the Annular space between the drill string and the cladding tube interrupted or is sealed fluid-tight, it is ensured that upon entry of water into the wellbore, in particular in the area of the drill bit, this if necessary high pressure water is not contrary to Supply direction for the flushing or cooling fluid and in the Abtransportides for the mined material and the introduced Rinsing or cooling fluid discharged from the wellbore will, so that a corresponding threat to the operator as well as damage outside of Boreholes located additional devices prevented becomes.
- the invention provides that the jacket or cladding tube at its protruding from the borehole Fixed end against the borehole wall and fluid-tight is sealed, so that also a leakage of water over the between the outer circumference of the cladding tube and the Boreholeinnenwand free space safely avoided becomes. It is thus provided according to the invention that in the area the drill bit a reliable seal the annulus between the drill string and the cladding tube, which during the drilling process for a removal of the mined Material is used, achievable and simultaneously leakage of water over the outer circumference of the cladding tube is also prevented. It also ensures that not contrary to the feed pressure for the rinsing or cooling fluid optionally water via the supply line drilled out of the drill hole in the drill pipe and in corresponding feeders outside the borehole is introduced.
- the jacket tube supply opening for an introduction of material in the annulus between the drill pipe and the cladding tube by moving the drill bit against the direction of drilling over at least one of the the excavation surface of the drill bit facing away end provided Sealing is sealed.
- the cladding tube in the region of the seal on the from the borehole projecting end to prevent a Secured distance from borehole counter to drilling direction, in particular wedged or jammed.
- a Secured distance from borehole counter to drilling direction in particular wedged or jammed.
- the drill bit For an appropriate backup of after removing the Drill string in the borehole remaining cladding as well the drill bit is according to a further preferred embodiment suggested that after removing the drill pipe in a conventional manner, the borehole, in particular the jacket or cladding tube, with a hardening material is filled.
- a device of the type mentioned above essentially characterized that in the supply line for the flushing or cooling fluid into the drill bit as well as in the area of at least a feed opening in the annulus between the drill string and at least one sealing element is provided to the cladding tube is and that the cladding on the borehole projecting end to the surrounding soil or rock material via a fixing and / or sealing device set and sealed fluid-tight.
- both the supply line for a supply of the flushing or cooling fluid into the drill bit as also the supply opening for the removal of dismantled Material and introduced rinsing or cooling fluid accordingly is interrupted and sealed to a withdrawal optionally water entering at high pressure over the drill bit as well as during the drilling process to prevent transport cross-section provided.
- an appropriate determination and / or sealing device for fixing and sealing provided the projecting from the borehole end of the cladding tube.
- Such a check valve can be correspondingly easy and cost, especially in the field of drill bit immediately before the exit of the flushing fluid from corresponding Through openings in the mining area of the Arrange drill bit and results in the event that in the area the mining area entering water a higher Should have pressure as the supply pressure of the flushing fluid, immediately an automatic interruption and sealing the supply line for the flushing fluid.
- One Such sealing element can be correspondingly to that of the excavation surface of the drill bit opposite end of the drill bit provide, as already explained above, by a retraction of the drill bit in the cladding tube on completion the bore or possibly a movement of the Drill bit by acting on the mining surface water pressure against the propulsive forces directly and automatically the at least one feed opening in the annulus between interrupted the drill pipe and the cladding tube and is sealed, so that a leakage of water, in particular under high pressure, reliable over this annulus to the outside is prevented.
- the sealing element at a matched to the inner dimensions of the cladding tube Extension of the drill bit is formed, which with additional Sealing elements, in particular sealing rings formed is.
- Such an extension is used during the drilling process as a guide for centering the drill bit in the Cladding tube and can be correspondingly accurate in one, if necessary reinforced, received front portion of the cladding to be after a retraction or retraction the drill bit counter to the drilling direction in the cladding tube a reliable sealing of the feed opening in the annulus between the drill string and the cladding tube.
- the sealing effect can hiebei next to a precise fit arrangement the drill bit or the extension of the drill bit in Cladding by additional provision of sealing elements, in particular seals are supported, which in particular are arranged such that in the closed position the additional sealing elements according to the positioning or formation of the at least one access opening are arranged.
- Fixing and sealing the projecting from the borehole End of the cladding tube is according to a further preferred Embodiment proposed that at the fixing and / or sealing device for fixing and sealing of the cladding tube at the projecting from the borehole End provided at least one securing or clamping element is.
