EP0360321A1 - Process for laying a pipeline through an earth mass - Google Patents
Process for laying a pipeline through an earth mass Download PDFInfo
- Publication number
- EP0360321A1 EP0360321A1 EP89202233A EP89202233A EP0360321A1 EP 0360321 A1 EP0360321 A1 EP 0360321A1 EP 89202233 A EP89202233 A EP 89202233A EP 89202233 A EP89202233 A EP 89202233A EP 0360321 A1 EP0360321 A1 EP 0360321A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- reamer
- pipeline
- drill
- series
- earth
- 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- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 28
- 229910000278 bentonite Inorganic materials 0.000 claims abstract description 18
- 239000000440 bentonite Substances 0.000 claims abstract description 18
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims abstract description 18
- 230000008878 coupling Effects 0.000 claims abstract description 4
- 238000010168 coupling process Methods 0.000 claims abstract description 4
- 238000005859 coupling reaction Methods 0.000 claims abstract description 4
- 238000005553 drilling Methods 0.000 claims description 27
- 239000000203 mixture Substances 0.000 claims description 11
- 230000033228 biological regulation Effects 0.000 claims description 2
- 238000005259 measurement Methods 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 229940092782 bentonite Drugs 0.000 claims 2
- 235000012216 bentonite Nutrition 0.000 claims 2
- 238000005461 lubrication Methods 0.000 abstract description 3
- 239000000314 lubricant Substances 0.000 abstract 1
- 230000001050 lubricating effect Effects 0.000 description 3
- 239000010408 film Substances 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 239000008240 homogeneous mixture Substances 0.000 description 1
- 229940090441 infed Drugs 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000011144 upstream manufacturing 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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/08—Controlling or monitoring pressure or flow of drilling fluid, e.g. automatic filling of boreholes, automatic control of bottom pressure
-
- 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
- E21B21/003—Means for stopping loss of drilling fluid
-
- 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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/20—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/28—Enlarging drilled holes, e.g. by counterboring
Definitions
- the invention relates to a process for laying a pipeline through an earth mass, in which a drill having behind it a hollow drill series is moved along a predetermined path from one side of the earth mass to the other side through rotation and axial pressure, and using a drilling mud, then after reaching the other side of the earth mass a reamer is fastened to the drill series, the diameter of said reamer being greater than that of the drill series, and the pipeline to be laid is coupled to the reamer, after which the drill series, together with the reamer and the pipeline, is pulled through the earth mass with simultaneous rotation of the reamer in a direction opposite to the direction in which the drill series was moved, at least until the reamer with the start of the pipeline has come out of the earth mass, while the earth coming away during this treatment taking place under traction is discharged, and the outside of the pipeline is lubricated using drilling mud such as bentonite.
- drilling mud such as bentonite
- a reamer which is open is used, so that the loosened earth can go into the hollow of the reamer.
- Pressurized water is fed into this space via the drill series or via the pipeline during pulling and rotation of the reamer, said water forming a mixture with the loosened earth which is discharged through the discharge line.
- This discharge line can be a hose which extends through the pipeline to be laid.
- the loosened earth is only mixed with water, and thus not with bentonite, and this mixture is discharged separately through the pipeline and can be separated in a normal manner into earth and water by settling, as in the case of dredgings.
- the drilling mud such as the bentonite
- the supply line is therefore such that it takes into account the quantity for maintaining a lubricating film, which is determined by the advance of the pipeline into the earth mass. Bentonite does not emerge either at the beginning of the drill hole or at the end when it is reached. There is therefore no need to collect or treat bentonite.
- This balance can be controlled in a simple manner by regulation of the pulling force or the water pressure. Measurements of pulling force, water pressure and line resistance can be achieved in a simple manner.
- a pipe of greater diameter, and with a front end displacing the earth is disposed over the drill series, rotatably relative to the drill series, said pipe also being lubricated with drilling mud while it is penetrating into the earth mass, and said pipe being coupled to the reamer after reaching the other side and after removal of the drill series.
