135172 ⎘
Special methods or apparatus for drilling; Directional drilling; Deflecting the direction of boreholes with means for locking sections of a pipe or of a guide for a shaft in angular relation, e.g. adjustable bent sub
DEVICES, SYSTEMS, AND METHODS FOR DOWNHOLE SURVEYING
#2AIR ROTARY SYSTEM FOR A DOWN HOLE DRILL ASSEMBLY
#3A DRILL HEAD FOR USE WITH MICROTUNNELING APPARATUS
#4PUSH THE BIT ROTARY STEERABLE SYSTEM
#5Rotary steerable system with multiple rows of actuators
#6STEERABILITY OF DOWNHOLE RANGING TOOLS USING ROTARY MAGNETS
#7System and method for position and orientation detection of a downhole device
#8ROTARY STEERABLE SYSTEM
#9Transmission assembly for transmitting torque across an angular connection between a torsional drive component and a torsionally driven component
#10Sidetrack casing assembly for drilling sidetrack wellbores
#11Downhole adjustable bend assemblies
#12Two-stage reverse-torque bent screw orientation tool
#13SELF-ALIGNING BEARING ASSEMBLY FOR DOWNHOLE MOTORS
#14Push the bit rotary steerable system
#15Steerable drilling device
#16Directional drilling
#17Wired downhole adjustable mud motors
#18SYSTEMS AND METHODS FOR SIDETRACKING OPERATIONS
#19Method for real-time pad force estimation in rotary steerable system
#20Systems for a dissolvable material based downhole tool
#21Flow control choke with curved interfaces for wellbore drilling operations
#22Fluid based intermittent powering of downhole operations
#23DIRECTIONAL PULSE POWER DRILLING
#24Selective electrode usage for directional pulse power drilling
#25Selective electrode usage for directional pulse power drilling from a single power source
#26Steerability of downhole ranging tools using rotary magnets
#27Efficient and intelligent steering drilling system and drilling method
#28Drilling apparatus and method for use with rotating drill pipe
#29Drive Shaft Assembly for Downhole Drilling and Method for Using Same
#30Motor power section with integrated sensors
#31Dual piston rotary steerable system
#32Rotary steerable system with central distribution passages
#33Mechanical rotary steering drilling tool
#34Self-adjusting directional drilling apparatus and methods for drilling directional wells
#35Shape memory alloy shaft alignment coupler for downhole tools
#36Controllable drilling head
#37Push the bit rotary steerable system
#38Wired downhole adjustable mud motors
#39Transmission assembly for transmitting torque across an angular connection between a torsional drive component and a torsionally driven component
#40Downhole telemetry system having a mud-activated power generator and method therefor
#41Downhole telemetry system having an electro-magnetic reciever and a mud pulser and method therefor
#42Method, apparatus by method, and apparatus of guidance positioning members for directional drilling
#43HYDRAULIC FRACTURE COMPOSITION AND METHOD
#44Drive shaft assembly for downhole drilling and method for using same
#45Downhole adjustable bend assemblies
#46DIRECTIONAL DRILLING CONTROL SYSTEM AND METHODS
#47Self initiating bend motor for coil tubing drilling
#48Rotary steerable drilling assembly with a rotating steering device for drilling deviated wellbores
#49Steering pad overextension prevention for rotary steerable system
#50Self-adjusting downhole motor
#51Pad retention assembly for rotary steerable system
#52Simple rotary steerable drilling system
#53Directional drilling
#54Self-aligning bearing assembly for downhole motors
#55Inferring orientation parameters of a steering system for use with a drill string
#56Hybrid rotary guiding device
#57Directional drilling system with cartridges
#58Rotary steerable system
#59Compound angle bearing assembly
#60Down-hole motor universal joint assembly
#61Strategic flexible section for a rotary steerable system
#62Control for rotary steerable system
#63Push the bit rotary steerable system
#64Adjustable double bend steerable drilling motor
#65Rotary steerable system having multiple independent actuators
#66System and method for evaluating a formation using a statistical distribution of formation data
#67Hybrid rotary steerable system and method
#68Universal vane actuator system with corner seals and differential rotation mechanisms
#69Coring apparatus
#70ROTARY DRIVE APPARATUS
#71Auto-adjustable directional drilling apparatus and method
#72FIXED BEND ASSEMBLY
#73Wired downhole adjustable mud motors
#74Hybrid bearing assemblies for downhole motors
