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| Application No. | Application Title | Issue Date |
| 20120067649 | SLIP FREE DRILL PIPE A drill pipe includes a pin-type connector part, a box-type pipe connector part, a tube part attached to the pin-type pipe connector part, and an intermediary pipe part disposed between and attached to the box-type pipe connector part and the tube part. The intermediary... | 03/22/2012 |
| 20120043132 | Reamer Assembly An adapter for connecting drilling components having an elongate tubular member with a non-circular exterior surface profile and a connector. A ground engaging member generally characterized as a reamer has a non-circular inner surface profile whereby the ground engagin... | 02/23/2012 |
| 20120018229 | DRILL PIPE A drill pipe (10) having an elongate tubular body (12) with an interior surface enclosing a main bore (14) which extends generally parallel to a longitudinal axis (A) of the tubular body (12) from a first end to a second end of the tubular bo... | 01/26/2012 |
| 20110284291 | Tension/Collar/Reamer Assemblies And Methods The present invention provides drilling assembles and methods that are especially useful for a bottom hole drilling assembly for drilling/reaming/ or other operations related to drilling a borehole through an earth formation. In one embodiment, the drilling assembly uti... | 11/24/2011 |
| 20110272139 | SYSTEM FOR DRILLING A WELLBORE A system is provided for drilling a borehole into an earth formation, comprising a casing arranged in the borehole, a drill string extending through the interior of the casing to a lower end portion of the borehole, and a body of drilling fluid extending into the casing... | 11/10/2011 |
| 20110259645 | ROTARY STEERABLE TOOL A rotary steerable tool is provided for use with a drilling apparatus. The rotary steerable tool includes at least a first portion that includes an outer housing, a rotary shaft extending through the outer housing, a drive clutch coupled to the rotary shaft, and a senso... | 10/27/2011 |
| 20110220415 | ULTRA-LOW FRICTION COATINGS FOR DRILL STEM ASSEMBLIES Provided are drill stem assemblies with ultra-low friction coatings for subterraneous drilling operations. In one form, the coated drill stem assemblies for subterraneous rotary drilling operations include a body assembly with an exposed outer surface including a drill ... | 09/15/2011 |
| 20110209920 | INSERTION COUPLING FOR A BORING ROD ASSEMBLY AND A BORING ROD ASSEMBLY An insertion coupling for a boring rod assembly with at least two coupling elements is disclosed. The coupling elements include at least one corresponding tapered coupling face pair constructed to produce play-free clamping when pressing forces are applied to the insert... | 09/01/2011 |
| 20110198126 | DOWNHOLE DEVICE A downhole device comprising a mandrel (21) suitable for connection to a drilling assembly (3), a housing (22) surrounding said mandrel said housing being suitable for connection to the alternate end of a drilling assembly and a compensating mechani... | 08/18/2011 |
| 20110168443 | Bitless Drilling System Deep drillholes of 2 or more meters diameter down to 14-20 km and more, are with current technology extremely expensive and often not possible. Such wells are needed to run almost anywhere old nuclear/coal powerstations cheaply by geotherma... | 07/14/2011 |
| 20110155470 | DRILL STRING ELEMENT WITH INSTRUMENTS A drill string element including an elongate tubular body delimiting an interior surface longitudinally including at least one portion of revolution and including a first hole provided in the elongate tubular body. That first hole includes a first end opening at the por... | 06/30/2011 |
| 20110108328 | Ultra-hard drill collar A drill collar formed substantially entirely from a metal matrix material and one or more metal alloys is provided, the drill collar being produced through a molding process. The metal matrix material of the drill collar minimizes lateral movement and vibration during d... | 05/12/2011 |
| 20110100720 | Glass Forming Hardbanding Material A drill pipe and a method of applying hardbanding thereto. A hardbanding alloy comprising iron and manganese present in the range of 67 to 87 weight percent (wt. %), niobium and chromium present in the range of 9 to 29 wt. %, and boron, carbon and silicon present in the... | 05/05/2011 |
| 20100326737 | FLEXIBLE EXTRUSION RESISTANT RING FOR SEAL ASSEMBLY An extrusion resistant ring that is radially expandable and contactable to accommodate the relative movement of two joined bodies relative to each other. The extrusion resistant ring in combination with an elastomeric diaphragm provides a high pressure seal for down-hol... | 12/30/2010 |