- the pilot hole can be cleared in this way and reinforced, the pipe of larger diameter here acting as a supporting pipe. Greater lengths can be spanned in this way.
- the invention also relates to a reamer for use in the process according to the invention, said reamer being provided, at the end of the drill series projecting into the reamer, with a hollow wheel, which is mounted in a freely rotatable manner on said end and has tangentially directed outflow apertures, and which is connected to the interior of the drill series.
- the tangentially outflowing water ensures the rotation of this wheel, and thus produces the one swirl of the earth loosened by the reamer with the water supplied, through which a more homogeneous mixture is obtained, which can be discharged through the discharge line.
- the reamer can be provided at the front, instream from the teeth, with a non-return protection device, such as a non-return valve, which opens inwards. If there is a sudden upset in the balance, this protection device prevents mixture from emerging from the reamer.
- a non-return protection device such as a non-return valve
- Figs. 1 and 2 show an earth mass 1 with a watercourse 2. Under the watercourse a pipeline has to be laid along the route indicated by the broken line 3. This is carried out by means of a drill series, comprising a drill head 4, which can be controlled in a known manner, and connected to it are the drill series pieces 5, comprising pipe lengths coupled to each other. One begins at 6, where constantly succeeding sections of the drill series are coupled to the series already placed in the ground and are driven in a thrusting and rotating manner by the device 7.
- a reamer 9 essentially comprising a cylindrical element which is provided at the front side with teeth 10 and has a connection in the rear wall for a discharge hose 11. The latter projects into the section of the pipeline 12 to be laid which is coupled rotatably to the reamer.
- the drill series After coupling with reamer and pipe section 12, the drill series is moved in the opposite direction, in the direction of the arrow 13, the reamer being rotated without the pipeline 12 being set in rotation.
- the section comprising a part of the drill series, the reamer and the front part of the pipeline is shown on a larger scale in Fig. 3.
- pressurized water is fed to the interior of the reamer, and this water is mixed there with the earth loosened by the teeth 10.
- Loosened earth and water form a mixture which is discharged via the discharge hose 11 through the pipeline.
- the reamer has a diameter which is equal to or slightly greater than the diameter of the pipeline.
- bentonite is fed in during this phase of the process according to the invention to the outside of the pipeline 12.
- This bentonite is applied in a thin layer, which serves solely for lubrication. This application takes place in such a quantity that no flow can take place in the lengthwise direction of the pipeline.
- the pulling force which is exerted by the device 7 on the drill series must be in balance here with the infed water pressure and the flow resistance in the discharge hose 11, so that at the mouth of the reamer at 10 a pressure prevails which prevents more earth than the loosened earth from entering the reamer, or mixture from coming out of the reamer in the wrong direction.
- the bentonite or drilling mud is supplied through the drill series 5 and transverse conduits 27, 28, which open out on the periphery of the reamer 9.
- This bentonite provides the lubricating film 29, just as in the embodiment of Fig. 3.
- Fig. 6 shows the drill 4 whose direction is adjustable.
- the drill series 5 connects to the drill.
- the drill is lubricated by feeding in drilling mud, such as bentonite, through the pipe 23, said drilling mud flowing back out round the drill series during drilling of the pilot hole.
- drilling mud such as bentonite
- Lubrication of the second pipe 21 takes place by feeding in drilling mud, such as bentonite, through the interior of the second pipe 21, during the progress of the pipe 21 said drilling mud coming out through apertures on the front and flowing back round the outside.
- drilling mud such as bentonite
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
Process for laying a pipeline (12) according to a curved path (3) through an earth mass(1) by first moving a drill(4) and a series of pipe sections (5) in one direction,mounting a reamer (9) to the drill and returnung in the opposite direction with the pipeline (12) connected to the reamer (9),said reamer being open at the front (10) but closed at the rear adjacent a rotational coupling with the pipeline(12) and at said closed end connected to a dichargeline(11).
