| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 175011000 | BORING BY DIRECTLY APPLYING HEAT TO FLUIDIZE OR COMMINUTE | 57 |
| 20090145659 | METHOD AND APPARATUS FOR FINAL STORAGE AND SAFE OPERATION OF NUCLEAR POWER STATIONS - In order to provide a method with apparatuses for safe final storage of highly radioactive waste products while safely coping with a reactor core melt, and final storage of the highly radioactive as well as slightly radioactive and medium-radioactive inventory when dismantling the nuclear power station itself in situ, it is proposed that a metal-shell drilled shaft composed of a casting be used as the final storage shaft at the nuclear power station location to which the material to be finally stored is supplied via a bomb-proof transport tunnel, which is hermetically isolated from the biosphere, from the reactor building or temporary stored by means of a magnetic sliding trans-port system for introduction to store, with filled final store sections migrating into the earth's mantel after separation from the remaining shaft, with residual heat being produced and under the influence of the force of gravity. | 06-11-2009 |
| 20090321132 | ELECTROMAGNETIC ENERGY ASSISTED DRILLING SYSTEM AND METHOD - A drill bit, system and method for penetrating a material such as a mineral bearing rock or the like is disclosed. The system comprises a drill bit comprising a cutting face comprising at least one cutting tool, an emitter of microwaves positioned behind the cutting face, wherein at least a portion of the microwaves are emitted in a direction away from the cutting face, and a reflector for directing the portion to the cutting face. In operation the emitted microwaves irradiate the material prior to the irradiated material being removed by the at least one cutting tool. | 12-31-2009 |
| 20100032207 | Method and System for Forming a Non-Circular Borehole - System and methods for creating shaped, non-circular boreholes in rocks especially for use with geothermal heat pump applications and for increasing wellbore support in applications such as horizontal oil and gas drilling are described. The systems and methods when applied to geothermal heat pumps create an elliptical shaped hole that is optimized for placing heat transfer tubes with a minimum of grout used. The significantly reduced cross-sectional area of the elliptical borehole also increases the overall drilling rate in rock and especially in hard rocks. In horizontal hard-rock drilling, creation of a horizontal non-circular borehole or modification of a circular borehole to a non-circular geometry is used to stabilize the borehole prior to casing insertion, and may also allow the use of lower mud pressures improving drilling rates. The system uses a non-contacting drilling system which in one embodiment uses a supersonic flame jet drilling system with a movable nozzle that swings between pivot points. In a second embodiment the elliptical shaped hole is created by an abrasive fluid or particle bearing-fluid or air jet drill that moves between pivot points. In another embodiment a non-contacting drill can use dual parallel nutating nozzles that create a pair of overlapping circular holes. The non-circular shaped hole is created by either the high temperature flame or water-particle jet or chemically active fluid jet as it removes rock material by erosion, dissolution and or thermal spalling. Modifications of circular boreholes to a generally elliptical shape can also be done using milling or jetting techniques. | 02-11-2010 |
| 20100224408 | EQUIPMENT FOR EXCAVATION OF DEEP BOREHOLES IN GEOLOGICAL FORMATION AND THE MANNER OF ENERGY AND MATERIAL TRANSPORT IN THE BOREHOLES - Utilisation of geothermal energy in depths above 5 km could contribute considerably to resolving the global problems related to a lack of energy and to glasshouse gases from fossil fuels. The invention describes innovative equipment which makes deep holes in geological formations (rock) by disintegrating the soil into blocks carried to the land surface through the excavated hole filled with liquid, using transport modules yielded up by gas buoyancy interaction in the transport module utilising supercavitation. In an opposite direction—by help of negative buoyancy—the necessary energy carriers, materials and components, or entire devices required for rock excavation, are carried to the bottom. The opportunity to transport rock in entire blocks reduces energy consumption considerably, because the rock is disintegrated in the section volumes only. Some of the extracted rock and material carried from the surface is used to make a casing of the hole using a part of the equipment. The equipment also allows the generation of the necessary high pressure of liquid at the bottom of the hole, to increase permeability of adjacent rock. The equipment as a whole allows by its function that there is almost linear dependence between the price and depth (length) of the produced hole (borehole). | 09-09-2010 |
