EP1396585A1 - Tête d'injection sous pression d'un fluide pour désagréger le terrain à partir d'un forage - Google Patents
Tête d'injection sous pression d'un fluide pour désagréger le terrain à partir d'un forage Download PDFInfo
- Publication number
- EP1396585A1 EP1396585A1 EP03291946A EP03291946A EP1396585A1 EP 1396585 A1 EP1396585 A1 EP 1396585A1 EP 03291946 A EP03291946 A EP 03291946A EP 03291946 A EP03291946 A EP 03291946A EP 1396585 A1 EP1396585 A1 EP 1396585A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- nozzle
- pipe
- injection head
- head
- axis
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000012530 fluid Substances 0.000 title claims abstract description 26
- 238000002347 injection Methods 0.000 claims abstract description 51
- 239000007924 injection Substances 0.000 claims abstract description 51
- 239000007788 liquid Substances 0.000 claims abstract description 40
- 238000005553 drilling Methods 0.000 claims abstract description 31
- 239000002689 soil Substances 0.000 claims abstract 2
- 230000003247 decreasing effect Effects 0.000 claims description 5
- 239000011440 grout Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 239000004459 forage Substances 0.000 description 2
- 238000002513 implantation Methods 0.000 description 2
- 230000036961 partial effect Effects 0.000 description 2
- 230000000750 progressive effect Effects 0.000 description 2
- 241001416092 Buteo buteo Species 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 238000004162 soil erosion Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
- E02D5/46—Concrete or concrete-like piles cast in position ; Apparatus for making same making in situ by forcing bonding agents into gravel fillings or the soil
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/26—Compacting soil locally before forming foundations; Construction of foundation structures by forcing binding substances into gravel fillings
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/18—Drilling by liquid or gas jets, with or without entrained pellets
Definitions
- the subject of the present invention is an injection head under pressure of a fluid, usually a liquid that can be equipped with a drilling tool for drilling an excavation in the ground including a injection head for the implementation of the known technique under the Anglo-Saxon term of "jet grouting".
- the so-called jet grouting technique involves disaggregating the field using a jet of fluid with very high kinetic energy put in in a borehole, the jet of fluid causing soil erosion in which one wants to realize an excavation.
- a nozzle which is attached to the end of the drill rods, these rods both the routing to the nozzle or the nozzles of the fluid under high pressure and the progressive translation of the nozzle into the ground.
- the nozzle or nozzles are mounted on an organ called the most often monitor or injection head that is attached to the lower end of the stem train, this monitor can itself be equipped at its end bottom of a mechanical drilling tool.
- the fluid used most often is a cement-based grout that will, after drilling, to make a concrete floor element molded into the ground into square. You can also have several fluid jets, one of which can be a gas such as air.
- the liquid that is carried by the rods is sent since the surface by a pump at pressures of one to several tens of MPa.
- the inside diameter of the rods carrying the liquid must be enough large to limit pressure drops in the rods. This diameter can typically be of the order of 20 to 50 mm.
- the diameter of outlet of the nozzle must be sufficiently small to print on the jet liquid sufficient speed at its output to erode the land at a distance.
- the outlet diameter of the nozzle is included, the most often, between 2 and 5 mm and the speed of the liquid at the outlet of the nozzle is one to several hundred meters per second.
- the internal shape of the nozzle is optimized to keep the jet of liquid a speed as high as possible as the jet moves away from the nozzle towards the ground so that it can erode the ground the most possible by employing a minimum of kinetic energy.
- FIG. 1 there is shown the injection head described in this patent.
- the injection head 10 comprises a body 12 having a side wall 14 defining an internal cavity.
- a buzzard of injection of liquid under pressure 16 is mounted in the outer wall 14 of the monitor.
- elements 18 have also been shown.
- connection to the drill string and elements 20 and 22 of connection to the pipe of liquid under pressure and to a pipe annular air circulating in the rods to simultaneously feed the fluid nozzle and an annular air nozzle 16.
- the nozzle 16 is fed from the conduit 22 for conveying the liquid under pressure through a passage 24 formed in the body of the monitor 10 and by a tubing 26 connecting the end of this passage to the inlet of the nozzle 16.
- the tubing 26 which has a constant section has a curvature in order to limit the disturbances of the liquid under pressure between the drill rod and the nozzle 16 itself.