During pulling of the reamer and pipeline by the drill-series water under pressure is fed to the reamer (9) and the pulling force is kept in balance with the waterpressure at the reamer (9) and the counterpressure in the dichargeline (11).
Lubrication of the outside of the pipeline is limited,sothat no lubricant,such as bentonite leaves the drilled hole.
Description
- The invention relates to a process for laying a pipeline through an earth mass, in which a drill having behind it a hollow drill series is moved along a predetermined path from one side of the earth mass to the other side through rotation and axial pressure, and using a drilling mud, then after reaching the other side of the earth mass a reamer is fastened to the drill series, the diameter of said reamer being greater than that of the drill series, and the pipeline to be laid is coupled to the reamer, after which the drill series, together with the reamer and the pipeline, is pulled through the earth mass with simultaneous rotation of the reamer in a direction opposite to the direction in which the drill series was moved, at least until the reamer with the start of the pipeline has come out of the earth mass, while the earth coming away during this treatment taking place under traction is discharged, and the outside of the pipeline is lubricated using drilling mud such as bentonite.
- Such a process is known from Dutch Patent Application 174293, laid open for inspection, and on which a patent has been granted. This application refers, on p. 1, para. 2, to US Patent Specification 3,878,903, from which it is known to carry out a drilling through an earth mass along a predetermined, in particular curved, path using a drill and drill series. After the mention of this US patent it is said that an effort was made by means of an experiment after drilling through the earth mass to couple a reamer of greater diameter and the pipeline to be laid to the drill series, and to pull this assembly of drill series, reamer and pipeline in the opposite direction through the earth mass. The problem occurred here that reamer and pipeline did not correctly follow the pilot hole made by the drill series.
- The above-mentioned Dutch Patent Application 174293 solves this problem by pushing the assembly of drill series, reamer and pipeline from the side of the pipeline along the path of the pilot hole.
- The object of the invention is then to produce a process by which the pulling of drill series, reamer and pipeline is actually possible, even when the path is curved.
- This object is achieved according to the invention in that a reamer is used open at the front in the direction of drilling, which reamer is closed at the coupling to the pipeline which permits a rotation between reamer and pipeline, and is connected there to a discharge line which runs via the pipeline, in that during the pulling via the drill series or the pipeline pressurized water is fed to the reamer, while the pulling force to be exerted on the drill series is kept in balance with the water pressure at the reamer plus the counterpressure in the discharge line running through the pipeline, and in that the outside of the pipeline is lubricated, via a supply line running through the pipeline or through the drill series and emerging near the reamer, only with such a small quantity of drilling mud, such as bentonite, that during the pulling of reamer and pipeline through the earth mass and after reaching the other side of the earth mass no amount of drilling mud of any significance comes out of the earth.
- While in the process known from Dutch Application 174293 use is made of a closed reamer, according to the invention a reamer which is open is used, so that the loosened earth can go into the hollow of the reamer. Pressurized water is fed into this space via the drill series or via the pipeline during pulling and rotation of the reamer, said water forming a mixture with the loosened earth which is discharged through the discharge line. This discharge line can be a hose which extends through the pipeline to be laid.
- In the process described in Patent Application 174293, in which the assembly of drill series, reamer and pipeline was pushed along the path of the pilot hole, the pipeline was lubricated through the infeed of drilling mud, such as bentonite, on the outside of the reamer, with the discharge of a mixture of loosened earth with bentonite either along the outside of the pipeline or fully or partially via a discharge line upstream of the reamer on the outside of the pipeline, and running through the pipeline. However, this means that a thick layer of drilling mud, mixed with earth, is always present around the pipeline, and this mixture has to be collected at the point where the pipeline is pressed into earth. This takes up a large amount of space, is a nuisance for the environment, and requires separation of the components for possible recycling of the bentonite. The infeed of the drilling mud takes place here at high pressure, which can be harmful to the environment. It is stated that when a pipeline is being laid under a riverbed there is a risk of the earth mass being broken through, which means that drilling mud can go into the watercourse.
