WO1994004885A1 - Process for sinking and sealing a blast hole - Google Patents

Process for sinking and sealing a blast hole Download PDF

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Publication number
WO1994004885A1
WO1994004885A1 PCT/DE1993/000743 DE9300743W WO9404885A1 WO 1994004885 A1 WO1994004885 A1 WO 1994004885A1 DE 9300743 W DE9300743 W DE 9300743W WO 9404885 A1 WO9404885 A1 WO 9404885A1
Authority
WO
WIPO (PCT)
Prior art keywords
suspension
blast hole
borehole
filled
sealing
Prior art date
Application number
PCT/DE1993/000743
Other languages
German (de)
French (fr)
Inventor
Peter Mielenz
Original Assignee
Preussag Anlagenbau Gmbh
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 Preussag Anlagenbau Gmbh filed Critical Preussag Anlagenbau Gmbh
Priority to DE4393917T priority Critical patent/DE4393917D2/en
Priority to AU49418/93A priority patent/AU4941893A/en
Priority to EP94908201A priority patent/EP0885372B1/en
Priority to PL93312381A priority patent/PL171842B1/en
Priority to DE59310120T priority patent/DE59310120D1/en
Publication of WO1994004885A1 publication Critical patent/WO1994004885A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42D—BLASTING
    • F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
    • F42D1/08—Tamping methods; Methods for loading boreholes with explosives; Apparatus therefor
    • F42D1/24—Tamping methods; Methods for loading boreholes with explosives; Apparatus therefor characterised by the tamping material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42D—BLASTING
    • F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
    • F42D1/08—Tamping methods; Methods for loading boreholes with explosives; Apparatus therefor
    • F42D1/12—Feeding tamping material by pneumatic or hydraulic pressure

Definitions

  • the invention relates to a method for sinking and sealing a blast hole for seismic exploration of a ground formation, in which the blast hole is drilled in the direct flushing drilling method and filled with a sealing material.
  • Drilling fluids with polymeric additives are used to stabilize the borehole and to discharge the drilling material. Nevertheless, depending on the stability of the drilled layers, falling and washing up can lead to borehole widening of up to 70%, based on the diameter of the drill bit.
  • an explosive cartridge is placed on the bottom of the borehole through the borehole still in the borehole. adorned and then filled the hole after pulling the rod.
  • cardboard sleeves filled with bentonite are said to swell up to the existing borehole diameter and to seal the bore mechanically and hydraulically.
  • the invention is based on the object of specifying a method of the type mentioned at the beginning which improves the sinking and closing of blasting holes with regard to the requirements mentioned at the outset.
  • this object is achieved in that a slowly hydraulically hardening suspension of water and a fine-grained mixture of clay minerals and hydraulic binder is used as the drilling fluid and that the blasting hole is filled with the suspension after its completion and the use of the explosive charge, and then the The suspension in the blast hole sets into a tight and firm stopper.
  • the method according to the invention is characterized by a number of advantages which considerably simplify and reduce the cost of producing explosive bores.
  • the use of a suspension suitable as drilling fluid and backfill material considerably reduces the material requirement and the workload, especially for filling the blast holes, is significantly reduced.
  • the production of the suspension is comparable to the production of suitable drilling fluids and therefore requires no additional effort. There is no need to use expensive rinses and chemicals.
  • the suspension provides support for the borehole and, by penetrating the suspension into the boundary layer of the soil adjacent to the borehole, a filter cake is formed which prevents the suspension mass from flowing out of the borehole.
  • the suspension After loading the blast hole and pulling the drill pipe, the suspension completely fills the borehole, so that hardening of the suspension, preferably in a period of 48 hours, forms a solid, dense body which closes the borehole securely and seals the drilled soil layers against each other in the required manner.
  • the work required to fill the borehole since then has been eliminated. Only the displacement volume of the drill pipe can be compensated for by refilling the suspension. Because of its flowability, the suspension completely fills the borehole and thereby avoids disadvantages of incomplete filling, as can result from the known methods.
  • the suspension is adjusted so that the pressure resistance of the stopper reaches 0.4-0.8 N / mm 2 after setting.
  • the permeability of the erhärte ⁇ th suspension should be according to the invention at least 10 "8 m / s.
  • the density of the suspension should preferably be approximately 1.2 kg / 1 in order to obtain a favorable flushing behavior when sinking the bore.
  • the suspension contains bentonite activated as clay mineral. The properties of the bentonite mean that the plug can be adequately stable and sealed with a comparatively low cost of material.
  • the mixture of clay minerals and binding agent can be dispersed in the water to produce the suspension with the aid of the drilling pump's flushing pump. Additional devices or facilities are therefore not required.
  • the explosive charge in the borehole is covered with a bed of gravel or drillings. As a result, an additional securing of the explosive charge is achieved, especially in the case of shallow explosive bores.
  • a fine-grained mixture of activated bentonite and hydraulic binder, preferably cement is poured into a water reservoir of 400-100 kg and poured in for 6 minutes using the Piston pump of the drilling rig dispersed.
  • the result is a stable suspension with a density of 1.2 kg / 1, which is used as drilling fluid when sinking the borehole and, in addition to stabilizing the borehole, also serves to discharge the cuttings.

