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7445058 |
A nozzle unit for generating an abrasive jet. The nozzle unit has a first nozzle connected to a pressurized carrier fluid supply; a mixing chamber in which the first nozzle discharges; and a second nozzle connected to the mixing chamber....
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7431104 |
A device for transporting magnetic particles in a selected direction has a support surface extending in the selected direction, a magnet arranged to generate a magnetic field for retaining the particles on the support surface such that t...
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7419014 |
The invention features an excavating device for excavating a hole in a geological formation, which excavating device includes:
a body rotatable inside the hole along a rotation axis; a nozzle arranged on the body to jet a stream o...
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7398839 |
A system and method for excavating a subterranean formation, according to which a slurry of liquid and a plurality of impactors are introduced into at least one cavity formed in a body member and are discharged from the cavity so that th...
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7398838 |
A system and method for excavating a subterranean formation according to which a fluid is introduced into a vessel to draw a plurality of impactors into the vessel to form a suspension. The suspension is discharged from the vessel and in...
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7383896 |
A system and method for excavating a subterranean formation, according to which a suspension of liquid and a plurality of impactors are introduced into at least one cavity formed in a body member and are discharging from the cavity so th...
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7343987 |
A system and method for excavating a subterranean formation, according to which a suspension of liquid and a plurality of impactors are passed between a drill string to a body member for discharge from the body member to remove at least ...
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6152356 |
A method and apparatus for the hydraulic removal of bitumen from a tar sand deposit comprises forming a borehole into the tar sand deposit and securing a casing into the borehole. Into the casing is inserted a mining tool having a water/...
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3743035 |
A drill bit comprising a body wherein is provided a chamber including a Venturi passage in communication with an ejector located below the Venturi passage, this assembly being located close to the working face of the bit which is in cont...
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3132852 |
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