- In the process according to the invention the loosened earth is only mixed with water, and thus not with bentonite, and this mixture is discharged separately through the pipeline and can be separated in a normal manner into earth and water by settling, as in the case of dredgings. The drilling mud, such as the bentonite, is used only for lubricating the outside of the pipeline and only a very thin film is needed for that purpose. The supply line is therefore such that it takes into account the quantity for maintaining a lubricating film, which is determined by the advance of the pipeline into the earth mass. Bentonite does not emerge either at the beginning of the drill hole or at the end when it is reached. There is therefore no need to collect or treat bentonite.
- It is very important that according to the process according to the invention at the reamer a balance is maintained between the pulling force pulling the assembly of drill series, reamer and pipeline through the earth and the water pressure present at the reamer plus the counterpressure in the discharge line. The mixture of water and earth flows into this discharge line, which results in a flow resistance in the discharge line. This flow resistance or water pressure, combined with the water pressure of the supply line, forms a pressure at the mouth of the reamer which must be such that earth with ground water from the environment cannot enter the reamer, which could lead to erosion, while on the other hand the pressure must not be so great that a disruption of the environment, such as a blow-through, could occur. This balance also ensures that the path of the pilot hole is followed.
- This balance can be controlled in a simple manner by regulation of the pulling force or the water pressure. Measurements of pulling force, water pressure and line resistance can be achieved in a simple manner.
- Since, however, it is desirable to work with a constant pulling force and with a constant water pressure, for the water coming out of the drill series must form the mixture of earth and water, the simplest maintenance of the balance is achieved by influencing the pressure in the discharge line. This can be achieved in a simple manner by changing the throughflow cross-section when an increase in pressure is required.
- When a pressure reduction is needed, which can occur with increasing length, this can be achieved according to the invention by connecting the discharge line to a suction pump or installing a suction pump in the discharge line.
- It is also possible according to the invention that while the drill series is drilling into the earth mass, and after a predetermined distance is covered, a pipe of greater diameter, and with a front end displacing the earth, is disposed over the drill series, rotatably relative to the drill series, said pipe also being lubricated with drilling mud while it is penetrating into the earth mass, and said pipe being coupled to the reamer after reaching the other side and after removal of the drill series. The pilot hole can be cleared in this way and reinforced, the pipe of larger diameter here acting as a supporting pipe. Greater lengths can be spanned in this way.
- The invention also relates to a reamer for use in the process according to the invention, said reamer being provided, at the end of the drill series projecting into the reamer, with a hollow wheel, which is mounted in a freely rotatable manner on said end and has tangentially directed outflow apertures, and which is connected to the interior of the drill series. The tangentially outflowing water ensures the rotation of this wheel, and thus produces the one swirl of the earth loosened by the reamer with the water supplied, through which a more homogeneous mixture is obtained, which can be discharged through the discharge line.
- The reamer can be provided at the front, instream from the teeth, with a non-return protection device, such as a non-return valve, which opens inwards. If there is a sudden upset in the balance, this protection device prevents mixture from emerging from the reamer.
- The invention will now be explained in greater detail with reference to the drawings.
- Fig. 1 shows schematically a first phase, known per se, of the process according to the invention.
- Fig. 2 shows the next phase in the same way as Fig. 1.
- Fig. 3 shows schematically on a larger scale again the connection between reamer and pipeline during the phase shown in Fig. 2.
- Fig. 4 is a variant of the embodiment of Fig. 3.
- Fig. 5 shows another variant of the embodiment of Fig. 3.
- Fig. 6 shows schematically a part of Fig. 5.
- Fig. 7 shows a variant of the phase shown in Fig. 1.
