135218 ⎘
Drill bits; Roller bits characterised by bearing, lubrication or sealing details characterised by lubricating details
Sub-classes:GREASE WITH NANOPARTICLES FOR TRICONE BITS
#2Retainer for rotary cone drill bit
#3Isolated lubrication system for drill bits
#4Cutting roller
#5ROCK BIT HAVING CUTTINGS CHANNELS FOR FLOW OPTIMIZATION
#6TOOLS AND DRILLING SYSTEMS FOR FORMING OR SERVICING A WELLBORE
#7Floating Plug Anti-Leak
#8Coiled-Tubing Fluid-Lubricant Composition and Related Methods
#9HOLE OPENER FOR HORIZONTAL DIRECTIONAL DRILLING
#10DRILL BIT SYSTEM
#11Pressure compensation system for a rotary drilling tool string which includes a rotary steerable component
#12Coated surfaces for bearings used in drilling motors
#13Bearing assembly for drilling a subterranean formation
#14Roller reamer integral pressure relief assembly
#15Sealing elements for roller cone bits
#16HYBRID ROLLER-MILL BIT AND HYBRID ROLLER-DRAG BIT
#17HOLE FORMING TOOL WITH AT LEAST ONE ROTATABLE CUTTING MEMBER
#18Methods for forming or servicing a wellbore, and methods of coating surfaces of tools
#19Cutter for boring head
#20Bore tube for a pressure compensation system in a roller cone drill bit
#21By-pass fluid passageway for drill tool
#22Semi-sealed rotary drill tool
#23Bearings for downhole tools, downhole tools incorporating such bearings, and related methods
#24External, divorced PDC bearing assemblies for hybrid drill bits
#25Multi-Piece Body Manufacturing Method Of Hybrid Bit
#26Intergland grease
#27Drill bit having improved journal bearings
#28Compensator clip ring retainer cap for a roller cone drill bit
#29BICOMPONENT SEALS COMPRISING ALIGNED ELONGATED CARBON NANOPARTICLES
#30High-temperature lubricants comprising elongated carbon nanoparticles for use in subterranean formation operations
#31Roller cone seal failure detection using an integrated computational element
#32Flow bypass compensator for sealed bearing drill bits
#33High-temperature lubricants comprising elongated carbon nanoparticles for use in subterranean formation operations
#34Hole opener bearing arrangement
#35Floating plug pressure equalization in oilfield drill bits
#36Methods and system for lubrication pressure relief for a roller cone drill bit
#37Wellbore tools with non-hydrocarbon-based greases and methods of making such wellbore tools
#38Floating plug pressure equalization in oilfield drill bits
#39Grease distribution system for roller cone bit passing through a retaining bore in the head
#40Method and apparatus for reducing lubricant pressure pulsation within a rotary cone rock bit
#41Rotatable cutting tool and tool holder assembly
#42Modular hybrid drill bit
#43Rotary roller reamer
#44External, divorced PDC bearing assemblies for hybrid drill bits
#45Roller cone drill bit with lubricant pressure relief mechanism and method
#46Downhole lubrication system
#47Downhole lubrication system
#48Drill bits for drilling wells
#49Pressure compensator for drill bit
#50METHOD AND SYSTEM FOR TRACKING LUBRICANT LEAKAGE FROM DOWNHOLE DRILLING EQUIPMENT
#51MODULAR HYBRID DRILL BIT
#52Fiber Reinforced Pressure Compensator Diaphragm
#53Lubricated Diamond Bearing Drill Bit
#54Non-Grease Type Bearing Lubricant
#55Rotary roller reamer
#56Rotary cutter for tunnel boring machine
#57Rotary Roller Reamer
#58MAGNETIC EARTH BIT SEAL
#59Drill bit reservoir with controllable relief pressure
#60Earth bit having a pressure relief valve
#61Enhanced Drill Bit Lubrication Apparatus and Method
#62Enhanced drill bit lubrication apparatus and method
#63Grease filling arrangement in a cutter for a boring head
#64Roller cone drill bit with debris flow paths through associated support arms
#65Drill bit lubricant utilizing a sulfur-phosphorous EP agent
#66Earth boring bit with tilted hydrodynamic thrust bearing
#67Drill bit lubricant with enhanced load carrying/anti wear properties
#68Grease filling arrangement in a cutter for a boring head
#69Micropore engagement surfaces for earth boring bit
#70Rotary roller reamer
#71Rock bit with grease composition utilizing polarized graphite
#72Bearing and lubrication system for earth boring bit
#73Dual function pressure compensator for a lubricant reservoir of a sealed rock bit
#74Drilling system with drill bit for mining machine