EP2447462A1 - Procédé d'introduction souterraine d'une conduite - Google Patents

Procédé d'introduction souterraine d'une conduite Download PDF

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Publication number
EP2447462A1
EP2447462A1 EP10014133A EP10014133A EP2447462A1 EP 2447462 A1 EP2447462 A1 EP 2447462A1 EP 10014133 A EP10014133 A EP 10014133A EP 10014133 A EP10014133 A EP 10014133A EP 2447462 A1 EP2447462 A1 EP 2447462A1
Authority
EP
European Patent Office
Prior art keywords
target side
diameter
reamer
pipeline
scraper
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.)
Withdrawn
Application number
EP10014133A
Other languages
German (de)
English (en)
Inventor
Hans-Jürgen John
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.)
Tic Technology Innovation Consulting AG
Original Assignee
Tic Technology Innovation Consulting AG
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 Tic Technology Innovation Consulting AG filed Critical Tic Technology Innovation Consulting AG
Priority to EP10014133A priority Critical patent/EP2447462A1/fr
Priority to PCT/EP2011/069017 priority patent/WO2012056011A1/fr
Priority to CA2815739A priority patent/CA2815739A1/fr
Priority to AU2011322539A priority patent/AU2011322539A1/en
Publication of EP2447462A1 publication Critical patent/EP2447462A1/fr
Withdrawn legal-status Critical Current

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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
    • E21B7/046—Directional drilling horizontal drilling
    • 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
    • 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
    • E21B7/28—Enlarging drilled holes, e.g. by counterboring
    • E21B7/30—Enlarging drilled holes, e.g. by counterboring without earth removal

