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)
09/2004
09/30/2004	US20040190999 Method of installation of a tension leg platform
09/30/2004	CA2519738A1 Restricting fluid passage and novel materials therefor
09/30/2004	CA2518453A1 Apparatus and method for radially expanding a wellbore casing using an adaptive expansion system
09/30/2004	CA2517524A1 Apparatus and method for radially expanding a wellbore casing using an expansion mandrel and a rotary expansion tool
09/28/2004	US6796381 Apparatus for extraction of oil via underground drilling and production location
09/23/2004	WO2004081494A2 Determination of the orientation of a dowhole device
09/23/2004	WO2004081335A2 A motor pulse controller
09/23/2004	WO2004081333A2 A method and apparatus for a downhole excavation in a wellbore
09/23/2004	WO2004081332A2 Improvements in drilling apparatus
09/23/2004	WO2004027205B1 Mono diameter wellbore casing
09/23/2004	WO2004018825B1 Riser connector
09/23/2004	WO2003106130A3 Collapsible expansion cone
09/23/2004	WO2003078785B1 Collapsible expansion cone
09/23/2004	US20040182611 Heavy load carry slips and method
09/23/2004	CA2518938A1 Determination of the orientation of a downhole device
09/23/2004	CA2518820A1 Improvements in drilling apparatus
09/22/2004	EP1458949A2 Rotary support table
09/21/2004	US6793019 Tapered ramp positive lock latch mechanism
09/16/2004	WO2004079159A1 Methods and compositions for consolidating proppant in fractures
09/16/2004	WO2004079149A2 Subsea well workover system and method
09/16/2004	WO2004079147A2 Method and apparatus for drilling with casing
09/16/2004	WO2004079146A2 Method of installation of a tension leg platform
09/16/2004	WO2004079145A2 Method for drilling and completing wells
09/16/2004	WO2004022902B1 Tie-back connection for subsea well
09/16/2004	WO2004018823B1 Interposed joint sealing layer method of forming a wellbore casing
09/16/2004	CA2517392A1 Method of installation of a tension leg platform
09/10/2004	WO2004076798A2 Apparatus for radially expanding and plastically deforming a tubular member
09/10/2004	WO2003104601B1 Mono-diameter wellbore casing
09/10/2004	WO2003058022B1 Seal receptacle using expandable liner hanger
09/02/2004	WO2004074623A2 Automated control system for back-reaming
09/02/2004	WO2004074622A2 Protective compression and tension sleeves for threaded connections for radially expandable tubular members
09/02/2004	WO2004027202A3 Inner riser adjustable hanger and seal assembly
09/02/2004	WO2003089752A3 Well completion with merged influx of well fluids
09/02/2004	CA2614179A1 Protective compression and tension sleeves for threaded connections for radially expandable tubular members
09/02/2004	CA2613131A1 Protective compression and tension sleeves for threaded connections for radially expandable tubular members
09/02/2004	CA2613007A1 Protective compression and tension sleeves for threaded connections for radially expandable tubular members
09/02/2004	CA2516140A1 Protective compression and tension sleeves for threaded connections for radially expandable tubular members
08/2004
08/26/2004	WO2004072430A2 Pneumatic perforator with independent rotation of the drill
08/26/2004	WO2004027204A3 Cutter for wellbore casing
08/26/2004	WO2003042487B1 Mono diameter wellbore casing
08/19/2004	WO2003067018A3 Well system
08/17/2004	US6777669 Scale monitor
08/12/2004	WO2004022902A3 Tie-back connection for subsea well
08/12/2004	WO2004018825A3 Riser connector
08/12/2004	WO2004011763A3 Mechanical bladder pump
08/12/2004	WO2004005663A3 Tapered ramp positive lock latch mechanism
08/12/2004	WO2004005662A3 Method for upward growth of a hydraulic fracture along a well bore sandpacked annulus
08/10/2004	US6772844 High pressure sealing apparatus and method
08/05/2004	WO2004065750A2 Multiple dispensing check valve delivery system
08/05/2004	WO2004065749A2 Integrated drilling dynamics system and method of operating same
08/05/2004	WO2004046494A3 Method using particulate chelates to stimulate production of petroleum in carbonate formations
08/05/2004	WO2004044366A3 Method and apparatus for varying the density of drilling fluids in deep water oil drilling applications
