EP1491716A2 - Méthode de forage et outil de forage humide - Google Patents

Méthode de forage et outil de forage humide Download PDF

Info

Publication number
EP1491716A2
EP1491716A2 EP04012798A EP04012798A EP1491716A2 EP 1491716 A2 EP1491716 A2 EP 1491716A2 EP 04012798 A EP04012798 A EP 04012798A EP 04012798 A EP04012798 A EP 04012798A EP 1491716 A2 EP1491716 A2 EP 1491716A2
Authority
EP
European Patent Office
Prior art keywords
drilling tool
wet
dome
wet drilling
borehole
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
Application number
EP04012798A
Other languages
German (de)
English (en)
Other versions
EP1491716B1 (fr
EP1491716A3 (fr
Inventor
Erwin Emil Dipl.-Ing. Stötzer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bauer Maschinen GmbH
Original Assignee
Bauer Maschinen GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Bauer Maschinen GmbH filed Critical Bauer Maschinen GmbH
Publication of EP1491716A2 publication Critical patent/EP1491716A2/fr
Publication of EP1491716A3 publication Critical patent/EP1491716A3/fr
Application granted granted Critical
Publication of EP1491716B1 publication Critical patent/EP1491716B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • 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
    • E21B21/002—Down-hole drilling fluid separation systems