- Such a securing or clamping element allows a substantially unhindered introduction of the Cladding during the drilling process, during an application or force in the sense of expulsion of the cladding tube from the borehole counter to the drilling direction an additional clamping force and thus supporting power is provided for fixing the cladding tube.
- a special reliable and easy to manufacture additional protection of the cladding can be hiebei thereby achieve that the securing or clamping element of a ring element surrounding the cladding tube is formed, which on its outer surface a conically tapering Has surface and with a complementary, conical tapered inner surface of the fixing element at a movement of the cladding tube cooperates counter to the direction of drilling and a movement of the cladding tube against the Drilling direction prevents, as a further preferred Embodiment of the device according to the invention corresponds.
- a drill bit 1 which is mounted on a drill pipe 2 is made a hole 3, the drill bit 1 at its excavation surface 4, for example, corresponding hard material or carbide inserts 5 has.
- a rinsing or cooling fluid in the area of the mining area 4 of the drill bit 1 is introduced, wherein in Figs. 1 and 2, an outlet opening 7 is indicated.
- a check valve 8 which is opposite to the 9 indicated Supply direction for the flushing or cooling fluid closes.
- the drill string 2 is surrounded by a cladding tube 10, wherein degraded material and introduced flushing or cooling fluid according to the arrows 26 via passage or Feed openings 12 in the annular space 13 between the outer periphery the drill string 2 and the inner circumference of the cladding tube 10 introduced and deployed from the borehole 3 becomes, as shown in Fig. 1, which the drilling state shows.
- the cladding tube 10 is projecting at its out of the borehole 3 End region 14 via a fixing device 15 on the the borehole 3 surrounding material 16 secured, in addition a sealing element 17 is indicated.
- Fig. 2 the state is shown, in which the drill bit 1 either against the drilling direction 9 in the interior of the cladding tube 10 has been withdrawn or the drill bit 1 for example, by an entry of fluid, in particular Water according to the arrow 21 in the interior of the borehole 3 shifted against the drilling direction in the cladding tube 10 has been.
- fluid in particular Water according to the arrow 21 in the interior of the borehole 3 shifted against the drilling direction in the cladding tube 10 has been.
- the position shown in Fig. 2 includes an entry of water under high pressure in the front of Dismantling surface of the drill bit 1 lying space 22 the check valve 8 in the supply line 6 for the rinsing or Cooling fluid.
- the supply openings 12 in the annulus 13 between the drill string 2 and the cladding tube 10 by a sealing member 23 is closed, which on an extension 24 facing away from the excavation surface 4 of the drill bit 1 End is formed, wherein the sealing member 23rd not only according to the exact fit inside the cladding tube 10th is guided, but to further support the sealing effect additional sealing elements 25, in particular sealing rings having. It is thus reliable by the sealing element 23 an entry of material as well as possibly Water under high pressure into the interior of the annular space 13 avoided.
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)
Description
Claims (12)
- Verfahren zum Bohren, insbesondere Schlag- oder Drehschlagbohren, von Löchern (3) in Boden- oder Gesteinsmaterial, wobei durch eine an einem Bohrgestänge (2) gelagerte Bohrkrone (1) durch eine schlagende und/oder drehende Bewegung ein Bohrloch (3) gebildet wird und ein Mantel- bzw. Hüllrohr (10) in das Bohrloch (3) eingebracht wird, wobei über wenigstens eine Zufuhröffnung (12) abgebautes Material und/oder insbesondere durch das Bohrgestänge (2) in den Bereich der Bohrkrone (1) eingebrachtes Spül- bzw. Kühlfluid in einen zwischen dem Außenumfang des Bohrgestänges (2) und dem Innenumfang des Hüllrohrs (10) definierten Ringraum (13) eingebracht und aus dem Bohrloch (3) ausgebracht wird, dadurch gekennzeichnet, daß bei bzw. nach Fertigstellung des Bohrloches (3) die Zufuhr von Spül- bzw. Kühlfluid in die Bohrkrone (1) unterbrochen wird, daß die Zufuhröffnung (12) für das Einbringen von abgebautem Material und/oder Spül- bzw. Kühlfluid in den Ringraum (13) zwischen dem Bohrgestänge (2) und dem Hüllrohr (10) fluiddicht abgedichtet wird und daß das Mantel- bzw. Hüllrohr (10) an seinem aus dem Bohrloch (3) ragenden Ende gegenüber der Bohrlochwand (16) festgelegt und fluiddicht abgedichtet wird.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die im Hüllrohr (16) vorgesehene Zufuhröffnung (12) für ein Einbringen von Material in den Ringraum (13) zwischen dem Bohrgestänge (2) und dem Hüllrohr (10) durch ein Verschieben der Bohrkrone (1) entgegen der Bohrrichtung über wenigstens ein an dem von der Abbaufläche der Bohrkrone (1) abgewandten Ende vorgesehenes Abdichtelement (8, 23) abgedichtet wird.
- Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Hüllrohr (10) im Bereich der Abdichtung an dem aus dem Bohrloch (3) vorragenden Ende zur Verhinderung einer Entfernung entgegen der Bohrrichtung aus dem Bohrloch (3) gesichert, insbesondere verkeilt bzw. verklemmt wird.
- Verfahren nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, daß das Bohrgestänge (2) nach Fertigstellung der Bohrung in an sich bekannter Weise von der Bohrkrone (1) getrennt wird und aus dem Hüllrohr (10) ausgebracht wird.
- Verfahren nach Anspruch 4, dadurch gekennzeichnet, daß nach dem Entfernen der Bohrgestänges (2) in an sich bekannter Weise das Bohrloch (3), insbesondere das Mantel- bzw. Hüllrohr (10), mit einem aushärtenden Material verfüllt wird.
- Vorrichtung zum Bohren, insbesondere Schlag- oder Drehschlagbohren, von Löchern (3) in Boden- oder Gesteinsmaterial, wobei eine an einem Bohrgestänge (2) gelagerte Bohrkrone (1) durch eine schlagende und/oder drehende Bewegung ein Bohrloch (3) ausbildet und ein das Bohrgestänge (2) umgebendes Mantel- bzw. Hüllrohr (10) in das Bohrloch (3) einbringbar ist, wobei insbesondere durch das Innere des Bohrgestänges (2) ein Spül- bzw. Kühlfluid in den Bereich der Abbaufläche der Bohrkrone (1) einbringbar und abgebautes Material und/oder das Spül- bzw. Kühlfluid über wenigstens eine Zufuhröffnung (12) in einen Ringraum (13) zwischen dem Bohrgestänge (2) und dem Hüllrohr (10) einbringbar und aus dem Bohrloch (3) ausbringbar ist, dadurch gekennzeichnet, daß in der Zufuhrleitung (6) für das Spül- bzw. Kühlfluid in die Bohrkrone (1) als auch im Bereich der wenigstens einen Zufuhröffnung (12) in den Ringraum (13) zwischen dem Bohrgestänge (2) und dem Hüllrohr (10) wenigstens ein Abdichtelement (8, 23) vorgesehen ist und daß das Hüllrohr (10) an dem aus dem Bohrloch (3) ragenden Ende (14) an dem umgebenden Boden- oder Gesteinsmaterial (16) über eine Festlegungs- und/oder Abdichteinrichtung (15, 17) festgelegt und fluiddicht abgedichtet ist.
- Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, daß in der Zuleitung (6) für das Spül- bzw. Kühlfluid zu der Bohrkrone (1) ein entgegen der Zufuhrrichtung (9) des Spül- bzw. Kühlfluids schließendes Rückschlagventil (8) vorgesehen ist.
- Vorrichtung nach Anspruch 6 oder 7, dadurch gekennzeichnet, daß an dem von der Abbaufläche (4) der Bohrkrone (1) abgewandten Ende der Bohrkrone wenigstens ein Abdichtelement (23) vorgesehen ist, welches nach Fertigstellung des Bohrloches (3) insbesondere durch eine Bewegung der Bohrkrone (1) entgegen der Bohrrichtung (9) die im Hüllrohr (10) ausgebildete Zufuhröffnung (12) in den Ringraum (13) zwischen dem Bohrgestänge (2) und dem Hüllrohr (10) abdichtet.
- Vorrichtung nach Anspruch 8, dadurch gekennzeichnet, daß das Abdichtelement (23) an einem an die Innenabmessungen des Hüllrohrs (10) angepaßten Fortsatz (24) der Bohrkrone (1) gebildet ist, welcher mit zusätzlichen Dichtelementen (25), insbesondere Dichtringen, ausgebildet ist.
- Vorrichtung nach einem der Ansprüche 6 bis 9, dadurch gekennzeichnet, daß an der Festlegungs- und/oder Abdichteinrichtung (15, 17) zur Festlegung und Abdichtung des Hüllrohrs (10) an dem aus dem Bohrloch (3) ragenden Ende (14) wenigstens ein Sicherungs- bzw. Klemmelement (18) vorgesehen ist.