| 20100252324 | MILLIMETER-WAVE DRILLING AND FRACTURING SYSTEM - System for drilling boreholes into subsurface formations. A gyrotron injects millimeter-wave radiation energy into the borehole and pressurization apparatus is provided for pressurizing the borehole whereby a thermal melt front at the end of the borehole propagates into the subsurface formations. In another aspect, a system for fracturing a subsurface formation is disclosed. | 10-07-2010 |
| 20100288555 | PROCEDURE AND DEVICE FOR THE OPTIMAL, UTILIZATION OF CARBON RESOURCES SUCH AS OIL FIELDS, OIL SHALES, OIL SANDS, COAL, AND CO2 - The invention relates to a procedure and device for the use of SC | 11-18-2010 |
| 20110120771 | GAS CUTTING BOREHOLE DRILLING APPARATUS - A drilling apparatus for drilling boreholes in an underground formation. The drilling apparatus comprises a tool body that can be positioned in a borehole where drilling is to take place. The apparatus further comprises a gas cutting torch having a nozzle, a supply of a cutting gas connected to the gas cutting torch. and means for advancing the tool body through the borehole as drilling takes place. | 05-26-2011 |
| 20110174537 | Method and System for Forming a Non-Circular Borehole - System and methods for creating shaped, non-circular boreholes in rocks especially for use with geothermal heat pump applications and for increasing wellbore support in applications such as horizontal oil and gas drilling are described. The systems and methods when applied to geothermal heat pumps create an elliptical shaped hole that is optimized for placing heat transfer tubes with a minimum of grout used. The significantly reduced cross-sectional area of the elliptical borehole also increases the overall drilling rate in rock and especially in hard rocks. In horizontal hard-rock drilling, creation of a horizontal non-circular borehole or modification of a circular borehole to a non-circular geometry is used to stabilize the borehole prior to casing insertion, and may also allow the use of lower mud pressures improving drilling rates. The system uses a non-contacting drilling system which in one embodiment uses a supersonic flame jet drilling system with a movable nozzle that swings between pivot points. In a second embodiment the elliptical shaped hole is created by an abrasive fluid or particle bearing-fluid or air jet drill that moves between pivot points. In another embodiment a non-contacting drill can use dual parallel nutating nozzles that create a pair of overlapping circular holes. The non-circular shaped hole is created by either the high temperature flame or water-particle jet or chemically active fluid jet as it removes rock material by erosion, dissolution and or thermal spalling. Modifications of circular boreholes to a generally elliptical shape can also be done using milling or jetting techniques. | 07-21-2011 |
| 20110198123 | APPARATUS FOR BORING HOLES IN ROCK MASS - The present disclosure relates to a device for boring holes in rock mass working in a system, in which the reference axis is the axis of gravity, with thermal, pressure and sound energy. It constitutes an assembly of at least one disintegrator body ( | 08-18-2011 |
| 20140041940 | SYSTEM AND METHOD FOR DRILLING IN ROCK USING MICROWAVES - Disclosed herein is an apparatus for drilling a wellbore in a material, such as rock. The apparatus can include a microwave source, a first fluid source, and a second fluid source. The microwave source can be configured to transmit microwave energy to a surface of the material to alter the material. The first fluid source can be configured to emit a first fluid to the surface of the material to alter the material. The first fluid can be substantially absorptive to the microwave energy. The second fluid source can be configured to emit a second fluid to the surface of the material to flush the first fluid from the surface of the material. The second fluid can be substantially transparent to the microwave energy. | 02-13-2014 |
| 20150047901 | Method of Disintegrating Rock by Melting and by Synergism of Water Streams - Method of disintegrating rock by melting and by synergism of water streams, comprising action of the heat flow source on the rock, action of the water stream source on the melted rock so that: the heat or energy flow source acts on the rock at least until its local phase transition into the melt occurs, at least one water stream is directed into the locally created melt, physical explosion occurs in the melt, on which the water stream acts. | 02-19-2015 |
| 20160153240 | DEVICE FOR LASER DRILLING | 06-02-2016 |
| 175014000 | Combustion is confined chamber having restricted discharge orifice | 3 |
