E21B - Earth or rock drilling; Obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells

More topics under "E21B - Earth or rock drilling; Obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells" (324,830)
E21B 1 - Percussion drilling (2,080)
E21B 10 - Drill bits (19,464)
E21B 11 - Other drilling tools (454)
E21B 12 - Accessories for drilling tools (993)
E21B 15 - Supports for the drilling machine, e.g. derricks or masts (4,619)
E21B 17 - Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings (27,800)
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)
E21B 21 - Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor (13,780)
E21B 23 - Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells (12,712)
E21B 25 - Apparatus for obtaining or removing undisturbed cores, e.g. core barrels, core extractors (2,102)
E21B 27 - Containers for collecting or depositing substances in boreholes or wells, e.g. bailers for collecting mud or sand; Drill bits with means for collecting substances, e.g. valve drill bits (1,068)
E21B 28 - Vibration generating arrangements for boreholes or wells, e.g. for stimulating production (888)
E21B 29 - Cutting or destroying pipes, packers, plugs, or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground (5,744)
E21B 3 - Rotary drilling (4,061)
E21B 31 - Fishing for or freeing objects in boreholes or wells (3,788)
E21B 33 - Sealing or packing boreholes or wells (33,564)
E21B 34 - Valve arrangements for boreholes or wells (14,685)
E21B 35 - Methods or apparatus for preventing or extinguishing fires (324)
E21B 36 - Heating, cooling, or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones (4,262)
E21B 37 - Methods or apparatus for cleaning boreholes or wells (5,129)
E21B 4 - Drives for drilling, used in the borehole (6,032)
E21B 40 - Tubing catchers, automatically arresting the fall of oil-well tubing (79)
E21B 41 - Equipment or details not covered by groups (7,984)
E21B 43 - Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells (64,186)
E21B 44 - Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions (5,356)
E21B 45 - Measuring the drilling time or rate of penetration (257)
E21B 47 - Survey of boreholes or wells (31,352)
E21B 49 - Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells (11,875)
E21B 6 - Drives for drilling with combined rotary and percussive action (930)
E21B 7 - Special methods or apparatus for drilling (22,064)