Definitions

  • the invention relates to a method for drilling a hole in the ground according to the preamble of claim 1, a wet drilling tool according to the preamble of claim 8 and a drilling system according to the preamble of claim 20.
  • the wet drilling process means more effort in terms of construction site equipment and limited mobility of the drilling rig, wherever possible, the dry drilling process is used with a drilling rig on caterpillars. However, this method has its limits in the presence of particularly hard geologies. Compared to wet drilling, the drilling performance drops and the wear of the drilling tool increases considerably.
  • DE 197 02 533 A1 A generic prior art is known from DE 197 02 533 A1.
  • the drill bit is flushed with either air or a rinsing liquid.
  • DE 197 02 533 A1 teaches that the drilling bit is supplied with a flushing fluid from a reservoir arranged outside the borehole via a line.
  • a fluid flow is generated using a peristaltic pump.
  • Such a known device requires a comparatively complex arrangement of lines, pumps and fluid stores inside and outside the borehole.
  • the object of the invention is to provide a method for drilling a hole in the ground, a wet drilling tool and a drilling system, which enable a wet drilling method to be carried out in a simplified manner.
  • the object is achieved by a method for drilling a bore with the features of claim 1, a wet drilling tool with the features of claim 8 and a drilling system with the features of claim 20.
  • Preferred embodiments of the invention are set out in the respective dependent claims.
  • the drilling method according to the invention is characterized in that the wet drilling tool has a pump device, through which fluid from the filling area is caused to flow, which conveys the cuttings that are produced into the collecting container.
  • a basic idea of the invention is to generate the fluid flow in the borehole required for a wet drilling method through the drilling tool itself.
  • the wet drilling tool is provided with an independent pump device, which draws in fluid in the borehole or sets it in flow so that the removal area is washed around and the resulting cuttings are conveyed into the collecting container on the drilling tool.
  • the pump energy is preferably generated by rotating and / or Transfer the stroke movement of the drill pipe to the drilling tool.
  • a preferred embodiment of the method according to the invention consists in that the fluid flow is generated by a change in volume of a work space arranged in the filling area, the work space in particular being at least partially enclosed by the wet drilling tool. This change in volume thus produces a targeted displacement flow of the liquid in the borehole in a given working space.
  • the working space is formed between the wet drilling tool and the soil material present on the wet drilling tool, in particular a drilling core.
  • a telescopic rod for example a telescopic Kelly rod or a lifting cylinder
  • the change in volume in the working space is caused by a lifting movement of the wet drilling tool in the borehole.
  • the change in volume in the working space is caused by a rotary movement of a drill rod arranged on the wet drilling tool relative to the wet drilling tool.
  • a type of displacement piston can be adjusted by a rotary movement, which is preferably opposite to the rotation in drilling operation.
  • the drilling method according to the invention cannot only be a pure wet drilling. Rather, it is an embodiment according to the invention that, in order to produce the borehole in the ground, drilling is first carried out in a dry drilling method using a dry drilling tool, and in particular when the rock having a higher hardness is reached, the dry drilling tool is removed from the borehole and the borehole is then at least partially filled with a fluid and the drilling with the wet drilling tool is advanced in a wet drilling process. With this method you can always work with the cheapest drilling method depending on the geology of the soil.
  • the wet drilling tool can also be designed and used as a dry drilling tool, a wet drilling operation only being set after the liquid has been poured into the borehole.
  • a separate dry drilling tool and a separate wet drilling tool are used. It is provided that the dry boring machine and the wet drilling tool are driven by the same drill string to which the dry drilling tool and the wet drilling tool are interchangeably attached. When a hard rock layer is reached, the dry drilling tool with the drill pipe is pulled out of the borehole and replaced by a wet drilling tool.
  • the wet drilling tool according to the invention is characterized in that a pump device is provided, by means of which fluid can be set into a flow from a filling area of a borehole, through which resulting cuttings can be conveyed into the collecting container.
  • the wet drilling tool according to the invention can be used for the wet drilling method described above, which results in the advantages set out above.
  • An embodiment according to the invention consists in that a casing tube is provided, on the underside of which a drill bit, in particular as a removal device, and on the top a lid with at least one passage device for the passage of a fluid are arranged, the lid and the casing enclosing an interior.
  • a passage device is provided in the cover, which allows fluid to pass from an area outside the borehole into the interior of the wet drilling tool.
  • the passage device can be configured by a valve member such that it only allows a fluid passage directed into the interior. When the direction of the fluid flow changes, however, the valve member closes automatically.
  • such an arrangement according to the invention enables the formation of a fluid circulation, in which fluid enters the interior from an area outside the wet drilling tool, flows downward in the interior of the wet drilling tool to the drill bit, flows around it and then upwards outside the wet drilling tool flows. Due to this cyclical flow, cuttings accumulating at the drill bit can be removed and from there transported upwards to the collecting container.
  • the valve member ensures that there is no fluid flow from the drill bit in the removal area into the interior and thus no cuttings accumulate in the interior.
