EP0994235A2 - Durchlauf-Mischanlage für Bohrflüssigkeit - Google Patents
Durchlauf-Mischanlage für Bohrflüssigkeit Download PDFInfo
- Publication number
- EP0994235A2 EP0994235A2 EP99120187A EP99120187A EP0994235A2 EP 0994235 A2 EP0994235 A2 EP 0994235A2 EP 99120187 A EP99120187 A EP 99120187A EP 99120187 A EP99120187 A EP 99120187A EP 0994235 A2 EP0994235 A2 EP 0994235A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- mixing
- pressure pump
- mixing system
- high pressure
- drilling
- 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
- 238000005553 drilling Methods 0.000 title claims abstract description 51
- 239000012530 fluid Substances 0.000 title claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 30
- 238000000034 method Methods 0.000 claims abstract description 21
- 230000008961 swelling Effects 0.000 claims description 6
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 230000003068 static effect Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims 1
- 239000000725 suspension Substances 0.000 description 16
- 239000000440 bentonite Substances 0.000 description 8
- 229910000278 bentonite Inorganic materials 0.000 description 8
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 8
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 6
- 239000000654 additive Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 3
- 229910000029 sodium carbonate Inorganic materials 0.000 description 3
- 235000017550 sodium carbonate Nutrition 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 241000372132 Hydrometridae Species 0.000 description 1
- 239000007900 aqueous suspension Substances 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/50—Mixing liquids with solids
- B01F23/56—Mixing liquids with solids by introducing solids in liquids, e.g. dispersing or dissolving
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/50—Mixing liquids with solids
- B01F23/59—Mixing systems, i.e. flow charts or diagrams
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/30—Injector mixers
- B01F25/31—Injector mixers in conduits or tubes through which the main component flows
- B01F25/312—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/40—Static mixers
- B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/20—Measuring; Control or regulation
Definitions
- the invention relates to a mixing system as used for mixing a drilling fluid is used for horizontal drilling.
- drilling or flushing fluids are used are fed to the drilling device and, for example, in the area of the drilling head emerge and thus be directed into the borehole, an improvement and facilitated drilling by softening the soil and the cuttings are removed.
- a bentonite-water suspension enforced, depending on the given soil conditions with different Consistency.
- Such a suspension has the ability to hold the cuttings in suspension to keep them out of the borehole to be able to transport and also has one when pulling in new pipe string the advantage that it is lubricated and after drawing after a certain hardening phase against the surrounding earth is protected. It is for varying the properties of the suspension known, polymers and other substances such as soda ash, to adjust to adjust the pH.
- Known mixing plants work on the principle that the desired Amount of drilling fluid is mixed in a storage tank, its content is then available for the drilling process. Such mixing plants are referred to as a batch mixer because one batch for each mixing process drilling can be provided.
- the storage tank is run through Mixing a new batch filled up. Because this is disruptive in practice Delays in drilling leads to a second storage tank provide so that the batches of liquid in a tank can be set up while the other tank supplies the drilling rig.
- the disadvantage of such systems is the increased space requirement and additional costs.
- Another disadvantage of the known batch mixers is that the required mixing pumps due to the aggressiveness of an abrasive medium such as bentonite have a special durability have to. This either leads to increased costs or to increased costs Wear.
- the drilling fluid is usually supplied to the drilling rig by a high pressure pump fed.
- Such pumps are usually not self-priming pumps. Because the drilling fluid is not uncommon very high viscosity must be pumped, the use of a self-priming Charge pump required, the high pressure pump on the suction side loaded. The use of such a charge pump also leads to one considerable cost increase.
- the invention is therefore based on the problem of simplified loading to enable a drilling rig with a drilling fluid.
- the solution to the problem is based on the principle of aggregates, such as the powdered bentonite, in front of or behind the high pressure pump initiate.
- the pump When it is introduced before the high-pressure pump, the pump becomes hot water fed via a hydrant, being between hydrant and high pressure pump an introduction to the addition medium is provided.
- the introduction the addition medium can be mechanically supported and via various Measured variables are regulated.
- a mixing section for another can be located behind the high-pressure pump Mixing may be provided.
- a source section can be attached to the mixing section connect if a certain duration of swelling is desired.
- the initiation route can also connect additional mixing and source sections.
- the mixing plant according to the invention allows continuous, i.e. "Online mixing" of the aggregates for the drilling fluid with the process water. Additional storage tanks are avoided so that the Mixing plant has extremely small dimensions and directly on the drilling rig can be used. Due to its small size, the Mixing system can be designed as components of mobile drilling equipment.
