| 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) |
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| 02/24/2011 | US20110042097 Apparatus, assembly and process for injecting fluid into a subterranean well |
| 02/24/2011 | US20110042082 Methods and Apparatuses for Releasing a Chemical into a Well Bore Upon Command |
| 02/24/2011 | US20110042066 Device for injection and stimulation of fluids in a well bore |
| 02/24/2011 | US20110041656 Reduced weight power tong for turning pipe |
| 02/23/2011 | EP2287513A2 Method and device for moving a tool in soil |
| 02/23/2011 | EP2287437A1 Spinner apparatus |
| 02/23/2011 | EP2286057A2 Spring-loaded rod handling device |
| 02/23/2011 | CN201751529U Variable-torque hydraulic tongs for petroleum drilling |
| 02/23/2011 | CN201751528U Bushing stabilizing device |
| 02/23/2011 | CN101981269A Drilling unit, method for slot drilling and slotting device |
| 02/22/2011 | US7891426 Heat exchanger system and method of use thereof and well drilling equipment comprising same |
| 02/22/2011 | US7891418 Slippage sensor and method of operating an integrated power tong and back-up tong |
| 02/22/2011 | CA2517993C Method and apparatus for drilling with casing |
| 02/17/2011 | WO2011019958A2 System and method for a direct drive pump |
| 02/17/2011 | US20110036750 Composition comprising peroxygen and surfactant compounds and method of using the same |
| 02/17/2011 | US20110036596 Dual barrier plug system for a wellhead |
| 02/17/2011 | US20110036588 Systems and Methods for Running Casing Into Wells Drilled with Dual-Gradient Mud Systems |
| 02/17/2011 | US20110036587 Method and system for riserless casing seat optimization |
| 02/17/2011 | US20110036560 Long-lasting hydraulic seals for smart shuttles, for coiled tubing injectors, and for pipeline pigs |
| 02/17/2011 | US20110036559 System, method and apparatus for conducting earth borehole operations |
| 02/17/2011 | US20110036558 Spooling apparatus for well intervention system |
| 02/17/2011 | US20110036557 Electrical Isolation Connector For Electromagnetic Gap Sub |
| 02/17/2011 | CA2770853A1 System and method for a direct drive pump |
| 02/16/2011 | EP2284357A2 Apparatus for gripping a tubular on a drilling rig |
| 02/16/2011 | EP2284356A2 Apparatus for gripping a tubular on a drilling rig |
| 02/16/2011 | EP2284355A2 Apparatus for gripping a tubular on a drilling rig |
| 02/16/2011 | CN201747304U Jaw angle adjustable gripper |
| 02/16/2011 | CN201747303U Safe and automatic protection and locking system for hydraulic power tong |
| 02/16/2011 | CN201747302U Safe protection loop for opening hydraulic power tongs |
| 02/16/2011 | CN201747301U Open-mouth power tongs clamping mechanism |
| 02/16/2011 | CN201747300U Hydraulic control loop of power tongs |
| 02/16/2011 | CN201747299U Hydraulic cylinder-type hanging tongs balancing device |
| 02/16/2011 | CN201747298U Drilling machine propulsion mechanism connected with internal gear face of oscillating tooth of eccentric wheel tappet roller |
| 02/16/2011 | CN201747297U Propelling mechanism of logistic spiral mold surface connecting drill |
| 02/16/2011 | CN201747296U Pedal ring lock assembly |
| 02/16/2011 | CN201747295U Sling adjusting tensioner after replacing dual horse head pumping unit |
| 02/16/2011 | CN201747294U Beam hanger of oil pumping machine |
| 02/16/2011 | CN201747293U Fixture for wellhead fluid control line |
| 02/16/2011 | CN201747292U Drill rod fixing device and rotary drilling rig comprising thereof |
| 02/16/2011 | CN201747269U Chassis guardrail of workover rig |
| 02/16/2011 | CN101978131A Clamping head for an earth-drilling system |
| 02/16/2011 | CN101368474B Mechanical dragging type anti-propping slips |
| 02/16/2011 | CN101323421B Winch intelligent control rope guiding method and digital intelligent control rope guiding apparatus |
| 02/15/2011 | US7886846 Apparatus and system and method for down the hole carousel drilling |
| 02/15/2011 | US7886832 Modular connector and method |