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  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Earth Drilling (AREA)
  • Soil Conditioners And Soil-Stabilizing Materials (AREA)

Abstract

A process is disclosed for sinking and sealing a blast hole for the seismic reconnaissance of geologic formations. The blast hole is sunk by a direct flush drilling process and is filled with a sealing material. As drilling fluid a slowly hardening hydraulic suspension made of water and a finely granulated mixture of clay minerals and hydraulic binder is used. After the blast hole is finished and the charge of explosives is introduced therein, the blast hole is filled with the suspension set so that it cures within 48 hours within the blast hole into a tight and solid stopper.

Description

Verfahren zum Teufen und Abdichten einer Sprengbohrung Method of sinking and sealing an explosive well
Die Erfindung betrifft ein Verfahren zum Teufen und Abdich¬ ten einer Sprengbohrung für die seismische Erkundung einer Bodenformation, bei dem die Sprengbohrung im direkten Spül¬ bohrverfahren niedergebracht und mit einem dichtenden Mate¬ rial verfüllt wird.The invention relates to a method for sinking and sealing a blast hole for seismic exploration of a ground formation, in which the blast hole is drilled in the direct flushing drilling method and filled with a sealing material.
Zur seismischen Erkundung geologischer Gegebenheiten werden u.a. durch Sprengungen elastische Wellen im Boden erzeugt, deren Form und Ausbreitung beobachtet und aufgezeichnet wird. Die Sprengladungen werden üblicherweise in einem Bohr- loch gezündet, dessen Tiefe 10 - 50 m betragen kann. Aus Gründen der Arbeitssicherheit und zum Schutz von Grundwas¬ servorkommen sind Sprengbohrungen nach dem Einbau der Sprengladung so zu verfüllen, daß eine Sicherung der Spreng¬ ladung gegen Diebstahl, eine Sicherung der Geländeoberfläche gegen Setzungen und eine hydraulische Abdichtung durch das Verfüllmaterial gegeben ist, letzteres um vertikale Wasser¬ strömungen und somit ein Zusammenfließen von Wässern unter¬ schiedlicher Güte zu vermeiden.For seismic exploration of geological conditions, i.a. through explosions, elastic waves are generated in the ground, the shape and spread of which are observed and recorded. The explosive charges are usually detonated in a borehole, the depth of which can be 10 - 50 m. For reasons of occupational safety and to protect the groundwater supply, blasting holes have to be filled after the installation of the explosive charge in such a way that the explosive charge is secured against theft, the terrain surface is secured against settlement and a hydraulic seal is provided by the backfill material, the latter to avoid vertical water flows and thus a confluence of waters of different qualities.
Es ist bekannt, Sprengbohrungen im direkten Spülbohrverfah¬ ren niederzubringen. Hierbei werden zur Stabilisierung des Bohrlochs und zum Austragen des Bohrguts Bohrspülungen mit polymeren Zusätzen verwendet. Dennoch kann es je nach Stand¬ festigkeit der erbohrten Schichten durch Nachfall und Abwa- schungen zu Bohrlochaufweitungen von bis zu 70 %, bezogen auf den Durchmesser des Bohrmeißels, kommen. Nach dem Abteu¬ fen der Bohrung wird durch das noch im Bohrloch befindliche Bohrgestänge eine Sprengpatrone auf der Bohrlochsohle pla- ziert und anschließend nach dem Ziehen des Gestänges das Bohrloch verfüllt. Um beim Verfüllen die erforderliche Ab¬ dichtung zu erzielen, ist es bekannt, mit Bentonit gefüllte Papphülsen in die Bohrung einzubringen. Die Bentonitstangen sollen bis auf den vorhandenen Bohrlochdurchmesser aufquel¬ len und die Bohrung mechanisch und hydraulisch wirksam dich¬ ten. Bei BohrlochaufWeitungen ist diese Wirkung jedoch häu¬ fig nicht gewährleistet. Weiterhin ist es bekannt, Quellton in granulierter Form als Verfüllungsmaterial zu verwenden. Das Einfüllen dieses Materials ist allerdings schwierig, da es im Bohrloch zu Brückenbildungen kommen kann. Untere Bohr¬ lochbereiche werden daher nicht mit ausreichender Sicherheit erfaßt. Das Verfahren ist außerdem teuer, da größere Tonmen¬ gen verfüllt werden müssen, als es aufgrund der Quellfähig- keit des Tones erforderlich wäre. Es ist weiterhin bekannt, das erbohrte Bohrgut wieder in das Bohrloch hineinzugeben. Die erforderliche Abdichtung läßt sich hierbei aber nicht erreichen.It is known to drill explosive wells in the direct flushing drilling method. Drilling fluids with polymeric additives are used to stabilize the borehole and to discharge the drilling material. Nevertheless, depending on the stability of the drilled layers, falling and washing up can lead to borehole widening of up to 70%, based on the diameter of the drill bit. After the borehole has been sunk, an explosive cartridge is placed on the bottom of the borehole through the borehole still in the borehole. adorned and then filled the hole after pulling the rod. In order to achieve the required sealing when filling, it is known to insert cardboard sleeves filled with bentonite into the bore. The bentonite rods are said to swell up to the existing borehole diameter and to seal the bore mechanically and hydraulically. However, this effect is often not guaranteed when the borehole is widened. It is also known to use swelling clay in granulated form as backfill material. Filling this material is difficult, however, as bridges can form in the borehole. Lower borehole areas are therefore not detected with sufficient certainty. The process is also expensive because larger amounts of clay have to be filled in than would be required due to the clay's ability to swell. It is also known to put the drilled drilling material back into the borehole. The required sealing cannot be achieved here.
Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren der eingangs genannten Art anzugeben, welches das Abteufen und Verschließen von Sprengbohrungen hinsichtlich der eingangs genannten Anforderungen verbessert.The invention is based on the object of specifying a method of the type mentioned at the beginning which improves the sinking and closing of blasting holes with regard to the requirements mentioned at the outset.
Erfindungsgemäß wird diese Aufgabe dadurch gelöst, daß als Bohrspülung eine langsam hydraulisch erhärtende Suspension aus Wasser und einer feinkörnigen Mischung aus Tonmineralien und hydraulischem Bindemittel verwendet wird und daß die Sprengbohrung nach ihrer Fertigstellung und dem Einsetzen der Sprengladung mit der Suspension verfüllt wird und an¬ schließend die Suspension in der Sprengbohrung zu einem dichten und festen Stopfen abbindet. Das erfindungsgemäße Verfahren zeichnet sich durch eine Reihe von Vorteilen aus, die das Herstellen von Sprengboh¬ rungen wesentlich vereinfachen und verbilligen. So wird durch die Verwendung einer als Bohrspülung und Verfüllmate- rial geeigneten Suspension der Materialbedarf erheblich reduziert und der Arbeitsaufwand, vor allem für das Verfül- len der Sprengbohrungen, wesentlich vermindert. Das Herstel¬ len der Suspension ist dem Herstellen geeigneter Bohrspülun¬ gen vergleichbar und erfordert daher keinen zusätzlichen Aufwand. Auf den Einsatz teurer Spülungen und Chemikalien kann verzichtet werden. Beim Bohrvorgang sorgt die Suspen¬ sion für eine Stützung des Bohrlochs und durch das Eindrin¬ gen der Suspension in die dem Bohrloch benachbarte Grenz¬ schicht des Bodens bildet sich ein Filterkuchen aus, der das Abfließen von Suspensionsmasse aus dem Bohrloch verhindert. Nach dem Laden der