Patents
Patents for E21B 19 - Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables (17,198)
09/2010
09/14/2010CA2631573C Safety interlock for control lines
09/14/2010CA2484053C Tong assembly
09/14/2010CA2453034C Liner hanger
09/10/2010WO2010102243A1 Compact snubbing unit
09/10/2010WO2010102077A2 System and method of using a saver sub in a drilling system
09/10/2010WO2009132428A8 Reduced weight power tong for turning pipe
09/10/2010WO2009112853A3 Gripping element for gripping a tubular in the construction and maintenance of oil and gas wells
09/09/2010US20100224416 System and method for connecting wired drill pipe
09/09/2010US20100224376 Method and apparatus for connecting tubulars using a top drive
09/09/2010US20100224373 Wellhead Conversion System and Method
09/09/2010US20100224357 Compact snubbing unit
09/08/2010EP2225433A1 Tubular control apparatus
09/08/2010CN201574705U Safe and convenient sucker rod wrench
09/08/2010CN201574704U Safe and convenient oil pipe tongs
09/08/2010CN201574703U Semi-adjustable safe and convenient tubing tongs
09/08/2010CN201574702U Oil pipe transporting small tackle with automatic charging function
09/08/2010CN201574701U Rotary hydraulic slip and rotary bidirectional hydraulic slip using same
09/08/2010CN201574700U Double-lead-hammer hanging rope of oil pumping unit
09/08/2010CN201574699U Sliding mechanism
09/08/2010CN201574061U Petroleum drilling machine hydraulic disc type brake device
09/08/2010CN101824972A Mechanism for connecting and disconnecting drill rod and casing
09/07/2010US7789157 System and method for controlling liquid removal operations in a gas-producing well
09/07/2010US7789155 Coiled tubing well intervention system and method
09/07/2010US7789132 Stripper rubber retracting connection system
09/02/2010WO2010099347A2 Pipe handling system
09/02/2010WO2010098672A1 Method for withdrawal and insertion of a drill pipe string in a borehole and also a device for use when practising the method
09/02/2010WO2009029879A3 Grapple attachment for use with drill pipes
09/02/2010US20100218998 Upper Beam for a Telescopic Feeder, Telescopic Feeder and drilling device for rock drilling
09/02/2010US20100218936 Seal configuration for top drive swivel apparatus and method
09/02/2010US20100218935 Pipe Handling apparatus
09/02/2010US20100218934 Method and device for positioning a power tong at a pipe joint
09/02/2010CA2753744A1 Method for withdrawal and insertion of a drill pipe string in a borehole and also a device for use when practising the method
09/02/2010CA2753573A1 Pipe handling system
09/01/2010EP2222934A1 Elevator for gripping and lifting a riser joint
09/01/2010EP2126270B1 A top drive apparatus
09/01/2010CN201568041U Synchronous control system of injection head and winding drum of continuous string coiled tubing unit
09/01/2010CN201567998U Drainage gas production well head sealed suspending device
09/01/2010CN201567995U Positive inverted back-off device assembly
09/01/2010CN201567981U Adjustable polished rod centralizer
09/01/2010CN201567980U Dedicated adjustable rat hole for ocean-module drilling machine
09/01/2010CN201567979U Drilling-assisted pressurizing device for extraction of petroleum and CBM (coal bed methane)
09/01/2010CN201567978U Injection head of coiled tubing
09/01/2010CN201567977U Round clip for polished rod
09/01/2010CN201567973U Pumping unit driving wire cable centralizer
09/01/2010CN101818626A Back-up tong driving structure for power tongs
09/01/2010CN101818625A Automatic safety door protection device for open hydraulic power tongs
09/01/2010CN101818624A Automatic hydraulic safe protection loop for open hydraulic power tongs
09/01/2010CN101818623A Multifunctional electric well dredger
08/2010
08/31/2010US7784834 Clamp apparatus for threadedly connected tubulars