| 20080217058 | Heating device for passage through subterranean asphalt and method of use - A lowermost casing segment in a tubular casing string, capped with a cast iron end cap, has an ignitable thermite mixture within the interior of such casing segment which, when ignited, superheats the end cap and the casing segment, to allow the casing segment and the end cap to be lowered completely through a subterranean asphalt formation without allowing the asphalt to enter the interior of the casing segment. The cast iron end cap is then drilled out to allow further drilling through the casing segment into oil and gas formations beneath the asphalt formation. In a first embodiment, the casing segment has a top cap to constrain the thermite mixture. In a second embodiment, the thermite mixture is located within a metal capsule which can be lowered into the casing segment to rest against the bottom end cap, and then be removed by a wireline. | 09-11-2008 |
| 20090071713 | System for Rapidly Boring Through Materials - The present invention is a self-contained, high-energy liquid rock-boring system that will bore a small-diameter access hole [ | 03-19-2009 |
| 20110303460 | ROCK DRILLING IN GREAT DEPTHS BY THERMAL FRAGMENTATION USING HIGHLY EXOTHERMIC REACTIONS EVOLVING IN THE ENVIRONMENT OF A WATER-BASED DRILLING FLUID - A method and a device to thermally fragment rock for excavation of vertical and directional boreholes in rock formations, preferentially hard rock, using highly exothermic reactions. Exothermic reactions are initiated directly in the pressurized, aqueous environment of a water-based drilling fluid preferably above the critical pressure of water (221 bar). After reaction onset temperatures within the reaction zone exceed the critical temperature for water (374° C.) providing supercritical conditions, which favor the stabilization of the reaction, e.g. a supercritical hydrothermal flame. Since reactions can be run directly in a water-based drilling fluid, the method proposed here allows high density drilling action as in conventional rotary drilling. A part from the hot reaction zone of the proposed reaction can be brought directly to the rock surface in case of hard polycrystalline rock, where high temperatures are required. | 12-15-2011 |
| 175015000 | Rotating the heating tool | 6 |
| 20100044102 | METHODS AND APPARATUS FOR REMOVAL AND CONTROL OF MATERIAL IN LASER DRILLING OF A BOREHOLE - There is provided a system, apparatus and methods for removal of material for the path of a laser beam during laser drilling of a borehole and for removal of displaced borehole material from the borehole during laser drilling. In particular, there are provided paths, dynamics and parameters of fluid flows, and apparatus for obtaining such, for use in conjunction with a laser bottom hole assembly. | 02-25-2010 |
| 20110168443 | Bitless Drilling System - Deep drillholes of 2 or more meters diameter down to 14-20 km and more, are with current technology extremely expensive and often not possible. | 07-14-2011 |
| 20120067643 | TWO-PHASE ISOLATION METHODS AND SYSTEMS FOR CONTROLLED DRILLING - There is provided a system and method for having multiple movable isolation zones within a borehole, to provide for zones having predetermined properties, such as pressure, flow or optical properties. These movable isolation zones provide advantages in downhole activities, such as, laser cutting and laser drilling to advance a borehole. | 03-22-2012 |
| 20120261188 | METHOD OF HIGH POWER LASER-MECHANICAL DRILLING - There is provided a laser-mechanical method for drilling boreholes that utilizes specific combinations of high power directed energy, such as laser energy, in combination with mechanical energy to provide a synergistic enhancement of the drilling process. | 10-18-2012 |
| 20160017661 | APPARATUS FOR PERFORMING OIL FIELD LASER OPERATIONS - A system, apparatus and methods for delivering high power laser energy to perform laser operations in oil fields and to form a borehole deep into the earth using laser energy. A laser downhole assembly for the delivery of high power laser energy to surfaces and areas in a borehole, which assembly may have laser optics and a fluid path. | 01-21-2016 |
| 20160186497 | ELECTRIC MOTOR FOR LASER-MECHANICAL DRILLING - A high power laser drilling system utilizing an electric motor laser bottom hole assembly. A high power laser beam travels within the electric motor for performing a laser operation. A system includes a down hole electrical motor having a hollow rotor for conveying a high power laser beam having a wavelength less than 1060 nm through the electrical motor. | 06-30-2016 |
| 175016000 | Electrically produced heat | 36 |
| 20080245568 | System and Method for Drilling a Borehole - A system and method is provided for drilling a wellbore including a rotary drill bit with a bit body having a plurality of mechanical cutters to cut away formation material as the wellbore is formed; and a directed energy mechanism to direct energy into the formation such that energy from the directed energy mechanism causes fracturing of surrounding material to facilitate drilling in the direction of the directed energy. | 10-09-2008 |
| 20090133929 | 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 | 05-28-2009 |