Sprengbohrung und dem Ziehen des Bohr¬ gestänges füllt die Suspension das Bohrloch vollständig aus, so daß durch das Erhärten der Suspension, vorzugsweise in einem Zeitraum von 48 Stunden, ein fester, dichter Körper gebildet wird, der das Bohrloch sicher verschließt und die durchbohrten Bodenschichten in der erforderlichen Weise gegeneinander abdichtet. Der seither erforderliche Arbeits¬ aufwand für das Verfüllen des Bohrlochs entfällt. Lediglich das Verdrängungsvolumen des Bohrgestänges ist durch Nachfül- len von Suspension auszugleichen. Aufgrund ihrer Fließfähig¬ keit füllt die Suspension das Bohrloch vollständig aus und vermeidet dadurch Nachteile unvollständiger Verfullung, wie sie sich bei den bekannten Verfahren ergeben können.According to the invention, this object is achieved in that a slowly hydraulically hardening suspension of water and a fine-grained mixture of clay minerals and hydraulic binder is used as the drilling fluid and that the blasting hole is filled with the suspension after its completion and the use of the explosive charge, and then the The suspension in the blast hole sets into a tight and firm stopper. The method according to the invention is characterized by a number of advantages which considerably simplify and reduce the cost of producing explosive bores. The use of a suspension suitable as drilling fluid and backfill material considerably reduces the material requirement and the workload, especially for filling the blast holes, is significantly reduced. The production of the suspension is comparable to the production of suitable drilling fluids and therefore requires no additional effort. There is no need to use expensive rinses and chemicals. During the drilling process, the suspension provides support for the borehole and, by penetrating the suspension into the boundary layer of the soil adjacent to the borehole, a filter cake is formed which prevents the suspension mass from flowing out of the borehole. After loading the blast hole and pulling the drill pipe, the suspension completely fills the borehole, so that hardening of the suspension, preferably in a period of 48 hours, forms a solid, dense body which closes the borehole securely and seals the drilled soil layers against each other in the required manner. The work required to fill the borehole since then has been eliminated. Only the displacement volume of the drill pipe can be compensated for by refilling the suspension. Because of its flowability, the suspension completely fills the borehole and thereby avoids disadvantages of incomplete filling, as can result from the known methods.
Erfindungsgemäß wird die Suspension so eingestellt, daß die Druckfestigkeit des Stopfens nach dem Abbinden 0,4 - 0,8 N/mm2 erreicht. Der Durchlässigkeitsbeiwert der erhärte¬ ten Suspension sollte erfindungsgemäß wenigstens 10"8m/s betragen. Die Dichte der Suspension sollte vorzugsweise ca. 1,2 kg/1 betragen, um ein günstiges Spülverhalten beim Abteufen der Bohrung zu erhalten. Erfindungsgemäß kann weiterhin vorgese¬ hen sein, daß die Suspension als Tonmineral aktivierten Bentonit enthält. Durch die Eigenschaften des Bentonit läßt sich mit vergleichsweise geringem Materialaufwand eine aus¬ reichende Stabilität und Dichtigkeit des Stopfens erreichen.According to the invention, the suspension is adjusted so that the pressure resistance of the stopper reaches 0.4-0.8 N / mm 2 after setting. The permeability of the erhärte¬ th suspension should be according to the invention at least 10 "8 m / s. The density of the suspension should preferably be approximately 1.2 kg / 1 in order to obtain a favorable flushing behavior when sinking the bore. According to the invention it can further be provided that the suspension contains bentonite activated as clay mineral. The properties of the bentonite mean that the plug can be adequately stable and sealed with a comparatively low cost of material.