Definitions

  • the invention relates to a method for the underground introduction of a pipeline, which is particularly suitable for pipeline construction.
  • a pilot bore with a drill string is created from a start page to a target side.
  • a so-called reamer is mounted on the drill head or the drill bit.
  • This reamer is now pulled to the starting side in a rotating manner, whereby a suitable drilling fluid (for example bentonite) escapes from the boom tip under pressure, which on the one hand releases the existing soil and on the other hand supports the resulting borehole against collapse.
  • a suitable drilling fluid for example bentonite
  • the clearances are repeated with larger and larger scrapers until the hole is made in the desired size.
  • the created drill hole diameter is considerably larger than the diameter of the product tubing to be introduced later. The considerable excess diameter is necessary to reduce the frictional forces during Einbringvorgang.
  • the lubricating action of a bentonite suspension, on the one hand, and the floating of the product tubing with low skin friction on the borehole wall, on the other hand, require a spacious distance from the pipe wall to the borehole wall.
  • a pipeline with a predetermined diameter is introduced underground between a starting side and a target side.
  • a pilot hole is created, with a drill bit (preferably with a drill bit) being advanced from the start page to the landing page by means of a drill string.
  • a so-called HDD rig can be used, as it is known from HDD methods and which is built on the start page.
  • the HDD rig can be used to rotate the drill pipe, propel it towards the landing page, and move it back toward the home page as needed.
  • next steps are optional, if the pilot hole is not in a single step to the desired final diameter (which is at least as large as the diameter of the pipeline) to be expanded.
  • the pilot well is increased in one or more steps by means of a scraper moving from the target side to the home using the drill string to a diameter of the well that is smaller than the final diameter of the well, as further explained below.
  • the drill string After creating the pilot hole or after performing the optional process steps, the drill string extends to the target side.
  • a reamer designed for the final diameter of the borehole is now mounted, e.g. at the drill head or at the end of the drill string.
  • the previously prepared or parallel to the previous process steps on the target side pipe is coupled.
  • the purpose of a coupling device between the reamer and the end of the pipeline. Then the scraper and the pipeline are moved from the landing page to the home page. The reamer enlarges the wellbore to the final diameter and the tubing comes to rest in the wellbore.
  • Scavengers are also used in HDD processes.
  • a scraper can be used to clear a not too hard ground.
  • the scraper is rotated when moving from the target side to the home using the drill string.
  • the process flow is usually greatly facilitated if, when moving the reamer from the target side to the home, a drilling fluid is introduced into the wellbore, e.g. via arranged on the reamer nozzles.
  • the drilling fluid preferably has a bentonite suspension.
  • the intermediate steps already indicated can be performed.
  • a reamer is drawn from the target side to the start page by means of the drill string, the reamer enlarges the pilot hole.
  • This reamer provides a hole diameter that is smaller than the final diameter.
  • the drill string is again advanced to the target side and then an enlarged scraper is pulled from the target side to the start by the drill string, the enlarged scraper being the one created so far Bore further enlarged. If appropriate, this step is repeated once or several times with increasingly enlarged scrapers.
  • the drill string is advanced again to the target side to assume the home position required for the previously discussed steps of creating the final diameter of the wellbore and for introducing the tubing into the wellbore.
  • a larger reamer is preferably mounted each time.
  • an adjustable reamer which can possibly even be adjusted so far that it is designed for the final diameter. If a reamer is designed for a specific diameter, it does not necessarily mean that he himself must have that diameter. The reamer may also be smaller because of the effect of the drilling fluid.
  • the borehole will have a smaller diameter than the tubing prior to use of the final diameter scraper.
  • applications are also conceivable in which the borehole is widened so far that its diameter is already greater.
  • the pipeline is advanced from the target side to the starting side using a sliding device arranged on the target side.
  • suitable sliding devices eg "Pipethruster”
  • Pipethruster can basically exert high shear forces, for example when a hydraulic device by means of a coat-like sleeve on the outer wall of the prepared pipeline attacks.
  • the pipeline is tension resistant and relatively easy to move through the well, it is also conceivable to pull the pipeline from the target side to the home using the drill string.
  • the coupling device preferably has a rotary coupling and also means for engaging the end of the pipeline.
  • the tubing should not rotate about its longitudinal axis when it is inserted into the ground while the reamer is rotating. To compensate, the rotary joint is used.
  • a support shell may be carried in the space between the reamer and the end of the tubing to prevent a drilled hole.
  • the diameter of the support jacket is adapted to the diameter of the pipeline, e.g. the same size or slightly larger.
  • the pipeline is prepared at the target side before moving into the wellbore.
  • it can already be completely prepared, for example, welded together from individual tubes and if necessary provided with a corrosion protection, and also be tested.
  • the pipeline can be stored on the destination side eg on a roller conveyor.
  • the pipe can be used for the transport of media, but also designed as a conduit, eg for later retraction of cables.
  • the method according to the invention which can be called HDJ ("Horizontal Directional Jacking") method, combines the advantages of the HDD method and the "EasyLong” method.
  • the diameter of the borehole needs only to be slightly larger than the diameter of the pipeline to be introduced, since a lubricating film (for example of bentonite suspension) is generally sufficient to reduce skin friction.
