135128 ⎘
Drives for drilling, used in the borehole
Sub-classes:GAS COMPRESSOR AND SYSTEM AND METHOD FOR GAS COMPRESSING
#2METHOD AND SYSTEMS FOR HEAT RECOVERY FROM GEOTHERMALLY-HEATED FORMATIONS BY DIRECTED FLOW
#3A DRILL HEAD FOR USE WITH MICROTUNNELING APPARATUS
#4FORCE COUPLING ASSEMBLIES AND RELATED SYSTEMS AND METHODS
#5GAS COMPRESSOR AND SYSTEM AND METHOD FOR GAS COMPRESSING
#6Method for monitoring overburden when advance working in the ground, and advance- working device
#7Machine learning proxy model for parameter tuning in oilfield production operations
#8Drilling assembly for removal of an obstacle in a conduit
#9Torque coupling assemblies and related systems and methods
#10Gas compressor and system and method for gas compressing
#11Steering system for use with a drill string
#12Gas compressor and system and method for gas compressing
#13Universal joint
#14Sealing assembly and related methods
#15Drilling speed increasing device driven by downhole motor for generating shock vibration
#16OIL AND GAS RECOVERY ARTICLES
#17Selective activation of motor in a downhole assembly
#18Gas compressor and system and method for gas compressing
#19RECIPROCATION-DAMPENING DRIVE SHAFT ASSEMBLY
#20Systems and methods for constructing permanent magnet motors having increased power density
#21Bearings for downhole drilling motors
#22Gas compressor and system and method for gas compressing
#23Near-bit measurement while drilling system
#24Rotatable sensors for measuring characteristics of subterranean formation
#25Hydroplaning reducing slip ring apparatus
#26Selective activation of motor in a downhole assembly
#27Near-bit ultradeep measurement system for geosteering and formation evaluation
#28INITIATOR NANOCONSTITUENTS FOR ELASTOMER CROSSLINKING AND RELATED METHODS AND ARTICLES
#29Actuation tool having a non-ballistic force generating mechanism
#30Coupling mechanism for driveshaft transmission assembly
#31Gas compressor and system and method for gas compressing
#32Gas compressor and system and method for gas compressing
#33Downhole Outer Drill Bit
#34Synchronizing downhole communications using timing signals
#35Down-Hole Roto-Linear Actuator
#36Eliminating threaded lower mud motor housing connections
#37SELF PROPELLING SUBTERRANEAN VEHICLE
#38Estimating wellbore cement properties
#39Near-bit ultradeep measurement system for geosteering and formation evaluation
#40System for geosteering and formation evaluation utilizing near-bit sensors
#41FORMING A SUBSEA WELLBORE
#42Down-hole communication across a mud motor
#43Wrench for breaking internal connections
#44Center-pillared full-face shaft drilling machine
#45Steerable drilling method and system
#46Directional drilling while conveying a lining member, with latching parking capabilities for multiple trips
#47CV joint for drilling motor and method
#48OIL AND GAS RECOVERY ARTICLES
#49Directional drilling system and methods
#50Hydroplaning reducing slip ring apparatus
#51Drill string with bottom hole assembly transition section having increasing external diameter and method of use
#52Downhole drilling motor with an adjustment assembly
#53Nanofiber strain gauge sensors in downhole tools
#54Analyzing Toolface Velocity to Detect Detrimental Vibration During Drilling
#55Rotatable sensors for measuring characteristics of subterranean formation
#56Initiator nanoconstituents for elastomer crosslinking and related methods
#57Dual device apparatus and methods usable in well drilling and other operations
#58Drilling apparatus
#59Bend measurements of adjustable motor assemblies using strain gauges
#60Drill bit design
#61Rotatable wireline tool of enhanced hydraulic drive consistency
#62Method and system for directional drilling
#63DRILLING DEVICE AND METHOD FOR PRODUCING A BORE
#64High strength corrosion resistant high velocity oxy fuel (HVOF) coating for downhole tools
#65Torque transfer mechanism for downhole drilling tools
#66Method and system for transporting a hydrocarbon fluid
#67SYSTEM TO ENABLE GEOTHERMAL FIELD INTERACTION WITH EXISTING HVAC SYSTEMS, METHOD TO ENABLE GEOTHERMAL FIELD INTERACTION WITH EXISTING HVAC SYSTEM
#68Powered milling clamp for drill pipe
#69Coring system including tensiometer and method of deciding accurate coring using the same
#70Anti-stall mechanism
#71Magnetic drive devices, and related systems and methods
#72Housing, mandrel and bearing assembly positionable in a wellbore
#73Methods and systems for operating a downhole tool
#74Expandable apparatus and related methods
#75Downhole activation system using magnets and method thereof
#76Downhole drilling assembly
#77Downhole drilling assembly
#78Top drive main shaft with threaded load nut
#79Actuation mechanisms for downhole assemblies and related downhole assemblies and methods
#80Drilling apparatus
#81Application of downhole rotary tractor
#82Downhole activation system using magnets and method thereof
#83Subsea casing drilling system
#84Latch assembly
#85Downhole activation system using magnets and method thereof
#86Cutting tool integrated in a drillstring
#87Expandable apparatus and related methods
#88Housing, mandrel and bearing assembly for downhole drilling motor
#89Rotatable wireline tool of enhanced hydraulic drive consistency
#90Downhole drilling assembly
#91Drilling system
#92Expandable reamers for subterranean drilling and related methods
#93Expandable reamer apparatus and related methods
#94Analyzing toolface velocity to detect detrimental vibration during drilling
#95Expandable reamer for subterranean boreholes and methods of use
#96Expandable reamer apparatus
#97Method of selecting a drilling motor for a casing drill string
#98Systems and Methods for Generating Electricity Using a Stirling Engine
#99Composite coating with nanoparticles for improved wear and lubricity in down hole tools
#100Expandable reamer apparatus for enlarging boreholes while drilling
#101Expandable reamer for subterranean boreholes and methods of use
#102Moveable blades and bearing pads
#103Technique and apparatus for drilling and completing a well in one half trip
#104Downhole motor with a continuous conductive path
#105Drill bit assembly
#106Hydraulic drill bit assembly
#107Expandable reamer apparatus for enlarging boreholes while drilling and methods of use
#108Method of avoiding the need for a scraper run in drill out operations and a downhole drilling motor assembly
#109Power transmission unit of an impactor, a hydraulic jet impactor and the application thereof
#110Down hole motor with locking mechanism
#111Expandable reamer apparatus for enlarging subterranean boreholes and methods of use
#112Motor rotary steerable system
#113Drill bit and cylinder body device, assemblies, systems and methods