| 20100000790 | Apparatus and Method for Electrocrushing Rock - The present invention provides for pulsed power breaking and drilling apparatuses and methods. The present invention comprises two pulsed power systems coordinated to fire one right after the other. The first pulsed power system, comprising a spiker, may create a high voltage pulse that breaks down the insulative properties of the substrate and may create an arc channel in the substrate. It is designed for high voltage but low energy, at high impedance. The second pulsed power system, comprising a sustainer, is designed to provide high current into the arc, but at low voltage, thus better matching the impedance of the arc and achieving much more efficient energy transfer. | 01-07-2010 |
| 20100044103 | METHOD AND SYSTEM FOR ADVANCEMENT OF A BOREHOLE USING A HIGH POWER LASER - There is provided a system, apparatus and methods for the laser drilling of a borehole in the earth. There is further provided with in the systems a means for delivering high power laser energy down a deep borehole, while maintaining the high power to advance such boreholes deep into the earth and at highly efficient advancement rates, a laser bottom hole assembly, and fluid directing techniques and assemblies for removing the displaced material from the borehole. | 02-25-2010 |
| 20100044104 | Apparatus for Advancing a Wellbore Using High Power Laser Energy - There is provided a system, apparatus and methods for delivering high power laser energy to advance a borehole deep into the earth using laser energy. In particular, there is provided a laser bottom hole assembly (LBHA) for the delivery of such laser energy to the surfaces of a borehole, which assembly may have laser optics, a fluid path for debris removal and a mechanical means to remove earth. | 02-25-2010 |
| 20100044105 | METHODS AND APPARATUS FOR DELIVERING HIGH POWER LASER ENERGY TO A SURFACE - There is provided a system, apparatus and methods for providing a laser beam to borehole surface in a predetermined and energy deposition profile. The predetermined energy deposition profiles may be uniform or tailored to specific downhole applications. Optic assemblies for obtaining these predetermined energy deposition profiles are further provided. | 02-25-2010 |
| 20100044106 | METHOD AND APPARATUS FOR DELIVERING HIGH POWER LASER ENERGY OVER LONG DISTANCES - There is provided a system, apparatus and methods for the laser drilling of a borehole in the earth. There is further provided with in the systems a means for delivering high power laser energy down a deep borehole, while maintaining the high power to advance such boreholes deep into the earth and at highly efficient advancement rates. | 02-25-2010 |
| 20110220409 | METHOD AND DEVICE FOR FUSION DRILLING - The invention relates to a method for fusion drilling and to a fusion drilling device for producing dimensionally accurate bores, manholes rock and tunnels in the ground, particularly in rock. A drill hole bottom is molten by a melt and the overburden melt is pressed into the surroundings, particularly the surrounding rock which has cracked open under the effects of the temperature and pressure, and wherein during drilling, a drill hole lagging ( | 09-15-2011 |
| 20120132466 | 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 disposed in a transducer at the boulder to improve the coupling of energy between the energy storage unit and the fluid in the boulder. | 05-31-2012 |
| 20120217064 | Pulsed Electric Rock Drilling Apparatus with Non-Rotating Bit and Directional Control - 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 voltage is passed through a mineral substrate to create a crushing or drilling action. The electrocrushing drilling process may have, but does not require, rotation of the bit. The electrocrushing drilling process is capable of excavating the hole out beyond the edges of the bit with or without the need of mechanical teeth. | 08-30-2012 |
| 20120255774 | HIGH POWER LASER-MECHANICAL DRILLING BIT AND METHODS OF USE - There is provided a high power laser-mechanical bit for use with a laser drilling system and a method for advancing a borehole. The laser-mechanical bit has a beam path and mechanical removal devices that provide for the removal of laser-affected rock to advance a borehole. | 10-11-2012 |
| 20120267168 | ELECTRIC MOTOR FOR LASER-MECHANICAL DRILLING - There is provided a high power laser drilling system utilizing an electric motor laser bottom hole assembly having the high power laser beam traveling within the electric motor for advancing a borehole. The systems may include a down hole electrical motor having a hollow rotor for conveying a high power laser beam through the motor. | 10-25-2012 |
| 20120273269 | LONG DISTANCE HIGH POWER OPTICAL LASER FIBER BREAK DETECTION AND CONTINUITY MONITORING SYSTEMS AND METHODS - There is provided a monitoring and detection system for use with, or in, high power laser system, long distance high power laser system and tools for performing high power laser operations, and in particular for performing high power laser operation on, and in, remote and difficult to access locations. | 11-01-2012 |
