135142 ⎘
Drives for drilling with combined rotary and percussive action
Sub-classes:Drill assembly for percussive drilling, a drill bit and a drill string element
#2Drill assembly for percussive drilling
#3Rotary-percussive hydraulic perforator provided with a stop piston and a braking chamber
#4Hydraulic rotary-percussive hammer drill provided with a stop piston
#5Percussion drill bit with at least one wear insert, related systems, and methods
#6Apparatus, rock breaking machine and method of monitoring rock breaking machine
#7Flushing system in drill bits
#8Percussion drill bit with at least one wear insert, related systems, and methods
#9DRILLING TOOL AND DRILLING METHOD
#10Flow diversion sub for a down-the-hole drill hammer
#11Modified surface properties of percussion tools used in downhole drilling
#12Shank adaptor with strengthened flushing hole
#13Percussion drilling device
#14Downhole vibration for improved subterranean drilling
#15ROCK DRILLING RIG
#16Modified surface properties of percussion tools used in downhole drilling
#17Rotary impact tool
#18Percussion drill bit with at least one wear insert, related systems, and methods
#19Remote control of stroke and frequency of percussion apparatus and methods thereof
#20Drilling apparatus
#21Control method
#22Method for steering a direction of a drilling device drilling a hole into the ground
#23Device and method related to lubrication of components in a rock drilling machine and rock drilling machine
#24Fluid coupling drive system for a drill rig air compressor
#25Seated hammer apparatus for core sampling
#26Penetrating A Subterranean Formation
#27Field removable choke for mounting in the piston of a rotary percussion tool
#28Top mounted choke for percussion tool
#29IMPACT DEVICE AND METHOD OF DISMOUNTING THE SAME
#30Electronics for a thin bed array induction logging system
#31Rotary impact drill and double-layer drilling rod mechanism
#32Striker member, and a drilling machine comprising a striker member
#33Electronics for a thin bed array induction logging system
#34Hydraulic rotary percussive device intended to drill boreholes
#35Radial vibrational apparatus
#36Percussion assisted rotary earth bit and method of operating the same
#37Drilling machine
#38Method and arrangement for lubricating drill shank of rock drilling machine
#39METHOD AND SYSTEM FOR DRILLING USING GAS AS A DRILLING FLUID
#40Method and apparatus for drilling large-diameter hole in ground
#41DRY DRILLING AND CORE ACQUISITION SYSTEM
#42Foot valve assembly for a down hole drill
#43Rock drilling machine and axial bearing module
#44Timed impact drill bit steering
#45Arrangement and method comprising a flushing head for a rock drilling machine, and rock drilling machine comprising the arrangement
#46Method and system for installing geothermal transfer apparatuses with a sonic drill
#47Rock drilling equipment and a method in association with same
#48Percussion assisted rotary earth bit and method of operating the same
#49Method and system for installing geothermal heat exchangers, micropiles, and anchors using a sonic drill and a removable or retrievable drill bit
#50Method for controlling percussion device, software production, and percussion device
#51Hydraulic rotary percussive device of the drill type
#52Percussion adapter for positive displacement motors
#53Composite coating with nanoparticles for improved wear and lubricity in down hole tools
#54Jack element in communication with an electric motor and or generator
#55Drilling at a resonant frequency
#56Rock drilling machine and rock drilling system
#57Bit assembly
#58Hydraulic rotary-percussive hammer drill
#59Pressure reversing valve for a fluid-actuated, percussive drilling tool
#60Dual impact fluid driven hammering tool