Das Dispergieren der Mischung aus Tonmineralien und Binde- mittel im Wasser zur Herstellung der Suspension kann nach einem weiteren Vorschlag der Erfindung mit Hilfe der Spü¬ lungspumpe der Bohranlage erfolgen. Zusätzliche Geräte oder Einrichtungen sind daher nicht erforderlich. Erfindungsgemäß kann auch vorgesehen sein, daß die Sprengladung im Bohrloch mit einer Schüttung aus Kies oder Bohrgut abgedeckt wird. Hierdurch wird vor allem bei flachen Sprengbohrungen eine zusätzliche Sicherung der Sprengladung erreicht.According to a further proposal of the invention, the mixture of clay minerals and binding agent can be dispersed in the water to produce the suspension with the aid of the drilling pump's flushing pump. Additional devices or facilities are therefore not required. According to the invention it can also be provided that the explosive charge in the borehole is covered with a bed of gravel or drillings. As a result, an additional securing of the explosive charge is achieved, especially in the case of shallow explosive bores.
Das erfindungsgemäße Verfahren wird nachfolgend anhand eines Beispiels näher erläutert.The method according to the invention is explained in more detail below using an example.
Zur Herstellung einer Sprengbohrung mit einer Teufe von 12 m und einem Bohrungsdurchmesser von 75 mm werden in eine Was¬ servorlage von 400 1 100 kg einer feinkörnigen Mischung aus aktiviertem Bentonit und hydraulischem Bindemittel, vorzugs¬ weise Zement, eingefüllt und 6 Minuten lang mit Hilfe der Kolbenpumpe der Bohranlage dispergiert. Es entsteht eine stabile Suspension mit einer Dichte von 1,2 kg/1, die als Bohrspülung beim Abteufen der Bohrung eingesetzt wird und neben der Stabilisierung des Bohrlochs zum Austrag des Bohr- kleins dient.To produce a blast hole with a depth of 12 m and a hole diameter of 75 mm, a fine-grained mixture of activated bentonite and hydraulic binder, preferably cement, is poured into a water reservoir of 400-100 kg and poured in for 6 minutes using the Piston pump of the drilling rig dispersed. The result is a stable suspension with a density of 1.2 kg / 1, which is used as drilling fluid when sinking the borehole and, in addition to stabilizing the borehole, also serves to discharge the cuttings.
Nach dem Abteufen der Bohrung wird durch das noch im Bohr¬ loch befindliche Bohrgestänge eine Sprengpatrone auf der Bohrlochsohle plaziert. Anschließend wird das Gestänge gezo¬ gen und die Sprengpatrone durch Überschütten mit Kies oder Bohrgut gesichert. Soweit erforderlich, wird danach das Bohrloch vollständig mit Suspension verfüllt. Die Suspension bindet innerhalb von 48 Stunden ab und bildet dadurch einen dichten und festen Stopfen aus, der das Bohrloch vollständig verschließt. Als Druckfestigkeit des Stopfens wurden Werte von 0,4 - 0,8 N/mm2 erreicht. Der Durchlässigkeitsbeiwert Kf lag zwischen 10"8 und lO^O m/s. Die erhärtete Masse des Stopfens besteht dabei etwa aus 23 Gew.-% Feststoff und 77 Gew.-% Wasser. After the borehole has been sunk, an explosive cartridge is placed on the Hole bottom placed. The rod is then pulled and the explosive cartridge is secured by pouring gravel or drillings over it. If necessary, the borehole is then completely filled with suspension. The suspension sets within 48 hours, thereby forming a tight and firm stopper that completely seals the borehole. Values of 0.4-0.8 N / mm 2 were achieved as the compressive strength of the stopper. The permeability coefficient Kf was between 10 8 and 10 ^ m / s. The hardened mass of the stopper consists approximately of 23% by weight of solid and 77% by weight of water.