#75POSITIONING CONTACT SURFACE WITH A RADIAL EXTENSION THAT DECREASES FOR A DIRECTIONAL DRILLING ASSEMBLY
#76Nonstop transition from rotary drilling to slide drilling
#77Steering assembly for directional drilling of a wellbore
#78Wired motor for realtime data
#79Enclosed module for a downhole system
#80Enclosed module for a downhole system
#81Articulated joint for downhole steering assembly
#82Hydraulic fracture composition and method
#83Drilling system, biasing mechanism and method for directionally drilling a borehole
#84Modular electro-mechanical assembly for downhole device
#85Downhole adjustable bend assemblies
#86Drilling assembly having a tilted or offset driveshaft
#87Rotationally selectable lock of shaft to housing
#88System and method to control adjustable pads for use in downhole directional drilling assemblies
#89Hydraulic motor for a drilling system
#90COURSE HOLDING METHOD AND APPARATUS FOR ROTARY MODE STEERABLE MOTOR DRILLING
#91Drilling system including a driveshaft/housing lock
#92Rotating disk valve for rotary steerable tool
#93Rotary steerable system having actuator with linkage
#94Automatic steering instructions for directional motor drilling
#95Dual Tunneling and Fracturing Stimulation System
#96Retention system for bottom hole assembly and whipstock
#97Sonde housing having side accessible sonde compartment
#98Method of drilling with an extensible pad
#99Downhole adjustable bend assemblies
#100Steerable mole boring system
#101Directional drilling system with cartridges
#102Window mill hydraulic line connection
#103Downhole telemetry system and method therefor
#104Multi fluid drilling system
#105STIFFNESS TUNING AND DYNAMIC FORCE BALANCING ROTORS OF DOWNHOLE DRILLING MOTORS
#106Roll-stabilized rotary steerable system
#107Hybrid drive for a fully rotating downhole tool
#108Torque generator
#109Adjustable bent housing actuation using radio frequency identification
#110Bottom hole assemblies for directional drilling
#111Method, apparatus by method, and apparatus of guidance positioning members for directional drilling
#112Drilling apparatus with fixed and variable angular offsets
#113Steering force control mechanism for a downhole drilling tool
#114Drilling apparatus with a fixed internally tilted driveshaft
#115Wired motor for realtime data
#116Angular offset drilling tool
#117Compound angle bearing assembly
#118Rotary locking sub for angular alignment of downhole sensors with high side in directional drilling
#119Control for rotary steerable system
#120Rotary steerable system having multiple independent actuators
#121Method of designing and optimizing fixed cutter drill bits using dynamic cutter velocity, displacement, forces and work
#122Augmented drilling system
#123Drilling apparatus with a unitary bearing housing
#124Directional drilling apparatus with an aligned housing bore
#125Adjustable bent housings with measurement mechanisms
#126Drilling assembly utilizing tilted disintegrating device for drilling deviated wellbores
#127Rotary steerable system with a steering device around a drive coupled to a disintegrating device for forming deviated wellbores
#128Rotary steerable drilling assembly with a rotating steering device for drilling deviated wellbores
#129Apparatus and method for drilling a directional borehole in the ground
#130Variable stiffness fixed bend housing for directional drilling
#131Drill bit for pulling material through pilot-channel
#132Motor Power Section with Integrated Sensors
#133Down-Hole Roto-Linear Actuator
#134Drilling direction correction of a steerable subterranean drill in view of a detected formation tendency
#135Directional drilling control system and methods
#136Rotary steerable system
#137Downhole Wireless System for Tunneling Arrangements
#138Directional drilling systems, apparatus, and methods
#139Drilling assembly having a tilted or offset driveshaft
#140METHOD AND APPARATUS FOR STEERING A DRILL STRING AND REAMING WELL BORE SURFACES NEARER THE CENTER OF DRIFT
#141Drilling apparatus with extensible pad
#142Method for guiding a downhole tool underground
#143Method and application for directional drilling with an asymmetric deflecting bend
#144Method and system for drilling a borehole
#145Drive shaft actuation using radio frequency identification
#146Tool face orientation system for drilling boreholes
#147Device to resist rotational forces while drilling a borehole
#148Monitoring control and/or optimization of borehole sidetracking
