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8172006 |
Pulsed electric rock drilling apparatus with non-rotating bit
The present invention provides for pulsed powered drilling apparatuses and methods. A drilling apparatus is provided comprising a bit having one or more sets of electrodes through which a pulsed...
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8109345 |
System and method for drilling a borehole
A system and method is provided for drilling a wellbore using a rotary drill bit with a bit body having a plurality of mechanical cutters to cut away formation material as the wellbore is formed...
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8083008 |
Pressure pulse fracturing system
The present invention provides for an assembly for creating a pressure pulse in a liquid-filled cavity within a fracturable material such as a boulder wherein the primary energy storage element is...
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7802384 |
Method and device for excavating submerged stratum
An excavation technique for a stratum capable of excavating a submerged stratum such as a layer containing an underground resource by using laser irradiation in liquid is provided. In this...
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7784563 |
Method, drilling machine, drill bit and bottom hole assembly for drilling by electrical discharge by electrical discharge pulses
Machine for ground drilling, with a circulating fluid, by the utilization of electric discharge generated by high-voltage pulses between electrodes. It may comprise: —A drill-bit 1 with e...
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7669937 |
Continuous extraction of underground narrow-vein metal-bearing deposits by thermal rock fragmentation
A method for extracting minerals from a narrow-vein deposit by thermal fragmentation is provided. The method includes locating the vein and determining the extent thereof to form the boundaries of...
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7559378 |
Portable and directional electrocrushing drill
The present invention relates to a portable, directional electrocrushing drilling apparatus and method.
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7546880 |
Extracting gas hydrates from marine sediments
A process for extracting hydrocarbon gases from marine sediment hydrates. In one embodiment, the process includes drilling from a sea floor into a hydrate rich subsea sediment to form at least one...
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7530406 |
Method of drilling using pulsed electric drilling
The present invention provides for pulsed powered drilling apparatuses and methods. A drilling apparatus is provided comprising a bit having one or more sets of electrodes through which a pulsed...
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7527108 |
Portable electrocrushing drill
The present invention relates to a portable, electrocrushing drilling apparatus and method.
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7416032 |
Pulsed electric rock drilling apparatus
The present invention provides for pulsed powered drilling apparatuses and methods. A drilling apparatus is provided comprising a bit having one or more sets of electrodes through which a pulsed...
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7377593 |
Continous extraction of underground narrow-vein metal-bearing deposits by thermal rock fragmentation
A method for extracting minerals from a narrow-vein deposit by thermal fragmentation is provided. The method includes locating the vein and determining the extent thereof to form the boundaries of...
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7270195 |
Plasma channel drilling process
Material is removed from a body of material, e.g. to create a bore hole, by plasma channel drilling. High voltage, high energy, rapid rise time electrical pulses are delivered many times per second...
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7195320 |
Thermal rock fragmentation application in narrow vein extraction
A free-blast method for extracting ore from an ore vein deposit wherein the vein is extracted by causing the ore comprised between the rock walls bordering the vein to spall into fragments. The ore...
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7147064 |
Laser spectroscopy/chromatography drill bit and methods
A drilling apparatus for well-boring having a drill bit assembly which includes a laser cutting assembly and a vacuum assembly. The vacuum assembly is adapted to intake vapors generated by the...
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6912356 |
Method and apparatus for fracturing brittle materials by thermal stressing
A method of fracturing or breaking rock includes the step of directing high intensity white light (radiation) at the rock to induce thermal stress sufficient to fracture the rock. The intensity of...
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6761416 |
Method and apparatus for a plasma-hydraulic continuous excavation system
A plasma-hydraulic excavation system suitable for use in connection with mining operations is provided. According to the system, one or more groups of plasma-hydraulic projectors that include a...
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6755262 |
Downhole lens assembly for use with high power lasers for earth boring
An earth boring apparatus at least partially locatable within a borehole. The apparatus includes a plurality of optical fibers, each of which has a proximal fiber light energy input end and a...
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6626249 |
Dry geothermal drilling and recovery system
A geothermal drilling and recovery system comprising a drilling rig having an elevator with a laser and a radar gun mounted on said elevator, a drill pipe, a rotating mirror mounted adjacent the...
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6591920 |
Moulten bath drilling method
A fusion drilling process and device for the placement of dimensionally accurate borings, particularly those of large diameter, in rock, in which the waste melt is pressed into the surrounding...
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6457778 |
Electro-power impact cell for plasma blasting
An electro-power impact cell used in blasting works includes a first electrode to which a high voltage is applied, the first electrode having a plurality of conductive piece between which...
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6283555 |
Plasma blasting with coaxial electrodes
A discharge breaking system and a discharge breaking method for breakage and decomposition of objects to be ruptured such as destruction of base rocks and breakage of stones into small pieces at...
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6164388 |
Electropulse method of holes boring and boring machine
This invention provides an excavator 1 for crushing a matter to be excavated, existing in an excavating hole in which a discharge liquid is fed, by electric discharge between a plurality of...
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5896938 |
Portable electrohydraulic mining drill
An electrohydraulic drilling system for drilling holes in material such as rock utilizing a drill stem connected to a flexible cable. The electrical spark or plasma that creates the...
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5735355 |
Rock melting tool with annealer section
A rock melting penetrator is provided with an afterbody that rapidly cools a molten geological structure formed around the melting tip of the penetrator to the glass transition temperature for the...
