| Patents for E21B 7 - Special methods or apparatus for drilling (22,064) |
|---|
| 04/18/2007 | CN1948701A Rotary excavating extruding expanding drilling machine and its working method |
| 04/18/2007 | CN1948700A Rotary excavating extruding expanding drilling machine and its working method |
| 04/18/2007 | CN1948699A Method of avoiding lateral resonance of drill |
| 04/18/2007 | CN1311141C Method for drilling a borehole and wet boring tool |
| 04/18/2007 | CN1311140C Driller capable of being quick mounted and dismounted and method for transferring same |
| 04/17/2007 | US7204327 Reverse circulation directional and horizontal drilling using concentric drill string |
| 04/17/2007 | US7204325 Spring mechanism for downhole steering tool blades |
| 04/17/2007 | US7204324 Rotating systems associated with drill pipe |
| 04/17/2007 | US7204323 Clean-Mole™ real-time control system and method for detection and removal of underground minerals, salts, inorganic and organic chemicals utilizing an underground boring machine |
| 04/17/2007 | US7204321 Concrete drill |
| 04/17/2007 | US7204307 Methods of using settable compositions comprising cement kiln dust |
| 04/12/2007 | WO2007039025A1 Drilling system and methods of drilling lateral boreholes |
| 04/12/2007 | WO2007038940A1 A boring head, a method and an apparatus for accomplishing a conveyance line boring operation |
| 04/12/2007 | WO2007038852A1 Method for drilling with a wellbore liner |
| 04/12/2007 | WO2006138651A3 System and method for acquiring information during underground drilling operations |
| 04/12/2007 | WO2006044763B1 Subsea junction plate assembly running tool and method of installation |
| 04/12/2007 | WO2004083595A3 Substantially neutrally buoyant and positively buoyant electrically heated flowlines for production of subsea hydrocarbons |
| 04/12/2007 | US20070079993 Fluid jet drilling tool |
| 04/12/2007 | US20070079989 Borehole generator |
| 04/12/2007 | US20070079988 Method and apparatus for transmitting sensor response data and power through a mud motor |
| 04/12/2007 | US20070079967 Method of reducing sand production from a wellbore |
| 04/12/2007 | CA2621636A1 Drilling system and methods of drilling lateral boreholes |
| 04/11/2007 | EP1485569B1 Method for retrofitting concrete structures |
| 04/11/2007 | CN1944941A Stepless speed regulating well repairing device |
| 04/11/2007 | CN1944939A Separable driving type sleeve screw drilling rig and its construction method |
| 04/11/2007 | CN1944938A Rod-pit drilling rod |
| 04/10/2007 | US7201238 Low friction face sealed reaction turbine rotors |
| 04/10/2007 | US7201229 Tree mounted well flow interface device |
| 04/10/2007 | CA2363811C Downhole drilling assembly with independent jet pump |
| 04/05/2007 | WO2007037704A1 Drill string suspension |
| 04/05/2007 | WO2004097158A3 Fast moving drilling rig |
| 04/05/2007 | US20070074908 Method and apparatus for supporting a downhole component in a downhole drilling tool |
| 04/05/2007 | US20070074868 Wear resistant tubular connection |
| 04/05/2007 | DE202007001858U1 Antriebsanordnung für ein Doppelbohrgestänge Drive assembly for a Doppelbohrgestänge |
| 04/05/2007 | DE102005046495A1 Drilling apparatus for creating cased borehole in rock or ground, has drilling elements arranged so that they can move in radial direction with respect to boring head |
| 04/05/2007 | CA2623012A1 Drill string suspension |
| 04/04/2007 | EP1769131A1 Drill head for a ground-boring device |
| 04/04/2007 | EP1399644B1 Method for preparing wellbore casing for installation |
| 04/04/2007 | EP1366267B1 Rock drilling rig provided with a sound dampening casing |
| 04/04/2007 | CN2886053Y Going-into-well resistance absorber for horizontal well casing |
| 04/04/2007 | CN2886052Y Hydraulic adjuster for rotary drilling machine |
| 04/03/2007 | US7198118 Communication adapter for use with a drilling component |
| 04/03/2007 | US7198115 Lead alignment attachment |
| 04/03/2007 | US7198100 Apparatus for expanding a tubular member |
| 04/03/2007 | CA2150735C Modulated bias unit for rotary drilling |
| 03/29/2007 | WO2007034462A1 A percussion hammer for enlarging drilled holes |
| 03/29/2007 | WO2007034136A2 Sub-surface deployment valve |
| 03/29/2007 | WO2006119022A3 Rotary steerable motor system for underground drilling |