- the injection nozzle has a very small diameter compared to diameter of the pipe used to convey the liquid under pressure to through the stems.
- the solution described in the mentioned US patent above is not therefore fully satisfactory, in particular because of these section differences.
- passage 24 forms right angles with the pipe 22 and with the pipe 26. Such provision creates significant disruptions in the flow of the liquid at the inlet of the pipe 26, and therefore at the nozzle.
- the monitor described in this patent does not allow to supply fluid under pressure to the mechanical tool that can be mounted on the monitor.
- An object of the present invention is to provide a head in particular for the implementation of the jet grouting which make it possible to improve more significantly the quality of the jet supplied by the the nozzles of the injection head mounted at the lower end of the train of rods while allowing, using the same injection head, to feed the mechanical drilling tool.
- the quality and direction of the jet produced by the nozzle are significantly improved due to the progressive reduction and regular of the cross-section of the conduit means, for example tubing, on at least half of its length from its end connection to the fluid line, most often from the pressurized liquid to its connection to the inlet port of the injection nozzle.
- This feature combined with the fact that the line mean of the conduit means has a radius of curvature, which varies regularly, minimizes disturbances the flow of liquid in this tubulure and thus to obtain a jet of which the energy is maximum and whose erosive power is maintained at a maximum distance from the nozzle in the field.
- the monitor selectively allows to feed the nozzles or feed both the nozzle (s) and the drill bit mechanical. It is therefore possible to perform both types of operation without changing the tool attached to the end of the drill string. This possibility can significantly reduce the duration of drilling.
- said means forming conduit comprise a first substantially rectilinear portion extending along the longitudinal axis of said injection head and extending the feed pipe of the drill string, a second portion of which the mean line has an inflection point and a third portion of which the mean line has a constant sign curvature.
- FIG. 2 we will describe the tool of drilling.
- This consists essentially of an injection head or monitor 30 which, as will be explained later in more detail, serves to provide a jet of liquid under pressure or more generally fluid under pressure, delivered by a nozzle to destructure the wall of a drilling.
- This pressurized liquid is typically a grout or a liquid similar charge.
- the nozzle can be multiple and deliver several jets of liquid and gas.
- the upper end 30a of the monitor 30 is connected to drill rods such as 32 to cause the descent of the tool and its rotation.
- the drill pipes 32 are equipped an internal coaxial pipe 34 used for conveying the liquid pressurized to supply the injection nozzle and the tool drilling mechanics.
- At the lower end 30b of the monitor 30 is mounted an intermediate piece 36 serving itself for the actual assembly of the mechanical drill tool 38 or foot tool.
- the injection head 30 comprises a body having a wall external 40 of cylindrical general shape.
- An injection nozzle 42 or possibly several injection nozzles are mounted close to the lower end 30b of the monitor.
- the nozzle 42 is connected to the pipe supply 34 of the drill pipe 32 by a first pipe 44 connected to the pipe 34 by a convergent 46.
- the pipe 44 has a section S1 which is very slightly smaller than that of the pipeline 34 of the drill rods.
- Line 44 extends substantially along the longitudinal axis X, X 'of the monitor 30, that is to say in the extension of the pipe 34.
- a pipe 50 whose shape will be described in more detail later serves to connect the nozzle 42 to the straight line portion 44.
- the first end 50a of the pipe 50 is connected to the lower end 44a of the pipe 44 while its second end 50b is connected to the input 42a of the nozzle 42.
- the injection nozzle 42 has an axis x, x 'which is substantially horizontal.
- the pipe 50 has, at its first end 50a, a section S'1 equal to the Si section of Line 44 and at its second end 50b, a section equals the inlet section of the nozzle 42.
- pipe 50 has a mean line L and sections of the pipe 50 orthogonal to the mean line L may be circles, ellipses or oval shapes. According to an essential characteristic of the invention, the cross section of the pipe 50 is decreasing regularly from its maximum value S'1 to its value minimum s'1.
- the average line L of the pipe S presents a particular shape for obtaining flow lines up to the nozzle 42 as regular as possible.
- the average line L has a first part L1 extending from the upper end A to the intermediate point B to vertical tangent and a second portion L2 extending from point B to second end C connecting to the injection nozzle 42. end A, the average line L1 is connected tangentially to the axis X, X 'of the pipe 44.