08/31/2010US7784546 Tension lift frame used as a jacking frame
08/31/2010US7784535 Top drive systems with reverse bend bails
08/31/2010CA2579647C Control systems and methods for active controlled bottomhole pressure systems
08/31/2010CA2462071C Multi-purpose coiled tubing handling system
08/26/2010US20100212916 Stabilizing structure for wellhead equipment
08/26/2010US20100212915 Pipe handling system
08/26/2010US20100212901 Downhole vibration apparatus and methods
08/26/2010US20100212881 Dual Mini Well Surface Control System
08/26/2010CA2658664A1 Stabilizing structure foe wellhead equipment
08/25/2010EP2220337A2 Logging tool deployment systems and methods with pressure compensation
08/25/2010EP2220335A2 Riser system comprising pressure control means
08/25/2010EP2220334A1 End stop apparatus and methods
08/25/2010CN201560730U Oil casing pipe coupler detaching equipment
08/25/2010CN201560729U Upright post exhaust boosting device for oil rig
08/25/2010CN201560728U Device capable of leading racking platform of oil rig to move freely
08/25/2010CN201560727U Anti-skidding slip of rotating control head
08/25/2010CN201560726U Counter pressurizing mechanism of hydraulic pressure balance workover rig
08/25/2010CN201560725U Rope stabilizer
08/25/2010CN101813105A Bidirectional sequence control valve special for tubing tong
08/25/2010CN101812978A Inclined wedge type clamp
08/25/2010CN101812977A Drilling platform pipe racking system and method
08/24/2010US7779931 Electric hand screwdriver with adjustable head
08/24/2010US7779922 Breakout device with support structure
08/24/2010US7779921 Wellhead completion assembly capable of versatile arrangements
08/24/2010US7779920 Controlling backflow pressure during retrieval of bottom hole assembly
08/24/2010US7779904 Guide rail plate for top drive of a drilling system
08/24/2010US7779903 Solid rubber packer for a rotating control device
08/24/2010US7779902 Arm for moving flexible lines at a wellsite
08/19/2010WO2010092237A1 Method for using retainer, and retainer
08/19/2010WO2010092236A1 Method for manipulating rodlike pieces, centralizer and rock drilling unit
08/19/2010US20100206586 Sampling system and method
08/19/2010US20100206584 Downhole tubular connector
08/19/2010US20100206583 Downhole tubular connector
08/19/2010US20100206562 Centralizing device for an elongated body in a mouse hole machine
08/19/2010DE19983531B4 Ummantelung zur Geräuschdämpfung bei einer Gesteinsbohrausrüstung Jacket for noise attenuation at a rock drilling
08/19/2010CA2748173A1 Method for manipulating rodlike pieces, centralizer and rock drilling unit
08/18/2010EP2217789A2 Tool storage assembly
08/18/2010CN201554415U Casing head device provided with SL-type slip
08/18/2010CN201554399U Double-riser high-pressure hose landing prevention device
08/18/2010CN201554398U Tubing string break-out device for dual-string thermal recovery wellhead
08/18/2010CN201554397U Disc drill stem bank
08/18/2010CN201554396U Device enabling racking platform of oilrig derrick to follow top floor of base
08/18/2010CN201554395U Forble board with function of fastening fourbles
08/18/2010CN201554394U Thribble board of lock tribble with lock device
08/18/2010CN201554393U Oceanic winch compensating system
08/18/2010CN201554392U Self locking type poliched rod eye device for wellhead lifting device of oil extractor
08/18/2010CN201554391U Vehicular petroleum drilling tool dismantling system
08/18/2010CN201554390U Operation controller for hydraulic dismounting machine of petroleum drilling tool
08/18/2010CN201554389U Fast-line sheave mechanism of drilling rig
08/18/2010CN201554382U Turning bar connecting device of drilling pile machine
08/18/2010CN201554364U Drilling equipment with double power heads
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