EP1213055B1 - Buse pour système de forage d'injection à haute pression et outil de forage d'injection à haute pression - Google Patents

Buse pour système de forage d'injection à haute pression et outil de forage d'injection à haute pression Download PDF

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Publication number
EP1213055B1
EP1213055B1 EP01128905A EP01128905A EP1213055B1 EP 1213055 B1 EP1213055 B1 EP 1213055B1 EP 01128905 A EP01128905 A EP 01128905A EP 01128905 A EP01128905 A EP 01128905A EP 1213055 B1 EP1213055 B1 EP 1213055B1
Authority
EP
European Patent Office
Prior art keywords
injection nozzle
nozzle
fluid channel
injection
fluid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP01128905A
Other languages
German (de)
English (en)
Other versions
EP1213055A1 (fr
Inventor
Günter Fennel
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.)
Boart Longyear GmbH and Co KG
Original Assignee
Boart Longyear GmbH and Co KG Hartmetallwerkzeugfabrik
Boart Longyear GmbH and Co KG
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 Boart Longyear GmbH and Co KG Hartmetallwerkzeugfabrik, Boart Longyear GmbH and Co KG filed Critical Boart Longyear GmbH and Co KG Hartmetallwerkzeugfabrik
Publication of EP1213055A1 publication Critical patent/EP1213055A1/fr
Application granted granted Critical
Publication of EP1213055B1 publication Critical patent/EP1213055B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/34—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
    • B05B1/3402—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to avoid or to reduce turbulencies, e.g. comprising fluid flow straightening means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
    • 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
    • E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
    • E21B41/0078—Nozzles used in boreholes

Definitions

  • the invention relates to an injection nozzle for Hochdruckinjedgingsbohrsysteme according to the preamble of claim 1 and a Hochchristinjedgingsbohrtechnikzeug with such an injection nozzle according to the preamble of claim 11.
  • cement slurry is injected into the ground to create a watertight concrete platform prior to excavation.
  • the fluid namely the cement slurry is pumped down through the fluid line of a Hochlichinjedgingsbohrwerkmaschinectiones and injected via at least one connected to the fluid line injection nozzle on the rotating Hochtikinjetechnischsbohrwerkmaschinezeug circularly around it, so that a circular concrete block is formed.
  • the concrete platform to be built is formed by a large number of concrete blocks, which overlap one another. The larger the diameter of the individual concrete blocks, the fewer holes must be drilled to obtain the desired concrete platform size.
  • the known injection nozzles which are used for such systems, have a fluid channel with a round inner cross-section.
  • attempts have already been made without great success to concentrate the injection jet by lengthening the injection nozzles or the fluid channel extending therethrough in order to achieve larger diameters.
  • a high-pressure injection nozzle in which a blocking element in the form of a cross is arranged in the nozzle body immediately before the exit of the fluid from the nozzle.
  • the nozzle has a narrow feed channel which widens in the direction of flow of the fluid via an inlet portion into a nozzle chamber in a funnel shape.
  • the inner diameter of the nozzle even further enlarging outlet section then the blocking element is arranged.
  • the fluid hits the blocking element at high speed and is thereby braked and split. A satisfactory bundling of the fluid jet does not take place. Rather, the fluid jet loses energy and exit velocity and thus length.
  • a generic injection nozzle is in the US-A-5,256,004 described.
  • the invention therefore addresses the problem of providing an injection nozzle for Hochdruckinjedgingsbohrsysteme or a Hochdruckinjedgingmiesbohrwerkmaschine, which makes it possible to create concrete blocks with the largest possible diameter.
  • the non-circular internal cross-sectional shape of the fluid channel of the newly developed injection nozzle brakes the resulting vortex within the nozzle and thus bundles the injection jet over the entire nozzle length to the outlet, so that a smooth uniform jet without turbulence leaves the nozzle, which still remains sharp over a large length ,
  • significantly larger concrete block diameters can be achieved and fewer holes must be made to cover the same concrete platform surface.
  • the construction times and construction costs are reduced considerably.
  • Injection nozzles whose inner cross-section has guide profiles projecting into the fluid channel are particularly effective, since they brake the generated vortices particularly well.
  • Preferred designs are therefore injection nozzles with wings projecting into the fluid channel or wedge-like guide profiles, which, when arranged adjacently, result in a star-shaped inner cross section of the fluid channel.
  • the Wirbelbrems- and bundling effect is particularly large when the guide profiles are rib-shaped and preferably extend over the entire nozzle length.
  • the walls of the fluid channel are exposed to high wear by the cement slurry, it is advantageous to form the fluid channel in a separate nozzle insert, which is inserted into the nozzle body and connected thereto, for example by screwing, soldering or gluing.
  • a production of the nozzle insert made of carbide extends its service life and thus reduces possible set-up times for a change.
  • the high-pressure injection drilling tool shown in FIG. 1 consists of a drill string 1, through which a fluid line 2 extends. Front side of the drill pipe 1 a drill bit 3 is arranged. In the direction of fluid flow 4 in front of the drill bit 3 are injection nozzles 5 with a nozzle body 6, in which a nozzle insert 7 is inserted.
  • the nozzle insert 7 is shown in more detail in FIGS. 4 and 5. Through the nozzle insert 7 extends a fluid channel 8, which - as can be seen in FIGS. 2 to 4 - has a non-circular over the entire length L of the fluid channel 8 constant inner cross-section.
  • Fig. 6 shows various non-circular inner cross-sectional shapes, all of which brake the resulting in the fluid jet during the deflection of the fluid line 2 in the fluid passage 8 vortex and bundle the fluid jet thereby.
  • the fluid channel has guide profiles 9 projecting into it, as in the embodiments of FIGS. 6d to 6f.
  • the guide profiles 9 are wedge-shaped and arranged close together, so that there is a star-shaped inner cross-section.
  • the guide profiles 9 form trains 10 and fields 9 '.
  • the guide profiles are wing-like and protrude far into the interior of the fluid channel 8.
  • the swirl braking effect and the associated bundling of the fluid jet is particularly pronounced in this embodiment.
  • the number of guide profiles is not limited to three. Even a single guide profile already achieves a positive effect. However, embodiments with three or four guide profiles lead to a particularly good bundling of the fluid jet.
  • the injection nozzle preferably has an inlet section 1, which is connected upstream of the fluid channel 8. This creates a smooth transition of the cross-sectional constriction of the fluid line 2 in the fluid channel 8. Energetically low, this cross-sectional constriction of the inlet portion 11 is viewed from the inside of the nozzle convex rounded.
  • the guide profiles 9 can also begin as indicated in dashed lines in Fig. 5 already in the inlet section 11, thereby preventing even in this area that form an undesirable spin or turbulence in the fluid.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • Structural Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Soil Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Nozzles (AREA)

