135224 ⎘
Drill bits; Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with non-expansible roller cutters Longitudinal axis roller reamers, e.g. reamer stabilisers
SPLINED/GROOVED 2 PIECE BIT ASSEMBLY
#2Slimline stop collar with seal to prevent micro-annulus leakage
#3Splined/grooved 2 piece bit assembly
#4CUTTER ASSEMBLY
#5Dual Angle Wedge Retention System
#6ADJUSTABLE DRILL STRING REAMER
#7Extended surface system with helical reamers
#8Deploying material to limit losses of drilling fluid in a wellbore
#9Bottomhole assembly (BHA) stabilizer or reamer position adjustment methods and systems employing a cost function
#10Service connector
#11Wellbore reamer
#12Roller reamer
#13Multifunction wellbore conditioning tool
#14Supporting a string within a wellbore with a smart stabilizer
#15Roller reamer with mechanical face seal
#16Roller reamer with labyrinth seal assembly
#17Roller reamer integral pressure relief assembly
#18Rotary steerable reamer lock and methods of use
#19Method and system for a hole opener
#20Rotary downhole tool
#21Bi-center bit and drilling tools with enhanced hydraulics
#22Apparatus and method of alleviating spiraling in boreholes
#23Reamer with replaceable rolling cutters
#24Method and system for a hole opener
#25Reaming tool and methods of using the reaming tool in a wellbore
#26Reamer assembly
#27RFID device for use downhole
#28Monolithic blade stabiliser tool for drill string
#29Intelligent boring tool
#30Downhole assembly, tool and method
#31Method and apparatus for reaming and/or stabilizing boreholes in drilling operations
#32Mud motor with integrated reamer
#33Reamer for Use in Drilling Operations
#34Reamer for Use in Drilling Operations
#35Downhole motor
#36ONE PIECE REAMER FOR USE IN BORING OPERATIONS OF GAS AND OIL MINING
#37Method and system for a hole opener
#38Downhole stabilizer
#39Reamer with replaceable rolling cutters
#40Downhole assembly, tool and method
#41Downhole cutting tool
#42Roller reamer compound wedge retention
#43Ball and socket roller reamer and keyseat wiper
#44Drill Bits With Rolling Cone Reamer Sections
#45Rotary roller reamer
#46Ultra-hard matrix reamer elements and methods
#47Rotary roller reamer
#48Expandable stabilizer with roller reamer elements
#49Rotary Roller Reamer
#50Roller reamer
#51Method of securing a rotary cutter to a body of a down hole tool and a rotary cutter assembly
#52Rotary roller reamer
#53Blockless reamer
#54Bidirectional stabilizer with impact arrestors and blades with wrap angles
#55Bidirectional stabilizer