#149Drilling system, biasing mechanism and method for directionally drilling a borehole
#150System and process for drilling a planned wellbore trajectory with a downhole mud motor
#151Universal joint for downhole motor drive
#152Drilling apparatus using a sealed self-adjusting deflection device for drilling directional wells
#153Drilling assembly using a self-adjusting tilt device and sensors for drilling directional wellbores
#154Drilling apparatus using a self-adjusting deflection device and deflection sensors for drilling directional wells
#155Energy delivery systems for adjustable bent housings
#156Drill bit for a drilling apparatus
#157Automated sliding drilling
#158Tool face control of a downhole tool with reduced drill string friction
#159Adjustment mechanisms for adjustable bent housings
#160Adjustable bent housings with sacrificial support members
#161Adjustable bent housings with disintegrable sacrificial support members
#162Steerable earth boring assembly having flow tube with static seal
#163Drive shaft for steerable earth boring assembly
#164Steerable earth boring assembly
#165Mitigating stick-slip effects in rotary steerable tools
#166System and method for forming a lateral wellbore
#167Uniformly variably configurable drag members in an anit-rotation device
#168Bend angle sensing assembly and method of use
#169PISTON CONVERTER FOR DOWNHOLE DRILLING TOOL
#170PRESSURE AMPLIFIERS FOR DOWNHOLE DRILLING TOOLS
#171Drilling shaft deflection device
#172Steerable rotary drilling devices incorporating a tilted drive shaft
#173Directional drilling system and methods
#174Downhole drilling motor with an adjustment assembly
#175Surface actuated downhole adjustable mud motor
#176Self-adjusting directional drilling apparatus and methods for drilling directional wells
#177Drive shaft assembly for downhole mud motor configured for directional drilling
#178DEVIATED DRILLING SYSTEM UTILIZING STEERABLE BIAS UNIT
#179Directional drilling with adjustable bent housings
#180Bend measurements of adjustable motor assemblies using inclinometers
#181Adjustable straight blade stabilizer
#182Adjustable bend assembly for a downhole motor
#183Downhole mud motor with adjustable bend angle
#184Rotary steerable drilling system
#185Bend measurements of adjustable motor assemblies using magnetometers
#186Active stabilization
#187Method for steering a direction of a drilling device drilling a hole into the ground
#188Enhancing torque electric motor drive and control system for rotary steerable system
#189Downhole mud motor
#190Drill pipe oscillation regime for slide drilling
#191Arrangement and down-the-hole drilling equipment for angular setting of a drill string
#192Directional drilling apparatus and methods
#193Rotational anchoring of drill tool components
#194Downhole adjustable bent motor
#195Steering assembly for directional drilling of a wellbore
#196Dynamic geo-stationary actuation for a fully-rotating rotary steerable system
#197Managing rotational information on a drill string
#198Systems and methods for drilling wellbores having a short radius of curvature
#199Downhole steering system
#200Bend measurements of adjustable motor assemblies using strain gauges
#201DOWNHOLE DIRECTIONAL DRILLING ASSEMBLY
#202Systems and methods for drilling wellbores having a short radius of curvature
#203Rotary steerable drilling tool with electromagnetic steering system
#204System and method for controlled slip connection
#205Directional casing-while-drilling
#206Directional control of a rotary steerable drilling assembly using a variable fluid flow pathway
#207Orienting hanger assembly for deploying MWD tools
#208Apparatus for angular alignment of downhole sensors with high side in directional drilling
#209Directional drilling using a rotating housing and a selectively offsetable drive shaft
#210Rotary locking sub for angular alignment of downhole sensors with high side in directional drilling
#211Articulating component of a downhole assembly, downhole steering assembly, and method of operating a downhole tool
#212Downhole tool with rotational drive coupling and associated methods
#213Drill with integrally formed bent sub and sonde housing
#214Drill string constant velocity connection
#215Method and system for directional drilling and coupling sub
#216Multi-angle rotary steerable drilling
#217Eccentric steering device and methods of directional drilling
#218Adjustable bent housing for directional drill string