Claims (11)

  1. Buse d'injection pour systèmes de forage d'injection à haute pression, comportant un corps de buse (6) et un canal à fluide (8) qui s'étend longitudinalement à travers celui-ci destiné à de la bouillie de ciment à injecter, la buse d'injection (5) étant conformée pour être montée sur un train de tiges de forage (1) de telle sorte que son canal à fluide (8) s'étende au moins à peu près à angle droit par rapport à l'axe longitudinal du train de tiges de forage, caractérisée en ce que le canal à fluide (8) présente une section transversale intérieure uniforme non ronde sur au moins la partie substantielle de sa longueur (L).
  2. Buse d'injection selon la revendication 1, caractérisée par des profils directeurs (9) qui s'étendent dans le sens longitudinal de la buse (5) en saillie dans le canal à fluide.
  3. Buse d'injection selon la revendication 2, caractérisée en ce que les profils directeurs (9) s'étendent au moins substantiellement sur toute la longueur de la buse.
  4. Buse d'injection selon la revendication 2 ou 3, caractérisée en ce que les profils directeurs (9) sont en forme de nervures.
  5. Buse d'injection selon l'une quelconque des revendications 2 à 4, caractérisée par une section transversale intérieure en forme d'étoile.
  6. Buse d'injection selon l'une quelconque des revendications 2 à 5, caractérisée en ce que les profils directeurs (9) forment des rainures (10) et des languettes (9') dans le canal à fluide (8).
  7. Buse d'injection selon l'une quelconque des revendications. 1 à 6, caractérisée en ce qu'un tronçon d'entrée (11) présentant une section transversale se rétrécissant dans le sens d'écoulement du fluide (4) est prévu en amont du canal à fluide (8).
  8. Buse d'injection selon la revendication 7, caractérisée en ce que le rétrécissement de la section transversale du tronçon d'entrée (11) est conformé de façon arrondie convexe.
  9. Buse d'injection selon l'une quelconque des revendications 1 à 8, caractérisée en ce que le canal à fluide (8) est conformé dans une fourrure de buse (7) insérée dans le corps de buse (6).
  10. Buse d'injection selon la revendication 9, caractérisée en ce que la fourrure de buse (7) est en métal dur.
  11. Outil de forage d'injection à haute pression comportant un train de tiges de forage (1), une couronne de forage (3) disposée du côté frontal du train de tiges de forage (1), un conduit à fluide (2) qui s'étend à travers le train de tiges de forage (1) et au moins une buse d'injection (5), dont l'axe longitudinal s'étend angulairement par rapport à l'axe longitudinal du train de tiges de forage (1), disposée en amont de la couronne de forage (3) dans le sens d'écoulement du fluide (4) et raccordée au conduit à fluide (2), caractérisé en ce que la buse d'injection (5) est conformée selon l'une quelconque des revendications 1 à 10.
EP01128905A 2000-12-06 2001-12-05 Buse pour système de forage d'injection à haute pression et outil de forage d'injection à haute pression Expired - Lifetime EP1213055B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20020783U 2000-12-06
DE20020783U DE20020783U1 (de) 2000-12-06 2000-12-06 Injektionsdüse für Hochdruckinjektionsbohrsysteme sowie Hochdruckinjektionsbohrwerkzeug