  • a pumping action which maintains the circulating fluid flow, can be generated simply by rotating the wet drilling tool in drilling operation and / or a lifting movement of the wet drilling tool.
  • no pumps or accumulators arranged outside the borehole are necessary, which permits very simple and inexpensive drilling.
  • a drill according to the invention can be used both in vertical and in holes which are inclined towards the vertical, provided the drilling tool is surrounded by liquid.
  • the passage device in principle, it is possible to design the passage device as a simple hole in the cover. However, it is particularly preferred that the passage device has a tubular dome. Such a tubular dome allows inlet openings for the inlet of fluid into the interior to be arranged at a distance from the cover.
  • the inlet openings can be arranged in such a way that the fluid flow directed into the interior is withdrawn from the borehole at a point at which the contamination of the fluid located in the borehole by drilling cuttings is low. Due to sedimentation of the cuttings in the fluid, the contamination of the fluid generally decreases with increasing height in the borehole, so that the inlet openings are preferably arranged at a distance from the casing tube and from the cover.
  • the tubular dome advantageously has at least one lateral inlet opening.
  • the tubular dome is arranged coaxially to the casing tube on the cover and that a rod connection for attaching a drill pipe is provided on an upper side of the dome.
  • the dome serves both the supply of fluid and the transmission of torque from the drill pipe to the wet drilling tool. This enables a particularly inexpensive construction of the drill.
  • valve member can be designed in the form of any known check valve.
  • valve member has a spring and / or buoyancy-actuated flap. This enables a particularly inexpensive construction.
  • the buoyancy body can be filled with air or another medium that is lighter than the fluid. In this way, a secure closing and thus a good locking action of the flap can be ensured with a fluid flow directed out of the interior.
  • the spring-operated flap can be designed in such a way that it opens in a spring-loaded manner at a specific fluid pressure and then automatically closes again when the fluid pressure drops due to the spring preload.
  • valve member anywhere in the dome.
  • the valve member can be provided in the inlet opening of the tubular dome.
  • the valve member is provided in a cross section of the dome.
  • the valve member can be designed to be particularly simple and safe to block.
  • valve member is preferably provided on an underside of the dome.
  • the valve member is particularly easy to access for assembly and maintenance.
  • a valve member can be arranged in the cross section of the dome and at least one further valve member in the inlet opening. If several inlet openings are provided, a valve member is preferably provided in each inlet opening. With an arrangement of several valve members, a circulating fluid flow can be maintained in a particularly reliable manner.
  • the linkage In order to produce a strong pumping effect on the fluid, it can be advantageous for the linkage to have a piston element which can be moved in the dome.
  • the piston element preferably has a cross section which corresponds to an inner cross section of the dome.
  • the dome preferably has a circular inner cross section and also a circular one Outside cross section on.
  • the piston element can advantageously be moved in a longitudinal direction of the dome.
  • the piston element can be moved in the dome by rotating the drill pipe.
  • the piston element can be moved by reversing the direction of rotation of the drill pipe.
  • a rotation of the drill rod in a direction opposite to the direction of rotation of the drill can then advantageously bring about a downward and / or movement of the piston element towards the interior.
  • a renewed rotation of the drill pipe in the direction of rotation of the drill then initially causes the piston element to move back to the starting position before the core drill is rotated again.
  • valve members both in the cross section of the dome and in the inlet openings. This enables a particularly reliable pumping action to be achieved.
  • the pumping action generated by a piston element brings the liquid flow thus generated to the removal area and causes the drilling site to be flushed and the cuttings to be removed.
  • the drill pipe is provided in the form of a telescopic Kelly bar.
  • the dome is suitably designed as a cylindrical component.
  • the dome can be moved in and out of the casing tube.
  • Such an extension and retraction of the dome into the casing tube can be brought about in particular by rotating the drill pipe, advantageously rotating against the direction of drilling causes the retraction.
  • the valve member is suitably attached to the casing tube.
  • further valve members can also be provided in the inlet openings.
  • the extension and extension of the dome into the casing tube is preferably effected in the axial direction of the dome.
  • a piston surface with an outer cross-section is provided on the underside of the dome, which essentially corresponds to an inner cross-section of the casing tube.
  • the dome can then be provided as a piston rod with fluid supply and outlet openings.
  • the dome can then be suitably retractable into and out of the casing tube by rotating the drill pipe.
  • a valve member is suitably arranged on the casing tube and advantageously further valve members are also provided.
  • a particularly preferred development of the invention is characterized in that a collecting container for cuttings is provided on the top of the lid.
  • the collecting container can be a pot-like container which is delimited by the lid or base and a tubular wall.
  • a flow of fluid mixed with cuttings from the drill bit between the casing pipe and a wall of the borehole.
  • at least one flow channel is provided on the drill for the passage of fluid interspersed with cuttings.
  • a flow channel can be formed, for example, by providing a further tube coaxially with the casing tube. The flow channel is then formed between the jacket tube and the further tube.
