Matches 1 - 33 out of 33


Match Document Document Title
US20120067650 MODULAR SYSTEM OF MUTLI-PURPOSE RODS FOR DRILLING SOIL  
A modular system of multipurpose rods for drilling soil is constituted by rods (1) crossed by an internal passage (2) for the passage of concrete, of substantially cylindrical shape, that...
US20060278440 Downhole stabilizer  
A stabilizer comprised of a tubular body which has an exterior surface with selectively positioned indentations. A sleeve is positioned over the tubular body. The sleeve has an interior surface in...
US20110272196 DRILLING STABILIZER  
A downhole, hydraulically actuated drilling stabilizer that provides versatility in a bottom-hole assembly. The drilling stabilizer can be used in a directional drilling application to help...
US20100300761 APPARATUS AND METHODS TO OPTIMIZE FLUID FLOW AND PERFORMANCE OF DOWNHOLE DRILLING EQUIPMENT  
Sleeves, stabilizers and other well tools may be formed with fluid flow paths or channels extending through one or more blades disposed on the exterior portions of such well tools. The blades and...
US20120097451 ELECTRICAL CONTROLLER FOR ANTI-STALL TOOLS FOR DOWNHOLE DRILLING ASSEMBLIES  
An anti-stall tool in an oil well drilling assembly that controls reciprocation of the drill bit by an electrical controller that alters weight-on-bit (WOB) depending upon measured downhole...
US20130264123 METHODS OF MANUFACTURING STEEL TUBES FOR DRILLING RODS WITH IMPROVED MECHANICAL PROPERTIES, AND RODS MADE BY THE SAME  
Embodiments of the present disclosure are directed to methods of manufacturing steel tubes that can be used for mining exploration, and rods made by the same. Embodiments of the methods include a...
US20080000698 Drilling stabilizer  
A stabilizer used to centralize drill pipe in the drilling of wells, such as oil and gas wells, having a replaceable member with a contoured outer surface and specifically designed flow paths.
US20100018772 ARTICULATED EXTRACTION PIPE  
The invention concerns a bore screen comprising a plurality of perforated rigid tubular modules (1) impermeably connected in series by ball joint means (2), allowing an extracted fluid to flow...
US20120292033 Vortex Controlled Variable Flow Resistance Device and Related Tools and Methods  
A vortex-controlled variable flow resistance device ideal for use in a backpressure tool for advancing drill string in extended reach downhole operations. The characteristics of the pressure waves...
US20140345950 DRILLER RETAINING DEVICE ABLE TO BE POSITIONED WITH WELL HORIZONTALITY AND VERTICALITY  
A driller retaining device able to be positioned with well horizontality and verticality includes a hollow outer sleeve having two end, one is a working end and the other being an assembly end; an...
US20080115974 Steerable drilling system  
A steerable drilling system comprises a rotary drill bit 14 secured to a housing 16, a secondary rotary drill component 22 carried by the housing and rotatable therewith, the second rotary drill...
US20110005836 STABILIZER SUBS FOR USE WITH EXPANDABLE REAMER APPARATUS,EXPANDABLE REAMER APPARATUS INCLUDING STABILIZER SUBS AND RELATED METHODS  
An expandable reamer apparatus and stabilizer sub having at least one rib thereon attached thereto for drilling a subterranean formation.
US20110240370 DRILLING MOTOR WITH A LOCKING COLLET SLEEVE STABILIZER  
A threaded sleeve stabilizer spans an upper stator connection in a mud driven drilling motor used for borehole drilling. A number of collets are loaded in compression between the stator and the...
US20100044113 CONNECTION FOR WELL BORE DRILLING TOOLS  
A drilling tool connection includes a male pin, a female box connector, and a locking pin. The male pin includes a hexagonal outer perimeter, at least a portion of the pin having a cylindrical...
US20080135304 Methods of attaching a shank to a body of an earth-boring drilling tool, and tools formed by such methods  
Earth-boring rotary drill bits including a bit body attached to a shank. In some embodiments, the bit body and the shank may have abutting surfaces concentric to an interface axis offset relative...
US20090152011 Downhole Drive Shaft Connection  
In one aspect of the present invention, a section of a drill string has a drill bit with a body intermediate a shank and a working face, the working face having at least one cutting element. A...
