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US20110240367 |
Milling Tool for Establishing Openings in Wellbore Obstructions
A milling tool which includes a nose cutting portion, a cutting section having a plurality of hardened cutters and a shaft portion. A wear pad is disposed on the cutting section and shaft portion.... |
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US20090178852 |
Drilling Assembly, Drilling Reamer Arm Assembly, And Methods Of Drilling
This invention includes drilling assemblies, drilling reamer arm assemblies, and methods of drilling. In one implementation, a drilling assembly includes a cutting head apparatus configured to cut... |
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US20090166093 |
Reamer With Stabilizers For Use In A Wellbore
A reamer bit for use in earth boring operations comprising a body, cutter mounts having rolling cutters on the bit body, and stabilizers pads on the body placed between adjacent cutter mounts. The... |
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US20110024194 |
SYSTEM AND METHOD FOR ONE-TRIP HOLE ENLARGEMENT OPERATIONS
A drilling assembly for simultaneous hole enlargement operations comprises a drill bit, an adjustable diameter reamer, and a hole opener. The reamer is coupled with, and positioned uphole from the... |
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US20110079440 |
HOLE OPENER WITH HYBRID REAMING SECTION
A hole opener having a hybrid reaming section for reaming subterranean wellbores may include a tubular reamer body having a longitudinal axis and upper and lower ends, a rolling cutter mount... |
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US20120031671 |
Drill Bits With Rolling Cone Reamer Sections
A drill bit for drilling a borehole in earthen formations comprises a bit body having a central bit axis, a first end adapted to be connected to a drillstring, and a second end opposite the first... |
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US20140262536 |
DOWNHOLE CUTTING TOOLS HAVING HYBRID CUTTING STRUCTURES
A drill bit is disclosed, wherein the drill bit has a bit body with a longitudinal axis extending there through and a bit face. A plurality of blades extends from the bit body, wherein the... |