Publications (2)

Publication Number Publication Date
EP1213055A1 EP1213055A1 (fr) 2002-06-12
EP1213055B1 true EP1213055B1 (fr) 2007-06-13

Family

ID=7949802

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01128905A Expired - Lifetime EP1213055B1 (fr) 2000-12-06 2001-12-05 Buse pour système de forage d'injection à haute pression et outil de forage d'injection à haute pression

Country Status (4)

Country Link
EP (1) EP1213055B1 (fr)
AT (1) ATE364450T1 (fr)
DE (2) DE20020783U1 (fr)
ES (1) ES2287066T3 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6851632B2 (en) * 2003-01-24 2005-02-08 Spraying Systems Co. High-pressure cleaning spray nozzle
US10351893B2 (en) 2015-10-05 2019-07-16 GeneWeave Biosciences, Inc. Reagent cartridge for detection of cells

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3207197A1 (de) * 1982-02-27 1983-09-08 Fried. Krupp Gmbh, 4300 Essen Vorrichtung zur erzeugung eines spruehstrahls
US4494618A (en) * 1982-09-30 1985-01-22 Strata Bit Corporation Drill bit with self cleaning nozzle
US4687066A (en) * 1986-01-15 1987-08-18 Varel Manufacturing Company Rock bit circulation nozzle
US4703814A (en) * 1986-01-16 1987-11-03 Hughes Tool Company - Usa Earth boring bit having a replaceable, threaded nozzle with wrench socket
DE3737259C1 (en) * 1987-11-03 1989-03-16 Bauer Spezialtiefbau Apparatus and method for high-pressure injection
DE3806407C2 (de) * 1988-02-29 1995-08-31 Keller Grundbau Gmbh Vorrichtung zur Herstellung von durch Zugabe von Binde- oder Abdichtmitteln verdichteten Bodenabschnitten
US5256004A (en) * 1990-07-31 1993-10-26 Fondazioni Speciali, S.R.L. Method of forming consolidated earth columns by injection and the relevant plant and column
FR2689534A1 (fr) * 1992-04-06 1993-10-08 Sif Entreprise Bachy Procédé de réalisation d'écrans d'étanchéité souterrains, écrans ainsi produits, et dispositif à jet pour la mise en Óoeuvre de ce procédé.
DE19747908A1 (de) * 1997-10-30 1999-05-06 Tubag Trass Zement Stein Düse zum Aufbringen von Mörtel
DE19821449A1 (de) * 1998-05-13 1999-11-18 Loegel Charles Vorrichtung zum Verbessern der Wirksamkeit schnell strömender Medien und Verwendung als Hochdruck-Düse zum Erzeugen eines Hochdruck-Flüssigkeitsstrahles sowie andere Verwendungen
DE19918257A1 (de) * 1999-04-22 2000-11-23 Lechler Gmbh & Co Kg Hochdrucksprühdüse
DE19922820C2 (de) * 1999-05-19 2003-03-06 Innovations Gmbh As Hochdruckdüse

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP1213055A1 (fr) 2002-06-12
DE50112623D1 (de) 2007-07-26
ES2287066T3 (es) 2007-12-16
DE20020783U1 (de) 2002-05-02
ATE364450T1 (de) 2007-07-15

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