- drilling fluid is avoided by the mixing system according to the invention.
- Another advantage is the simplified option of reprocessed To use drilling fluid.
- the large amounts of liquid that are often used in horizontal drilling have resulted in a "recycling" of the drilling fluid from economic and ecological Reasons is required.
- reprocessed drilling fluid with regard to its viscosity by a preselected one Ratio of water added to the added medium be optimally set for the new drilling process.
- the compact design realized with the invention allows to connect the mixing plant with mobile drilling rigs of any size, because a high variability with regard to the possible addition quantity and mixing capacity consists.
- the mixing plant then only has to be on site a hydrant can be connected, the desired amount Drilling fluid available for drilling in any constellation stands.
- the mixing plant is preferably used Silos or a so-called "Big Bag” as a storage container for the Aggregates for use.
- the usual batch tanks, the larger ones Drilling rigs take on considerable dimensions.
- the mixing plant according to the invention has one lower energy consumption and a longer lifespan than conventional ones Devices, not least due to the elimination of those required in the prior art Additional pumps.
- Mixing system can be implemented is a fully automatic process of Drilling process in relation to the drilling fluid possible by a Automation of reprocessing can be supplemented.
- the service water of the high pressure pump be fed. This can be done either through a hydrant through the High pressure pump itself or by a conventional water pump.
- the high pressure pump itself does not need to be resistant to abrasive To be media.
- the suspension medium the process water before the high pressure pump (Fig. 1, 2, 5, 6).
- the mixing system turns on the process water fed to the low pressure side of a high pressure pump via a hydrant.
- the mixing system also has a pressure reducing valve on the low pressure side 12, via which the process water of the high pressure pump 7 via a filter element 13 and a shut-off valve 14 is supplied.
- the hot water supply can be switched on and off as well of control commands from control electronics connected to valve 14 1 regulate according to certain parameters.
- the control electronics 1 is with connected to a sensor 8, which actually flows through water measures that by the flow rate of the high pressure pump 7 with adjustable Drive 24 is determined which by hand (e.g. via a potentiometer) is adjustable or automatically adjustable.
- the amount of addition medium required for the desired mixing ratio (Bentonite as a suspension amount) is conveyed via a conveyor 6 connected to a so-called Big Bag 5 or other storage containers which contains the bentonite supply, the exact Dosing via a drive 3 of the conveyor 6, which with the control electronics 1 is connected via an actuator 2 takes place.
- Bentonite reaches the conveyor 6 via a feed line 21 this in an amount dependent on the speed of the drive 3 to the high pressure pump 7, with the engine speed of the drive above a sensor 20 is transmitted to the control electronics 1.
- the control electronics 1 ensures setpoint / actual value comparison via the actuator 2 that the desired speed of the drive 3 is maintained.
- the Suspension medium arrives behind the shut-off valve 14 on the low pressure side the high pressure pump 7 in the process water and is together with this from the high pressure pump 7 into a high pressure mixing section 15 conveyed, the pumping process of the high pressure pump 7 intensive mixing takes place.
- the mixing section 15 consists of several static or dynamic operated in series or in parallel Mixers, with static mixers being preferred, since only the too mixing components are moved.
- the mixing is done by Splitting, redirecting and reuniting the media intensified.
- the spherical structure of the bentonite components is characterized by the high shear forces acting in the mixer are broken up. This leads to a reduction the swelling time, since the surface of the suspension medium at which the water molecules accumulate, is enlarged.
- a source section 16 is provided, which depending on the version, a more or less long swelling time of the drilling suspension enables.
- the source section 16 can be from an intermediate container or consist of a coiled tubing or by the length of the drill pipe 10 be realized, via which the suspension of the drill head 11 or Expanding tool 17 is fed.
- the drilling suspension can be connected to other lines 18, 19 Additives, such as polymers or soda ash, added are also initiated immediately before the high pressure pump 7 become.
- Process water can also be supplied via a storage tank 9.
- the suspension medium enters the process water in a buffer tank 23.
- the buffer tank has a level switch (a, b) which supplies the bentonite switches on and off, depending on whether the medium is the upper one Mark a exceeds or falls below the lower mark b.
- the buffer tank 23 is preferably designed as a narrow vertically arranged tube, the segregating the process water drilling suspension mixture prior to entry prevented in the pump 7.
- the buffer container 23 also prevents the high pressure pump 7 is inadvertently supplied with air.
- the suspension medium on the high pressure side of the high pressure pump 7 fed arrives in the area of the water jet nozzle 22 of the high pressure pump in the domestic water, creating a intensive mixing is achieved.
- the mixing situation can be influenced.