Claims

Patentansprüche Claims
1. Verfahren zum Teufen und Abdichten einer Sprengbohrung für die seismische Erkundung einer Bodenformation, bei dem die Sprengbohrung im direkten Spülbohrverfahren niedergebracht und mit einem dichtenden Material ver¬ füllt wird, dadurch gekennzeichnet, daß als Bohrspülung eine langsam hydraulisch erhärtende Suspension aus Wasser und einer feinkörnigen Mischung aus Tonminera¬ lien und hydraulischem Bindemittel verwendet wird und daß die Sprengbohrung nach ihrer Fertigstellung und dem Einsetzen der Sprengladung mit der Suspension verfüllt wird und anschließend die Suspension in der Sprengboh¬ rung zu einem dichten und festen Stopfen abbindet.1. A method for sinking and sealing a blast hole for seismic exploration of a ground formation, in which the blast hole is drilled in the direct flushing drilling method and filled with a sealing material, characterized in that a slowly hydraulically hardening suspension of water and a fine-grained suspension is used as the drilling fluid Mixture of clay minerals and hydraulic binder is used and that the blast hole is filled with the suspension after its completion and the onset of the explosive charge and then the suspension sets in the blast hole to form a tight and solid stopper.
2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Suspension so eingestellt wird, daß sie innerhalb von 48 Stunden in dem Bohrloch abbindet.2. The method according to claim 1, characterized in that the suspension is adjusted so that it sets within 48 hours in the borehole.
3. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Druckfestigkeit des durch die Suspension gebildeten Stopfens 0,4 - 0,8 N/mm2 erreicht.3. The method according to any one of the preceding claims, characterized in that the compressive strength of the stopper formed by the suspension reaches 0.4 - 0.8 N / mm 2 .
4. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Suspension eine Dichte von ca. 1,2 kg/1 hat.4. The method according to any one of the preceding claims, characterized in that the suspension has a density of approximately 1.2 kg / 1.
Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Suspension so einge¬ stellt wird, daß nach dem Erhärten ein Durchlässig¬ keitsbeiwert Kf von 10"8 m/s erreicht wird. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Suspension als Tonmine¬ ral aktivierten Bentonit und als Bindemittel Zement enthält.Method according to one of the preceding claims, characterized in that the suspension is so einge¬ provides that after hardening a Durchlässig¬ keitsbeiwert Kf of 10 "8 m / s is reached. Method according to one of the preceding claims, characterized in that the suspension contains bentonite activated as clay mineral and cement as binder.
Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Dispergieren der Mischung aus Tonmineralien und Bindemittel im Wasser mit Hilfe einer Spülungspumpe erfolgt.Method according to one of the preceding claims, characterized in that the mixture of clay minerals and binder is dispersed in the water with the aid of a flushing pump.
Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Sprengladung mit einer Schüttung aus Kies oder Bohrgut abgedeckt wird. Method according to one of the preceding claims, characterized in that the explosive charge is covered with a bed of gravel or drillings.
PCT/DE1993/000743 1992-08-21 1993-08-18 Process for sinking and sealing a blast hole WO1994004885A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE4393917T DE4393917D2 (en) 1992-08-21 1993-08-18 Method of sinking and sealing an explosive well
AU49418/93A AU4941893A (en) 1992-08-21 1993-08-18 Process for sinking and sealing a blast hole
EP94908201A EP0885372B1 (en) 1992-08-21 1993-08-18 Process for sinking and sealing a blast hole
PL93312381A PL171842B1 (en) 1992-08-21 1993-08-18 Method of drilling and sealing the shot-holes
DE59310120T DE59310120D1 (en) 1992-08-21 1993-08-18 METHOD FOR DEVENING AND SEALING A BLASTING HOLE

