135264 ⎘
Drill bits characterised by conduits or nozzles for drilling fluids characterised by the nozzle structure
HYDROJETS ROTARY DRILL BIT WITH VOLUMETRIC COOLING
#2DRILL BIT ASSEMBLY FOR REVERSE CIRCULATION HAMMER
#3CENTRALLY LOCATED DRILL BIT CLEANING ELEMENT
#4EARTH-BORING TOOLS, NOZZLES, AND ASSOCIATED STRUCTURES, APPARATUS, AND METHODS
#5DEVICES, SYSTEMS, AND METHODS FOR A CUTTING ELEMENT
#6SELECTABLE HOLE TRIMMER AND METHODS THEREOF
#7FIXED CUTTER DRILL BIT WITH HIGH FLUID PRESSURES
#8SELECTABLE HOLE TRIMMER AND METHODS THEREOF
#9Earth-boring tools with through-the-blade fluid ports, and related methods
#10Reamer drill bit
#11FLUID INLET SLEEVES FOR IMPROVING FLUID FLOW IN EARTH-BORING TOOLS, EARTH-BORING TOOLS HAVING FLUID INLET SLEEVES, AND RELATED METHODS
#12Earth-boring tools, cutting elements, and associated structures, apparatus, and methods
#13Selectable hole trimmer and methods thereof
#14Concealed nozzle drill bit
#15Fixed cutter drill bit with high fluid pressures
#16Flushing system in drill bits
#17Method and apparatus for generating fluid pressure pulses of adjustable amplitude
#18Replaceable nozzle for drilling bit
#19Rotary steerable drill string
#20Drill bit valve
#21HYDRO BORING SYSTEMS AND METHODS
#22Downhole tool with fixed cutters for removing rock
#23Well drilling bit and well drilling method using the same
#24Nozzle and injection device for use in underground coal gasification process and method for operating injection device
#25Drill bit nozzle and drill bit
#26Well bit assembly
#27Wellbore drill bit
#28Device for producing a cavity in a soil
#29Steerable Acid Tunneling System
#30Methods for drilling and producing a surface wellbore
#31Earth-boring bit
#32Cutting tables including fluid flow pathways, and related cutting elements, and earth-boring tools
#33Single Waterway Drill Bits And Systems And Methods For Using Same
#34VENTURI JET BASKET ASSEMBLY FOR USE IN A WELLBORE AND METHODS FOR USE
#35Drill bit with self-directing nozzle and method of using same
#36Methods of forming downhole tools and methods of attaching one or more nozzles to downhole tools
#37Durable rock bit for blast hole drilling
#38Downhole Outer Drill Bit
#39Downhole cutting and sealing apparatus
#40Drill bit for pulling material through pilot-channel
#41Dynamic Underbalanced Drilling technique
#42Nozzle assemblies including shape memory materials for earth-boring tools and related methods
#43Fixed cutter drill bit with flow guide
#44Drill bits with variable flow bore and methods relating thereto
#45Continuous fiber-reinforced tools for downhole use
#46REDUCED FLOW MILLING
#47Curved nozzle for drill bits
#48Method and system for laterally drilling through a subterranean formation
#49No-Waterway Or Single Waterway Drill Bits And Systems And Methods For Using Same
#50Earth-boring tools and components thereof including methods of attaching a nozzle to a body of an earth-boring tool and tools and components formed by such methods
#51Drill bits having flushing and systems for using same
#52METHOD AND APPARATUS FOR REMOTELY CHANGING FLOW PROFILE IN CONDUIT AND DRILLING BIT
#53UNDERGROUND DRILLING APPARATUS
#54Drill bit assembly for a directional percussion boring system
#55NON-CYLINDRICAL NOZZLE SOCKET FOR DRILL BITS
#56Systems and methods for hydraulic balancing downhole cutting tools
#57Machined high angle nozzle sockets for steel body bits
#58Rotary jet bit for jet drilling and cleaning
#59Method and apparatus for remotely changing flow profile in conduit and drilling bit
#60Earth removal member with features for facilitating drill-through
#61FLUID DRILLING HEAD NOZZLE DESIGN
#62Cooled-fluid systems and methods for pulsed-electric drilling
#63Systems and methods for pulsed-flow pulsed-electric drilling
#64Three dimensional fluidic jet control
#65Method and Jetting Head for Making a Long and Narrow Penetration in the Ground
#66Drilling fluid diverting sub
#67Apparatus and methods for drilling a wellbore using casing
#68Underground drilling apparatus
#69Earth removal member with features for facilitating drill-through
#70Rotary drill bit with nozzles designed to enhance hydraulic performance and drilling fluid efficiency
#71CASING END TOOL
#72Earth removal member with features for facilitating drill-through
#73Apparatus and methods for drilling a wellbore using casing
#74Methods of forming components and portions of earth-boring tools including sintered composite materials
#75Rotary drill bit with nozzles designed to enhance hydraulic performance and drilling fluid efficiency
#76NOZZLE WITH CHANNELS THAT IMPART AN ANGULAR MOMENTUM TO THE EXITING FLUID AND METHODS FOR MAKING AND USING SAME
#77Earth-boring tools and components thereof and related methods
#78Apparatus and Method for Lateral Well Drilling Utilizing a Nozzle Assembly with Gauge Ring and/or Centralizer
#79Apparatus and method for lateral well drilling
#80Method and system for laterally drilling through a subterranean formation
#81Drillable Bit Nozzle Retainer with Interchangeable Nozzle Capability
#82SELF-STABILIZED AND ANTI-WHIRL DRILL BITS AND BOTTOM-HOLE ASSEMBLIES AND SYSTEMS FOR USING THE SAME
#83THREADED NOZZLE FOR A CUTTER BIT
#84Drill bit, drilling system, and related methods
#85Erosion resistant fluid passageways and flow tubes for earth-boring tools, methods of forming the same and earth-boring tools including the same
#86Nozzle having a spray pattern for use with an earth boring drill bit
#87Nozzles including secondary passages, drill assemblies including same and associated methods
#88Consolidated hard materials, earth-boring rotary drill bits including such hard materials, and methods of forming such hard materials
#89Impregnated bit with changeable hydraulic nozzles
#90Converging diverging nozzle for earth-boring drill bits, method of substantially bifurcating a drilling fluid flowing therethrough, and drill bits so equipped
#91Drill bit nozzle assembly and insert assembly including a drill bit nozzle assembly
#92Apparatus and methods for drilling a wellbore using casing
#93Method and apparatus for laterally drilling through a subterranean formation
#94Apparatus and methods for drilling a wellbore using casing
#95RECESSED EXTENDED NOZZLES FOR DRILL BITS AND DRILL BITS SO EQUIPPED
#96Steerable bit system assembly and methods
#97Steerable bit system assembly and methods
#98Nozzle assembly for horizontal drilling operations
#99Components of earth-boring tools including sintered composite materials and methods of forming such components
#100Rotary drill bit with nozzles designed to enhance hydraulic performance and drilling fluid efficiency
#101Nozzle unit and method for excavating a hole in an object
#102Apparatus and methods for drilling a wellbore using casing
#103APPARATUS AND METHODS FOR DRILLING A WELLBORE USING CASING
#104Pressure Relief nozzle
#105Consolidated hard materials, methods of manufacture, and applications
#106Steerable bit assembly and methods
#107Oilfield drill bit jet nozzle with slit connecting two orifices
#108Hydrojets rotary drill bit
#109Hydrolock nozzle
#110Earth-boring bit
#111Wellbore drill bit nozzle