| Patents for E21B 7 - Special methods or apparatus for drilling (22,064) |
|---|
| 03/30/2005 | CN2688863Y Drilling scraper |
| 03/30/2005 | CN2688862Y Steering hydraulic apparatus of triaxial wheeled pigging apparatus |
| 03/30/2005 | CN1602385A Boring head and a roller cutter and a saddle for a boring head for rotary drilling |
| 03/30/2005 | CN1601055A Caterpillar chain stepped type drilling machine |
| 03/30/2005 | CN1601047A Drilling robot for installing pipe |
| 03/30/2005 | CN1601044A Drilling tool of the displacing type in soil and method |
| 03/29/2005 | US6871712 Remote control for a drilling machine |
| 03/29/2005 | US6871710 Rotational float for rotating equipment |
| 03/29/2005 | CA2356576C An improved coring bit motor and method for obtaining a material core sample |
| 03/24/2005 | WO2005008018A3 Method for heat drilling holes in ice and device for carrying out said method |
| 03/24/2005 | WO2004101944A3 Method of and system for directional drilling |
| 03/24/2005 | WO2004070159A3 Apparatus and methods for drilling a wellbore using casing |
| 03/24/2005 | WO2004048744A3 Apparatus and method for drilling and reaming a borehole |
| 03/24/2005 | US20050062665 Antenna system |
| 03/24/2005 | US20050061549 System and method for forming an underground bore |
| 03/24/2005 | US20050061547 Obstacle detection system for underground operations |
| 03/24/2005 | DE10133614B4 Druckringadaptersystem Pressure ring adapter system |
| 03/23/2005 | EP1228290A4 Drilling formation tester, apparatus and methods of testing and monitoring status of tester |
| 03/23/2005 | EP0840834B1 Apparatus and process for drilling and completing multiple wells |
| 03/23/2005 | CN1599995A Burst QAM downhole telemetry system |
| 03/23/2005 | CN1599836A Method for controlling a drilling sequence, a rock drilling apparatus and a computer programme to form a drilling sequence |
| 03/23/2005 | CN1599832A Earth drilling device |
| 03/22/2005 | US6869147 Method and system for mining hydrocarbon-containing materials |
| 03/22/2005 | US6868921 Boring tool tracking fundamentally based on drill string length, pitch and roll |
| 03/22/2005 | US6868909 Drillable junction joint and method of use |
| 03/22/2005 | US6868906 Closed-loop conveyance systems for well servicing |
| 03/17/2005 | WO2005024178A1 Device and method of lining a wellbore |
| 03/17/2005 | WO2004079147A9 Method and apparatus for drilling with casing |
| 03/17/2005 | US20050056463 Steerable bit assembly and methods |
| 03/17/2005 | US20050056460 Using a rotating inner member to drive a tool in a hollow outer member |
| 03/17/2005 | US20050056434 Collapsible expansion cone |
| 03/17/2005 | US20050056433 Mono diameter wellbore casing |
| 03/16/2005 | EP1514996A1 Drilling system with remote directional control |
| 03/16/2005 | EP1514995A1 Drilling rig with rotating head |
| 03/16/2005 | EP1513986A1 A device producing hammering |
| 03/16/2005 | EP1226336A4 Drilling formation tester, apparatus and methods of testing and monitoring status of tester |
| 03/16/2005 | CN2685529Y Hydraulic pulse drill bit vibrating short section |
| 03/16/2005 | CN2685528Y Underground high pressure hydraulic pulse generator |
| 03/16/2005 | CN2685527Y Leaf valve hydraulic pulse drill bit short section |
| 03/15/2005 | US6866106 Fluid drilling system with flexible drill string and retro jets |
| 03/10/2005 | WO2005021920A2 Downhole tubular splitter assembly and method |
| 03/10/2005 | WO2004097160A3 System and method using a continuously variable transmission to control one or more system components |
| 03/10/2005 | US20050051364 Feed table pivot pin constraining device |
| 03/10/2005 | US20050051363 Treatment fluids comprising starch and ceramic particulate bridging agents and methods of using these fluids to provide fluid loss control |
| 03/09/2005 | EP1512831A1 Feed table pivot pin constraining device |
| 03/09/2005 | CN2683822Y Super-high pressure double flow passage PDC drill head |
| 03/09/2005 | CN2683821Y Multifunctional non-excavation level directional drilling machine |
