Matches 1 - 50 out of 143 1 2 3 >


Match Document Document Title
US20110220415 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...
US20110284291 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...
US20150027785 BOREHOLE CUTTER RETENTION AND FASTENING/LOCKING SYSTEM  
A borehole reaming cutter retention and fastening/locking system enable field replacement of borehole reaming cutter assemblies utilized in infrastructure emplacement horizontal drilling (HDD)...
US20080302574 DRILL STEM AND METHOD  
A drill stem segment and method of manufacture are shown. Drill stem segment and methods are shown that greatly strengthen the weld joint using sleeves. reinforced butt joints are shown in...
US20110100720 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...
US20140102807 Inductive Coupler  
Example inductive couplers are provided herein. The inductive couplers can provide for the transmission of power and/or communication between downhole tools in a bottom hole assembly.
US20130000983 DRILL ROD SHOCK TOOL  
Shock tools can include a rotary top drive box in threaded connection with an outer tube. A center plate tube can run through the center of the shock tool to provide a pathway for drilling fluid...
US20100059285 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...
US20060118340 Thread joint for a drill string for percussive rock-drilling  
The present invention relates to a screw joint for a drill run or drill string for percussion rock drilling, comprising male and female screw threads (5, 9) on the elements (1, 2) to be joined...
US20100001522 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...
US20110168443 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...
US20140338978 WELLBORE PERCUSSION ADAPTER AND TUBULAR CONNECTION  
A percussion adapter that is driven to generate a percussive axial motion on a wellbore structure. One percussion adapter includes a drive connection to mechanically convert rotational drive to...
US20130112481 DRILL MEMBERS FOR MINE ROOFS  
A drilling system for drilling vertical holes in a mine roof includes a chuck configured to be driven in rotation by a motorized drill head. The chuck is cylindrical has a bore having a first...
US20070102197 Drill stem for deep drillings  
The invention relates to a drill column (3) for deep wells, having a plurality of drilling pipes (10) having drilling pipe bodies (12) made from an electrically conductive material and a plurality...
US20050161259 Unsymmetrical profile threads for use in a positive displacement motor housing  
The present invention provides an unsymmetrical thread profile used to connect stator housings of a positive displacement motor. The unsymmetrical thread profile comprises one or more non-load...
US20070235224 Drill pipe with vibration dampening liner  
An instrumented drill pipe including an elastomeric tubular liner secured to the inner surface of a tubular member. The elastomeric liner has an interior surface configured to form a plurality of...
US20080210468 DRILL HEAD CONNECTION AND METHOD  
A drill head system and method of use is shown. Drill head systems shown provide for a secure drill head connection to a cylindrical portion or sonde housing, while still allowing for easy removal...
US20130220705 ASSEMBLED DRILLING TOOL  
An assembled drilling tool has a drilling bit (2) connected with a drilling stem (1) through a drilling bit joint (3). The drilling stem is connected by drilling stem sections (11). Each drilling...
US20130032411 COMPOSITIONS, METHODS OF COATING WELLBORE TOOLS WITH SUCH COMPOSITIONS, AND WELLBORE TOOLS COATED WITH SUCH COMPOSITIONS  
A composition including a high temperature thermoplastic polymer and a filler material is disclosed. A method for forming a coating upon a wellbore tool includes forming a powder composition...
US20140209394 SHALE DRILL PIPE  
A drill pipe for oil and gas drilling comprises two tool joints and a main portion between the tool joints, with two upsets adjacent to the tool joints, and a central section between the upsets....
US20140291032 PROCESS FOR THE PRODUCTION OF A PIPE LINED WITH AN INLINER  
A process for the production of a pipe comprising: an interior surface having a shape; and a thermoplastic inliner is provided. The process comprises: introducing the thermoplastic inliner into...
US20100089647 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.
US20090266615 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...
US20140158377 DRILLING ROD AND DRILLING METHOD  
A drill rod for reverse circulation drilling, the drill rod including a first outer tube having an first end adapted to receive a rotational force to transfer the rotational force to the first...
US20090173543 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...