| 20130032397 | Systems and Methods for Pulsed-Flow Pulsed-Electric Drilling - In at least some embodiments, a pulsed-electric drilling system includes a bit that extends a borehole by detaching formation material with pulses of electric current from one or more electrodes, and a drillstring that defines at least one path for a fluid flow to the bit to flush detached formation material from the borehole. The system modulates the fluid flow across the one or more electrodes. This modulation may enhance the performance of the pulsed-electric drilling process. | 02-07-2013 |
| 20130032398 | Pulsed-Electric Drilling Systems and Methods with Reverse Circulation - In at least some embodiments, a pulsed-electric drilling system includes a bit that extends a borehole by detaching formation material with pulses of electric current, and a drillstring that transports a fluid flow from the bit to convey detached formation material out of the borehole. The use of reverse circulation may enhance the performance of the pulsed-electric drilling system. | 02-07-2013 |
| 20130032399 | Systems and Methods for Directional Pulsed-Electric Drilling - Pulsed-electric drilling systems can be augmented with a steering mechanism that shifts at least a portion of a bit relative to a borehole centerline. Illustrative mechanisms include ball-and-socket joints, pivot-and-hinge joints, rotary steerable systems, and bent subs. As the bit detaches formation material using electric pulses, the detached material being flushed away by a flow of drilling fluid, the shifting of the bit from the centerline causes the borehole to turn in the direction of the bit. | 02-07-2013 |
| 20130112478 | DEVICE FOR LASER DRILLING - Equipment for laser-drilling having an optical component or feed module with a set of lasers, the active optical fiber, in the form of hollow coil, the excitation of the laser active medium made through the coupling of the light emitted by laser diodes inside the active fiber, and a mechanical component that is an optic drill bit with a hollow rigid body and an end of any geometry, the drill bit having leaky orifices for the optical fibers connection or bundle of optical fibers with drill bit walls and orifices to allow the drilling and cooling fluids are released in the surface to be drilled, the optical fibers being provided from the feed module. The feed module generates high intensity light generation that through optical fibers is guided to the optic drill bit. The feed module and the optic drill bit are coupled to a drill string. | 05-09-2013 |
| 20130140086 | APPARATUS AND METHOD FOR SUPPLYING ELECTRICAL POWER TO AN ELECTROCRUSHING DRILL - An apparatus and method for controlling power delivered to a pulsed power system which includes a command charge switch for controlling when power produced by a primary power system is fed into a cable. The command charge switch also controls the power delivered to the pulsed power system in a bottom hole assembly. | 06-06-2013 |
| 20130175090 | METHOD AND APPARATUS FOR DELIVERING HIGH POWER LASER ENERGY OVER LONG DISTANCES - There is provided a system, apparatus and methods for the laser drilling of a borehole in the earth. There is further provided with in the systems a means for delivering high power laser energy down a deep borehole, while maintaining the high power to advance such boreholes deep into the earth and at highly efficient advancement rates. | 07-11-2013 |
| 20130192893 | HIGH POWER LASER PERFORATING TOOLS AND SYSTEMS ENERGY OVER LONG DISTANCES - There is provided a system, apparatus and methods for the laser drilling of a borehole in the earth. There is further provided with in the systems a means for delivering high power laser energy down a deep borehole, while maintaining the high power to advance such boreholes deep into the earth and at highly efficient advancement rates. | 08-01-2013 |
| 20130192894 | Methods for enhancing the efficiency of creating a borehole using high power laser systems - There is provided a system, apparatus and methods for the laser drilling of a borehole in the earth. There is further provided with in the systems a means for delivering high power laser energy down a deep borehole, while maintaining the high power to advance such boreholes deep into the earth and at highly efficient advancement rates. | 08-01-2013 |
| 20130228372 | HIGH POWER LASER PERFORATING AND LASER FRACTURING TOOLS AND METHODS OF USE - There are provided high power laser perforating tools and methods of delivering laser energy patterns that enhance the flow of energy sources, such as hydrocarbons, from a formation into a production tubing or collection system. These tools and methods precisely deliver predetermined laser beam energy patterns, to provide for custom geometries in a formation. The patterns and geometries are tailored and customized to the particular geological and structural features of a formation and reservoir. | 09-05-2013 |