| 20100258352 | System And Method For Drill String Vibration Control A drilling assembly includes a derrick, a swivel assembly coupled to the derrick, and a drill string coupled to the swivel assembly. The drill string includes a plurality of pipe sections, each having an insert providing a material and/or geometrical discontinuity in th... | 10/14/2010 |
| 20100252331 | METHODS FOR FORMING BORING SHOES FOR WELLBORE CASING, AND BORING SHOES AND INTERMEDIATE STRUCTURES FORMED BY SUCH METHODS Methods of attaching a crown of a boring shoe to a casing section include attaching an adaptable shank to a crown, and machining the adaptable shank to configure an end thereof for attachment to a casing section after attaching the adaptable shank to the crown. Addition... | 10/07/2010 |
| 20100236832 | PERCUSSIVE DRILL BIT PROVIDED WITH AN IMPROVED CHUCK ASSEMBLY A percussive drill bit provided with an improved chuck assembly for a down-the-hole drill hammer. The bit has a head at its forward end with a shank extending from the head. The shank is screw threaded along its length. A reciprocating chuck is provided as a sleeve with... | 09/23/2010 |
| 20100230171 | Drill Head for a Tunneling Apparatus The present disclosure relates to a tunneling apparatus including a drill head having a main body and a drive stem rotatably mounted within the main body. The main body defines a vacuum passage offset from the drive stem that extends through the main body from a proxima... | 09/16/2010 |
| 20100230167 | TENSION/COLLAR/REAMER ASSEMBLIES AND METHODS The present invention provides drilling assembles and methods that are especially useful for a bottom hole drilling assembly for drilling/reaming/or other operations related to drilling a borehole through an earth formation. In one embodiment, the drilling assembly util... | 09/16/2010 |
| 20100224416 | SYSTEM AND METHOD FOR CONNECTING WIRED DRILL PIPE A system and method for facilitating the formation of electrical connections between wired drill pipes is provided. Wired drill pipes comprise connection ends that each have a plurality of independent conductors. The independent conductors are arranged to enable a plura... | 09/09/2010 |
| 20100155067 | Systems and methods for using a passageway through subterranean strata Systems and methods usable to urge a passageway through subterranean strata, place protective lining conduit strings between the subterranean strata and the wall of said passageway without removing the urging apparatus from said passageway, and target deeper subterranea... | 06/24/2010 |
| 20100155144 | DRILLING TOOL FOR ROCK A drilling tool for rock is disclosed. The tool has a drill rod and a cup-shaped drill head, where the drill head and the drill rod can be connected detachably but rotationally secured with each other via a coupling mechanism which has at least one rotary lock-in slot o... | 06/24/2010 |
| 20100139978 | Deep water drilling with casing Methods and apparatus are provided to place a conductor pipe and a casing in a subsea environment. In one embodiment, a conductor pipe is jetted or drilled into the subsea floor. Thereafter, a casing drilling assembly comprising a drill casing and a drilling assembly is... | 06/10/2010 |
| 20100101865 | DEVICE FOR PROTECTING A GEOTECHNICAL OR GEOPHYSICAL PROBE A device (1) for protecting a geotechnical or geophysical probe (13) having an elongated shape and capable of undergoing radial deformation, includes: a plurality of flexible members (2) having an elongated shape and capable of undergoing radial def... | 04/29/2010 |
| 20100089647 | Drilling Method A drilling method comprises controlling operation of a drill string to maintain at least a portion of the drill string in forward whirl.... | 04/15/2010 |
| 20100059285 | TOP HAMMER ROCK-DRILLING TOOL, A DRILL ROD COUPLING SLEEVE In a first aspect, the invention relates to a rock-drilling tool that comprises a drill rod (1) having a male thread (5) as well as a coupling sleeve having a female thread for the co-operation with the male thread of the drill rod. The male thread (5 | 03/11/2010 |
| 20100044110 | Ultra-low friction coatings for drill stem assemblies Provided are drill stem assemblies with ultra-low friction coatings for subterraneous drilling operations. In one form, the coated drill stem assemblies for subterraneous rotary drilling operations include a body assembly with an exposed outer surface including a drill ... | 02/25/2010 |