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4227724A DE4227724A1 (en) 1992-08-21 1992-08-21 Method of sinking and sealing an explosive well
DEP4227724.8 1992-08-21

Publications (1)

Publication Number Publication Date
WO1994004885A1 true WO1994004885A1 (en) 1994-03-03

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Country Status (5)

Country Link
EP (1) EP0885372B1 (en)
AU (1) AU4941893A (en)
DE (3) DE4227724A1 (en)
PL (1) PL171842B1 (en)
WO (1) WO1994004885A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998055805A1 (en) * 1997-06-05 1998-12-10 Nitro Nobel Ab Method and apparatus for charging boreholes with explosives

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8627769B2 (en) * 2010-04-23 2014-01-14 Minova International Limited Cementitious compositions
FR3069631B1 (en) * 2017-07-27 2019-09-06 David Eberard METHOD FOR MANUFACTURING HOUSING HOUSING BODY, HOUSING BODY AND USE OF COMPOSITION AS SHUTTER MATERIAL

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR884628A (en) * 1942-03-25 1943-08-23 Cie Ingersoll Rand Blast hole tamping method and apparatus for its implementation
FR1154328A (en) * 1955-07-08 1958-04-04 Hercules Powder Co Ltd Firing process
FR1277035A (en) * 1960-12-30 1961-11-24 Method for blasting and plugging blastholes, and device used for its implementation
JPS55140745A (en) * 1979-04-23 1980-11-04 Taisei Corp Inorganic slurry caking method
SU834331A1 (en) * 1979-10-02 1981-06-10 Всесоюзный Научно-Исследовательскийинститут По Креплению Скважин Ибуровым Pactbopam Composition for isolating absrption zones
US4463808A (en) * 1982-06-10 1984-08-07 Nl Industries, Inc. Method for effecting seals in earth boreholes
US4548266A (en) * 1984-01-20 1985-10-22 The United States Of America As Represented By The United States Department Of Energy Method for isolating two aquifers in a single borehole
US4662451A (en) * 1985-06-07 1987-05-05 Phillips Petroleum Company Method of fracturing subsurface formations
NL8602057A (en) * 1986-08-12 1988-03-01 C K S Nederland B V Mixt. for sealing wall of borehole in underground formation, - contg. bentonite, hydraulic cement, slaked lime and sodium carbonate
SU1384793A1 (en) * 1986-08-20 1988-03-30 Институт Геотехнической Механики Ан Усср Method of driving workings in outburst-hazardous rock
SU1633092A1 (en) * 1988-04-22 1991-03-07 Туркменский государственный научно-исследовательский и проектный институт нефтяной промышленности Foamed-cement plugging composition