- Vorrichtung nach Anspruch 10, dadurch gekennzeichnet, daß das Sicherungs- bzw. Klemmelement (18) von einem das Hüllrohr (10) umgebenden Ringelement gebildet ist, welches an seiner Außenfläche eine sich konisch verjüngende Oberfläche (19) aufweist und mit einer komplementären, sich konisch verjüngenden Innenfläche (20) des Festlegungselements (15) bei einer Bewegung des Hüllrohrs (10) entgegen der Bohrrichtung (9) zusammenwirkt und eine Bewegung des Hüllrohrs (10) entgegen der Bohrrichtung (9) verhindert.
- Vorrichtung nach einem der Ansprüche 6 bis 11, dadurch gekennzeichnet, daß das Bohrgestänge (2) von der Bohrkrone (1) in an sich bekannter Weise lösbar und aus dem Bohrloch (3) entfernbar ist.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT02791587T ATE307265T1 (de) | 2001-11-30 | 2002-11-26 | Verfahren und vorrichtung zum bohren von löchern |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT18752001 | 2001-11-30 | ||
AT18752001A AT411383B (de) | 2001-11-30 | 2001-11-30 | Verfahren und vorrichtung zum bohren von löchern |
PCT/AT2002/000330 WO2003046330A1 (de) | 2001-11-30 | 2002-11-26 | Verfahren und vorrichtung zum bohren von löchern |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1448866A1 EP1448866A1 (de) | 2004-08-25 |
EP1448866B1 true EP1448866B1 (de) | 2005-10-19 |
Family
ID=3689195
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02791587A Expired - Lifetime EP1448866B1 (de) | 2001-11-30 | 2002-11-26 | Verfahren und vorrichtung zum bohren von löchern |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1448866B1 (de) |
AT (1) | AT411383B (de) |
AU (1) | AU2002357954A1 (de) |
DE (1) | DE50204631D1 (de) |
TW (1) | TW200303955A (de) |
WO (1) | WO2003046330A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111188575A (zh) * | 2020-01-15 | 2020-05-22 | 张百双 | 一种旋转导向钻井装置 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT412802B (de) * | 2003-10-01 | 2005-07-25 | Techmo Entw & Vertriebs Gmbh | Verfahren und vorrichtung zum bohren von löchern in boden- oder gesteinsmaterial |
NO337771B1 (en) * | 2015-03-18 | 2016-06-20 | Resonator As | Percussive hammering assembly |
CN109098662B (zh) * | 2018-08-25 | 2020-02-21 | 西南石油大学 | 一种钻完井管道下料装置 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3905106C2 (de) * | 1989-02-20 | 1994-08-11 | Fritz Zimmermann Masch U Appar | Tiefloch-Bohrhammer mit Wasserspüleinrichtung |
DE19831009C2 (de) * | 1998-07-10 | 2000-05-18 | Btd Bohrtechnik Gmbh | Bohrvorrichtung |
JP2002525456A (ja) * | 1998-08-21 | 2002-08-13 | テヒモ・エントビツクルングス−ウント・フエルトリーブス・ゲー・エム・ベー・ハー | 土壌あるいは岩石物質に穴をあけかつ排液する装置 |
AU2910899A (en) * | 1999-03-18 | 2000-10-09 | Alwag Tunnelausbau Gesellschaft Mbh | Device for drilling bore holes |
-
2001
- 2001-11-30 AT AT18752001A patent/AT411383B/de not_active IP Right Cessation
-
2002
- 2002-11-26 DE DE50204631T patent/DE50204631D1/de not_active Expired - Lifetime
- 2002-11-26 AU AU2002357954A patent/AU2002357954A1/en not_active Abandoned
- 2002-11-26 WO PCT/AT2002/000330 patent/WO2003046330A1/de not_active Application Discontinuation
- 2002-11-26 EP EP02791587A patent/EP1448866B1/de not_active Expired - Lifetime
- 2002-11-27 TW TW91134409A patent/TW200303955A/zh unknown
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111188575A (zh) * | 2020-01-15 | 2020-05-22 | 张百双 | 一种旋转导向钻井装置 |
CN111188575B (zh) * | 2020-01-15 | 2021-06-04 | 大庆明悦石油科技有限公司 | 一种旋转导向钻井装置 |
Also Published As
Publication number | Publication date |
---|---|
DE50204631D1 (de) | 2006-03-02 |
TW200303955A (en) | 2003-09-16 |
WO2003046330A1 (de) | 2003-06-05 |
EP1448866A1 (de) | 2004-08-25 |
AT411383B (de) | 2003-12-29 |
AU2002357954A1 (en) | 2003-06-10 |
ATA18752001A (de) | 2003-05-15 |
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