| 20140060930 | High power laser downhole cutting tools and systems - Downhole cutting systems, devices and methods for utilizing 10 kW or more laser energy transmitted deep into the earth with the suppression of associated nonlinear phenomena. Systems and devices for the laser cutting operations within a borehole in the earth. These systems and devices can deliver high power laser energy down a deep borehole, while maintaining the high power to perform cutting operations in such boreholes deep within the earth and at highly efficient rates. | 03-06-2014 |
| 20140158425 | APPARATUS AND SYSTEM TO REMOVE DEBRIS FROM A LASER-EXTENDED BORE SECTION - An apparatus and a system to remove debris generated by using laser light to extend a bore section comprises a body connected to an umbilical and a plurality of coolant injection ports arranged about an inlet to a debris removal passage through the body. The umbilical is used to position the body adjacent a bore wall in a bore section to be extended, laser light is emitted from the apparatus to melt at least a component of a formation material in which the bore is to be extended and to generate globules of melted formation components. A gas is injected into the bore section to disrupt and to sweep at least some of the molten material from a laser path into the debris removal passage as an injected stream of coolant within the passage intercepts the remnants of globules of molten material as they accelerate in the debris removal passage. | 06-12-2014 |
| 20140182933 | OPTICAL FEEDBACK TO MONITOR AND CONTROL LASER ROCK REMOVAL - Methods, systems, and devices related to downhole wellbore operations such as drilling and completing wells in an earth formation that include a laser device. The method includes lasing a rock and detecting an optical response of the lased rock. It can be determined from the optical response whether the lased rock is responding as specified (e.g. spalling, melting, etc.) If the lased rock is not responding as specified, one or more laser parameters are adjusted to achieve the specified response. Spalling is determined by the detection of sparks, or other light that erratically changes in intensity over time, by an optical detector. The detection of steady light may indicate other types of rock removal mechanisms, such as melt or dissociation. | 07-03-2014 |
| 20150068804 | DOWNHOLE TOOL FOR INCREASING A WELLBORE DIAMETER - A downhole tool for increasing a diameter of a wellbore disposed within a subterranean formation. The downhole tool includes an underreamer having a plurality of cutter blocks moveably coupled thereto that move radially-outward from a refracted state to an expanded state. The cutter blocks cut the subterranean formation to increase the diameter of the wellbore from a first diameter to a second diameter when in the expanded state. A formation weakening tool may be coupled to the underreamer. The formation weakening tool weakens a portion of the subterranean formation positioned radially-outward therefrom. | 03-12-2015 |
| 20150083491 | METHOD AND APPARATUS FOR ISOLATING AND SWITCHING LOWER VOLTAGE PULSES FROM HIGH VOLTAGE PULSES IN ELECTROCRUSHING AND ELECTROHYDRAULIC DRILLS - Method and apparatus for isolating and switching lower voltage pulses from high voltage pulses in electrocrushing and electrohydraulic drills. A transformer with a high permeability core acts as a magnetic switch or saturating inductor to switch high voltage pulses to initiate an electrocrushing arc and lower voltage pulses to sustain the arc. The transformer isolates the lower voltage components from the high voltage pulses, and switches to deliver the low voltage current when the core saturates. The transformer enables impedance matching to the arc during all stages of drilling. The saturation time of the transformer core is the time delay between initiation of delivering the high voltage pulse and initiation of delivering the lower voltage current. | 03-26-2015 |
| 20150308194 | METHOD AND SYSTEM FOR ADVANCEMENT OF A BOREHOLE USING A HIGH POWER LASER - There is provided a system, apparatus and methods for the laser drilling of a borehole in the earth. There is further provided with in the systems a means for delivering high power laser energy down a deep borehole, while maintaining the high power to advance such boreholes deep into the earth and at highly efficient advancement rates, a laser bottom hole assembly, and fluid directing techniques and assemblies for removing the displaced material from the borehole. | 10-29-2015 |
| 20150322326 | PULSE POWER DRILLING FLUID AND METHODS OF USE - Pulse power drilling fluids comprising a base fluid solution of a low viscosity ester and an alkylene carbonate in an amount that is soluble in the ester are provided. The pulse power drilling fluids provide excellent properties for use in pulse-power drilling, e.g., a high dielectric constant, a high dielectric strength, lower viscosity and lower conductivity than current pulse-power drilling fluids. Methods of using the pulse power drilling fluids are also described. | 11-12-2015 |