- Figs. 1 and 2 show an
earth mass 1 with awatercourse 2. Under the watercourse a pipeline has to be laid along the route indicated by the broken line 3. This is carried out by means of a drill series, comprising a drill head 4, which can be controlled in a known manner, and connected to it are thedrill series pieces 5, comprising pipe lengths coupled to each other. One begins at 6, where constantly succeeding sections of the drill series are coupled to the series already placed in the ground and are driven in a thrusting and rotating manner by thedevice 7. - This is all known per se from American Patent Specification 3,878,903.
- After reaching the other side at 8 the drill 4 is removed, and the
front section 5 is fixed to areamer 9, essentially comprising a cylindrical element which is provided at the front side withteeth 10 and has a connection in the rear wall for adischarge hose 11. The latter projects into the section of thepipeline 12 to be laid which is coupled rotatably to the reamer. - After coupling with reamer and
pipe section 12, the drill series is moved in the opposite direction, in the direction of the arrow 13, the reamer being rotated without thepipeline 12 being set in rotation. - The section comprising a part of the drill series, the reamer and the front part of the pipeline is shown on a larger scale in Fig. 3. Through the
drill series 5 pressurized water is fed to the interior of the reamer, and this water is mixed there with the earth loosened by theteeth 10. Loosened earth and water form a mixture which is discharged via thedischarge hose 11 through the pipeline. - The reamer has a diameter which is equal to or slightly greater than the diameter of the pipeline.
- Via the schematically shown pipes, 14, 15 and 16 bentonite is fed in during this phase of the process according to the invention to the outside of the
pipeline 12. This bentonite is applied in a thin layer, which serves solely for lubrication. This application takes place in such a quantity that no flow can take place in the lengthwise direction of the pipeline. - The pulling force which is exerted by the
device 7 on the drill series must be in balance here with the infed water pressure and the flow resistance in thedischarge hose 11, so that at the mouth of the reamer at 10 a pressure prevails which prevents more earth than the loosened earth from entering the reamer, or mixture from coming out of the reamer in the wrong direction. - The embodiment shown in Fig. 4 differs from that of Fig. 3 in that the supply of pressurized water takes place through a
separate pipe 25, which runs parallel to thedischarge line 11 through thepipeline 12, and which can have a jet nozzle ornozzles 26 directed in the direction of the discharge line. - In this embodiment the bentonite or drilling mud is supplied through the
drill series 5 andtransverse conduits reamer 9. This bentonite provides thelubricating film 29, just as in the embodiment of Fig. 3. - The embodiment shown in Fig. 5 differs from that of Fig. 3 in that a
wheel 18 is freely rotatably mounted on theend 17 of thedrill series 5 projecting into thereamer 9, said wheel having tangentially directedoutflow apertures 19, as schematically indicated in Fig. 6. These apertures ensure rotation of the wheel and produce a circular flow which ensures mixing of the water with the loosened earth coming in via the reamer. The earth can be guided here byblades 20. - The embodiments shown in Figs. 3, 4 and 5 can all be provided with non-return protection devices which go into action when there is undesirable disturbance of balance, in which mixture could flow out of the
reamer 9 in the wrong direction. This protection device can be in the form of one or more non-return valves (not shown) which is/are placed behind the teeth of the reamer and open inwards. - Fig. 6 shows the drill 4 whose direction is adjustable. The
drill series 5 connects to the drill. - A
second pipe 21, whosefront end 22 is freely rotatable relative to thedrill series 5 and forms a closed head there, is placed over the drill series a distance away from the drill. - The drill is lubricated by feeding in drilling mud, such as bentonite, through the
pipe 23, said drilling mud flowing back out round the drill series during drilling of the pilot hole. In the variant shown in Fig. 7 this drilling mud flows round the outside of thepipe 21. - The front end of the
pipe 21 is shown in Fig. 7 a short distance away from the drill. This distance can, however, be greater, for example 25 metres. - Lubrication of the
second pipe 21 takes place by feeding in drilling mud, such as bentonite, through the interior of thesecond pipe 21, during the progress of thepipe 21 said drilling mud coming out through apertures on the front and flowing back round the outside.