| 02/15/2011 | US7886827 Apparatus for, and method of, landing items at a well location |
| 02/15/2011 | CA2464356C Apparatus and method for reducing required torque |
| 02/10/2011 | WO2011017610A1 Tubular joining apparatus |
| 02/10/2011 | WO2011017471A2 Pipe stand |
| 02/10/2011 | WO2011016818A1 Break-out assembly for a drilling machine |
| 02/10/2011 | WO2011016719A1 Tubular handling system and method for handling tubulars |
| 02/10/2011 | WO2011015856A1 Apparatus and method for use in handling a load |
| 02/10/2011 | US20110030974 Slip Hanger Assembly and Actuator |
| 02/10/2011 | US20110030970 Break-out assembly for a drilling machine |
| 02/10/2011 | US20110030942 Pipe stand |
| 02/10/2011 | US20110030512 Tubular Joining Apparatus |
| 02/10/2011 | DE102009035277A1 Bohrvorrichtung Drilling device |
| 02/10/2011 | CA2807464A1 Pipe stand |
| 02/09/2011 | EP2281997A2 Split tubular support device |
| 02/09/2011 | EP2281102A2 Wireline drilling system and method |
| 02/09/2011 | CN201738847U Detachable clamping block mechanism of injecting head of continuous oil pipe |
| 02/09/2011 | CN201738846U Connection mechanism |
| 02/09/2011 | CN201738845U Dynamic rathole device |
| 02/09/2011 | CN201738844U Multifunctional power tongs |
| 02/09/2011 | CN201738843U Anti-drawing steel suspension cable |
| 02/09/2011 | CN201738842U Rope suspender with load transmitter |
| 02/09/2011 | CN201738841U Borehole operation ground oil pipe tubing sliding device |
| 02/09/2011 | CN201738840U Steel continuous oil pumping rod operation vehicle |
| 02/09/2011 | CN201738818U Novel folding racking platform of telescopic derrick of petroleum drilling machine |
| 02/09/2011 | CN201738810U Full-hydraulic screw drilling machine |
| 02/09/2011 | CN101970792A Grapple attachment for use with drill pipes |
| 02/09/2011 | CN101970791A Sucker rod coupling extractor |
| 02/09/2011 | CN101967961A Hydraulic lifting device special for workover operation tubes and rods |
| 02/09/2011 | CN101333915B Fastener device for connecting and detaching bore rod |
| 02/09/2011 | CN101260789B Speed matching control device between continuous tube apparatus infusion head and drum |
| 02/08/2011 | US7883309 Method and apparatus for handling pipe |
| 02/08/2011 | US7882902 Top drive interlock |
| 02/03/2011 | WO2011014074A1 Portable pipe storage device |
| 02/03/2011 | WO2011011888A1 Apparatus and method for handling pipe |
| 02/03/2011 | WO2011011887A1 Pipe kicker/indexer for pipe handling systems |
| 02/03/2011 | US20110024135 Liner Expansion System with a Recoverable Shoe Assembly |
| 02/03/2011 | US20110024127 Assembly and method for production of gas or gas and condensate/oil |
| 02/03/2011 | US20110024108 Mineral Extraction System Having Multi-Barrier Lock Screw |
| 02/03/2011 | CA2768715A1 Apparatus and method for handling pipe |
| 02/03/2011 | CA2768713A1 Pipe kicker/indexer for pipe handling systems |
| 02/02/2011 | CN201730608U Comprehensive logging instrument for underground layered string inspection |
| 02/02/2011 | CN201730594U Valve type rope hanger |
| 02/02/2011 | CN201730566U Telescopic operating bench of two-layer bench of oil derrick |
| 02/02/2011 | CN201730565U Energy recycling device for petroleum drilling machine |
| 02/02/2011 | CN201730564U Double-torsion-spring convenient oil pipe elevator |
| 02/02/2011 | CN201730563U Double-circular drilling and drill-lifting device of long spiral piling drilling machine |
| 02/02/2011 | CN101963048A Split slip sleeve |
| 02/02/2011 | CN101963047A Rotary drilling rig and hoister thereof |
| 02/01/2011 | US7878735 Marine pipelay system and method |
| 02/01/2011 | US7878254 Systems, apparatus, and methods for autonomous tripping of well pipes |
| 02/01/2011 | CA2481921C Extended range emf antenna |
| 01/29/2011 | CA2674703A1 Method of servicing high temperature wells |
| 01/27/2011 | WO2011011574A2 Use of a spoolable compliant guide and coiled tubing to clean up a well |
| 01/27/2011 | WO2010118015A9 Control of concentric tubing direction |
| 01/27/2011 | US20110017474 Apparatus and methods for tubular makeup interlock |