135203 ⎘
Drill bits Core bits
Sub-classes:CORING TOOLS HAVING CORING SHAFTS WITH ASSOCIATED INTERNAL STATIC SLEEVES
#2Determining Fracture Roughness from a Core
#3WELLBORE OPERATIONS SYSTEM AND METHOD
#4CORE DRILL SYSTEM FOR EXCAVATOR
#5SIDEWALL CORING TOOL SYSTEMS AND METHODS
#6Continuous Sampling Drill Bit
#7Sidewall coring tool systems and methods
#8Continuous sampling drill bit
#9DIAMOND MINING CORE DRILL BIT AND METHODS OF MAKING THE SAME
#10Directional core drilling system
#11DOWNHOLE ROCK MECHANICS CHARACTERISATION TOOL, ASSEMBLY AND METHOD
#12Downhole robotic arm
#13Continuous sampling drill bit
#14ERGONOMIC SHOE INTERFACE SYSTEM FOR CORE DRILLING
#15DRILLING ARRANGEMENTS
#16Coring device
#17Coring drill tool driving structure
#18Fidelity retaining type coring device for rock sample
#19Core sampling and preservation system
#20System for in-situ retained coring of rock sample
#21DRILL CONTROL DEVICE
#22Coring while drilling
#23Core retrieving tool
#24Drill bits with variable cutter alignment
#25Method and apparatus for alternating between coring and drilling without tripping operations
#26Pressured horizontal directional drilling continuous coring device for engineering geological investigation
#27Fast drop inner tube head assembly and system
#28Excavation apparatus with supporting linkage
#29Cutter bit
#30Portable seafloor drill rig for submersible for multi-point core drilling
#31HYBRID DRILL BIT
#32Reservoir characterization with directional permeability
#33DOWNHOLE ROBOTIC ARM
#34Core sampling and analysis using a sealed pressurized vessel
#35Core sampling and analysis using a sealed pressure vessel
#36CORE SAMPLE ORIENTATION
#37Continuous sampling drill bit
#38Core Barrel Stabilizer
#39ANNULAR CUTTER WITH EXCHANGEABLE BIT RING
#40Analyzing fluids in core samples contained in pressurized NMR core holders with 1H and 19F NMR
#41Self-hammering cutting tool
#42Core catchers for coring tools and related coring tools and methods
#43Drill bit for drilling and method for manufacturing same
#44DEEP ROCK QUALITY ASSURANCE CORING DEVICE AND CORING METHOD THEREOF
#45HYBRID DRILL BIT
#46Process for drilling natural gas hydrates with submersible core drilling rig using pressure wireline
#47Rotary drilling tool and method for producing a bore
#48Heavy equipment concrete core drill bit stabilizer
#49Coring apparatus
#50Coring tools including a core catcher
#51Inner barrel shear zone for a coring tool
#52Mitigating drilling circulation loss
#53Coring tools enabling measurement of dynamic responses of inner barrels and related methods
#54Measuring formation porosity and permeability
#55Drill bit
#56CORE SAMPLE ORIENTATION
#57Downhole tool with fixed cutters for removing rock
#58Drill bits with internally tapered blade and trimming cutting elements
#59Core drilling methods and devices
#60Inner barrel crimping connection for a coring tool
#61CORE SAMPLE ORIENTATION
#62Mitigating drilling circulation loss
#63Braking devices for drilling operations, and systems and methods of using same
#64Single Waterway Drill Bits And Systems And Methods For Using Same
#65Analyzing fluids in core samples contained in pressurized NMR core holders with 1H and 19F NMR
#66Coring inner barrel connections for core of rock protection
#67Sealed core storage and testing device for a downhole tool
#68Induced material segregation methods of manufacturing a polycrystalline diamond tool
#69Core drill bit
#70Coring tools including core sample flap catcher and related methods
#71Core saw and support frame structure
#72Use of pre-stressed steel strand in the procedure of multi-angle drilling coring
#73DOWNHOLE ROBOTIC ARM
#74Core catcher
#75Estimation of optimum tripping schedules
#76Core drill apparatus for installation in excavator
#77Drill bits having flushing
#78Activation modules for obstructing entrances to inner barrels of coring tools and related coring tools and methods
#79Fixed cutter drill bit having core receptacle with concave core cutter
#80Core bit designed to control and reduce the cutting forces acting on a core of rock
#81Core lifter
#82Hydraulic drilling apparatus intended to drill boreholes
#83Drill bit for drilling and method for manufacturing same
#84Estimating wellbore cement properties
#85Sidewall coring structure directly driven by an electric motor
#86Coring tools with improved reliability during core jams, and related methods
#87CORING TOOLS EXHIBITING REDUCED ROTATIONAL ECCENTRICITY AND RELATED METHODS
#88Length-adjustable connector for a downhole tool
#89CORE SAMPLE ORIENTATION
#90INFILTRATED DIAMOND WEAR RESISTANT BODIES AND TOOLS
#91Coring tools and related methods
#92Directional drilling while conveying a lining member, with latching parking capabilities for multiple trips