Claims (6)
1.Process for laying a pipeline through an earth mass, in which a drill having behind it a hollow drill series is moved along a predetermined path from one side of the earth mass to the other side through rotation and axial pressure, and using a drilling mud, then after reaching the other side of the earth mass a reamer is fastened to the drill series, the diameter of said reamer being greater than that of the drill series, and the pipeline to be laid is coupled to the reamer, after which the drill series, together with the reamer and the pipeline, is pulled through the earth mass with simultaneous rotation of the reamer in a direction opposite to the direction in which the drill series was moved, at least until the reamer with the start of the pipeline has come out of the earth mass, while the earth coming free during this treatment taking place under traction is discharged, and the outside of the pipeline is then lubricated using drilling mud such as bentonite, characterized in that a reamer is used which is open at the front in the direction of drilling and is closed at the coupling to the pipeline which permits a rotation between reamer and pipeline and is connected there to a discharge line which runs via the pipeline, in that during the pulling via the drill series or the pipeline pressurized water is fed to the reamer, while the pulling force to be exerted on the drill series is kept in balance with the water pressure at the reamer plus the counterpressure in the discharge line running through the pipeline, and in that the outside of the pipeline is lubricated, via a supply line running through the pipeline or through the drill series and emerging near the reamer, only with such a small quantity of drilling mud, such as bentonite, that during the pulling of reamer and pipeline through the earth mass and after reaching the other side of the earth mass no amount of drilling mud of any significance comes out of the earth.
2.Process according to Claim 1, characterized in that the balance between pulling force, on the one hand, and water pressure plus pipe resistance, on the other, is measured by measurement of the pulling force, the water pressure, the drill series and the mixture pressure in the discharge line, and the balance is control led by influencing the pressure in the discharge line.
3.Process according to Claim 2, characterized in that for the regulation of the pressure in the discharge line use is made of a suction pump connected to or placed in the discharge line.
4.Process according to one or more of the preceding claims, characterized in that while the drill series is being introduced into the earth mass and after a predetermined distance is covered along the drill series a pipe of greater diameter and with a front end displacing the earth, is disposed over the drill series, rotatably relative to the drill series, said pipe also being lubricated with drilling mud while it is penetrating into the earth mass, and said pipe being coupled to the reamer after reaching the other side and after removal of the drill series.
5.Reamer for use in the process according to one or more of the preceding claims, characterized in that the reamer is provided, at the end of the drill series projecting therein, with a freely rotatable hollow wheel, which is mounted on said end and has tangentially directed outflow apertures, and which is connected to the interior of the drill series.
6.Reamer for use in the process according to one or more of the preceding claims, or reamer according to Claim 5, characterized in that the reamer is provided at the front side with a non-return protection device, such as a non-return valve opening inwards.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL8802302 | 1988-09-16 | ||