- the portion of the average line L1 has a first part L11 having a regular radius of curvature of sign constant and a second portion L12 having a radius of curvature regular constant sign inverse to that of the L11 part.
- These two parts of the middle line L are of course connected at one point I.
- the second portion L2 of the mean line L of the pipe 50 has a radius of curvature which varies regularly in keeping the same sign from point B to its end C.
- Line 50 It results from the particular shape given to Line 50 that it has a cross section that is decreasing regularly from its end A to its end C and that its mean line presents a succession of equally regular radii of curvature of its end C at its end A. It is understood that the combination of these two characteristics make it possible to define between line 44 and the inlet 42a of the nozzle 42 of the regular flow lines of the liquid under pressure flowing in the pipe 50. This regular flow allows to obtain at the outlet of the nozzle 42 a jet of liquid under pressure having an optimal shape and thus a drilling efficiency of the wall of the maximum drilling.
- the axial line 44 can be connected to the nozzle 42 via a pipe whose radius of curvature varies regularly.
- the nozzle or nozzles 42 may have an axis x, x 'disposed in a plane orthogonal to the axis longitudinal X, X 'of the monitor, that is to say a horizontal axis.
- the jet produced by the nozzle is in a plane orthogonal to the wall to be drilled.
- the valve 58 comprises a cylindrical body 62 mounted so in the housing 60 and which thus extends the chamber 56.
- wall 62 of the valve defines a valve seat 64 which can cooperate with a movable shutter 66.
- the shutter 66 is attached to the end of a rod of valve 68 slidably mounted in an axial recess 70 of the wall lower 72 of the valve body.
- a nut 74 is screwed on the end external of the rod 66 and constitutes an external shoulder for the rod 68. This shoulder defines a rest position for the shutter 66.
- the shutter 66 is held in this rest position shown on 8 by a return spring 76 interposed between the shutter 66 and the bottom 72 of the valve body.
- the shutter 66 has an upper face 66a arranged in the chamber 58 which is therefore subjected to the pressure of the liquid under pressure coming through lines 52 and 54.
- the flow rate of liquid creates a depression under the shutter 66.
- the action of this pressure on the upper face 66a due to the created depression, causes the compression of the return spring 76 and the shutter 66 moves towards the down until it comes into contact with the valve seat 64. In this position, the circulation of liquid under pressure between the pipes 52 and 54 and the axial outlet duct of the valve 78.
- the outlet 78 of the valve 58 is extended by an axial bore 80 formed in the intermediate piece 36.
- the bore 80 is equipped with a non-return valve 82.
- the bore 80 of the intermediate piece 36 is extended beyond the non-return valve 82 by the axial supply pipe 84 of the mechanical drilling tool 38. check valve 82 simply serves to prevent the ascent drilling fluid inside the monitor lines.
- the monitor 30 may also include a auxiliary line 90 for supplying the nozzle 42.
- This pipe 90 is directly supplied by the annular space 35 which is between the outer wall of the rod 32 and the inner pipe 34 of it.
- the pipe 90 at its lower end 90a, serves to feed an annular space 92 which surrounds the outlet of the nozzle 42.
- This auxiliary fluid supply under pressure which creates an annular jet, surrounding the main jet produced by the nozzle 42, can serve to improve still the quality of the jet created by the nozzle 42.
- the nozzle or the injection nozzles 42 can be fed with liquid under under optimal conditions, which also makes it possible to obtain a pressure jet of optimal efficiency thanks to the regularity of the veins in the pipe 50.
- the monitor 30 also allows the liquid supply under pressure of the mechanical foot tool 38 without altering the quality of the jet produced by the nozzle 42.
- the entire liquid under pressure can be used for the realization of the jet if it appears necessary.
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- Geology (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- Geochemistry & Mineralogy (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Earth Drilling (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
- Soil Working Implements (AREA)
- Nozzles (AREA)
- Disintegrating Or Milling (AREA)
Abstract
Description
- au moins une canalisation d'alimentation dudit outil mécanique en fluide sous pression, ladite canalisation étant raccordée d'une part à la première extrémité des moyens formant conduit et d'autre part à une chambre disposée à l'extrémité inférieure de ladite tête d'injection ; et
- un clapet commandable interposé entre ladite chambre et la canalisation d'alimentation dudit outil mécanique.