- the diameter of the water jet nozzle is adjustable depending on the flow rate, to ensure an intense water jet at all times.
Abstract
Description
- Fig. 1
- eine erfindungsgemäße Mischanlage mit Zuleitung des Supensionsmediums in Flußrichtung vor der Hochdruckpumpe,
- Fig. 2
- die Mischanlage der Fig. 1 mit Zuleitungen für Zusatzstoffe,
- Fig. 3
- die Mischanlage der Fig. 1 mit Zuleitung für das Zugabemedium hinter der Hochdruckpumpe,
- Fig. 4
- die Mischanlage der Fig. 3 mit einer Zuleitung für Zusatzstoffe,
- Fig. 5
- die Mischanlage der Fig. 1 mit Pufferrohr und Niveauregulierung,
- Fig. 6
- die Mischanlage der Fig. 5 mit ergänzender Zuleitung für Zusatzstoffe.
Claims (15)
- Mischanlage zum Herstellen einer Bohrflüssigkeit für Horizontalbohrverfahren miteiner Hochdruckpumpe (7) undeiner Zuleitung (21) für das Zugabemedium, die in Flußrichtung vor der Hochdruckpumpe (7) angeordnet ist.
- Mischanlage nach Anspruch 1, dadurch gekennzeichnet, daß die Zuleitung für das Zugabemedium in Flußrichtung nicht vor, sondern hinter der Hochdruckpumpe (7) angeordnet ist.
- Mischanlage nach Anspruch 1, dadurch gekennzeichnet, daß das Zugabemedium in einem Pufferbehälter (23), der vor der Hochdruckpumpe (7) angeordnet ist, in das Brauchwasser eingeleitet wird und der Pufferbehälter (23) eine Niveauregulierung (a, b) aufweist.
- Mischanlage nach Anspruch 2, dadurch gekennzeichnet, daß das Zugabemedium unmittelbar hinter einer Wasserstrahldüse (22) der Hochdruckpumpe (7) in das Brauchwasser eingeleitet wird.
- Mischanlage nach Anspruch 4, dadurch gekennzeichnet, daß die Wasserstrahldüse (22) verstellbar ist.
- Mischanlage nach einem der vorhergehenden Ansprüche, gekennzeichnet durch eine Fördereinrichtung (6) für die Zufuhr des Zugabemediums.
- Mischanlage nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Fördereinrichtung (6) und/oder die Hochdruckpumpe (7) einen regelbaren Antrieb (24) aufweist.
- Mischanlage nach einem der vorhergehenden Ansprüche, gekennzeichnet durch ein Absperrventil (14), welches zusammen mit den regelbaren Antrieben über eine Steuerelektronik (1) und mit Hilfe von Stellgliedem (4) und eines Durchflußsensors (8) geregelt wird.
- Mischanlage nach einem der vorhergehenden Ansprüche, gekennzeichnet durch eine Mischstrecke (15) hinter der Pumpe (7).
- Mischanlage nach Anspruch 9, gekennzeichnet durch eine statische Mischstrecke (15).
- Mischanlage nach einem der vorhergehenden Ansprüche, gekennzeichnet durch eine hinter der Pumpe (7) angeordnete Quellstrecke (16).
- Mischanlage nach Anspruch 11, dadurch gekennzeichnet, daß die Quellstrecke (16) aus einem Rohrwendel besteht.
- Mischanlage nach Anspruch 11, dadurch gekennzeichnet, daß die Quellstrecke (16) aus dem Bohrgestänge gebildet ist.
- Mischanlage nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Antrieb der Mischanlage hydraulisch erfolgt.
