135222 ⎘
Drill bits Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
Sub-classes:WHIPSTOCK FOR USE WITH A MILL BIT INCLUDING VARYING MATERIAL REMOVAL RATES
#2Reaming Device and Method
#3EARTH BORING REAMER
#4REAMER STATUS DETECTION USING TURBINE RPM
#5DRILL BIT AND METHOD FOR DRILLING HOLE FOR PIPE TO BE INSTALLED IN GROUND
#6BIT CUTTING STRUCTURE AND PDC BIT FOR HIGHLY ABRASIVE FORMATIONS
#7EXPANDING DRILL DEVICE
#8Downhole Reamer with Rotating Sleeve
#9SYSTEM AND METHOD FOR CONSTRUCTION AND COMPLETION OF PRODUCTION AND INJECTION WELLS IN THE PRE-SALT FIELDS
#10TWO PART MILLING AND RUNNING TOOL EMPLOYING A BODY LOCK RING
#11MULTILATERAL DOWNHOLE ASSEMBLY EMPLOYING DEGRADABLE MATERIAL TO COUPLE ITS MULTILATERAL DEFLECTOR ASSEMBLY AND RUNNING TOOL
#12MULTILATERAL MILLING ASSEMBLY EMPLOYING DEGRADABLE MATERIAL
#13MULTI-FUNCTIONAL WELLBORE CONDITIONING SYSTEM
#14Threaded 2 piece bit assembly
#15DOWNHOLE TOOL, BOTTOMHOLE ASSEMBLY, AND DRILLING METHOD USING SAME
#16WHIPSTOCK FOR USE WITH A MILL BIT INCLUDING VARYING MATERIAL REMOVAL RATES
#17FLUID OPERATED MOTOR FOR RUNNING CASING WITH BYPASS FOR PUMPING LOST CIRCULATION MATERIAL
#18METHODS AND APPARATUS FOR REMOVING SECTIONS OF A WELLBORE WALL
#19Excavation boring and shoring tool
#20EXCAVATION AND SHORING EQUIPMENT
#21System and method for construction and completion of production and injection wells in the pre-salt fields
#22HDD REAMER HAVING REMOVABLE CUTTING TEETH
#23Underground Drill Rig And Systems And Methods Of Using Same
#24Excavation boring and shoring method and equipment
#25FULL-FACE SHAFT TUNNEL BORING MACHINE SYSTEM
#26Drill Bore Protection Device and Method
#27Hydraulically driven rotating string reamer and methods
#28Force measurements about secondary contacting structures
#29Multifunctional drilling enhancement tool and method
#30Modified whipstock design integrating cleanout and setting mechanisms
#31HDD reamer having removable cutting teeth
#32Wellbore reaming tool having fixed mounted gouging cutters
#33Downhole cutting tool having cutting element with nonplanar face to improve cutting efficiency and durability
#34Modular reamer
#35Force measurements about secondary contacting structures
#36Particle impact drill bits and associated methods
#37Drilling and milling tool
#38Drilling Dynamics Data Recorder
#39REAMING TOOL
#40Eccentric reaming tool
#41Drilling assembly for removal of an obstacle in a conduit
#42Downhole tool
#43Whipstock for use with a mill bit including varying material removal rates
#44Mill bit including varying material removal rates
#45Formation evaluation at drill bit
#46Drill assembly and method of using same
#47WELLBORE REAMING SYSTEMS AND DEVICES
#48DIRECTIONAL BORING SYSTEMS AND METHODS
#49HDD reamer having removable cutting teeth
#50Coring device
#51Coring drill tool driving structure
#52Downhole eccentric reamer tool and related systems and methods
#53Underground drill rig and systems and methods of using same
#54Cutting head and method for horizontal directional tunneling
#55Reducing friction in a drill string and cleaning a wellbore
#56METHOD AND APPARATUS FOR REAMING WELL BORE SURFACES NEARER THE CENTER OF DRIFT
#57Drilling and milling tool
#58Reamer Wear Protection Assembly and Method
#59HDD reamer having removable cutting teeth
#60Downhole tool
#61Deploying material to limit losses of drilling fluid in a wellbore
#62METHODS AND APPARATUS FOR REMOVING SECTIONS OF A WELLBORE WALL
#63Cutting element with nonplanar face to improve cutting efficiency and durability
#64Point-the-bit bottom hole assembly with reamer
#65Dual-speed dual—core enhanced drilling equipment
#66Drilling dynamics data recorder
#67Drilling dynamics data recorder
#68Push-the-bit bottom hole assembly with reamer
#69Drill bore protection device and method
#70Hole opener for directional drilling
#71Self-propelled drilling head
#72Slide reamer and stabilizer tool
#73Wellbore reaming systems and devices
#74Intelligent Control of Drill Pipe Torque
#75Reamer with cutting inserts for use in drilling operations
#76Reamer cutting insert for use in drilling operations
#77Boring apparatus and method
#78Apparatus for drilling an oil well using a downhole powered rotating drill shoe mounted on casing or liner