- la figure 1, déjà décrite, est une vue en coupe verticale d'une tête d'injection connue ;
- la figure 2 est une vue en coupe verticale de l'ensemble de l'outil de forage, selon l'invention, représenté monté à l'extrémité inférieure du train de tiges ;
- la figure 3 est une vue en coupe verticale de la tête d'injection ;
- la figure 4 est une vue partielle en coupe verticale selon la ligne IV-IV de la figure III ;
- la figure 5 est une vue en coupe horizontale selon la ligne V-V de la figure 4 ;
- la figure 6 est une vue en coupe horizontale selon la ligne VI-VI de la figure 4;
- la figure 7 est une vue de détails de la figure 4 montant l'implantation de la buse d'injection ; et
- la figure 8 est une vue partielle de la figure 3 montrant un mode préféré de réalisation du clapet d'alimentation de l'outil mécanique de forage.
Claims (6)
- Tête d'injection sous pression (30) d'un fluide pour désagréger le terrain à partir d'un forage, ladite tête étant montée à l'extrémité d'un train de tiges ou de tubes (32), ledit train comportant une conduite (34) d'alimentation sous pression en fluide coaxiale audit train de tiges, ladite tête comportant un corps (40) ayant une extrémité supérieure (30a) de raccordement à l'extrémité inférieure du train de tiges ou de tubes, une paroi inférieure pour le montage d'un outil mécanique (38) de forage comportant une canalisation d'alimentation (84) et une paroi externe, corps dans lequel est montée au moins une buse d'injection (42) dont le diamètre d'entrée est égal à d, et qui présente un axe x, x', et des moyens formant conduit (50) pour raccorder la conduite d'alimentation en liquide à l'entrée de ladite buse, ladite tête d'injection se caractérisant en ce que lesdits moyens formant conduit (50) présentent une ligne moyenne (L) dont la première extrémité est raccordée à l'extrémité inférieure de la conduite d'alimentation (34) en liquide et dont la deuxième extrémité est raccordée tangentiellement à l'axe x, x' de la buse (42), ladite ligne moyenne étant définie par au moins une portion de courbe présentant un rayon de courbure variant de façon continue, la section droite desdits moyens formant conduit (50) diminuant de façon régulière sur au moins la moitié de sa longueur depuis sa première extrémité (50a) jusqu'à sa deuxième extrémité (50b), et en qu'elle comprend en outre :au moins une canalisation d'alimentation (52, 54) dudit outil mécanique (38) en fluide sous pression, ladite canalisation étant raccordée d'une part à la première extrémité des moyens formant conduit (50) et d'autre part à une chambre (56) disposée à l'extrémité inférieure de ladite tête d'injection ; etun clapet commandable (58) interposé entre ladite chambre (56) et la canalisation (84) d'alimentation dudit outil mécanique.
- Tête d'injection selon la revendication 1, caractérisée en ce que lesdits moyens formant conduit (50) comprennent une première portion sensiblement rectiligne (44) s'étendant selon l'axe longitudinal (X, X') de ladite tête d'injection (30) et prolongeant la conduite d'alimentation (34) du train de tige, une deuxième portion (L1) dont la ligne moyenne présente un point d'inflexion (I) et une troisième portion (L2) dont la ligne moyenne a une courbure de signe constant.
- Tête d'injection selon l'une quelconque des revendications 1 et 2, caractérisée en ce que l'axe de ladite buse (42) ou desdites buses est disposé dans un plan orthogonal à l'axe longitudinal (X, X') de ladite tête d'injection.
- Tête d'injection selon la revendication 2, caractérisée en ce qu'elle comprend deux canalisations d'alimentation (52, 54) dudit outil mécanique (38), la première extrémité desdites canalisations étant raccordée à la première portion (44) desdits moyens formant conduit.
- Tête d'injection selon la revendication 4, caractérisée en ce que ladite chambre interne (56) est disposée selon l'axe longitudinal de ladite tête d'injection.
