E21B 7 - Special methods or apparatus for drilling

Patents for E21B 7 - Special methods or apparatus for drilling (22,064)
11/2004
11/10/2004	EP1474589A1 Casing reaming assembly
11/10/2004	EP1474587A1 Plasma channel drilling process
11/10/2004	CN2654843Y Twin guide rail twin hydraulic cylinder deep sea core drill
11/10/2004	CN2654842Y Deep sea corer having prefeeding prelocating device
11/09/2004	US6814168 Steerable horizontal subterranean drill bit having elevated wear protector receptacles
11/09/2004	US6814167 Boring device and boring method
11/09/2004	US6814161 Stakedown assembly for a horizontal directional drill
11/09/2004	CA2272680C Expandable wellbore junction
11/09/2004	CA2229091C Methods of completing a subterranean well and associated apparatus
11/09/2004	CA2140581C Orienting, retrievable whipstock anchor
11/04/2004	WO2004094783A1 Well string assembly
11/04/2004	WO2004094772A1 A rock drill bit assembly
11/04/2004	WO2004094767A2 Expanded liner system and method
11/04/2004	WO2004094734A2 Drill bit
11/04/2004	WO2003101880A3 Method and apparatus for moving a mass
11/04/2004	US20040216925 Method and apparatus for drilling and lining a wellbore
11/04/2004	US20040216922 Method for controlling a drilling sequence, a rock drilling apparatus and a computer programme to form a drilling sequence
11/04/2004	US20040216921 Self-controlled directional drilling systems and methods
11/04/2004	US20040216920 Visual probes and methods for placing visual probes into subsurface areas
11/04/2004	US20040216892 Drilling with casing latch
11/04/2004	US20040216878 Method and apparatus for drilling and lining a wellbore
11/04/2004	CA2522572A1 A rock drill bit assembly
11/03/2004	EP1472811A2 Burst qam downhole telemetry system
11/03/2004	EP1472483A1 Conduit pipe
11/03/2004	EP1472431A2 Method and system for building modular structures from which oil and gas wells are drilled
11/03/2004	CN2653110Y Novel roller super path centering guide
11/03/2004	CN2653109Y 遥调稳定器 Remote adjustment stabilizer
11/03/2004	CN1174179C Method for structure duct in ground
11/02/2004	USRE38642 Downhole equipment, tools and assembly procedures for the drilling, tie-in and completion of vertical cased oil wells connected to liner-equipped multiple drainholes
11/02/2004	US6810973 Steerable horizontal subterranean drill bit having offset cutting tooth paths
11/02/2004	US6810972 Steerable horizontal subterranean drill bit having a one bolt attachment system
11/02/2004	US6810971 Steerable horizontal subterranean drill bit
11/02/2004	US6810960 Methods for increasing production from a wellbore
10/2004
10/28/2004	WO2004092633A2 Spoolable composite coiled tubing connector
10/28/2004	WO2004092532A1 A downhole-drilling tool with high-pressure and continuous-flow jet and a method for breaking the rock
10/28/2004	WO2004092530A2 Radially expanding casing and driling a wellbore
10/28/2004	WO2003076760A9 Steerable soil penetration system
10/28/2004	US20040214515 Vehicle mounted game hoist and skinner
10/28/2004	US20040211598 Fast moving drilling rig
10/28/2004	US20040211572 Modular drilling rig substructure
10/28/2004	US20040211570 Expanded liner system and method
10/28/2004	DE10317664B3 Process for inserting geothermal probe into an underground borehole comprises decoupling a hollow bore screw from, guiding the probe into the screw, removing the tip from the screw, removing the screw and introducing a filler
10/28/2004	CA2555075A1 A downhole-drilling tool with high-pressure and continuous-flow jet and a method for breaking the rock
10/28/2004	CA2522546A1 Radially expanding casing and drilling a wellbore
10/27/2004	EP1470316A1 Method for controlling a drilling sequence, a rock drilling apparatus and a computer programme to form a drilling sequence
10/27/2004	CN2651413Y Positive displacement controllable commutator of continuous pipe directional drilling well
10/27/2004	CN1540131A Integrated self water-feeding system combined with engineering drilling machine
10/27/2004	CN1173110C Ground remote control adjustable bent sub