  • the HDJ process is more economical than the "EasyLong” process and safer and more ecological than the HDD process.
  • FIGS. 1 to 3 different phases are shown in the implementation of an embodiment of a method for underground insertion of a pipeline in a schematic longitudinal section.
  • FIG. 1 The arrangement of the construction site is over FIG. 1 seen.
  • a pipeline under a body of water 6 shall be installed.
  • a HDD rig 10 is constructed and anchored.
  • HDD rigs are used in HDD processes and are known to the person skilled in the art. With the help of a HDD rig you can turn a drill pipe and move it forward and pull it down.
  • a pilot bore 16 is created with the aid of the HDD rig 10, a drill pipe 12 driven therefrom and a drill head 14 mounted at the end of the drill string 12, which leads to the target side 4 and determines the later course of the pipeline to be introduced.
  • the drill head 14 is controllable so that the pilot bore 16 can be guided along a curved and predetermined path. In the in FIG. 1 As shown, the drill head 14 has arrived just below the water body 6.
  • the pipeline to be inserted is prepared at the target side 4.
  • the pipe 20 is welded together from steel pipe sections, the area of the welds is provided with a corrosion protection, and a leak test is performed. Through the pipe 20, a liquid or gaseous medium can later be transported.
  • Other designs, e.g. as a conduit or other material, are also conceivable.
  • the pipe 20 is mounted on a roller conveyor 22. Furthermore, a so-called Pipethruster is already brought into position.
  • the Pipethruster has a pipe clamp 24 which acts on the outside of the pipe 20 via a kind of sleeve and can exert large forces.
  • the pipe clamping device 24 is via feed cylinder 26 with an in FIG. 1 Anchoring 28 shown schematically connected. By actuating the feed cylinder 26, the pipeline 20 can later be advanced in the direction of the starting side 2.
  • FIG. 2 a state is shown in which the pilot hole 16 is completed and after the drill head 14 has arrived at the target side 4.
  • the drill head 14 is then removed from the drill string 12, and instead a reamer 30 is mounted at the forward end of the drill string 12.
  • the reamer 30 is then connected by means of a coupling device to the end of the pipeline 20.
  • the reamer 30 and the coupling device are in FIG. 4 shown in enlarged view (wherein the coupling device is designed slightly different than according to the FIGS. 1 to 3 ).
  • Scavengers such as the scraper 30 are known in the art of HDD method ago.
  • the reamer 30 has a larger diameter than the drill head 14.
  • the reamer 30 is mounted instead of the drill head 14 at the end of the drill string 12.
  • the drill head 14 left on the drill pipe 12 and the reamer 30 is attached to the drill head 14.
  • conically shaped attack side 32 of the reamer 30 can widen the borehole when it is rotated by means of the drill string 12 and pulled to the home page 2.
  • a bentonite suspension which facilitates the widening of the borehole, solidifies the wall of the borehole and at the same time serves as a lubricating film.
  • the reamer 30 is connected to the pipeline 20 via the coupling device.
  • this coupling device has a hinge part 34, a rotary coupling 36, a further hinge part 38 and a Switzerlandfact 40.
  • the Switzerlandfact 40 is mounted at the end of the pipe 20 and is removed later, when the pipe 20 is finished laying.
  • FIG. 2 Thus, the condition of the construction site immediately after the assembly of the reamer 30 and the coupling device 34, 36, 38, 40. Now the reamer 30 is pulled over the drill pipe 12 by means of the HDD rig 10 in the direction of home 2, while the Pipethruster in Action is set and simultaneously with the help of the feed cylinder 26, the pipeline 20 advances. In the exemplary embodiment, the movements of the drill string 12 and the feed cylinder 26 are synchronized to avoid unnecessary tensile or compressive forces in the drill pipe 12 and the pipe 20.
  • the FIG. 3 shows a state in which the reamer 30 has arrived under the water 6. The area of the reamer 30 with the end of the pipeline 20 is, as already explained, in FIG. 4 shown in enlarged view.
  • the reamer 30 While the reamer 30 is rotated by the drill string 12 and the drilling fluid exits the attack side 32 of the reamer 30, the reamer 30 expands the well bore 50, generally designated 50.
  • the pilot bore 16, the wall 52 of which has a first diameter in the exemplary embodiment increases to a borehole with a wall 54 which already has the desired final diameter.
  • the reamer acts in particular at a transition zone 56.
  • the rotary coupling 36 ensures that the reamer 30 can rotate easily, while the pipe 20 performs no rotational movement.
  • the drilling fluid also passes into a gap 58 between the conduit 20 and the wall 54 of the borehole 50 and forms there a kind of lubricating film, which significantly reduces the frictional forces between the pipeline 20 and the wall 54 of the borehole 50.
  • the reamer 30 is retracted to the home page 2 while the tubing 20 is advanced so that the tubing 20 comes to lie in the final path in the desired path.
  • the soil in particular after the action of the drilling mud, is so strong that the borehole 50 does not collapse in the area between the reamer 30 and the draw receptacle 40 of the pipeline 20.
  • a support shell can be arranged in this zone, whose outer diameter corresponds to the final diameter of the borehole 50 or has a slightly smaller diameter. The support jacket prevents the borehole 50 occurs in this critical area, and is moved with the pipe 20 to the home 2.
  • the pilot bore 16 is widened by means of the reamer 30 in one step to the required for the pipeline 20 end diameter (wall 54).
  • intermediate steps can also be carried out.
  • a reamer with a smaller diameter than that of the reamer 30 is mounted after creating the pilot hole 16 and pulled without the pipe 20 to the home page 2, wherein the borehole 50 is widened.
  • the drill pipe 12 is moved by means of the HDD rig 10 back to the landing page 4.
  • a larger reamer can be set, which is still smaller than the reamer 30, to perform a further intermediate step for widening the wellbore 50. If necessary, this process is repeated once or more, until finally the reamer 30, which produces the desired final diameter of the wellbore 50, can be mounted.