- Tête d'injection selon l'une quelconque des revendications 1 à 5, caractérisée en ce que ledit clapet commandable (58) comprend un siège (64) et un obturateur (66) mobile dont la position est commandée par le débit de liquide circulant dans ledit clapet.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0210251 | 2002-08-13 | ||
FR0210251A FR2843609B1 (fr) | 2002-08-13 | 2002-08-13 | Tete d'injection sous pression d'un fluide pour desagreger le terrain a partir d'un forage |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1396585A1 true EP1396585A1 (fr) | 2004-03-10 |
EP1396585B1 EP1396585B1 (fr) | 2006-05-17 |
Family
ID=30775962
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03291946A Expired - Lifetime EP1396585B1 (fr) | 2002-08-13 | 2003-08-01 | Tête d'injection sous pression d'un fluide pour désagréger le terrain à partir d'un forage |
Country Status (8)
Country | Link |
---|---|
US (1) | US7000714B2 (fr) |
EP (1) | EP1396585B1 (fr) |
JP (1) | JP2004076573A (fr) |
AT (1) | ATE326585T1 (fr) |
DE (1) | DE60305256T2 (fr) |
ES (1) | ES2262955T3 (fr) |
FR (1) | FR2843609B1 (fr) |
SG (1) | SG129253A1 (fr) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009136237A1 (fr) | 2008-05-06 | 2009-11-12 | Soilmec S.P.A. | Tête d'injection pour travaux d'injection de coulis |
ITTO20100613A1 (it) * | 2010-07-15 | 2012-01-16 | Trevi Spa | Testa di iniezione per iniettare miscele consolidanti fluide pressurizzate nel terreno |
EP2463443A1 (fr) | 2010-12-13 | 2012-06-13 | Soilmec S.p.A. | Tête d'injection pour l'injection de mélanges de fluide pressurisés de consolidation dans le sol |
CN102536121A (zh) * | 2012-02-08 | 2012-07-04 | 中国石油大学(北京) | 脉冲式井下增压射流钻井方法及装置 |
CN107035319A (zh) * | 2017-05-23 | 2017-08-11 | 扬州大学 | 一种油气田钻井用水力减阻振荡器 |
EP3489418A1 (fr) | 2017-11-23 | 2019-05-29 | VSL International AG | Tête d'injection à haute efficacité pour injection de mélanges de fluides de consolidation sous pression dans le sol |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7630456B2 (en) * | 2002-09-09 | 2009-12-08 | Lsi Corporation | Method and/or apparatus to efficiently transmit broadband service content using low density parity code based coded modulation |
AU2009202836A1 (en) * | 2008-09-18 | 2010-04-08 | Peter Andrew Gray | An injection, sealing, valving and passageway system |
JP5608449B2 (ja) * | 2010-07-12 | 2014-10-15 | 裕治 金子 | 地盤改良工法に使用するモニター機構 |
CN106194029B (zh) * | 2016-09-21 | 2017-05-31 | 海斯比得(武汉)石油科技有限公司 | 基于增压器的岩爆钻井装置以及破岩方法 |
CN106351814B (zh) * | 2016-10-14 | 2017-08-25 | 海斯比得(武汉)石油科技有限公司 | 井下增压器、井下增压压裂工具及井下增压压裂方法 |
CN113246223B (zh) * | 2021-05-27 | 2022-08-02 | 中煤科工集团沈阳研究院有限公司 | 可调节式超高压水射流切割装置及使用方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6153912A (ja) * | 1984-08-24 | 1986-03-18 | Yuji Kaneko | 円柱状硬化壁の造成による地盤改良方法 |
US5228809A (en) * | 1989-01-27 | 1993-07-20 | Kajima Corporation | Consolidating agent injecting apparatus and injecting apparatus for improving ground |
DE29916060U1 (de) * | 1999-09-08 | 2000-04-27 | Geidel, Christian, 04448 Wiederitzsch | Bodeninjektionslanze mit Druckbegrenzung für Hochdruckinjektion |
EP1231326A1 (fr) * | 2001-02-12 | 2002-08-14 | Compagnie Du Sol | Tête d'injection sous pression |
Family Cites Families (5)
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---|---|---|---|---|
US4534427A (en) * | 1983-07-25 | 1985-08-13 | Wang Fun Den | Abrasive containing fluid jet drilling apparatus and process |
US4930586A (en) * | 1989-05-12 | 1990-06-05 | Ben Wade Oakes Dickinson, III | Hydraulic drilling apparatus and method |