  • the further pipe can be made smaller or larger in diameter than the jacket pipe.
  • the at least one inlet opening of the tubular dome is advantageously arranged outside the collecting container, in particular above it. In this way it can be achieved that only such fluid enters the inlet opening that is essentially free of cuttings.
  • a particle filter can also be provided on the at least one through opening, which makes it difficult for drill cuttings to pass through.
  • the drill is raised and lowered to generate the lifting movement of the wet drilling tool during a drilling process, automatically or triggered by an operator, as a function of time. Rotation of the drill can be selectively maintained or stopped during lifting and lowering.
  • a drilling rig according to the invention is characterized in that the previously described wet drilling tool is provided as the drilling tool.
  • FIGS. 1 and 2 A first embodiment of a wet drilling tool 10 according to the invention is shown in FIGS. 1 and 2.
  • the wet drilling tool 10 has a cylindrical jacket tube 15, at the lower end of which a drill bit 8 is arranged, which forms the removal region 17.
  • the drill bit 8 has five roller bits 18, which are arranged in a ring in the drill bit 8.
  • the casing tube 15 is closed by an annular cover 11.
  • a dome 20 is arranged centrally in the annular cover 11.
  • the dome 20 is cylindrical and enters the interior 3 of the wet drilling tool 10 through the cover 11 on its underside.
  • a rod connection 28 is provided for a rotationally fixed connection with a drill rod, not shown.
  • the collecting container 6 On the top of the lid 11 there is a collecting container 6 for receiving processed drilling cuttings.
  • the collecting container 6 is limited by the lid 11, the dome 20 and a cylindrical extension 16 of the tubular casing 15 and is pot-shaped with an annular cross section.
  • An essentially rectangular inlet opening 21 is provided on the side in the dome 20. The inlet opening 21, through which fluid can enter the dome 20 and from there into the interior 3 of the wet drilling tool 10, is formed above the collecting container 6.
  • a flap 25 is provided on the underside of the dome 20, which is shown in FIG. 1 in the open state and in FIG. 2 in the closed state.
  • the flap 25 is designed as a non-return element in such a way that it allows fluid flow directed into the interior 3 to pass, but blocks an oppositely directed fluid flow.
  • the flap 25 is designed as a circular plate which is articulated on one side by a hinge 26 on the dome 20. While the flap 25 completely covers the open underside of the dome 20 in the closed state, the flap 25 is inclined into the interior 3 of the wet drilling tool 10 in the open state.
  • the flap 25 has a buoyancy body 24 on the upper side.
  • FIGS. 1 and 2 The embodiment shown in FIGS. 1 and 2 is suitable for generating a fluid flow for conveying cuttings from the removal area 17 into the collecting container 6 during a lifting movement of the wet drilling tool 10 in the longitudinal direction of the casing tube 15.
  • the interior 3 of the wet drilling tool 10 forms a working space of a pump device.
  • a drill core (not shown) entering the interior 3 acts as a piston element, which causes a volume change in the fluid-filled interior 3.
  • the drilling core When lifting the wet drilling tool 10 in the longitudinal direction of the casing tube 15, the drilling core (not shown) is pulled out of the interior 3. Due to a resulting pressure drop in the interior 3, the flap 25 opens and fluid flows through the inlet opening 21 into the dome 20 and from there into the interior 3. When the wet drilling tool 10 is subsequently lowered, the drilling core (not shown) re-enters the interior 3, so that the fluid pressure in the interior 3 is increased. This closes the flap 25. Fluid, which is displaced from the interior 3 by the penetrating drill core, flows past the drill core to the drill bit 8, from where it transports cuttings along the casing tube 15 into the collecting container 6.
  • FIGS. 3 and 4 Further exemplary embodiments of wet drilling tools 10 according to the invention are shown in FIGS. 3 and 4. Components with the same function are designated with the same reference numerals as in FIGS. 1 and 2 and are not at this point described in more detail.
  • the exemplary embodiment in FIG. 3 differs from that described above in that the dome 20 can be moved into and out of the interior 3 of the wet drilling tool 10.
  • a threaded sleeve 36 is arranged centrally on the cover 11.
  • the inside of the threaded sleeve 36 has a screw thread which corresponds to a thread formed on the outside of the dome 20.
  • the retraction of the dome 20 is limited by an annular upper stop 37, the extension of the dome 20 by an annular lower stop 38.
  • the rotation of the dome 20 is generated by a drill rod, not shown, which is connected to the dome in a rotationally fixed manner via the rod connection 28.
  • a change in volume of the working space arranged in the interior 3 and thus a pumping action for the fluid can be brought about by a rotary movement of the drill pipe, not shown.
  • the dome 20 with the flap 25 arranged on the bottom acts as a piston element.
  • FIG. 4 differs from that of FIG. 3 in that an annular piston surface 31 is arranged on the underside of the dome 20.
  • the inner circumference of the annular piston surface 31 corresponds to the outer circumference of the cylindrical dome 20.
  • a cylindrical ring element 32 is arranged on the outer circumference of the piston surface 31 and bears against a cylindrical inner tube 14.
  • the inner tube 14 is arranged in the interior of the casing tube 15 and concentric to this.
  • a lower stop 38 is not provided in the embodiment shown in FIG. 4. Its function is taken over by the piston surface 31.
  • the working space is formed inside the inner tube 14.
  • a Rotation of the dome 20 relative to the casing tube 15 causes an upward or downward movement of the dome 20 and the piston surface 31 arranged thereon relative to the interior 3, depending on the direction of rotation, which results in a change in volume of the working space and thus a pumping effect.
  • a flow channel is formed for a flow of fluid mixed with cuttings directed from the removal area 17 to the collecting container 6.