#79Prediction of cutting size and shape generated by a drill bit
#80Stepped downhole tools and methods of use
#81Directional drilling systems, apparatuses, and methods
#82BIDIRECTIONAL ECCENTRIC STABILIZER
#83Borehole conditioning tools
#84Cutting elements comprising waveforms and related tools and methods
#85Method and apparatus for reaming well bore surfaces nearer the center of drift
#86Over-bit reamer
#87Eccentric reaming tool
#88Slide reamer and stabilizer tool
#89Downhole machining tool
#90Reaming device connecting to downhole motor with paralleled driving structure
#91Enhanced endcap ram accelerator system
#92Modular reaming device
#93Rotary steerable reamer lock and methods of use
#94Float equipment for a wellbore
#95TOOL FOR ROUGHENING A BOREHOLE SURFACE
#96Hybrid cutting structures with blade undulations
#97Automated optimization of downhole tools during underreaming while drilling operations
#98Method of drilling with an extensible pad
#99Integral electrically isolated centralizer and swell packer system
#100Wellbore reaming tool having shear cutters and gouging cutters
#101Expandable downhole tool assemblies, bottom-hole assemblies, and related methods
#102Cutting elements configured to reduce impact damage and related tools and methods
#103Stacked-plate reamer
#104Boring apparatus and method
#105Method and system for a hole opener
#106Downhole tools with progressive cavity sections, and related methods of use and assembly
#107Reamer for use in drilling operations
#108Kerfing hybrid drill bit and other downhole cutting tools
#109Rotational drill bits and apparatuses including the same
#110Rotary percussive piloted rock drill bit
#111WELL DRILLING SYSTEM
#112Systems and methods for reducing bit damage in a landing tool
#113REAMING TOOL
#114Multiple speed drill bit assembly
#115Real time drilling monitoring
#116Slide reamer and stabilizer tool
#117Downhole milling cutting structures
#118Drilling dynamics data recorder
#119Reamer cutting insert for use in drilling operations
#120Tooth attachment for a drill and a drill incorporating the same
#121Down-the-hole drilling device
#122Bi-directional drilling systems and methods
#123METHOD AND APPARATUS FOR REAMING WELL BORE SURFACES NEARER THE CENTER OF DRIFT
#124Borehole conditioning tools
#125Drill bit for pulling material through pilot-channel
#126Rotary percussive piloted rock drill bit
#127Hybrid mechanical-laser drilling equipment
#128Method and system for a hole opener
#129Method and apparatus for reaming well bore surfaces nearer the center of drift
#130Anchor rod multi-section reaming machine tool and application thereof
#131Reamer with polycrystalline diamond compact inserts
#132METHOD AND APPARATUS FOR STEERING A DRILL STRING AND REAMING WELL BORE SURFACES NEARER THE CENTER OF DRIFT
#133Drilling apparatus with extensible pad
#134REAMING SYSTEM, DEVICE, AND ASSEMBLY
#135Method for putting together a down-the-hole drilling apparatus for plastic pipe drilling and a down-the-hole drilling apparatus
#136Stabilizer-reamer for drill string
#137HOLE OPENER AND METHOD FOR DRILLING
#138Reamer assembly
#139SHOE FOR A TUBULAR ELEMENT IN A WELLBORE
#140Polycrystalline diamond percussion drill bits using low thrust and torque and incorporating PCD chisel type inserts, or combination of PCD chisel type inserts with PCD conical inserts, for application with small diameter drill bits
#141Cutting elements for earth-boring tools, earth-boring tools including such cutting elements, and related methods
#142Over-bit reamer
#143Drilling tool
#144Methods of forming and methods of repairing earth-boring tools
#145Intelligent control of drill pipe torque
#146Activation mechanism for a downhole tool and a method thereof
#147Model for estimating drilling tool wear
#148Surface coating for metal matrix composites
#149Ram accelerator system with endcap
#150Cutting structures, tools for use in subterranean boreholes including cutting structures and related methods
#151Stacked-plate reamer
#152System and method for forming a lateral wellbore
#153ECCENTRIC CONES FOR ROCK CUTTING
#154Directional drilling while conveying a lining member, with latching parking capabilities for multiple trips
#155Methods of forming earth-boring tools utilizing expandable reamer blades