| 03/29/2007 | WO2006033906B1 A subsea wellhead arrangement for hydraulically pumping a well |
| 03/29/2007 | US20070068706 Earth auger |
| 03/29/2007 | US20070068705 Apparatus and method to reduce fluid pressure in a wellbore |
| 03/29/2007 | US20070068704 Active buttonhole pressure control with liner drilling and completion systems |
| 03/29/2007 | US20070068703 Method for drilling and cementing a well |
| 03/29/2007 | CA2621053A1 Sub-surface deployment valve |
| 03/29/2007 | CA2621022A1 A percussion hammer for enlarging drilled holes |
| 03/28/2007 | EP1767741A2 Real-time control system and method for controlling an underground boring machine |
| 03/28/2007 | EP1767297A1 Deep-hole drill, drilling process and workpiece manufactured by means of such a deep-hole drill |
| 03/28/2007 | EP1766179A1 Enlarging and stabilising tool for a borehole |
| 03/28/2007 | EP1436486B1 Method and arrangement of controlling of percussive drilling based on the stress level determined from the measured feed rate |
| 03/28/2007 | EP1356224B1 Bundle of pipes and method for parallel arrangement of pipes according to a bore and swivel method |
| 03/28/2007 | CN2883647Y Well correction appts. |
| 03/28/2007 | CN2883646Y 滚轮稳定器 Wheel Stabilizer |
| 03/28/2007 | CN2883645Y Slide rod type power unit of horizontal directional drill |
| 03/28/2007 | CN2883487Y Pile forming appts. for threaded pile |
| 03/28/2007 | CN1936264A Method for designing well-drilling borehole track |
| 03/28/2007 | CN1936263A Design-while-drilling method for controlling borehole track while drilling well |
| 03/27/2007 | US7195320 Thermal rock fragmentation application in narrow vein extraction |
| 03/27/2007 | US7195085 Drill bit |
| 03/27/2007 | US7195083 Three dimensional steering system and method for steering bit to drill borehole |
| 03/27/2007 | US7195082 Drill head steering |
| 03/27/2007 | US7195081 Method and device for boring holes in soil or rock |
| 03/27/2007 | US7195080 Expandable drilling tool and method |
| 03/27/2007 | US7195079 Directional reaming system |
| 03/27/2007 | US7195061 Apparatus for expanding a tubular member |
| 03/27/2007 | CA2382356C Method and system for processing of drilling fluid |
| 03/21/2007 | EP1764475A1 Drilling system and methods of drilling lateral boreholes |
| 03/21/2007 | CN2881058Y Reversed scratching hold diameter maintaining reamer |
| 03/21/2007 | CN2881057Y Pressurized short joint of super-shallow horizontal well |
| 03/21/2007 | CN2881056Y Location device of self-locking oblique apparatus |
| 03/21/2007 | CN2881054Y Wet type dust eliminating system of diving hole drilling machine |
| 03/21/2007 | CN1932234A Method and apparatus for realizing double-gradient well drilling |
| 03/21/2007 | CN1932233A Hydraulic energy-accumulating workover rig |
| 03/21/2007 | CN1932231A Branched selective reentry method and apparatus |
| 03/21/2007 | CN1932230A Branched well selective guiding in tool |
| 03/20/2007 | US7191852 Energy accelerator |
| 03/20/2007 | US7191840 Casing running and drilling system |
| 03/20/2007 | US7191839 Drilling rig apparatus and downhole tool assembly system and method |
| 03/20/2007 | US7191837 Motion compensator |
| 03/20/2007 | CA2354994C Acoustic flow pulsing apparatus and method for drill string |
| 03/15/2007 | WO2007030047A1 A one-piece drill bit for single-pass anchor bolting and single pass drilling apparatus |
| 03/15/2007 | WO2007028238A1 Method of breaking brittle solids |
| 03/15/2007 | WO2006023690A3 A modular, distributed, rov retrievable subsea control system, associated deepwater subsea blowout preventer stack configuration, and methods of use |
| 03/15/2007 | US20070056774 Apparatus and methods for drilling a wellbore using casing |
| 03/15/2007 | US20070056770 Hydrothermal Mineral Extraction |
| 03/15/2007 | US20070056728 Methods of using settable compositions comprising cement kiln dust |
| 03/15/2007 | US20070056364 Drill hole measuring device and rock drilling unit |
| 03/15/2007 | US20070056155 Method of installing flange on tubular body at desired elevation |
| 03/15/2007 | CA2621259A1 Method of breaking brittle solids |
| 03/15/2007 | CA2620473A1 A one-piece drill bit for single-pass anchor bolting and single pass drilling apparatus |
| 03/14/2007 | EP1614852B1 Hole opener |