| 03/09/2005 | CN2683820Y Well servicing unit |
| 03/08/2005 | US6864801 Reservoir monitoring through windowed casing joint |
| 03/08/2005 | US6863137 Well system |
| 03/08/2005 | US6863136 Smart-ultrasonic/sonic driller/corer |
| 03/08/2005 | US6863129 Method and apparatus for providing plural flow paths at a lateral junction |
| 03/03/2005 | WO2004099550A3 Drilling aparatus |
| 03/03/2005 | WO2004094734A3 Drill bit |
| 03/03/2005 | WO2004053284A3 Isolated electrical connection in a drill string |
| 03/03/2005 | US20050045341 Radial expansion of tubular members |
| 03/03/2005 | US20050045340 Method of forming a bore |
| 03/03/2005 | US20050045324 Radial expansion of tubular members |
| 03/02/2005 | EP1040250B1 System and method for positioning a tool in a wellbore |
| 03/02/2005 | CN2682188Y Vehicle carried well repairing machine |
| 03/02/2005 | CN2682187Y Hydraulic anchor rod anchor cable drilling machine and special integrated control valve thereof |
| 03/01/2005 | US6861137 High volume density polycrystalline diamond with working surfaces depleted of catalyzing material |
| 03/01/2005 | US6861098 Polycrystalline diamond partially depleted of catalyzing material |
| 03/01/2005 | US6860337 Integrated mast and top drive for drilling rig |
| 03/01/2005 | CA2468602A1 A method of forming a bore |
| 02/24/2005 | WO2004083590A3 Method and apparatus for drilling a borehole with a borehole liner |
| 02/24/2005 | US20050042036 Device and method for trenchless replacement of underground pipe |
| 02/24/2005 | US20050039928 Radial expansion of tubular members |
| 02/23/2005 | EP1508665A1 Earth working apparatus for drilling and planting |
| 02/23/2005 | EP1507952A2 Underwater drilling rig |
| 02/23/2005 | EP1169540B1 Arrangement in rock drilling apparatus |
| 02/23/2005 | CN1584292A Crawler-type walking rockbolt drilling carriages |
| 02/23/2005 | CN1584222A Pile core constructing method |
| 02/22/2005 | US6857487 Drilling with concentric strings of casing |
| 02/22/2005 | US6857486 High power umbilicals for subterranean electric drilling machines and remotely operated vehicles |
| 02/17/2005 | WO2005014967A1 Pipe burster with spherical bursting member |
| 02/17/2005 | US20050036338 Waveform independent high frequency power system |
| 02/17/2005 | US20050034901 Fluid drilling head |
| 02/17/2005 | US20050034897 Reamer apparatus for ground boring machine |
| 02/17/2005 | US20050034896 Pipe burying method |
| 02/17/2005 | US20050034895 Smart clutch |
| 02/16/2005 | CN2679339Y Composite positioning and orienting tool for external slope of drilling well |
| 02/16/2005 | CN2679338Y Combined reentering tool for well slope |
| 02/16/2005 | CN2679337Y Crawler monotube jetitng hydraulic jumbolter |
| 02/16/2005 | CN1580481A Jet-flow perforating device |
| 02/15/2005 | US6856135 Boring tool tracking/guiding system and method with unconstrained target location geometry |
| 02/15/2005 | US6854537 Portable placer exploration and sampling apparatus |
| 02/15/2005 | US6854533 Apparatus and method for drilling with casing |
| 02/15/2005 | US6854532 Subsea wellbore drilling system for reducing bottom hole pressure |
| 02/15/2005 | CA2294552C Downhole window milling apparatus and method for using the same |
| 02/15/2005 | CA2277714C Steerable rotary drilling device and directional drilling method |
| 02/15/2005 | CA2223669C Retrievable milling guide anchor apparatus and associated methods |
| 02/10/2005 | WO2005012688A1 Method and system for accessing subterranean deposits from the surface and tools therefor |
| 02/10/2005 | US20050029796 Carrier vehicle for drilling or rockbolting machine |
| 02/10/2005 | US20050029717 Igniter for oxygen lance for thermal cutting, drilling etc. |
| 02/10/2005 | US20050029017 Well string assembly |
| 02/10/2005 | US20050029016 Coupling for dual member pipe |
| 02/10/2005 | US20050028988 Radial expansion of tubular members |
| 02/10/2005 | DE10115233B4 Horizontalbohranlage Horizontal drilling rig |
| 02/09/2005 | EP1505251A2 Drilling method |