135348 ⎘
Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables; Apparatus for feeding the rods or cables ; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods with a fluid-actuated cylinder
CORE SAMPLE HANDLING DEVICE
#2Multi-Tool Boring Systems and Methods of Operating Such Systems
#3JACK LEG SELECTION MANIFOLD
#4Portable Downforce System and Method
#5DRILLING MACHINE WITH SMALL VOLUME AND HIGH SPEED FOR DUST-FREE MECHANICAL DRILLING
#6Portable Downforce System and Method
#7Multi-Tool Boring Systems and Methods of Operating Such Systems
#8Portable downforce system and method
#9DUAL SPEED LINEAR ACTUATOR ASSEMBLY
#10TUBULAR COMPENSATION SYSTEM
#11Multi-tool boring systems and methods of operating such systems
#12A CORE SAMPLE HANDLING DEVICE
#13Vibratory grouting drilling rig with auxiliary moving mechanism
#14Rope tensioning system for drilling rig
#15Drill feed system
#16Rod jack apparatus
#17Drive and a method for operating a drive of a ground drilling device
#18Controllable drilling head
#19DEVICE FOR GENERATING AN AXIAL LOAD IN A DRILL STRING ASSEMBLY
#20Moon-based in-situ condition-preserved coring multi-stage large-depth drilling system and method therefor
#21Wellhead lubricator and methods of operating same
#22Automated pipe tripping apparatus and methods
#23Ball transfer mechanism with polycrystalline diamond bearing support
#24Hydraulic workover unit for live well workover
#25Systems and methods for underground pipe installation and soil clearing
#26Inverted direct drive feed system
#27Pump jack with counterbalance
#28Modular boost system for a jack
#29Integrated Snubbing Operating Platform
#30Drill pipe, and system and method for laying a pipeline
#31Control system for drilling machines
#32Tubular compensation method
#33Drill assembly and valve
#34Systems and methods for underground pipe installation and soil clearing
#35Snubbing jack capable of reacting torque loads
#36Rotating control device head installer and remover
#37Systems and methods for underground pipe installation and soil clearing
#38System and method for monitoring cable life
#39Automated pipe tripping apparatus and methods
#40Hydraulic multi-displacement hoisting cylinder system
#41Hoisting system
#42Guided Telescoping System For A Snubbing or Drilling Assembly
#43DRILL PIPE, AND SYSTEM AND METHOD FOR LAYING A PIPELINE
#44Multi-mode hydraulic cylinder control system for hydraulic workover unit
#45Hoisting system
#46Slip style rod spinner for pipe bursting machine
#47Duplex snubbing jack
#48Slip Style Rod Spinner For Pipe Bursting Machine
#49EXTENDABLE CYCLINDER, DRILL HEAD AND METHOD
#50METHOD AND APPARATUS FOR STABBING OF PIPE AND OTHER TUBULAR GOODS
#51Self-supporting pneumatic hammer positioner with universal joint
#52Drilling tubular weight compensating system
#53Powered slip actuation
#54Hydraulic multi-displacement hoisting cylinder system
#55Self-aligning apparatus
#56Automated pipe tripping apparatus and methods
#57Cylinder assembly for snubbing and drilling applications
#58Guide apparatus for tubular members in a snubbing unit
#59Deadline compensator
#60Drive of an earth drilling device, earth drilling device, and a method for driving an earth drilling device
#61Horseshoe jack for drilling, work-overs and completions
#62Hydraulic draw works
#63Method and apparatus for stabbing of pipe and other tubular goods
#64Multi-ram drill rig and method of operation
#65Slip style rod spinner for pipe bursting machine
#66Drill rig
#67Rock bolting system, method of installing rock bolts, and flexible bolt centralizer
#68Push / pull system and support structure for snubbing unit or the like on a rig floor
#69Rock drill machine with feed leg
#70Force application reduction employing actuator and thrust bearing
#71Push / pull system and support structure for snubbing unit or the like on a rig floor
#72Drilling machine and method
#73Automated pipe tripping apparatus and methods
#74Method and apparatus for aligning a BOP stack and a mast
#75Transportable single operator rig apparatus and method for optimizing drilling and/or completion
#76Pipe clamp mechanism and method
#77Rig carrier interconnection support and method
#78Brace support mast assembly for a transportable rig
#79Method for operating a horizontal drilling device and horizontal drilling device
#80WEIGHT CONTROLLED SLIP INTERLOCK SYSTEMS AND METHODS
#81Method and apparatus to perform subsea or surface jacking
#82Drum unit for a well intervention string
#83Wellbore tubular handling system
#84Drilling rig
#85Method and apparatus for forcing a pipeline into or out of a borehole
#86Managing tensile forces in a cable
#87Drill rig and associated drill rig traverse system
#88Multi-ram drill rig and method of operation
#89Method and apparatus for cutting and removing pipe from a well
#90Regenerative drive mechanism for hydraulic feed cylinders in hydrostatic or hydraulic circuits
#91DRILLING MACHINE AND METHOD
#92System for handling equipments for the drilling of the ground
#93Hydraulic interlock system between casing gripper and spider
#94Work string controller
#95Work string controller
#96Work string controller
#97Pipe connection system
#98Push / pull system and support structure for snubbing unit on a rig floor
#99Arrangement for employing drill steel centralizer travelling on feed beam of rock drill machine
#100Drilling rig
#101Work string controller
#102Stand compensator
#103Method and device for reconstructing old underground pipes
#104System and method for tightening string sections to form a string
#105Pilot tube system and attachment mechanism for auger boring machine
#106Drill slide for rock drilling apparatus
#107Drilling or Service Rig
#108Rock Drilling Device and Rock Drilling Rig Incorporating A Pressure Cylinder For Feeding The Drilling Machine
#109Ground working implement
#110Drilling rig
#111Controlled shared load casing jack system and method of using
#112Rod pushing and pulling machine
#113Telescopic feed beam for rock drill
#114Stand compensator
#115Method of manufacturing an insulated pipeline
#116Pipe running tool
#117Well system
#118Three dimensional steering system and method for steering bit to drill borehole
#119Portable drilling apparatus