| 20100044112 | DRILL STEM CONNECTION AND METHOD A drill stem connection system and method is shown that provides a secure hold on drill stem surfaces while unscrewing a threaded connection. Two lever arm components are adjustable to a number of possible orientations to allow for fitting the drill stem wrench in tight... | 02/25/2010 |
| 20100032214 | Composite Enhanced Metallic Drilling Riser System An offshore composite enhanced metallic drilling riser is equipped to enable preloading of the composite shell and the metallic riser. A riser has steel end connectors and a continuous metallic inner liner, encased in a composite shell. A segmented hyperboloid shaped pr... | 02/11/2010 |
| 20100000797 | DRILLING TOOL The invention relates to a drilling tool for drilling soft and fragmented rock. The drilling tool disclosed in the invention comprises a portion having a round cross section and a smooth surface and positioned substantially symmetrically relative to the middle axis of a... | 01/07/2010 |
| 20100001522 | ROCK-DRILLING TOOL, A DRILL ROD AND A COUPLING SLEEVE In a first aspect, the invention relates to a rock-drilling tool that comprises a drill rod (1;1″′) having a male thread (5;5′), and a coupling sleeve (7:7′) having a female thread (15:15′) for the co-operation with the male thread ... | 01/07/2010 |
| 20090321144 | PROTECTING AN ELEMENT FROM EXCESSIVE SURFACE WEAR BY LOCALIZED HARDENING A method of protecting an element from excessive surface wear is provided. In this method, a localized area of the element that will be subjected to excessive surface wear is exposed to induction heating for a period sufficient to heat the localized area to an elevated ... | 12/31/2009 |
| 20090277625 | Compositions For Reducing Or Preventing The Degradation Of Articles Used In A Subterranean Environment And Methods Of Use Thereof Described herein are compositions for reducing or preventing the degradation of equipment and articles exposed to hydrogen sulfide present in high concentrations in subterranean environments (e.g., oil and gas wells). The compositions are composed of a thermoplastic res... | 11/12/2009 |
| 20090266615 | BI-STEEL PERCUSSIVE DRILL ROD A drill rod includes a first end section, a mid-section, wherein the first end section and the mid-section are connected and wherein the first end section is manufactured using different steel than is used for the mid-section. Such a configuration can reduce the costs a... | 10/29/2009 |
| 20090260892 | DRILL ROD, DRILL BIT, AND DRILLING TOOL A drill rod having a fitting portion protruding toward the distal end and of the drill rod and extending along a first axial line, wherein the fitting portion includes: a parallel male thread portion in which a minimum distance from the first axial line in a cross-secti... | 10/22/2009 |
| 20090211815 | Dual Pipe for Increased Fluid Flow A dual pipe drill string system having increased fluid flow. The dual pipe system comprises a plurality of pipe sections, each pipe section having an inner rod and an outer pipe. The inner rod and the outer pipe of each pipe section may be coupled to the inner rod and o... | 08/27/2009 |
| 20090200012 | Downhole Debris Catcher and Associated Mill A debris catching device for downhole milling features modular debris receptacles that are held in the housing in a manner that facilitates stacking and a generally undulating flow path to facilitate dropping of the debris into the receptacles as the remaining fluid tra... | 08/13/2009 |
| 20090173543 | SLIM-HOLE PARASITE STRING A system for drilling a well having a wellbore includes a first pipe string positioned in the wellbore with a first annulus being present between the first pipe string and the wellbore. A second pipe string, smaller in diameter than the first pipe string, is positioned ... | 07/09/2009 |
| 20090152008 | MICROTUNNELLING SYSTEM AND APPARATUS A microtunnelling apparatus and system that includes an external drive system having rotational and linear thrust drive means, a drill head section having drill rotor and drill rod and connecting to intermediate drill rods allowing extension of the boring hole created b... | 06/18/2009 |
| 20090078461 | DRILLING SUBSURFACE WELLBORES WITH CUTTING STRUCTURES A system for forming a wellbore includes a drill tubular. A drill bit is coupled to the drill tubular. One or more cutting structures are coupled to the drill tubular above the drill bit. The cutting structures remove at least a portion of formation that extends into th... | 03/26/2009 |