#93Connection replacement for a drilling mud motor
#94Measuring formation porosity and permeability
#95Rolling cutter assemblies
#96Plow-shaped cutting elements for earth-boring tools, earth-boring tools including such cutting elements, and related methods
#97Continuous fiber-reinforced tools for downhole use
#98Top surface drilling device and methods for drilling a core in a top surface
#99Transverse sidewall coring
#100DRILL BIT
#101Mobile oilfield tool service center
#102Fiber-reinforced tools for downhole use
#103Coring tools for managing hydraulic properties of drilling fluid and related methods
#104Drill bits with core feature for directional drilling applications and methods of use thereof
#105Activation modules for obstructing entrances to inner barrels of coring tools and related coring tools and methods
#106Systems and methods for core recovery
#107Coring tools exhibiting reduced rotational eccentricity and related methods
#108Drill bit
#109Method of filling a coring tool inner barrel with a coring fluid
#110OBTAINING A DOWNHOLE CORE SAMPLE MEASUREMENT USING LOGGING WHILE CORING
#111Coring tools and related methods
#112Seated hammer apparatus for core sampling
#113Drill bits with axially-tapered waterways
#114Frangible core barrel
#115TOP MOUNT DUAL BIT WELL DRILLING SYSTEM
#116Diamond impregnated bit with aggressive face profile
#117Coring tools with improved reliability during core jams, and related methods
#118Core barrel and related drilling apparatus and method
#119Impregnated drill bits with integrated reamers
#120Adjustable coring assembly and method of using same
#121BIT FOR DRILLING WELLS AND ASSOCIATED DRILLING METHOD
#122Orientation of cutting element at first radial position to cut core
#123Fixed cutter drill bit with multiple cutting elements at first radial position to cut core
#124Coring tools including core sample flap catcher and related methods
#125Coring tool including core bit and drilling plug with alignment and torque transmission apparatus and related methods
#126Mechanical core jam indicator for coring tools, coring tools including such core jam indicators, and related methods
#127WD sidewall coring tool
#128CUTTING MEMBERS WITH INTEGRATED ABRASIVE ELEMENTS
#129Coring tools and methods for making coring tools and procuring core samples
#130Through Casing Coring
#131CORE LIFTER
#132Single-waterway drill bits and systems for using same
#133CORE AND DRILL BITS WITH INTEGRATED OPTICAL ANALYZER
#134Coring bit to whipstock systems and methods
#135TELESCOPING CORE BARREL
#136Drill bits with axially-tapered waterways
#137Methods for manipulating cutting elements for earth-boring drill bits and tools
#138Drill bit alloy
#139High productivity core drilling system
#140Reaming shell for mining
#141Downhole coring tools and methods of coring
#142Tool for Removing Drill Cores from Hammer Drill Bits
#143CORE SAMPLE ORIENTATION
#144ABRASIVE CORING BIT
#145Coring tools and related methods
#146Core Barrel and Related Drilling Apparatus and Method
#147Infiltrated diamond wear resistant bodies and tools
#148Sample Encapsulation and Cache Device and Methods
#149Impregnated drill bits with integrated reamers
#150CORE SAMPLE ORIENTATION
#151Small core generation and analysis at-bit as LWD tool
#152Small core generation and analysis at-bit as LWD tool
#153DRY DRILLING AND CORE ACQUISITION SYSTEM
#154Core drill bit
#155Bitless Drilling System
#156Core lifter
#157CORE SAMPLE ORIENTATION
#158Diamond impregnated bit with aggressive face profile
#159Core drill bits with enclosed fluid slots
#160Tubular soil auger and manufacturing method
#161Methods, systems, and devices for manipulating cutting elements for earth-boring drill bits and tools
#162Abrasive tip for abrasive tool and method for forming and replacing thereof
#163Bit for drilling wells and associated drilling method
#164Drill bits with axially-tapered waterways
#165Air hammer coring apparatus and method
#166Drill bits with enclosed slots
#167Drill bits with enclosed fluid slots and method
#168Drill bits with increased crown height
#169Drill bits with notches and enclosed slots
#170Drill bits with enclosed fluid slots and internal flutes
#171CORE SAMPLE ORIENTATION
#172Hole coring system with lever arm
#173Completion liner delivery method with bridge plug capture
#174Core drill bit with extended crown height
#175Core sample orientation
#176CORE DRILL ASSEMBLY WITH ADJUSTABLE TOTAL FLOW AREA AND RESTRICTED FLOW BETWEEN OUTER AND INNER BARREL ASSEMBLIES
#177Drill bit
#178Hole coring system
#179Rotating dry drilling bit
#180Self cleaning coring bit
#181Coring bit with uncoupled sleeve
#182Hollow auger head assembly
#183Continuous sampling drill bit
#184Combination coring machine and vacuum excavation rig
#185Boring and milling machine for paved slabs