US20120298355 Logging While Pulling  
The disclosure includes a system, method, and tool for logging while pulling. The disclosed system includes a tool and a bottom hole assembly, and the tool engages with the bottom hole assembly....
US20100065264 Rotor underreamer, section mill, casing cutter, casing scraper and drill string centralizer  
A down hole well bore apparatus to underream and remove rock or cement or other material, cut or mill casing, clean or scrape casing, or centralize a drill string, which has a rotor which actuates...
US20120199400 DRILL PIPE AND CORRESPONDING DRILL FITTING  
A drillpipe for a drill stem to drill a hole. The drill stem includes a drill string and a bottom hole assembly. The drillpipe includes a first end having a first inertia, a second end having a...
US20100122851 Ultra-hard drilling stabilizer  
A drilling stabilizer having a body and a plurality of blades integrally cast from tungsten carbide particles bound together with a heated metal binder, for use in drilling oil and gas wells, has...
US20090283331 MATERIAL FOR PRODUCING PARTS OR COATINGS ADAPTED FOR HIGH WEAR AND FRICTION-INTENSIVE APPLICATIONS, METHOD FOR PRODUCING SUCH A MATERIAL AND A TORQUE-REDUCTION DEVICE FOR USE IN A DRILL STRING MADE FROM THE MATERIAL  
The present invention relates to a material for producing parts or coatings adapted for highly wear and friction intensive applications, said material comprising preformed hard material particles...
US20140090892 Apparatus and methods for controlling drill string vibrations and applying a force to a drill bit  
Apparatus and methods for controlling drill string vibrations and applying a force to a drill bit include a body having a first piston at an uphole end in association with a drill string and a...
US20080217070 Method and apparatus for providing a continuous stroke auger boring machine  
An auger boring machine provides a continuous stroke drive assembly for driving a pilot tube to form an underground pilot hole used for guiding an auger in boring an underground pipe installation...
US20120018230 Flasked Pressure Housing  
A system for containing electronics positioned in a downhole tubular. In some embodiments, the system includes a pressure housing, a rigid end piece, a compliant end piece, an inner tubular...
US20120138368 BOTTOM PREVENTER FOR USE IN A DRILLING SYSTEM  
A conduit assembly for use in a drilling system that may include an upper section, an intermediate section and a lower section. The upper section may include a first seal. The first seal may...
US20110232969 DOWNHOLE TOOL DEACTIVATION AND RE-ACTIVATION  
A downhole tool including a tubular body having an upper connection and a lower connection and an axial borehole therethrough, wherein the upper and lower connections are configured to connect to...
US20120325561 Housing, Mandrel and Bearing Assembly for Downhole Drilling Motor  
A downhole housing, mandrel and bearing assembly 100 includes a flex shaft 20 adapted to connect to a downhole motor power output 309 and a tubular mandrel 30 adapted to connect to a drill bit...
US20100270081 Apparatus and Method for Lateral Well Drilling Utilizing a Nozzle Assembly with Gauge Ring and/or Centralizer  
An apparatus and method for cutting horizontally into an earthen formation including a nozzle assembly having a gauge ring mechanism and/or a centralizer mechanism that allows the nozzle assembly...
US20160369577 Bottom-Hole Feeding Mechanism  
A bottom-hole feeding mechanism comprising: a cylinder (1), a screw spindle (2) engaging with the cylinder (1) by means of a non-stopping splined screw pair (3), a first piston (6) received within...
US20160186504 DOWNHOLE APPARATUS AND METHOD  
There is provided a method of stabilising at least a portion of downhole toolstring, and associated apparatus. The method comprises stabilising the portion of downhole toolstring whilst an...
US20160160578 DOWNHOLE EXPANDABLE DRIVE REAMER APPARATUS  
A downhole expandable drive reamer apparatus is described. The apparatus comprises a body defining a longitudinal axis X-X. At least one roller is disposed on the body and is moveable relative to...
US20160060975 DOWNHOLE DRILLING DEVICE  
A downhole drilling device (1) may include a drill bit rotatable via a drill string (11); a guiding device (4) provided between said drill bit and said drill string (11), said guiding device (4)...
US20160060972 DRILL PIPE WITH ROLLER ASSEMBLY  
A drill pipe assembly includes a tubular body and a roller assembly for reducing friction between the drill pipe and the inner wall of a wellbore. The tubular body includes a substantially...

Matches 1 - 33 out of 33