NL8802302A NL8802302A (en) | 1988-09-16 | 1988-09-16 | METHOD FOR CONSTRUCTION OF A PIPE PIPE THROUGH A GROUND MASSIVE |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0360321A1 true EP0360321A1 (en) | 1990-03-28 |
Family
ID=19852918
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP89202233A Withdrawn EP0360321A1 (en) | 1988-09-16 | 1989-09-04 | Process for laying a pipeline through an earth mass |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0360321A1 (en) |
NL (1) | NL8802302A (en) |
Cited By (15)
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EP0468664A2 (en) * | 1990-07-26 | 1992-01-29 | Cherrington Corporation | Method and apparatus for enlarging an underground path |
EP0799969A2 (en) * | 1996-04-04 | 1997-10-08 | Tracto-Technik Paul Schmidt Spezialmaschinen | Process and device for pulling pipes or cables in a pilot hole |
DE19808478A1 (en) * | 1998-03-02 | 1999-09-09 | Koegler | Service pipeline laying method for gas, water, oil or electrical cable pipes |
EP1050661A2 (en) * | 1999-05-05 | 2000-11-08 | BBL (Downhole Tools) Limited | Improvements relating to subsea drilling of boreholes |
WO2001059248A1 (en) * | 2000-02-11 | 2001-08-16 | Alois Pichler | Method for inserting pipes into a bore hole and insertion drill head for carrying out said method |
FR2809449A1 (en) | 2000-05-25 | 2001-11-30 | Jack Butterworth | Device for installing pipe in ground comprises reamer driven by pulling rods with pulling head fixed to pipe and uncoupling means between reamer and pulling head |
GB2386139A (en) * | 2002-03-07 | 2003-09-10 | Lattice Intellectual Property | Method of forming a trenchless flowline |
CN100425802C (en) * | 2005-06-17 | 2008-10-15 | 上海市隧道工程轨道交通设计研究院 | Counter pulling method used in underground pipe culvert linear dark digging |
CN100425801C (en) * | 2005-06-17 | 2008-10-15 | 上海市隧道工程轨道交通设计研究院 | Counter pulling device used in underground pipe culvert linear dark digging |
DE102013013477A1 (en) | 2013-08-15 | 2015-03-12 | Herrenknecht Ag | Drilling head for expanding a pilot hole to create a borehole |
DE102013021889A1 (en) | 2013-12-23 | 2015-06-25 | Herrenknecht Ag | Method and device for laying trenchless laying of pipelines |
DE102015003157A1 (en) | 2015-03-15 | 2016-09-15 | Herrenknecht Ag | drill string |
CN108590692A (en) * | 2018-07-02 | 2018-09-28 | 济南猫爪智能机械有限公司 | Without foundation pit without pilot tunnel self-balancing pipe excavation method and device |
DE102021125909A1 (en) | 2021-10-06 | 2023-04-06 | Herrenknecht Aktiengesellschaft | reaming jig |
CN116951171A (en) * | 2023-05-26 | 2023-10-27 | 中国水电基础局有限公司 | Distributed pipeline system |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL1004632C2 (en) * | 1996-11-27 | 1998-05-28 | Jean Heybroek B V | Drill train assembly provided with drilling head and drilling tube |
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US3878903A (en) * | 1973-12-04 | 1975-04-22 | Martin Dee Cherrington | Apparatus and process for drilling underground arcuate paths |
US4176985A (en) * | 1975-07-14 | 1979-12-04 | Reading And Bates Construction Co. | System and method for installing production casings |
US4221503A (en) * | 1977-12-15 | 1980-09-09 | Cherrington Martin D | Drilling method and apparatus for large diameter pipe |
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WO1988008480A1 (en) * | 1987-04-21 | 1988-11-03 | Horizontal Drilling International | Process for installing an underground pipe and the installation concerned |
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1989
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US3878903A (en) * | 1973-12-04 | 1975-04-22 | Martin Dee Cherrington | Apparatus and process for drilling underground arcuate paths |
NL174293C (en) * | 1974-07-19 | 1987-10-16 | Reading & Bates Constr | METHOD FOR PLACING A TRANSPORT PIPE UNDER AN OBSTACLE LIKE A WATER COURSE |