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Auxiliary Devices For Machine Tools (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
EP04012798A 2003-06-25 2004-05-28 Méthode de forage et outil de forage humide Expired - Lifetime EP1491716B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10328609A DE10328609B3 (de) 2003-06-25 2003-06-25 Nassbohrwerkzeug, Bohranlage und Verfahren zum Niederbringen einer Bohrung im Boden
DE10328609 2003-06-25

Publications (3)

Publication Number Publication Date
EP1491716A2 true EP1491716A2 (fr) 2004-12-29
EP1491716A3 EP1491716A3 (fr) 2005-04-27
EP1491716B1 EP1491716B1 (fr) 2006-07-19

Family

ID=33394979

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04012798A Expired - Lifetime EP1491716B1 (fr) 2003-06-25 2004-05-28 Méthode de forage et outil de forage humide

Country Status (12)

Country Link
US (1) US7234538B2 (fr)
EP (1) EP1491716B1 (fr)
JP (1) JP3953475B2 (fr)
KR (1) KR100636594B1 (fr)
CN (1) CN1311141C (fr)
AT (1) ATE333566T1 (fr)
DE (2) DE10328609B3 (fr)
ES (1) ES2268541T3 (fr)
HK (1) HK1074068A1 (fr)
RU (1) RU2282012C2 (fr)
SG (1) SG135036A1 (fr)
TW (1) TWI235783B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2743403A1 (fr) * 2012-12-12 2014-06-18 BAUER Maschinen GmbH Dispositif et procédé destinés à l'établissement d'un élément de fondation
CN104196450A (zh) * 2014-08-25 2014-12-10 江苏长城石油装备制造有限公司 一种用于软地质层加固的改进钻具
EP2998037A1 (fr) 2014-09-19 2016-03-23 Bauer Spezialtiefbau GmbH Dispositif destiné au nettoyage d'une semelle d'un trou de forage et procédé de création d'un élément de fondation

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4677330B2 (ja) * 2005-11-28 2011-04-27 財団法人電力中央研究所 岩盤の円柱試験体作製装置
CN102444388B (zh) * 2011-11-17 2014-04-02 杭州电子科技大学 旋转式软岩层钻具取芯衬管下端口的岩心防漏器
US20130213717A1 (en) * 2012-02-22 2013-08-22 Kennametal Inc. Stepped drill bit assembly
RU2652908C2 (ru) * 2016-07-04 2018-05-03 Артем Юрьевич Верзаков Буровая установка
CN106677733A (zh) * 2017-01-18 2017-05-17 深圳市建设（集团）有限公司 一种带钻渣打捞装置的大直径钻孔钻头
CN109538117A (zh) * 2017-03-02 2019-03-29 合肥智慧龙图腾知识产权股份有限公司 一种水利工程施工用钻孔机
CN106988682B (zh) * 2017-04-19 2019-04-23 中海石油(中国)有限公司 一种自升式钻井平台桩腿主动刺穿钻孔专用钻头及方法
RU2679424C1 (ru) * 2018-02-17 2019-02-08 Александр Васильевич Селиванов Буровая установка горизонтального бурения
CN109500767B (zh) * 2018-06-29 2021-07-23 蔚来(安徽)控股有限公司 失效螺栓钻除工装组件及其使用方法、维护套件
CN111560949A (zh) * 2020-06-08 2020-08-21 浙江万里建设工程有限公司 一种灌注桩施工方法
CN113565456A (zh) * 2021-07-30 2021-10-29 江苏省苏中建设集团股份有限公司 水中桩基用泵循环装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19702533A1 (de) 1997-01-24 1998-07-30 Bauer Spezialtiefbau Bohrvorrichtung und Drehmomentstütze für eine Bohrvorrichtung