#219Drill bit assembly for a directional percussion boring system
#220Down hole motor apparatus and method
#221Rotary steerable drilling tool with a linear motor
#222Coil tubing orienter tool with differential lead screw drive
#223Adjustable mud motor housing assembly
#224Adjustable bend assembly for a downhole motor
#225Tunneling apparatus
#226High dogleg steerable tool
#227Apparatus and method for drilling deviated wellbores that utilizes an internally tilted drive shaft in a drilling assembly
#228Directional drilling control using a bendable driveshaft
#229Directional Drilling Tool
#230Rotary steerable drilling apparatus
#231Apparatus and method for drilling a well
#232High load universal joint for downhole rotary steerable drilling tool
#233System and method for kicking-off a rotary steerable
#234Drilling system, biasing mechanism and method for directionally drilling a borehole
#235Steerable system
#236Method and system for radially expanding a tubular element and directional drilling
#237Mechanism for providing controllable angular orientation while transmitting torsional load
#238System and method for forming a lateral wellbore
#239Directional drilling systems
#240Apparatus for directional drilling
#241Adjustable bent drilling tool having in situ drilling direction change capability
#242Oil operated rotary steerable system
#243Method for forming a geothermal well
#244Point the bit rotary steerable system
#245Bent bearing assembly for downhole mud motor
#246Method and apparatus for controlling an orientable connection in a drilling assembly
#247Rotary steerable assembly inhibiting counterclockwise whirl during directional drilling
#248Systems and Methods for Directional Pulsed-Electric Drilling
#249Methods for directing vertical drilling
#250Downhole guiding tool
#251Steerable ground piercing tools
#252Adjustable rotary steerable system
#253Rotary joint for subterranean drilling
#254System and method for coupling a drill bit to a whipstock
#255METHOD AND APPARATUS FOR CALCULATING AND CORRECTING FOR DIRECTIONAL DRILLING TOOL FACE OFFSETS
#256Horizontal drilling system
#257Downhole drilling utilizing measurements from multiple sensors
#258Azimuthal orientation determination
#259CASING ROTARY STEERABLE SYSTEM FOR DRILLING
#260Guiding device for a drilling device
#261System and method for directional drilling
#262Borehole cutting assembly for directional cutting
#263Drill bit steering assembly
#264Intelligent wellbore propagation system
#265System for controlling flow of an actuating fluid
#266Drill bit with adjustable side force
#267System and method for bent motor cutting structure analysis
#268Annular device for radial displacements of interconnected parts
#269MUD PULSE TELEMETRY SYNCHRONOUS TIME AVERAGING SYSTEM
#270System and method for drilling a deviated wellbore
#271Tilted bit rotary steerable drilling system
#272Air Percussion Drilling In Horizontal Wells
#273Directional drilling control using periodic perturbation of the drill bit
#274Flex joint for downhole drilling applications
#275Rotary steerable tool
#276Coiled tubing orienter tool with differential lead screw drive
#277Rotating Drilling Tool
#278VARIED RPM DRILL BIT STEERING
#279Interlocking engagement mechanism for an adjustable bent housing
#280Eccentric steering device and methods of directional drilling
#281Actuators, actuatable joints, and methods of directional drilling
#282Gauge pads, cutters, rotary components, and methods for directional drilling
#283Drilling assembly with steering unit integrated in drilling motor
#284DIRECTIONAL DRILLING CONTROL USING PERIODIC PERTURBATION OF THE DRILL BIT
#285Steerable system
#286Drive mechanism
#287Dual BHA drilling system
#288Mechanism for providing controllable angular orientation while transmitting torsional load
#289Directional well drilling
#290Steerable drilling system
#291Horizontal drilling system
#292Steerable ground piercing tools
#293Drill bits and tools for subterranean drilling, methods of manufacturing such drill bits and tools and methods of off-center drilling
#294DIRECTIONAL DRILLING CONTROL USING MODULATED BIT ROTATION
#295Tool for locating and plugging lateral wellbores
#296Directional sidetrack well drilling system
#297Vertical direction adjustment tool for downhole drilling apparatus
#298DIRECTIONAL DRILLING CONTROL USING PERIODIC PERTURBATION OF THE DRILL BIT
#299Drilling apparatus and method
#300Downhole surveying utilizing multiple measurements