| Patents for E21B 7 - Special methods or apparatus for drilling (22,064) |
|---|
| 05/09/2013 | US20130112483 Oil Operated Rotary Steerable System |
| 05/09/2013 | US20130112482 Apparatus and Process For Drilling A Borehole In A Subterranean Formation |
| 05/09/2013 | US20130112481 Drill members for mine roofs |
| 05/09/2013 | US20130112480 Borehole drill bit cutter indexing |
| 05/09/2013 | US20130112478 Device for laser drilling |
| 05/09/2013 | US20130112402 Method for Forming a Geothermal Well |
| 05/09/2013 | US20130112401 Downhole electrical energy conversion and generation |
| 05/08/2013 | EP2588715A1 "system and method for directional drilling" |
| 05/08/2013 | EP2588703A1 Remotely operable underwater drilling system and drilling method |
| 05/08/2013 | EP2588702A1 Compliant deck tower |
| 05/08/2013 | EP2588701A1 Radial vibrational apparatus |
| 05/08/2013 | DE102011117866A1 Earth drilling apparatus has motor-gear unit, operating and holding unit, which is connected to motor-gear unit and auger, where motor-gear unit and auger are connected by torque-load limiting device |
| 05/08/2013 | CN202926308U Truck-mounted drilling rig operation control system |
| 05/08/2013 | CN202926213U Pipe conveyer for mining hydraulic working machine |
| 05/08/2013 | CN202926212U Flexible steel pipe remote controller for mining hydraulic working machine |
| 05/08/2013 | CN202926211U Mining hydraulic working machine |
| 05/08/2013 | CN202926210U High pressure water remote controller for mining hydraulic working machine |
| 05/08/2013 | CN202926209U Anchor rod locator |
| 05/08/2013 | CN202926208U Wedge-shaped cuthole guide device |
| 05/08/2013 | CN202926207U Device for increasing and improving pressing force and stability of rotary drilling rig |
| 05/08/2013 | CN202926206U Clamping groove type connection structure of travelling mechanism |
| 05/08/2013 | CN202926205U Tunnel construction multifunctional drilling machine electric control system |
| 05/08/2013 | CN103097644A T-frac system run in system |
| 05/08/2013 | CN103089186A Plug-in type expansion head |
| 05/08/2013 | CN103089151A Underwater drilling assembly and method for producing a borehole |
| 05/08/2013 | CN103089150A Crawler-type full hydraulic directional drilling machine for narrow roadway |
| 05/08/2013 | CN103089149A Well drilling method for improving lifting efficiency |
| 05/08/2013 | CN103089148A Control system special for down-the-hole drill carriage |
| 05/08/2013 | CN103089147A Double caterpillar track independent-running hydraulic system of driller |
| 05/08/2013 | CN103089144A Buffer power head for horizontal directional drilling machine |
| 05/08/2013 | CN102235151B Advanced hole-forming method of sand gravel boulder layer |
| 05/08/2013 | CN101910545B Method and apparatus for small-charge blasting |
| 05/08/2013 | CN101255792B Making directional measurements using a rotating and non-rotating drilling apparatus |
| 05/07/2013 | US8434568 Method and system for circulating fluid in a well system |
| 05/07/2013 | US8434567 Borehole drilling apparatus, systems, and methods |
| 05/07/2013 | US8434558 System and method for containing borehole fluid |
| 05/06/2013 | DE202012100346U1 Verbindungsstift zur Befestigung eines Druckausgleichsrings an einem Vortriebsrohr sowie dessen Verwendung und Anordnung Connection pin for attaching a pressure equalization ring to a jacking pipe and its use and disposition |
| 05/02/2013 | WO2013063338A2 Methods for optimizing and monitoring underground drilling |
| 05/02/2013 | WO2013062736A1 Method and apparatus for drilling multiple subsea wells from an offshore platform at a single site |
| 05/02/2013 | US20130105225 Horizontal drilling device |
| 05/02/2013 | US20130105224 Method and Apparatus For Sensing Elongated Subterranean Anomalies |
| 05/02/2013 | US20130105223 Resonance enhanced drilling: method and apparatus |
| 05/02/2013 | US20130105221 Methods For Optimizing And Monitoring Underground Drilling |
| 05/02/2013 | US20130105220 System and method for torque stabilization of a drilling system |
| 05/02/2013 | US20130105169 Rotating and reciprocating swivel apparatus and method |
| 05/02/2013 | CA2853118A1 Methods for optimizing and monitoring underground drilling |
| 05/01/2013 | CN202914424U Landing leg synchronous hydraulic system of tracked construction drilling rig |
| 05/01/2013 | CN202913952U Automatically reversing driving cab on rotary drilling rig |
| 05/01/2013 | CN202913951U Power head and rotary drilling rig with adjustable pulley yoke center distance |