08/05/2004	WO2004027205A3 Mono diameter wellbore casing
08/05/2004	WO2004018823A3 Interposed joint sealing layer method of forming a wellbore casing
08/05/2004	WO2003104603A3 New and improved method and apparatus involving an integrated or otherwise combined exit guide and section mill for sidetracking or directional drilling from existing wellbores
08/05/2004	WO2003042489A3 Method and apparatus for a monodiameter wellbore, monodiameter casing, monobore, and/or monowell
08/05/2004	US20040149438 Process for the recovery of oil from a natural oil reservoir
08/05/2004	US20040149431 Method and apparatus for a monodiameter wellbore, monodiameter casing and monobore
07/2004
07/29/2004	WO2004027200A3 Bottom plug for forming a mono diameter wellbore casing
07/29/2004	WO2004018824A3 Magnetic impulse applied sleeve method of forming a wellbore casing
07/29/2004	WO2004013448A3 Method for using coconut coir as a lost circulation material for well drilling
07/29/2004	WO2004007895A3 Mud saver valve
07/29/2004	WO2004005660A8 Active hold down system for jack-up drilling unit
07/27/2004	CA2227601C Wellbore resonance tools
07/22/2004	WO2004061259A2 Subterranean drainage device
07/22/2004	WO2004061257A2 Well elastic wave source
07/22/2004	WO2003071086A3 Mono-diameter wellbore casing
07/22/2004	US20040141414 Method and process for prediction of subsurface fluid and rock pressures in the earth
07/15/2004	WO2004025067A3 Reducing paraffin, asphaltene, and hydrate accumulations in wells
07/15/2004	WO2003104601A3 Mono-diameter wellbore casing
07/15/2004	WO2003083248A3 Perforation method and apparatus
07/15/2004	WO2003078785A3 Collapsible expansion cone
07/14/2004	CN1513079A Process for recovery of oil from natural oil reservoir
07/08/2004	WO2004057147A2 Tensioning system for production tubing in a riser at a floating installation for hydrocarbon production.
07/08/2004	WO2003093623A3 Mono diameter wellbore casing
07/08/2004	WO2003060280A3 Rotary support table
07/08/2004	WO2003058022A3 Seal receptacle using expandable liner hanger
07/08/2004	US20040129460 Method for using coconut coir as a lost circulation material for well drilling
07/01/2004	WO2004027203A3 Mono-column floating platform and method of installing same
07/01/2004	WO2003042487A3 Mono diameter wellbore casing
07/01/2004	US20040128053 Offload control of turboalternator with rich burn quick quench lean burn combustor to prevent blowout of combustor
06/2004
06/29/2004	US6757613 Graphical method for designing the trajectory of a well bore
06/24/2004	WO2004053284A2 Isolated electrical connection in a drill string
06/24/2004	WO2004025070A3 Turboalternator offload control with combustor blowout prevention
06/23/2004	EP1076758B1 A method for the formation of a plug in a petroleum well
06/22/2004	US6753791 Burst QAM downhole telemetry system
06/17/2004	WO2004007896A3 Tubular slip device and method
06/17/2004	WO2004003329A3 Remote down-hole well telemetry
06/17/2004	US20040113426 Riser connector
06/17/2004	US20040112645 Method and apparatus for removing cuttings from a deviated wellbore
06/17/2004	US20040112607 Devices and methods for extraction, transportation and/or release of material
06/15/2004	US6751558 Method and process for prediction of subsurface fluid and rock pressures in the earth
06/10/2004	WO2004003331A3 Non-corrosive amphoteric surfactants and method of well treatment
06/03/2004	WO2004046495A2 Method of treating subterranean formations to enchance hydrocaronproduction using proppants
06/03/2004	WO2004046494A2 Method using particulate chelates to stimulate production of petroleum in carbonate formations
06/03/2004	WO2003023179B1 System for lining a wellbore casing
05/2004
05/27/2004	WO2004044370A2 Devices and methods for extraction, transportation and/or release of material
05/27/2004	WO2004044366A2 Method and apparatus for varying the density of drilling fluids in deep water oil drilling applications
05/27/2004	WO2003097988A3 Equalizer valve and method of use
05/21/2004	WO2004018822A3 A method and process for prediction of subsurface fluid and rock pressures in the earth

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