- Verfahren zum Herstellen einer Bohrflüssigkeit, dadurch gekennzeichnet, daß das Zugabemedium dem Brauchwasser vor oder hinter einer Hochdruckpumpe (7) zugeleitet wird.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29818289U DE29818289U1 (de) | 1998-10-14 | 1998-10-14 | Durchlauf-Mischanlage |
DE29818289U | 1998-10-14 | ||
DE19918775A DE19918775B4 (de) | 1998-10-14 | 1999-04-24 | Durchlauf-Mischanlage und Verfahren zum Herstellen einer Bohrflüssigkeit |
DE19918775 | 1999-04-24 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0994235A2 true EP0994235A2 (de) | 2000-04-19 |
EP0994235A3 EP0994235A3 (de) | 2002-01-30 |
EP0994235B1 EP0994235B1 (de) | 2004-12-29 |
Family
ID=26053078
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99120187A Expired - Lifetime EP0994235B1 (de) | 1998-10-14 | 1999-10-09 | Durchlauf-Mischanlage für Bohrflüssigkeit |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0994235B1 (de) |
AU (1) | AU762491C (de) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6588516B2 (en) | 1999-03-03 | 2003-07-08 | Vermeer Manufacturing Company | Method and apparatus for directional boring under mixed conditions |
US7878705B2 (en) | 2000-04-20 | 2011-02-01 | Tt Schmidt Gmbh | Static mixing element and method of mixing a drilling liquid |
US8196677B2 (en) | 2009-08-04 | 2012-06-12 | Pioneer One, Inc. | Horizontal drilling system |
CN103739108A (zh) * | 2013-06-24 | 2014-04-23 | 四川海普流体技术有限公司 | 一种污水处理工艺中加入添加剂的方法 |
CN104633452A (zh) * | 2015-03-10 | 2015-05-20 | 汤晓辉 | 水泥浆液远距离输送防沉积装置 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108222865B (zh) * | 2018-01-04 | 2021-02-26 | 中国石油大学(华东) | 自反馈三相体系钻井液混合系统及混合钻井液的方法 |
CN111088955B (zh) * | 2019-12-27 | 2021-09-28 | 四川石油天然气建设工程有限责任公司 | 一种钻井液储备工作站 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2631017A (en) * | 1947-05-05 | 1953-03-10 | Gibson Roy Clyde | Mud and chemical mixer |
US3115195A (en) * | 1961-08-28 | 1963-12-24 | Jersey Prod Res Co | Method of reducing viscosity of drilling fluids during drilling |
US3691070A (en) * | 1970-04-27 | 1972-09-12 | Nat Lead Co | Employment of bentonite in brine muds |
US4444277A (en) * | 1981-09-23 | 1984-04-24 | Lewis H Roger | Apparatus and method for conditioning oil well drilling fluid |
US5213414A (en) * | 1989-12-04 | 1993-05-25 | Baker Hughes Incorporated | Mixing apparatus |
DE4217373A1 (de) * | 1992-05-26 | 1993-12-16 | Klaus Obermann Gmbh | Vorrichtung zur Aufbereitung von wenigstens einen flüssigen Bestandteil enthaltenden Mischungen oder Suspensionen |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3893655A (en) * | 1972-07-10 | 1975-07-08 | Union Oil Co | Apparatus and method for dispersing solid particles in a liquid |
SU1755907A1 (ru) * | 1990-04-20 | 1992-08-23 | Всесоюзный научно-исследовательский институт по креплению скважин и буровым растворам Научно-производственного объединения "Бурение" | Смеситель |
WO1999054588A1 (en) * | 1998-04-21 | 1999-10-28 | Bulk Mixer, Inc. | Drilling fluid mixing apparatus and methods |
-
1999
- 1999-10-06 AU AU53489/99A patent/AU762491C/en not_active Ceased
- 1999-10-09 EP EP99120187A patent/EP0994235B1/de not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2631017A (en) * | 1947-05-05 | 1953-03-10 | Gibson Roy Clyde | Mud and chemical mixer |
US3115195A (en) * | 1961-08-28 | 1963-12-24 | Jersey Prod Res Co | Method of reducing viscosity of drilling fluids during drilling |
US3691070A (en) * | 1970-04-27 | 1972-09-12 | Nat Lead Co | Employment of bentonite in brine muds |
US4444277A (en) * | 1981-09-23 | 1984-04-24 | Lewis H Roger | Apparatus and method for conditioning oil well drilling fluid |
US5213414A (en) * | 1989-12-04 | 1993-05-25 | Baker Hughes Incorporated | Mixing apparatus |
DE4217373A1 (de) * | 1992-05-26 | 1993-12-16 | Klaus Obermann Gmbh | Vorrichtung zur Aufbereitung von wenigstens einen flüssigen Bestandteil enthaltenden Mischungen oder Suspensionen |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6588516B2 (en) | 1999-03-03 | 2003-07-08 | Vermeer Manufacturing Company | Method and apparatus for directional boring under mixed conditions |
USRE44427E1 (en) | 1999-03-03 | 2013-08-13 | Vermeer Manufacturing Company | Apparatus for directional boring under mixed conditions |
US7878705B2 (en) | 2000-04-20 | 2011-02-01 | Tt Schmidt Gmbh | Static mixing element and method of mixing a drilling liquid |