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US618332A (en) * 1899-01-24 Power dredging-machine
US1542172A (en) * 1922-02-27 1925-06-16 Warren B Reed Drilling apparatus
US2239610A (en) * 1939-10-02 1941-04-22 Albert K B Lyman Jetting apparatus
US2329461A (en) * 1942-01-12 1943-09-14 Alvy K Flynn Mud trap drilling bit
US3185226A (en) * 1959-03-17 1965-05-25 Robbins Richard James Shaft sinking apparatus
US3430448A (en) * 1967-07-12 1969-03-04 Case Foundation Co Apparatus and method for removing cuttings
US5735356A (en) * 1996-06-06 1998-04-07 Boulard; Victor Well boring method and apparatus
DE19626589C1 (de) * 1996-07-02 1998-02-12 Wirth Co Kg Masch Bohr Verfahren zum Niederbringen von Bohrlöchern im Lockergestein und Bohrwerkzeug zur Anwendung des Verfahrens
DE19859666C2 (de) * 1998-09-01 2001-02-15 Bilfinger Berger Bau Vorrichtung zum Fördern von Bodenmaterial aus einem mit Flüssigkeit gefüllten Bohrloch
JP4053297B2 (ja) * 2001-04-11 2008-02-27 三菱マテリアル株式会社 研削材及びそれを用いた穿孔工法

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19702533A1 (de) 1997-01-24 1998-07-30 Bauer Spezialtiefbau Bohrvorrichtung und Drehmomentstütze für eine Bohrvorrichtung

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2743403A1 (fr) * 2012-12-12 2014-06-18 BAUER Maschinen GmbH Dispositif et procédé destinés à l'établissement d'un élément de fondation
WO2014090490A1 (fr) * 2012-12-12 2014-06-19 Bauer Maschinen Gmbh Dispositif et procédé pour ériger un élément de fondation
AU2013357721B2 (en) * 2012-12-12 2017-08-31 Bauer Maschinen Gmbh Device and method for creating a foundation element
CN104196450A (zh) * 2014-08-25 2014-12-10 江苏长城石油装备制造有限公司 一种用于软地质层加固的改进钻具
EP2998037A1 (fr) 2014-09-19 2016-03-23 Bauer Spezialtiefbau GmbH Dispositif destiné au nettoyage d'une semelle d'un trou de forage et procédé de création d'un élément de fondation
US9512591B2 (en) 2014-09-19 2016-12-06 Bauer Spezialtiefbau Gmbh Cleaning device for cleaning a bottom of a borehole and method for creating a foundation element

Also Published As

Publication number Publication date
KR100636594B1 (ko) 2006-10-20
CN1576511A (zh) 2005-02-09
TWI235783B (en) 2005-07-11
KR20050001327A (ko) 2005-01-06
US20050023039A1 (en) 2005-02-03
SG135036A1 (en) 2007-09-28
ES2268541T3 (es) 2007-03-16
HK1074068A1 (en) 2005-10-28
JP3953475B2 (ja) 2007-08-08
DE502004000977D1 (de) 2006-08-31
JP2005016300A (ja) 2005-01-20
TW200506171A (en) 2005-02-16
RU2282012C2 (ru) 2006-08-20
CN1311141C (zh) 2007-04-18
US7234538B2 (en) 2007-06-26
DE10328609B3 (de) 2004-12-02
EP1491716B1 (fr) 2006-07-19
EP1491716A3 (fr) 2005-04-27
RU2004117327A (ru) 2005-11-20
ATE333566T1 (de) 2006-08-15