#156One trip liner drilling and cementing
#157Lower mill spaced cutting ring structure
#158Rolling cutter assemblies
#159Plow-shaped cutting elements for earth-boring tools, earth-boring tools including such cutting elements, and related methods
#160Continuous fiber-reinforced tools for downhole use
#161Predicting drillability based on electromagnetic emissions during drilling
#162Mobile oilfield tool service center
#163Torque control device for a downhole drilling assembly
#164Fiber-reinforced tools for downhole use
#165Wellbore mill having shear cutters and gouging cutters
#166Reamer for use in drilling operations
#167Mill blade torque support
#168Expandable reamer assemblies, bottom hole assemblies, and related methods
#169Hybrid drill bits having increased drilling efficiency
#170Unbalance force identifiers and balancing methods for drilling equipment assemblies
#171Hybrid drill bits
#172Boring apparatus and method
#173METHOD FOR PUTTING TOGETHER OF A DRILLING DEVICE AND DRILLING DEVICE
#174Downhole assembly, tool and method
#175DOWNHOLE APPARATUS AND METHOD
#176Apparatus for drilling deeper and wider well bore with casing
#177Oscillating mud motor
#178Mud motor with integrated reamer
#179Reamer for use in drilling operations
#180Boring apparatus and method
#181Extendable pilot for barrel cutter
#182Hybrid cutting structures with blade undulations
#183Slide reamer and stabilizer tool
#184Superhard constructions and methods of making same
#185Ice auger assembly incorporating an ice reaming blade
#186Digging bit
#187Downhole sensor tool for measuring borehole conditions with fit-for-purpose sensor housings
#188Powered reaming device
#189Downhole actuation apparatus and associated methods
#190Drill bit
#191Hydraulic activation of mechanically operated bottom hole assembly tool
#192Systems and methods of adjusting weight on bit and balancing phase
#193Reamer shoe attachment for flexible casing shoe
#194TOP MOUNT DUAL BIT WELL DRILLING SYSTEM
#195Method and system for transporting a hydrocarbon fluid
#196FRICTION STIRRING AND ITS APPLICATION TO DRILL BITS, OIL FIELD AND MINING TOOLS, AND COMPONENTS IN OTHER INDUSTRIAL APPLICATIONS
#197Method and system for a hole opener
#198Reamer and bit interaction model system and method
#199Impregnated drill bits with integrated reamers
#200Roof bolt installation tool
#201STEERABLE WELL DRILLING SYSTEM
#202Hydraulic activation of mechanically operated bottom hole assembly tool
#203SYSTEM AND METHOD FOR HORIZONTAL DIRECTIONAL DRILLING AND PRODUCT PULLING THROUGH A PILOT BORE
#204Reamer blades exhibiting at least one of enhanced gage cutting element backrakes and exposures and reamers so equipped
#205Hole enlargement drilling device and methods for using same
#206Thermally stable polycrystalline compacts for reduced spalling, earth-boring tools including such compacts, and related methods
#207Drill bit assembly for a directional percussion boring system
#208Method and apparatus for reaming well bore surfaces nearer the center of drift
#209Method and apparatus for operating a downhole tool
#210Downhole drilling assembly
#211Downhole drilling assembly
#212Reamer with replaceable cutters
#213CUTTERS FORMING A HELIX ORIENTED IN THE DIRECTION OF REAMING
#214Method and apparatus for reaming well bore surfaces nearer the center of drift
#215Rotational drill bits and drilling apparatuses including the same
#216Underreamer for increasing a wellbore diameter
#217ROTATING DRILLING STABILIZER
#218Downhole dual cutting reamer
#219Expandable reamer assemblies, bottom-hole assemblies, and related methods
#220Downhole tool actuator
#221Apparatus and method for installing ground anchoring systems
#222Auger bit with replaceable cutting bit
#223Downhole assembly, tool and method
#224Systems and methods for hydraulic balancing downhole cutting tools
#225Drill Assembly
#226TWO-CENTRE ROTARY BORING BIT AND METHOD FOR DEEPENING AN EXISTING WELL
#227Device and method usable in well drilling and other well operations
#228Drill bit with a force application device using a lever device for controlling extension of a pad from a drill bit surface
#229Face stabilized downhole cutting tool
#230Utilization of expandable reamer blades in rigid earth-boring tool bodies
