Featured patents

Method and Apparatus for Reaming Well Bore Surfaces Nearer the Center of Drift
US 08851205 B1, Oct. 7, 2014, Noncutting portion forwardly of cutting portion, Lot William Short, Jr. et al. / Hard Rock Solutions, LLC (Vernal, US)
An apparatus for use on a drill string for increasing the drift diameter…

Methods of Fabricating a Polycrystalline Diamond Compact
US 08813878 B1, Aug. 26, 2014, Diamond, Michael A. Vail et al. / US Synthetic Corporation (Orem, US)
A method of fabricating a polycrystalline diamond compact, comprising:…

Devices and Methods for Horizontal Directional Drilling With a Boring Tool Library
US 08807241 B2, Aug. 19, 2014, Automatic Control, Philip R. Lane / Vermeer Manufacturing Company (Pella, US)
A horizontal directional drilling (HDD) system, comprising:…

Core Lifter
US 08770320 B2, July 8, 2014, Core bit closure relative upwardly movable by core, Hongyan Zhang et al. / Longyear TM, Inc. (South Jordan, US)
A core lifter for use in a drilling system, the core lifter having a central…

Wellbore Instruments Using Magnetic Motion Converters
US 08720608 B2, May 13, 2014, Below-Ground (1) Hammer, or (2) Impact Members, Mike Williams et al. / Schlumberger Technology Corporation (Sugar Land, US)
A directional drilling apparatus, comprising:…

Cutting Element and a Method of Manufacturing a Cutting Element
US 08720612 B2, May 13, 2014, Insert, Daniel J Belnap et al. / Smith International, Inc. (Houston, US)
A cutting element comprising:…

Percussion Drilling Assembly Having a Floating Feed Tube
US 08651202 B2, Feb. 18, 2014, Fluid-operated, Lance Underwood et al. / Smith International, Inc. (Houston, US)
A percussion drilling assembly for boring into the earth comprising:…

Diamond Bonded Construction With Thermally Stable Region
US 08622154 B2, Jan. 7, 2014, Specific or diverse material, Feng Yu et al. / Smith International, Inc. (Houston, US)
An ultra-hard composite construction comprising:…

Stochastic Bit Noise
US 08550185 B2, Oct. 8, 2013, Boring curved or redirected bores, Ashley Bernard Johnson et al. / Schlumberger Technology Corporation (Sugar Land, US)
A method for biasing erratic motion of a bottomhole assembly of a drilling…

Consistent Drilling Fluids Engineering and Management
US 08522896 B2, Sept. 3, 2013, In response to drilling fluid circulation, Michael V. Rowden
A method that continuously changes a physical state and characteristics…

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