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2019
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Invention
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Hybrid roller cone and junk mill bit.
A hybrid bit for use in a wellbore includes: a body having... |
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2018
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Invention
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Hybrid rotary cone drill bit.
A hybrid rotary cone drill bit includes a plurality of legs. A bea... |
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2017
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Invention
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Drill bit having shear cutters with reduced diameter substrate. A bit for drilling a wellbore, in... |
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Invention
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Roller cone bit having gland for full seal capture. A bit for downhole use includes: a leg having... |
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Invention
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Bit for drilling with casing or liner string and manufacture thereof. A bit for drilling with a c... |
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Invention
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Load controlled testing of shear cutters.
A method for testing a shear cutter includes: plunging... |
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Invention
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Hybrid roller cone and junk mill bit. A hybrid bit for use in a wellbore includes: a body having ... |
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2016
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Invention
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Thermomechanical testing of shear cutters. A method for testing thermal fatigue resistance of a s... |
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Invention
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Roller cone drill bit with improved erosion resistance. A method of manufacturing a roller cone f... |
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Invention
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Flow through gauge for drill bit.
An apparatus that includes one or more flow channels and metho... |
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2015
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Invention
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High temperature high heating rate treatment of pdc cutters. A post manufacture method and appara... |
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Invention
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Apparatus to improve the performance of a leached cutter.
A cleaned component having a polycryst... |
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Invention
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Composite diaphragm for roller cone pressure compensation system. To address issues of durability... |
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Invention
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Non-destructive leaching depth measurement using capacitance spectroscopy. A method of characteri... |
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Invention
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Industrial tools with thermoset coating.
A method for applying a coating to a surface of an indu... |
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Invention
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Industrial tools with thermoset coating. A method for applying a coating to a surface of an indus... |
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Invention
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Ultra-high rop blade enhancement. A drill bit for drilling a hole in an earth formation includes ... |
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Invention
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Use of tungsten carbide tube rod to hard-face pdc matrix.
A hardfaced infiltrated matrix downhol... |
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Invention
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Short matrix drill bits and methodologies for manufacturing short matrix drill bits. A short matr... |
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Invention
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Short matrix drill bits and methodologies for manufacturing short matrix drill bits.
A short mat... |
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Invention
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Manufacture of low cost bits by infiltration of metal powders.
An apparatus and method for manuf... |
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Invention
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Field removable choke for rotary percussion tool. A choke assembly for controlling air flow into ... |
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Invention
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Drill bit for horizontal directional drilling.
A bit body for a drill bit for horizontal directi... |
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Invention
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Mill-drill cutter and drill bit. A mill-drill cutter for an earth boring bit includes a cutting s... |
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Invention
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Drill bit for horizontal directional drilling. A bit body for a drill bit for horizontal directio... |
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2014
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Invention
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Methods to repair worn or eroded pdc cutters, cutters so repaired, and use of repaired pdc cutter... |
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Invention
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Double wall flow tube for percussion tool. An apparatus, system, and method of fabricating a perc... |
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Invention
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Top mounted choke for percussion tool. A system and method of fabricating a percussion tool that ... |
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Invention
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Coating of the piston for a rotating percussion system in downhole drilling. A system and method ... |
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Invention
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Assess cutter terminal damage using capacitance spectroscopy. A method and apparatus for non-dest... |
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Invention
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Shear claw bit. A shear claw drill bit includes a bit body and a plurality of pick receptacles fi... |
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Invention
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Shear claw bit.
A shear claw drill bit includes a bit body and a plurality of pick receptacles f... |
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Invention
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Roller cutter drill bit with mixed bearing types. A roller cutter drill bit with mixed bearing ty... |
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Invention
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Roller cutter drill bit with mixed bearing types.
A roller cutter drill bit with mixed bearing t... |
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Invention
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Composite diaphragm for roller cone pressure compensation system.
To address issues of durabilit... |
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Invention
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Hybrid rotary cone drill bit. A hybrid rotary cone drill bit includes a plurality of legs. A bear... |
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Invention
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Methodologies for manufacturing short matrix bits. A downhole tool and method for manufacturing s... |
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Invention
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Methodologies for manufacturing short matrix bits.
A downhole tool and method for manufacturing ... |
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Invention
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Wear resistant plates on a leading transitional surface of the leg for a rotary cone drill bit. I... |
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Invention
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Wear resistant plates on a leading transitional surface of the leg for a rotary cone drill bit. A... |
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Invention
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Frac plug mill bit.
A fixed cutter bit for milling a frac plug includes a body and a face. The f... |
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Invention
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Acoustic emission toughness testing for pdc, pcbn, or other hard or superhard material inserts. A... |
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2013
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Invention
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Rock bit having a pressure balanced metal faced seal. A sealing system includes a first gland in ... |
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Invention
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Rock bit having a flexible metal faced seal. A sealing system includes a first gland in a cone an... |
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Invention
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Method of determining wear abrasion resistance of polycrystalline diamond compact (pdc) cutters. ... |
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Invention
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Impregnated rotary bit with high density monoblock center structure. A drill bit includes a bit b... |
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2007
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P/S
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Earth boring equipment, namely, drill bits and earth boring tools for mining, construction and oi... |