US20140360788 NONMAGNETIC MATERIAL FOR PRODUCING PARTS OR COATINGS ADAPTED FOR HIGH WEAR AND CORROSION INTENSIVE APPLICATIONS, NONMAGNETIC DRILL STRING COMPONENT, AND METHOD FOR THE MANUFACTURE THEREOF  
In order to provide a nonmagnetic material for producing parts or coatings adapted for highly wear and corrosion intensive applications, said material comprising preformed particles made of...
US20090078461 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...
US20100230167 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...
US20090211815 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...
US20100044110 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...
US20140060838 Downhole Robotic Micro-Drilling System  
The invention relates to the completion and enhancement of oil and gas wells. The invention provides for a downhole tool which: enters vertical or horizontal wells located adjacent to the oil and...
US20080264694 Drill Rod  
According to the present invention, a drill rod (10) comprises an elongate hollow shaft (12) with a first shaft end and a second shaft end (22), the first shaft end having a first connector for...
US20070175663 Measuring device and drilling device for deep drillings  
In order to obtain information on the drilling site in the case of deep wells quickly and precisely, a measuring device (6) having an electrically operated measuring unit for measuring relevant...
US20140231148 COMPOSITE MATERIALS INCLUDING INORGANIC FULLERENE-LIKE PARTICLES AND INORGANIC TUBULAR-LIKE PARTICLES IN A POLYMER MATRIX  
A composite including a dispersed phase of an inorganic material of a metal chalcogenide composition with a fullerene-like or tubular-like geometry that is present in a polymeric matrix, wherein...
US20120305319 SAFETY JOINT WITH INDICATING FEATURE  
A joint assembly, including a first member including an indicator; a second member operatively arranged to sealingly engage the first member via a seal element, the indicator operatively arranged...
US20120067649 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...
US20110209920 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...
US20130126242 METHODS AND APPARATUS FOR DRILLING WELLS  
A well fluid additive having a heavier first bead and a lighter second bead, with the first bead having a specific gravity that exceeds the specific gravity of the second bead by at least 1 percent.
US20060000643 Top drive torsional baffle apparatus and method  
The present invention includes an apparatus and method including a torsional baffle to protect a top drive or rotary table assembly of a drilling rig from torsional vibrations caused from...
US20100326737 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...
US20100000797 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...
US20150129319 Externally Serviceable Slip Ring Apparatus  
A slip ring apparatus which includes a housing, a contact assembly recess defined by the housing, a slip ring rotor assembly contained within the interior of the housing adjacent to the contact...
US20110272139 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...
US20060254827 Flexible drill string member  
A drilling tool that has a flexible shaft so as to be able to make short radius curves while still being able to transmit torque and axial loads. The drilling tool includes a drill shaft for...
US20070269274 Rock Bolt  
A rock bolt (10) comprising first and second elongate members (11, 12) is disclosed. The first elongate member comprises a first end (13) adapted to penetrate rock, and a second end (14) adapted...
US20050115717 Improved Downhole Tool Liner  
A liner insertable into the central bore of a downhole tool includes a resilient material rolled into a substantially cylindrical shape. The outside diameter of the liner is variable to allow the...
US20150041221 UNCOUPLING DEVICE FOR CONNECTING A DRILLING TOOL TO THE END OF A DRILLING COLUMN AND A DRILLING SYSTEM COMPRISING SUCH AN UNCOUPLING DEVICE  
Collection device for connecting a drilling tool, such as a bit, to the end of a drilling column, in which the connection device comprises a first element, with a first end, intended to be...
US20090260892 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...
US20080245573 Thread Retention  
The invention relates to an earth boring device including a housing which has at least one portion with an inner thread, and a threaded element which has a corresponding outer thread, wherein the...
US20150041214 RETENTION DEVICE FOR DRILL PIPE TRANSMISSION LINE  
An apparatus for communicating a signal to or from a downhole tool includes a drill pipe configured to be rotated to drill a borehole, a tubular under axial tension and secured in the drill pipe,...

Matches 1 - 50 out of 143 1 2 3 >