| 05/01/2013 | CN202913950U Drilling machine with moving aid |
| 05/01/2013 | CN202913946U Screw drill |
| 05/01/2013 | CN202913941U Rotary drilling rig with circular tube extensible walking chassis |
| 05/01/2013 | CN103079769A Hydraulic impact mechanism for use in equipment for treating rock and concrete |
| 05/01/2013 | CN103075152A Drill loader |
| 05/01/2013 | CN103075104A Rotary drilling rig and working device thereof |
| 05/01/2013 | CN103075103A Self-walking shale gas drilling machine |
| 05/01/2013 | CN103075102A Multifunctional split-type caterpillar drilling machine for coal mine |
| 05/01/2013 | CN103075101A Mining multi-logical protection loop and multi-linkage functional drill hydraulic system |
| 05/01/2013 | CN103075100A Palm disk shaft mechanism for thousand-palm compound wagon drill |
| 05/01/2013 | CN103075099A Initial lining and ceiling drilling device for thousand-palm compound wagon drill |
| 05/01/2013 | CN103075098A Thousand-palm compound wagon drill |
| 05/01/2013 | CN103074892A Two-shaft, four-shaft and six-shaft interchanging type cement and soil stirring pile device and construction method thereof |
| 05/01/2013 | CN102226342B Multi-functional piling machine for jet grouting pile-sinking |
| 05/01/2013 | CN101824960B Full-hydraulic screw drilling machine |
| 04/30/2013 | US8430187 Directional sidetrack well drilling system |
| 04/30/2013 | US8430171 Method and arrangement for sealing a subsea oil wellhead |
| 04/30/2013 | US8430170 Bottom-to-surface connection installation of a rigid pipe with a flexible pipe having positive buoyancy |
| 04/30/2013 | US8430168 Apparatus and methods for subsea control system testing |
| 04/30/2013 | CA2734387C Method of cracking rock material, and breaking device |
| 04/30/2013 | CA2545765C Steerable drilling system |
| 04/30/2013 | CA2436085C Method and system for accessing a subterranean zone from a limited surface area |
| 04/25/2013 | WO2013059680A1 Riser sections and methods for making same |
| 04/25/2013 | WO2013056444A1 Method for monitoring drill rod of mechanical lock drilling rig and controller, monitoring system and drilling rig |
| 04/25/2013 | WO2013028310A3 Subterranean vibrator with lateral vibration feature |
| 04/25/2013 | WO2013003063A3 Milling assembly |
| 04/25/2013 | WO2012134705A3 Single trip liner setting and drilling assembly |
| 04/25/2013 | US20130098687 Wear and buckling resistant drill pipe |
| 04/25/2013 | US20130098685 Detecting and mitigating borehole diameter enlargement |
| 04/25/2013 | US20130098684 Percussion assisted rotary earth bit and method of operating the same |
| 04/25/2013 | US20130098627 Method and Apparatus for Drilling Multiple Subsea Wells From an Offshore Platform at a Single Site |
| 04/25/2013 | DE112011102466T5 Komponenten und Motoren für Bohrlochwerkzeuge und Verfahren zum Aufbringen eines Hartauftrags auf deren Oberflächen Components and motors for downhole tools and method for applying a hard job on the surfaces thereof |
| 04/25/2013 | CA2852946A1 Riser sections and methods for making same |
| 04/24/2013 | CN202900045U Jet borer |
| 04/24/2013 | CN202900044U Double stabilizer prebuckling dynamics pendulum drilling assembly |
| 04/24/2013 | CN202900043U Running device for all-casing full-circle-swinging drilling machine power station |
| 04/24/2013 | CN202900042U Jet boring machine |
| 04/24/2013 | CN202900041U Occupied drilling tool for single-barrel multi-well |
| 04/24/2013 | CN202900040U Novel sounding borer |
| 04/24/2013 | CN202899183U Engineering machinery rotary work arm |
| 04/24/2013 | CN202897869U Multifunctional telescopic crane |
| 04/24/2013 | CN103069096A Two pipe horizontal directional drilling system |
| 04/24/2013 | CN103062142A Pipe reeling device hydraulic system and piling machine |
| 04/24/2013 | CN103061798A Method for extracting coal bed methane through down-hole bedding long borehole consecutive cave building |
| 04/24/2013 | CN103061737A Anti-overturning control system and control method for rotary drilling rig |
| 04/24/2013 | CN103061735A Rotary drilling rig dynamic display control system and rotary drilling rig |
| 04/24/2013 | CN103061690A Waterproof pipe shoe V-shaped tooth device |
| 04/24/2013 | CN103061689A Waterproof pipe shoe wedge tooth device |
| 04/24/2013 | CN103061679A Piling machine |
| 04/24/2013 | CN103061675A Super-deep hole double-tube drilling directional drilling rig |
| 04/24/2013 | CN103061674A Underwell oil layer driller |