10/26/2004	USRE38636 Downhole equipment, tools and assembly procedures for the drilling, tie-in and completion of vertical oil wells connected to liner-equipped multiple drainholes
10/26/2004	US6808030 Enlargement drilling system
10/26/2004	US6808027 Wellbore directional steering tool
10/26/2004	CA2329673C Equi-pressure geosteering
10/21/2004	WO2004090287A1 Drill hole measuring device and rock drilling unit
10/21/2004	WO2004090277A1 Hole opener
10/21/2004	WO2004090276A1 Directional reaming system
10/21/2004	US20040207538 Burst QAM downhole telemetry system
10/21/2004	US20040206551 Drilling rig apparatus and downhole tool assembly system and method
10/21/2004	US20040206548 Active controlled bottomhole pressure system & method
10/21/2004	US20040206509 Casing wear band and method of attachment
10/21/2004	US20040206451 High-speed chemical drill
10/20/2004	CN2649874Y Change speed gear box for oil drilling
10/20/2004	CN2649765Y Ground controllable underground adjustable elbow connection
10/20/2004	CN2649764Y Integrated fully-hydraulic down-the-hole drilling rig
10/20/2004	CN2649648Y Extrusion-expanding diameter-varying bored concrete pile shaping machine
10/19/2004	US6805200 Horizontal spool tree wellhead system and method
10/19/2004	CA2137560C Method of creating a wellbore in an underground formation
10/14/2004	WO2004067898A3 Integrated mast and top drive for drilling rig
10/14/2004	WO2004065835A3 Connection assembly for directional drilling
10/14/2004	WO2004016899B1 Horizontal spool tree wellhead system and method
10/13/2004	EP1467059A2 Method and apparatus for completing wells with lateral branches
10/13/2004	EP1466068A2 Dual-member pipe driven power generator
10/13/2004	EP0901562B1 Downhole apparatus
10/12/2004	USRE38616 Downhole equipment, tools and assembly procedures for the drilling, tie-in and completion of vertical cased oil wells connected to liner-equipped multiple drainholes
10/12/2004	US6802378 Method of and apparatus for directional drilling
10/07/2004	WO2004085788A2 Method and arrangement for performing drilling operations
10/07/2004	WO2004061258A3 Method of and apparatus for directional drilling
10/07/2004	US20040195005 Well drilling system and its method
10/07/2004	US20040195003 Laser liner creation apparatus and method
10/07/2004	US20040194985 Rock drilling rig and rock breaking machine
10/07/2004	US20040194963 Subsea well workover system and method
10/06/2004	EP0802302B1 Riser that is to be detached near the water surface
10/06/2004	CN1535347A Expander for expanding tubular element
10/06/2004	CN1170050C Modulation type offset leading tool
10/06/2004	CN1170038C Variable bearing disk club-footed pile forming equipment
10/05/2004	US6799923 Trenchless water pipe replacement device and method
10/05/2004	US6799647 Earth drilling and boring system
10/05/2004	US6799646 Adjustable deflecting sub
09/2004
09/30/2004	WO2004083595A2 Substantially neutrally buoyant and positively buoyant electrically heated flowlines for production of subsea hydrocarbons
09/30/2004	WO2004083590A2 Method and apparatus for drilling a borehole with a borehole liner
09/30/2004	WO2004057147A3 Tensioning system for production tubing in a riser at a floating installation for hydrocarbon production.
09/30/2004	US20040190374 Earth penetrating apparatus and method employing radar imaging and rate sensing
09/30/2004	US20040188144 Method for producing earth boreholes
09/30/2004	US20040188142 Directional reaming system
09/30/2004	US20040188099 Method of creating a casing in a borehole
09/30/2004	DE10310726B3 Core drilling arrangement with flushing has container for bore flushing with core material released from tube arranged in upper region of core drilling tube into which pump feeds, overflow openings
09/29/2004	EP1165930B1 Whipstock casing milling system
09/29/2004	CN1533464A Drilling device for earth drill
09/28/2004	US6797326 Method of making polycrystalline diamond with working surfaces depleted of catalyzing material
09/28/2004	US6796390 Method and device for moving a tube in a borehole in the ground
09/23/2004	WO2004081494A2 Determination of the orientation of a dowhole device

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