US4176985A (en) * | 1975-07-14 | 1979-12-04 | Reading And Bates Construction Co. | System and method for installing production casings |
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WO1988008480A1 (en) * | 1987-04-21 | 1988-11-03 | Horizontal Drilling International | Process for installing an underground pipe and the installation concerned |
Cited By (26)
Publication number | Priority date | Publication date | Assignee | Title |
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EP0468664A2 (en) * | 1990-07-26 | 1992-01-29 | Cherrington Corporation | Method and apparatus for enlarging an underground path |
EP0468664A3 (en) * | 1990-07-26 | 1993-02-10 | Cherrington Corporation | Method and apparatus for enlarging an underground path |
EP0799969A2 (en) * | 1996-04-04 | 1997-10-08 | Tracto-Technik Paul Schmidt Spezialmaschinen | Process and device for pulling pipes or cables in a pilot hole |
EP0799969A3 (en) * | 1996-04-04 | 1999-05-06 | Tracto-Technik Paul Schmidt Spezialmaschinen | Process and device for pulling pipes or cables in a pilot hole |
DE19808478A1 (en) * | 1998-03-02 | 1999-09-09 | Koegler | Service pipeline laying method for gas, water, oil or electrical cable pipes |
DE19808478C2 (en) * | 1998-03-02 | 2000-10-26 | Ruediger Koegler | Process for trenchless laying of pipes |
EP1050661A2 (en) * | 1999-05-05 | 2000-11-08 | BBL (Downhole Tools) Limited | Improvements relating to subsea drilling of boreholes |
EP1050661A3 (en) * | 1999-05-05 | 2000-11-15 | BBL (Downhole Tools) Limited | Improvements relating to subsea drilling of boreholes |
WO2001059248A1 (en) * | 2000-02-11 | 2001-08-16 | Alois Pichler | Method for inserting pipes into a bore hole and insertion drill head for carrying out said method |
FR2809449A1 (en) | 2000-05-25 | 2001-11-30 | Jack Butterworth | Device for installing pipe in ground comprises reamer driven by pulling rods with pulling head fixed to pipe and uncoupling means between reamer and pulling head |
GB2386139A (en) * | 2002-03-07 | 2003-09-10 | Lattice Intellectual Property | Method of forming a trenchless flowline |
GB2386139B (en) * | 2002-03-07 | 2005-11-30 | Lattice Intellectual Property | Method of forming a trenchless flowline |
CN100425802C (en) * | 2005-06-17 | 2008-10-15 | 上海市隧道工程轨道交通设计研究院 | Counter pulling method used in underground pipe culvert linear dark digging |
CN100425801C (en) * | 2005-06-17 | 2008-10-15 | 上海市隧道工程轨道交通设计研究院 | Counter pulling device used in underground pipe culvert linear dark digging |
US10364611B2 (en) | 2013-08-15 | 2019-07-30 | Herrenknecht | Drill head for expanding a pilot bore in order to create a borehole |
DE102013013477A1 (en) | 2013-08-15 | 2015-03-12 | Herrenknecht Ag | Drilling head for expanding a pilot hole to create a borehole |
DE102013021889A1 (en) | 2013-12-23 | 2015-06-25 | Herrenknecht Ag | Method and device for laying trenchless laying of pipelines |
RU2645685C2 (en) * | 2013-12-23 | 2018-02-27 | Херренкнехт Аг | Method and device for trenchless laying of pipelines |
US10443761B2 (en) | 2013-12-23 | 2019-10-15 | Herrenknecht Ag | Method and device for trenchless pipe laying |
DE102015003157A1 (en) | 2015-03-15 | 2016-09-15 | Herrenknecht Ag | drill string |
RU2696692C2 (en) * | 2015-03-15 | 2019-08-05 | Херренкнехт Аг | Drill string element |
CN108590692A (en) * | 2018-07-02 | 2018-09-28 | 济南猫爪智能机械有限公司 | Without foundation pit without pilot tunnel self-balancing pipe excavation method and device |
DE102021125909A1 (en) | 2021-10-06 | 2023-04-06 | Herrenknecht Aktiengesellschaft | reaming jig |
WO2023057400A1 (en) | 2021-10-06 | 2023-04-13 | Herrenknecht Ag | Expanding drill device |
DE102021125909B4 (en) | 2021-10-06 | 2023-11-09 | Herrenknecht Aktiengesellschaft | Expansion drilling device |
CN116951171A (en) * | 2023-05-26 | 2023-10-27 | 中国水电基础局有限公司 | Distributed pipeline system |
Also Published As
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