Patents for E21B - Earth or rock drilling; Obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells (2,021)
01/2007
01/18/2007	US20070012451 Piggable flowline-riser system
01/18/2007	US20070012437 Inflatable packer
01/16/2007	US7163066 Gravity valve for a downhole tool
01/11/2007	WO2007004889A1 Apparatus for sieving and fluid separation and a method of using same
01/11/2007	WO2007003705A1 Arrangement for controlling pressure-fluid-operated drilling equipment
01/11/2007	WO2005121506A9 Method and system for collaring
01/11/2007	US20070007760 Threaded connections and methods for forming threaded connection
01/11/2007	CA2613043A1 Apparatus for sieving and fluid separation and a method of using same
01/09/2007	CA2431152C Well-bore sensor apparatus and method
01/04/2007	WO2007001187A1 Impact hammer for coiled tubing drilling
01/04/2007	WO2007000492A1 Arrangement for positioning rock drilling rig on drilling site
01/04/2007	WO2007000488A1 Arrangement for positioning drilling unit
01/03/2007	CN1890451A System and method for damping vibration in a drill string
01/02/2007	CA2330987C Protected lubricant reservoir with pressure control for sealed bearing earth boring drill bit
01/02/2007	CA2321469C Dual-seal drill bit with fluid cleaning capability
01/02/2007	CA2287773C Downhole nmr tool having a programmable pulse sequencer
12/2006
12/28/2006	WO2006137743A1 Gripping device
12/28/2006	WO2006121341B1 Method and device for filtering in a well.
12/28/2006	WO2006121340B1 Packer-anchoring device
12/28/2006	US20060290066 Reinforcement ring
12/28/2006	US20060289154 Top drive swivel apparatus and method
12/21/2006	WO2006135248A1 Power tong device
12/20/2006	EP1733118A1 Clamping apparatus, drill string component and rock drilling rig
12/20/2006	EP1733116A1 Device for a drilling tool
12/19/2006	US7150329 Auto-extending/retracting electrically isolated conductors in a segmented drill string
12/07/2006	WO2005050714A3 High temperature electronic devices
12/07/2006	US20060272826 Apparatus and method for radially expanding a wellbore casing using and adaptive expansion system
11/2006
11/30/2006	WO2006126886A1 A device for selective movement of well tools and also a method of using same
11/30/2006	US20060266527 Apparatus for radially expanding and plastically deforming a tubular member
11/30/2006	US20060266517 Method for drilling with improved fluid collection pattern
11/30/2006	CA2604355A1 A device for selective movement of well tools and also a method of using same
11/29/2006	EP1725736A1 Single pass drilling apparatus, use a one -piece drill bit, method and rock bolt for single pass rock bolting.
11/28/2006	US7140445 Method and apparatus for drilling with casing
11/28/2006	CA2331381C A method for the formation of a plug in a petroleum well
11/23/2006	US20060265131 Method to determine properties of a sedimentary body from thickness and grain size distribution at a point within the body
11/22/2006	CN1867752A Three in one combined power unit for nitrogen system, fluid system, and coiled tubing system
11/21/2006	US7137454 Apparatus for facilitating the connection of tubulars using a top drive
11/16/2006	WO2006121341A1 Method and device for filtering in a well.
11/16/2006	WO2006121340A1 Packer-anchoring device
11/16/2006	WO2004025069A3 System and method of drilling and completion
11/14/2006	US7134531 Heavy load carry slips and method
11/09/2006	WO2006118470A1 Annular packer device
11/09/2006	WO2005021920B1 Downhole tubular splitter assembly and method
11/08/2006	EP1718994A1 Combined surface and wellbore electromagnetic measurement system and method for determining formation fluid properties
11/08/2006	EP1718842A1 Method and actuator device
11/07/2006	US7133325 Apparatus and method for generating electrical power in a borehole
11/02/2006	WO2006115418A1 Pulling tool for use in oil and gas wells
11/02/2006	WO2006099637A3 Rock drill and method of breaking rock
11/02/2006	US20060243489 System and method for damping vibration in a drill string
11/02/2006	EP1716312A1 Drill string component, wear protection component and cutter head for use in a rock drilling process
11/02/2006	EP1327054B1 Method for determining pressure profiles in wellbores, flowlines and pipelines, and use of such method
10/2006
10/26/2006	WO2006112728A1 Condition checking apparatus and method
10/19/2006	WO2006110040A1 Drilling- or service rig
10/19/2006	WO2006110039A1 Valve
10/19/2006	WO2006108918A1 Method, arrangement and valve for controlling rock drilling
10/19/2006	US20060234873 Gallic acid, gallow tannins, esters of gallic acid, and/or salts of gallic acid for well bores; starches, schleroglucans, guar gums, polyacrylates, and/or xanthan gum viscosifying agent; and weighting agent; oil and gas drilling and recovery from subterranean formations
10/17/2006	US7121351 Apparatus and method for completing a wellbore
10/17/2006	US7121340 Method and apparatus for reducing pressure in a perforating gun
10/12/2006	US20060225793 Method and apparatus for dosing inhibitors
10/11/2006	CN1846128A An apparatus and a method of visulazing target objects in a fluid-carrying pipe
10/03/2006	US7114582 Method and apparatus for removing cuttings from a deviated wellbore
09/2006
09/21/2006	WO2006099637A2 Rock drill and method of breaking rock
09/21/2006	WO2006098634A1 A method and a device for in situ formation of a seal in an annulus in a well
09/21/2006	WO2006098631A1 Device and method for setting a bottom packer
09/21/2006	US20060210362 Method of Installation of a Tension Leg Platform
09/21/2006	US20060208488 Protective compression and tension sleeves for threaded connections for radially expandable tubular members
09/21/2006	US20060207760 Collapsible expansion cone
09/19/2006	US7108069 Online thermal and watercut management
09/19/2006	US7107863 Internal riser inspection system, apparatus and methods of using same
09/14/2006	WO2006096069A1 An apparatus and a method for deployment of a well intervention tool string into a subsea well
09/14/2006	WO2006096068A1 Pipe handling equipment
09/14/2006	US20060204338 Umbilical anchoring clamp
09/14/2006	CA2600406A1 Pipe handling equipment
09/13/2006	EP1700002A2 High temperature environment tool system and method
09/12/2006	US7104323 Spiral tubular tool and method
09/07/2006	US20060196679 Apparatus for radially expanding and plastically deforming a tubular member
09/07/2006	US20060196663 Continuous monobore liquid lining system
08/2006
08/31/2006	WO2006073312A3 A device for gripping and transporting pipe lengths and an intermediate storage facility for storage of pipes
08/31/2006	WO2006051168A9 Arrangement for sucking dust
08/31/2006	WO2005059294A3 Pipeline integrity management process
08/24/2006	WO2006088379A1 Centralization and running tool and method
08/24/2006	WO2006088372A1 System and method for well intervention
08/24/2006	WO2006023218A3 Rotating pressure control head
08/24/2006	US20060185864 Method of generating stress pulse in tool by means of pressure fluid operated impact device, and impact device
08/22/2006	US7094738 Phospholipid lubricating agents in aqueous based drilling fluids
08/17/2006	WO2006085775A1 Method and equipment for the reduction of multiple dispersions
08/17/2006	WO2006085773A1 Sound source for stimulation of oil reservoirs
08/17/2006	WO2005021920A3 Downhole tubular splitter assembly and method
08/17/2006	US20060180306 Method for improved vertical sweep of oil reservervoirs
08/17/2006	CA2597567A1 Sound source for stimulation of oil reservoirs
08/17/2006	CA2597469A1 Method and equipment for the reduction of multiple dispersions
08/16/2006	CN1819898A Impact device and method for generating stress pulse therein
08/16/2006	CN1819897A Method of generating stress pulse in tool by means of pressure fluid operated impact device, and impact device
08/10/2006	WO2005050777A3 Receiver electronics proximate antenna
08/09/2006	EP1687837A2 High temperature electronic devices
08/08/2006	US7086488 Cutting element having enhanced cutting geometry
08/03/2006	US20060169460 Apparatus for radially expanding and plastically deforming a tubular member
08/02/2006	EP1686236A1 System for drilling and completing multilateral wells
08/02/2006	EP1042587B1 System for drilling and completing multilateral wells
08/01/2006	US7084826 Low cost inductor devices manufactured from conductive loaded resin-based materials

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