CA2228477A1 (fr) * | 1995-08-03 | 1997-02-20 | Douglas P. Kelley | Dispositif amplificateur de pression de fond et ensemble et procede de forage |
NO312255B1 (no) * | 2000-06-28 | 2002-04-15 | Pgs Reservoir Consultants As | Verktöy for gjennomhulling av et langsgående veggparti av et fôringsrör |
JP2003239668A (ja) * | 2002-02-14 | 2003-08-27 | Chem Grouting Co Ltd | 立孔掘削工法及び装置 |
-
2002
- 2002-08-13 FR FR0210251A patent/FR2843609B1/fr not_active Expired - Fee Related
-
2003
- 2003-08-01 DE DE60305256T patent/DE60305256T2/de not_active Expired - Lifetime
- 2003-08-01 ES ES03291946T patent/ES2262955T3/es not_active Expired - Lifetime
- 2003-08-01 EP EP03291946A patent/EP1396585B1/fr not_active Expired - Lifetime
- 2003-08-01 AT AT03291946T patent/ATE326585T1/de not_active IP Right Cessation
- 2003-08-11 SG SG200304823A patent/SG129253A1/en unknown
- 2003-08-11 US US10/639,188 patent/US7000714B2/en not_active Expired - Fee Related
- 2003-08-13 JP JP2003292919A patent/JP2004076573A/ja active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6153912A (ja) * | 1984-08-24 | 1986-03-18 | Yuji Kaneko | 円柱状硬化壁の造成による地盤改良方法 |
US5228809A (en) * | 1989-01-27 | 1993-07-20 | Kajima Corporation | Consolidating agent injecting apparatus and injecting apparatus for improving ground |
DE29916060U1 (de) * | 1999-09-08 | 2000-04-27 | Geidel, Christian, 04448 Wiederitzsch | Bodeninjektionslanze mit Druckbegrenzung für Hochdruckinjektion |
EP1231326A1 (fr) * | 2001-02-12 | 2002-08-14 | Compagnie Du Sol | Tête d'injection sous pression |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 010, no. 216 (M - 502) 29 July 1986 (1986-07-29) * |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009136237A1 (fr) | 2008-05-06 | 2009-11-12 | Soilmec S.P.A. | Tête d'injection pour travaux d'injection de coulis |
US8573893B2 (en) | 2008-05-06 | 2013-11-05 | Soilmec S.P.A. | Injection head for carrying out jet grouting processes |
ITTO20100613A1 (it) * | 2010-07-15 | 2012-01-16 | Trevi Spa | Testa di iniezione per iniettare miscele consolidanti fluide pressurizzate nel terreno |
EP2407598A1 (fr) | 2010-07-15 | 2012-01-18 | Trevi S.p.A. | Tête pour l'injection de mélanges de fluide pressurisés de consolidation dans le sol |
US8662795B2 (en) | 2010-07-15 | 2014-03-04 | Trevi S.P.A. | Head for injecting consolidating pressurised fluid mixtures into the ground |
EP2463443A1 (fr) | 2010-12-13 | 2012-06-13 | Soilmec S.p.A. | Tête d'injection pour l'injection de mélanges de fluide pressurisés de consolidation dans le sol |
CN102536121A (zh) * | 2012-02-08 | 2012-07-04 | 中国石油大学(北京) | 脉冲式井下增压射流钻井方法及装置 |
US9115541B2 (en) | 2012-02-08 | 2015-08-25 | China University Of Petroleum-Beijing (Cupb) | Impulse-type underground supercharged jet drilling method and device |
CN107035319A (zh) * | 2017-05-23 | 2017-08-11 | 扬州大学 | 一种油气田钻井用水力减阻振荡器 |
EP3489418A1 (fr) | 2017-11-23 | 2019-05-29 | VSL International AG | Tête d'injection à haute efficacité pour injection de mélanges de fluides de consolidation sous pression dans le sol |
Also Published As
Publication number | Publication date |
---|---|
ATE326585T1 (de) | 2006-06-15 |
US7000714B2 (en) | 2006-02-21 |
SG129253A1 (en) | 2007-02-26 |
ES2262955T3 (es) | 2006-12-01 |
JP2004076573A (ja) | 2004-03-11 |
US20050077041A1 (en) | 2005-04-14 |
DE60305256D1 (de) | 2006-06-22 |
FR2843609A1 (fr) | 2004-02-20 |
DE60305256T2 (de) | 2007-05-03 |
FR2843609B1 (fr) | 2004-10-29 |
EP1396585B1 (fr) | 2006-05-17 |
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