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5573307 |
Method and apparatus for blasting hard rock
A method and apparatus for blasting of hard rock using a highly insensitive energetic material ignited with a moderately high energy electrical discharge causing the fracturing and break up of the...
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5482357 |
Plasma blasting probe assembly
The present invention is concerned with a probe assembly for plasma blasting or fragmenting a substance such as rock, concrete and the like. The probe assembly contains a probe made of two coaxial...
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5479994 |
Method of electrothermomechanical drilling and device for its implementation
The proposed invention relates to the mining industry and may be used for drilling wells in loose rock, in particular in quaternary deposits and in technogenic rocks with simultaneous durable and...
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5425570 |
Method and apparatus for plasma blasting
Method and apparatus for plasma blasting comprises a capacitor bank for storing electrical charge to which is coupled an inductance which delivers the electric charge as a current through a switch...
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5211156 |
Method and apparatus for treating a surface of granite with a high temperature plasma jet
The method and apparatus treat a surface of natural rock or artificial stone-like material to give to this surface an attractive finish. A high temperature jet of plasma and a high speed jet of...
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5168939 |
Electromagnetically accelerated impact oil well drill
The electromagnetically accelerated impact oil well drill uses magnetic interaction of a ringing circuit formed in each of multiple accelerating coils with the electromagnetic field of charge rings...
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5107936 |
Rock melting excavation process
In a heat drilling process for tunnels, deep well and exploration boreholes, only a gap defining the outer profile of the tunnel or borehole is melted down. The drill core surrounded by this gap...
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5106164 |
Plasma blasting method
A blasting method which comprises delivering electrical energy at a rate of at least 100 megawatts per microsecond until a peak power of at least 3 gigawatts is reached across the gap of two poles...
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5060287 |
Heater utilizing copper-nickel alloy core
An electrical resistance heater is provided which utilizes a copper-nickel alloy heating cable. This metallurgy heating cable is significantly less prone to failure due to localized overheating...
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4776638 |
Method and apparatus for conversion of coal in situ
A method for the electro-thermal and electrochemical underground conversion of coal into oil and by-products comprises the steps of inserting an underground probe into a bore hole until the probe...
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4741405 |
Focused shock spark discharge drill using multiple electrodes
A spark discharge focused drill provided with one pulse forming line or a number of pulse forming lines. The pulse forming line is connected to an array of electrodes which would form a spark...
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4412967 |
Multistage high voltage accelerator for intense charged particle beams
The invention relates to a multistage high voltage accelerator which especially should be capable of producing intense ion-beams of many million Ampere and many million Volts. The proposed...
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4376598 |
In-situ vitrification of soil
A method of vitrifying soil at or below a soil surface location. Two or more conductive electrodes are inserted into the soil for heating of the soil mass between them to a temperature above its...
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4227582 |
Well perforating apparatus and method
A method and apparatus for perforating a well casing and surrounding formation are disclosed. The perforating apparatus includes a laser source for projecting a high intensity laser beam...
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4134462 |
Geothermal energy recovery
Apparatus and method for recovering resources from subterranean rock formations, particularly heat energy, and more particularly geothermal energy. A heat-drill, which has means associated...
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4090572 |
Method and apparatus for laser treatment of geological formations
A method and apparatus are disclosed for drilling gas, oil or geothermal wells in geological formations and for "fracing" the pay zones of such wells to increase recovery, using a laser beam...
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4066138 |
Earth boring apparatus employing high powered laser
Earth boring apparatus is mounted above ground and directs an annulus of high powered laser energy downwardly for boring a cylindrical hole by fusing successive annular regions of the stratum to be...
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4019331 |
Formation of load-bearing foundations by laser-beam irradiation of the soil
The method of converting clayey or silty soil into stable and solid underground columns or piles suitable for carrying a building structure, comprises first the drilling of bores of a diameter...
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4020317 |
Method of mining rock with an electron beam
A method of mining rock utilizes a high-intensity electron beam to break the rock. The electron beam is directed onto the surface of the rock, and has sufficient energy either to ablate the rock at...
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3998281 |
Earth boring method employing high powered laser and alternate fluid pulses
A method of earth boring, useful for oil well drilling and the like, employs a high powered laser beam focused and directed by appropriate optics and/or scanning means to a vertically downwardly...
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3977478 |
Method for laser drilling subterranean earth formations
Laser drilling of subterranean earth formations is efficiently accomplished by directing a collimated laser beam into a bore hole in registry with the earth formation and transversely directing the...
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3907044 |
Geopenetrator system
A geopenetrator system is provided comprising an earth boring drill which is particularly adapted to be employed to perform a drilling operation under temperature conditions and at depths wherein...
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3882945 |
Combination laser beam and sonic drill
The method for drilling for subterranean fluids with a combination laser beam and sonic beam comprising positioning a laser beam generator and a sonic generator in a well hole each electrically...
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3871485 |
LASER BEAM DRILL
A method of drilling for subterranean fluid with a laser beam comprising positioning a laser beam generator in a wellhole electrically connected to an inhole voltage generator actuated by drilling...
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3840078 |
STRESS WAVE DRILL
A method and apparatus for drilling a hole in rock. An open-ended, hardened, drilling head containing a means for creating high-intensity stress waves capable of spalling rock is utilized to drill...
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