#231Helical drill bit for an auger of a ground excavation assembly, in particular for building excavated piles, and drilling method that uses such a bit
#232Cutting structures for fixed cutter drill bit and other downhole cutting tools
#233System and method for forming a lateral wellbore
#234Cutting structures, tools for use in subterranean boreholes including cutting structures and related methods
#235STEPPED DRILL BIT ASSEMBLY
#236Keyseat Wiper
#237Methods for manipulating cutting elements for earth-boring drill bits and tools
#238Downhole tool activation
#239Turbine driven reaming bit with stability and cutting efficiency features
#240Turbine driven reaming bit with blades and cutting structure extending into concave nose
#241Turbine driven reaming bit with profile limiting torque fluctuation
#242Wellbore conditioning system
#243Downhole cutting tool
#244FIXED CUTTER DRILL BIT HEEL AND BACK-REAM CUTTER PROTECTIONS FOR ABRASIVE APPLICATIONS
#245Ball and socket roller reamer and keyseat wiper
#246Cutting tool integrated in a drillstring
#247Reaming shell for mining
#248Extendable pilot bit for barrel cutter
#249Well bore reamer
#250Rotary Shoe Direct Fluid Flow System
#251Apparatus for drilling faster, deeper and wider well bore
#252Slide reamer and stabilizer tool
#253Method and apparatus for reaming well bore surfaces nearer the center of drift
#254Cutting structures for fixed cutter drill bit and other downhole cutting tools
#255Kerfing hybrid drill bit and other downhole cutting tools
#256Wellbore completion system with reaming tool
#257Reamer
#258Downhole drilling assembly
#259Auger for digging holes
#260Drill bit steering assembly
#261Steering mechanism with a ring disposed about an outer diameter of a drill bit and method for drilling
#262Impregnated drill bits with integrated reamers
#263Method and apparatus for drilling large-diameter hole in ground
#264Drill bit with adjustable side force
#265Drilling apparatus
#266Reamer assembly
#267Drill Bits With Rolling Cone Reamer Sections
#268Fixed cutter drill bit for abrasive applications
#269CASING SHOES INCLUDING CUTTING ELEMENTS, CUTTING ELEMENTS FOR EARTH-BORING TOOL, AND RELATED METHODS
#270Casing and liner drilling shoes having spiral blade configurations, and related methods
#271Apparatus and method for modifying the sidewalls of a borehole
#272Casing and liner drilling shoes with portions configured to fail responsive to pressure, and related methods
#273Casing shoes having drillable and non-drillable cutting elements in different regions and related methods
#274Casing and liner drilling shoes having selected profile geometries, and related methods
#275Casing and liner drilling shoes having integrated operational components, and related methods
#276Exhaust Port in a Protruding Element of a Downhole Drill Bit
#277Tapered Blade Profile on an Outer Bit
#278Inner bit disposed within an outer bit
#279Rock bit
#280Reaming tool
#281Reamer and Bit Interaction Model System and Method
#282Apparatus and method for reaming a wellbore during the installation of a tubular string
#283Gauge pads, cutters, rotary components, and methods for directional drilling
#284Reaming tool
#285BACKUP CUTTING ELEMENTS ON NON-CONCENTRIC EARTH-BORING TOOLS AND RELATED METHODS
#286Ultra-hard matrix reamer elements and methods
#287Drill bit with a retained jack element
#288Directional drilling system
#289BACKUP CUTTING ELEMENTS ON NON-CONCENTRIC REAMING TOOLS
#290FIXED CUTTER DRILL BIT FOR ABRASIVE APPLICATIONS
#291Adaptive control concept for hybrid PDC/roller cone bits
#292Reamers and methods for directional drilling
#293Drill bits with cutters to cut high side of wellbores
#294Directional sidetrack well drilling system
#295Reamer and methods for directional drilling
#296Methods, systems, and devices for manipulating cutting elements for earth-boring drill bits and tools
#297Methods, systems, and tool assemblies for distributing weight between an earth-boring rotary drill bit and a reamer device
#298Process and apparatus for subterranean drilling
#299Drilling apparatus
#300Drilling assemblies including one of a counter rotating drill bit and a counter rotating reamer, methods of drilling, and methods of forming drilling assemblies