US8196677B2 (en) | 2009-08-04 | 2012-06-12 | Pioneer One, Inc. | Horizontal drilling system |
US8746370B2 (en) | 2009-08-04 | 2014-06-10 | Pioneer One, Inc. | Horizontal drilling system |
CN103739108A (zh) * | 2013-06-24 | 2014-04-23 | 四川海普流体技术有限公司 | 一种污水处理工艺中加入添加剂的方法 |
CN103739108B (zh) * | 2013-06-24 | 2016-03-02 | 四川海普流体技术有限公司 | 一种污水处理工艺中加入添加剂的方法 |
CN104633452A (zh) * | 2015-03-10 | 2015-05-20 | 汤晓辉 | 水泥浆液远距离输送防沉积装置 |
Also Published As
Publication number | Publication date |
---|---|
AU5348999A (en) | 2000-04-20 |
AU762491B2 (en) | 2003-06-26 |
AU762491C (en) | 2005-02-17 |
EP0994235A3 (de) | 2002-01-30 |
EP0994235B1 (de) | 2004-12-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE19918775B4 (de) | Durchlauf-Mischanlage und Verfahren zum Herstellen einer Bohrflüssigkeit | |
EP0160805B1 (de) | Verfahren zur Rückgewinnung von Rohöl oder Raffinerieprodukten aus zu schlammigem verdicktem bis kompaktem, sedimentiertem Rohöl oder Raffinerieprodukten, sowie Vorrichtung zur Durchführung des Verfahrens | |
DE2735602C2 (de) | Vorrichtung und Verfahren zum Steuern des Mengenstroms durch eine Förderleitung und zur Injektion eines chemischen Mediums in die Förderleitung | |
DE60221414T2 (de) | Verfahren zur bohrloch-flüssigkeitsbehandlung und pumpengestänge dafür | |
DE1962343A1 (de) | Verfahren und Vorrichtung zum Herstellen und Ausgeben eines halbgefrorenen kohlensaeurehaltigen Getraenkes | |
DE60216793T2 (de) | Flüssigkeitsdichtung für nassankerbohrer | |
DE2655453A1 (de) | Vorrichtung zum mischen von materialien | |
EP0994235B1 (de) | Durchlauf-Mischanlage für Bohrflüssigkeit | |
EP0293584B1 (de) | Bohrvorrichtung für ein Hochdruck-Injektions-Bohrverfahren | |
DE10115233C5 (de) | Horizontalbohranlage | |
DE4400100A1 (de) | Liefervorrichtung | |
DE8120151U1 (de) | In brunnen einsetzbares geraet zum reinigen des brunnenfilters und der diesen umgebenden kieshinterfuellung | |
DE102005004264A1 (de) | Vorrichtung und Verfahren zur Herstellung und zum Ausbringen von flüssigem, bituminösem Kaltmischgut | |
DE1557980A1 (de) | Duengerstreuer | |
DE102017005798B3 (de) | Mischanlage und Verfahren zum Herstellen einer Bohrflüssigkeit für eine Erdbohrung sowie Verwendung beim Herstellen einer Bohrflüssigkeit für eine Erdbohrung | |
EP2666911B1 (de) | Verfahren zum Herstellen einer Bodenmörtelwand im Boden | |
EP0690953B1 (de) | Bohrvorrichtung mit bohrgestänge und senkhammer-bohrkopf | |
DE3029963A1 (de) | Duese und verfahren zum stroemungsmittelstrahl-bohren | |
EP0924149A2 (de) | Verfahren zum hydraulischen Fördern eines Schüttgutes | |
EP4186602B1 (de) | Verfahren und vorrichtung zur reinigung von rohrleitungen oder systemen mittels modulierenden druckgasimpulsen | |
DE2931177C2 (de) | Verfahren und Vorrichtung zum Abteufen eines Gefrierschachtes | |
EP3530871B1 (de) | Vorrichtung zum erzeugen oder aufweiten einer erdbohrung | |
DE19717971C1 (de) | Verfahren zur Herstellung eines hydraulisch förderbaren Feststoff-Flüssigkeits-Gemisches | |
DE2232510C3 (de) | Anlage zum Klären von öl- und emulsionshaltigen Abwässern | |
DE2925790C2 (de) | Einrichtung zum Zubereiten und Zuführen einer ein Schleifmittel enthaltenden Suspension zum Wirkungsbereich der Werkzeuge von Polier- und Läppmaschinen |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE Kind code of ref document: A2 Designated state(s): CH GB LI |
|
AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
17P | Request for examination filed |
Effective date: 20020726 |
|
AKX | Designation fees paid |
Free format text: CH GB LI |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: 8566 |
|
17Q | First examination report despatched |
Effective date: 20021018 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): CH GB LI |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: GERMAN |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 20050317 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20051031 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20051031 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20050930 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20141024 Year of fee payment: 16 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20151009 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20151009 |