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1050708B (en) * 1959-02-19 Socony Mobil Oil Company, Inc., New York, N. Y. (V. St. A.) Filling compound for damming boreholes in oil wells
DE926093C (en) * 1953-04-22 1955-04-07 Prakla Gmbh Procedure for seismic soil research
SU436307A1 (en) * 1971-03-16 1974-07-15 М. А. Завесин DEVICE FOR EXCITING SEISMIC WAVES IN THE WELL
SU584267A1 (en) * 1975-04-10 1977-12-15 Специальное Конструкторско-Технологическое Бюро Научно-Производственного Объединения "Лакокраспокрытие" Complementary shells of borehole charge for seismic prospecting
US4289632A (en) * 1979-09-20 1981-09-15 Phillips Petroleum Company Lost circulation material for sealing permeable formations
SU851299A1 (en) * 1979-10-25 1981-07-30 Ордена Трудового Красного Знамениинститут Геологических Наук Им. K.И.Сатпаева Ah Казахской Ccp Device for switching excitation source group in seismic prospecting
SU857893A1 (en) * 1979-12-07 1981-08-23 Вычислительный Центр Со Ан Ссср Method of seismic wave excitation
SU1046274A1 (en) * 1982-02-23 1983-10-07 Всесоюзный Ордена Трудового Красного Знамени Научно-Исследовательский Институт Буровой Техники Structurizing agent for invert-emulsion drilling muds
SU1160342A1 (en) * 1983-05-25 1985-06-07 Aleksandr E Blyum Method of exciting seismic waves
DE3341038C2 (en) * 1983-11-12 1985-09-19 Chemische Fabrik Kalk GmbH, 5000 Köln Means for sealing borehole walls
SU1368323A1 (en) * 1985-07-02 1988-01-23 Всесоюзный Научно-Исследовательский Институт По Креплению Скважин И Буровым Растворам "Вниикрнефть" Composition for using exhausted clay drilling mud
SU1357419A1 (en) * 1986-02-06 1987-12-07 Всесоюзный научно-исследовательский институт по креплению скважин и буровым растворам Consolidating composition for decontamination clay drilling muds and sediments of drilling waste water
SU1542948A1 (en) * 1987-11-17 1990-02-15 Sred Az Ni Pi Neftyanoj Promy Drilling mud
GB8913647D0 (en) * 1989-06-14 1989-08-02 Shell Int Research Method of drilling and lining a borehole

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR884628A (en) * 1942-03-25 1943-08-23 Cie Ingersoll Rand Blast hole tamping method and apparatus for its implementation
FR1154328A (en) * 1955-07-08 1958-04-04 Hercules Powder Co Ltd Firing process
FR1277035A (en) * 1960-12-30 1961-11-24 Method for blasting and plugging blastholes, and device used for its implementation
JPS55140745A (en) * 1979-04-23 1980-11-04 Taisei Corp Inorganic slurry caking method
SU834331A1 (en) * 1979-10-02 1981-06-10 Всесоюзный Научно-Исследовательскийинститут По Креплению Скважин Ибуровым Pactbopam Composition for isolating absrption zones
US4463808A (en) * 1982-06-10 1984-08-07 Nl Industries, Inc. Method for effecting seals in earth boreholes
US4548266A (en) * 1984-01-20 1985-10-22 The United States Of America As Represented By The United States Department Of Energy Method for isolating two aquifers in a single borehole
US4662451A (en) * 1985-06-07 1987-05-05 Phillips Petroleum Company Method of fracturing subsurface formations
NL8602057A (en) * 1986-08-12 1988-03-01 C K S Nederland B V Mixt. for sealing wall of borehole in underground formation, - contg. bentonite, hydraulic cement, slaked lime and sodium carbonate
SU1384793A1 (en) * 1986-08-20 1988-03-30 Институт Геотехнической Механики Ан Усср Method of driving workings in outburst-hazardous rock
SU1633092A1 (en) * 1988-04-22 1991-03-07 Туркменский государственный научно-исследовательский и проектный институт нефтяной промышленности Foamed-cement plugging composition

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Week 8051, Derwent World Patents Index; AN 8090991 *
DATABASE WPI Week 8215, Derwent World Patents Index; AN 8230468 *
DATABASE WPI Week 8813, Derwent World Patents Index; AN 8808945 *
DATABASE WPI Week 8841, Derwent World Patents Index; AN 88291344 *
DATABASE WPI Week 9147, Derwent World Patents Index; AN 91344946 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998055805A1 (en) * 1997-06-05 1998-12-10 Nitro Nobel Ab Method and apparatus for charging boreholes with explosives
US6397754B1 (en) 1997-06-05 2002-06-04 Nitro Nobel Ab Method and apparatus for charging boreholes with explosives

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PL171842B1 (en) 1997-06-30
DE4393917D2 (en) 1995-09-21
DE4227724A1 (en) 1994-02-24
DE59310120D1 (en) 2000-12-14
EP0885372B1 (en) 2000-11-08
PL312381A1 (en) 1996-04-15
EP0885372A1 (en) 1998-12-23

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