| 20150322738 | METHODS AND APPARATUS FOR REMOVAL AND CONTROL OF MATERIAL IN LASER DRILLING OF A BOREHOLE - The removal of material from the path of a high power laser beam during down hole laser operations including drilling of a borehole and removal of displaced laser effected borehole material from the borehole during laser operations. In particular, paths, dynamics and parameters of fluid flows for use in conjunction with a laser bottom hole assembly. | 11-12-2015 |
| 20150345225 | MULTIMODAL ROCK DISINTEGRATION BY THERMAL EFFECT AND SYSTEM FOR PERFORMING THE METHOD - Multimodal rock disintegration by non-contact thermal effect, spallation, melting, evaporation of a rock through a movable electric arc, arc thermal expansion and subsequent shock pressure wave allows in comparison with currently available and known technologies to drill into the rock by direct action of the electric arc and heat flows generated by the electric arc. The principle of the disintegration is based on the electric arc generation, force action to it and pressing it towards the rock intended to disintegrate, which causes heating of the rock so that a phase change and thermal disintegration of the rock occurs. Subsequently, the crushed rock is transported by a fluid streams, which are involved in stabilizing and guiding of the electric arc, from the area between the rock and the electric arc, which is the area of the rock disintegration. | 12-03-2015 |
| 20160024849 | GENERATING ELECTRIC ARC, WHICH DIRECTLY AREALLY THERMALLY AND MECHANICALLY ACTS ON MATERIAL, AND DEVICE FOR GENERATING ELECTRIC ARC - Generating electric arc, which thermally and mechanically acts on material in such manner that the electrical arc is shaped and guided by the action of magnetic field and hydro-mechanical forces on the electrical arc, wherein: —the substantial part of the electric arc acts directly and areally on conductive and/or non-conductive material to be disrupted, —the substantial part of the electric arc's heat flow is directed into the material to be disrupted, —wherein both electric arc roots move on the electrodes of the generator and the electric arc has preferably a shape of a spiral. A device for generating an electric arc with thermal and mechanic action on material containing axially symmetrical electrodes, i.e. an anode ( | 01-28-2016 |
| 20160060961 | HIGH-VOLTAGE DRILLING METHODS AND SYSTEMS USING HYBRID DRILLSTRING CONVEYANCE - In at least some embodiments, a high-voltage drilling system includes a power supply to output high-voltage power to an electrical conductor, a bit that extends a borehole based on the high-voltage power, and a hybrid drillstring that transports a fluid flow from the bit to convey detached formation material out of the borehole. At least part of the electrical conductor resides within the hybrid drillstring to convey power to the bit. The hybrid drillstring includes a coiled tubing section and a jointed pipe section. | 03-03-2016 |
| 20160084008 | DOWNHOLE LASER SYSTEMS, APPARATUS AND METHODS OF USE - Systems, apparatus and methods for performing laser operations in boreholes and other remote locations, such operations including laser drilling of a borehole in the earth, and laser workover and completion operations. Systems, apparatus and methods for generating and delivering high power laser energy below the surface of the earth and within a borehole. Laser operations using such down hole generated laser beams. | 03-24-2016 |
| 20160090790 | HIGH POWER LASER ENERGY DISTRIBUTION PATTERNS, APPARATUS AND METHODS FOR CREATING WELLS - There is provided a system, apparatus and methods for providing a laser beam to borehole surface in a predetermined and energy deposition profile. The predetermined energy deposition profiles may be uniform or tailored to specific downhole applications. Optic assemblies for obtaining these predetermined energy deposition profiles are further provided. | 03-31-2016 |
| 20160160618 | High Power Laser-Fluid Guided Beam for Open Hole Oriented Fracturing - A laser-jet apparatus for creating a penetration through a stress region adjacent to a wellbore includes an outer tool housing, the outer tool housing having a housing central bore. A laser assembly includes a lens case with an outer diameter that is smaller than an inner diameter of the housing central bore, defining an annular passage between the outer tool housing and the lens case. A focusing lens and a collimating lens are located within the lens case. The focusing lens is shaped to control the divergence of a laser beam and the collimating lens is shaped to fix the diameter of the laser beam. A jet fluid path is located in the annular passage, the jet fluid path shaped to merge jet fluid with the laser beam. The outer tool housing has a frusto-conical tip for directing the combined jet fluid and laser beam to the stress region. | 06-09-2016 |