Similar Documents

Publication Publication Date Title
EP2085566B1 (fr) Installation de forage
EP0392544B1 (fr) Outil de forage
EP2562310B1 (fr) Agencement de forage sous-marin et procédé d'exécution d'un forage au fond de l'eau
DE2854461A1 (de) Ringbohrhammer
DE3641521A1 (de) Vorrichtung und verfahren zum durchdringen einer bohrlochwand in einem mit einer auskleidung versehenen bohrloch
DE10328609B3 (de) Nassbohrwerkzeug, Bohranlage und Verfahren zum Niederbringen einer Bohrung im Boden
DE1800387A1 (de) Bohrstrangausrichtvorrichtung
DE2540590A1 (de) Verfahren und vorrichtung zur durchfuehrung einer bohrung unterhalb eines hindernisses laengs einer bogenfoermigen bahn
EP2562348A1 (fr) Agencement de forage sous-marin et procédé d'exécution d'un forage
EP0953723A2 (fr) Dispositif d'élargissement
DE60317550T2 (de) Vorrichtung zur filtrierung von bohrschlamm
DE4333114C1 (de) Bohrvorrichtung mit teleskopierbarer Kellystange
EP0909362B1 (fr) Outil de forage pour procede de circulation inverse
EP0958446B1 (fr) Procede et dispositif pour forer des sondages, notamment des sondages de recherche et d'extraction
DE2824441C2 (de) Erdbohrer
EP0011287B1 (fr) Marteau de forage fond-de-trou pour la roche, la terre etc.
DE102010013724A1 (de) Horizontalbohrvorrichtung
AT393292B (de) Vorrichtung zur herstellung von durch zugabe von binde- oder abdichtemitteln verdichteten bodenabschnitten
CH704416A2 (de) Bohranlage zum Durchführen von Bohrungen im Erdreich.
DE3024102A1 (de) Exzenter-bohrvorrichtung
DE2052168A1 (de) Bohrverfahren und vorrichtung
DE202015102848U1 (de) Kernbohrwerkzeug zum Gesteinsbohren
EP1649128B1 (fr) Dispositif pour forer un trou dans la terre
DE941181C (de) Verfahren und Vorrichtung zum saugenden Spuelbohren
DE3622934C2 (de) Bohrgerät kompakter Bauweise

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL HR LT LV MK

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL HR LT LV MK

17P Request for examination filed

Effective date: 20050812

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060719

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060719

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060719

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060719

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20060719

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060719

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060719

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REF Corresponds to:

Ref document number: 502004000977

Country of ref document: DE

Date of ref document: 20060831

Kind code of ref document: P

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20060927

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20061019

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20061019

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20061019

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20061219

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

ET Fr: translation filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2268541

Country of ref document: ES

Kind code of ref document: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20070420

BERE Be: lapsed

Owner name: BAUER MASCHINEN G.M.B.H.

Effective date: 20070531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20061020

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060719

PGRI Patent reinstated in contracting state [announced from national office to epo]

Ref country code: IT

Effective date: 20081001

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080531

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080531

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20090529

Year of fee payment: 6

Ref country code: NL

Payment date: 20090527

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070528

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060719

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20090525

Year of fee payment: 6

Ref country code: CZ

Payment date: 20090430

Year of fee payment: 6

Ref country code: FR

Payment date: 20090525

Year of fee payment: 6

Ref country code: IT

Payment date: 20090515

Year of fee payment: 6

Ref country code: TR

Payment date: 20090504

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070120

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20090429

Year of fee payment: 6

REG Reference to a national code

Ref country code: NL

Ref legal event code: V1

Effective date: 20101201

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20100528

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100528

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20110131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CZ

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100528

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20101201

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100528

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100531

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20110711

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110629

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100528

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100529

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20110531

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100528

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502004000977

Country of ref document: DE

Effective date: 20121201

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20121201