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  • 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)
  • Excavating Of Shafts Or Tunnels (AREA)
EP10014133A 2010-10-29 2010-10-29 Procédé d'introduction souterraine d'une conduite Withdrawn EP2447462A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP10014133A EP2447462A1 (fr) 2010-10-29 2010-10-29 Procédé d'introduction souterraine d'une conduite
PCT/EP2011/069017 WO2012056011A1 (fr) 2010-10-29 2011-10-28 Procédé d'introduction sous terre d'une canalisation
CA2815739A CA2815739A1 (fr) 2010-10-29 2011-10-28 Procede d'introduction sous terre d'une canalisation
AU2011322539A AU2011322539A1 (en) 2010-10-29 2011-10-28 Method for the underground installation of a pipe.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP10014133A EP2447462A1 (fr) 2010-10-29 2010-10-29 Procédé d'introduction souterraine d'une conduite

Publications (1)

Publication Number Publication Date
EP2447462A1 true EP2447462A1 (fr) 2012-05-02

Family

ID=43646450

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10014133A Withdrawn EP2447462A1 (fr) 2010-10-29 2010-10-29 Procédé d'introduction souterraine d'une conduite

Country Status (4)

Country Link
EP (1) EP2447462A1 (fr)
AU (1) AU2011322539A1 (fr)
CA (1) CA2815739A1 (fr)
WO (1) WO2012056011A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013111350A1 (de) * 2013-10-15 2015-04-16 TERRA AG für Tiefbautechnik Aufweitwerkzeug und Vorrichtung zum Aufweiten einer im Erdreich vorhandenen Durchgangsöffnung
DE102013021889A1 (de) 2013-12-23 2015-06-25 Herrenknecht Ag Verfahren und Vorrichtung zum Verlegen grabenlosen Verlegen von Rohrleitungen
EP3940192A1 (fr) * 2020-07-17 2022-01-19 Max Wild GmbH Procédé de préparation ou de production un forage dans un sol

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2970559T3 (es) * 2021-04-28 2024-05-29 Lmr Drilling Gmbh Método para la colocación de tuberías subterráneas
CN114135229B (zh) * 2021-12-02 2023-06-09 山东科技大学 一种无开挖电缆保护管道自动放置支护装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4679637A (en) 1985-05-14 1987-07-14 Cherrington Martin D Apparatus and method for forming an enlarged underground arcuate bore and installing a conduit therein
EP0291193A1 (fr) * 1987-05-13 1988-11-17 Cherrington Corporation Procédé pour cimenter une conduite de production dans un trou courbé souterrain
US5375945A (en) 1993-02-12 1994-12-27 Cherrington Corporation Method and apparatus for thrusting a pipeline into bore hole
US20030152428A1 (en) * 2001-12-20 2003-08-14 Wentworth Steven W. Method and apparatus for on-grade boring
US20050034896A1 (en) * 2003-03-26 2005-02-17 Toyohiko Youan Pipe burying method
EP1802844B1 (fr) 2005-05-07 2009-04-08 Meyer & John GmbH & Co. KG Procede de pose de conduites sans tranchee

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT959099B (it) * 1972-06-09 1973-11-10 Dolza C Macchina spingitubi per trivella zioni orizzontali
CN101223334B (zh) * 2005-07-20 2012-03-21 Cmte开发有限公司 盘管钻井系统

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4679637A (en) 1985-05-14 1987-07-14 Cherrington Martin D Apparatus and method for forming an enlarged underground arcuate bore and installing a conduit therein
EP0291193A1 (fr) * 1987-05-13 1988-11-17 Cherrington Corporation Procédé pour cimenter une conduite de production dans un trou courbé souterrain
US5375945A (en) 1993-02-12 1994-12-27 Cherrington Corporation Method and apparatus for thrusting a pipeline into bore hole
US20030152428A1 (en) * 2001-12-20 2003-08-14 Wentworth Steven W. Method and apparatus for on-grade boring
US20050034896A1 (en) * 2003-03-26 2005-02-17 Toyohiko Youan Pipe burying method
EP1802844B1 (fr) 2005-05-07 2009-04-08 Meyer & John GmbH & Co. KG Procede de pose de conduites sans tranchee

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013111350A1 (de) * 2013-10-15 2015-04-16 TERRA AG für Tiefbautechnik Aufweitwerkzeug und Vorrichtung zum Aufweiten einer im Erdreich vorhandenen Durchgangsöffnung
DE102013021889A1 (de) 2013-12-23 2015-06-25 Herrenknecht Ag Verfahren und Vorrichtung zum Verlegen grabenlosen Verlegen von Rohrleitungen
RU2645685C2 (ru) * 2013-12-23 2018-02-27 Херренкнехт Аг Способ и устройство для бестраншейной укладки трубопроводов
US10443761B2 (en) 2013-12-23 2019-10-15 Herrenknecht Ag Method and device for trenchless pipe laying
EP3940192A1 (fr) * 2020-07-17 2022-01-19 Max Wild GmbH Procédé de préparation ou de production un forage dans un sol

Also Published As

Publication number Publication date
WO2012056011A1 (fr) 2012-05-03
AU2011322539A1 (en) 2013-06-06
CA2815739A1 (fr) 2012-05-03

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