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)
02/2005
02/10/2005	WO2005012684A2 Compositions and methods for treating subterranean formations
02/10/2005	WO2005003504A3 System, method and apparatus for securing control lines to a well pipe
02/03/2005	WO2005010316A2 Remotely operated deployment system and method of use
02/03/2005	US20050023222 Filtration apparatus and method
02/02/2005	EP1502002A2 Well completion with merged influx of well fluids
01/2005
01/27/2005	WO2005008017A2 Instrumented drill head, related drilling/bolting machines, and methods
01/27/2005	WO2005008016A2 Improve inflatable packer
01/27/2005	WO2004065749A3 Integrated drilling dynamics system and method of operating same
01/25/2005	US6845822 Auto-extending/retracting electrically isolated conductors in a segmented drill string
01/20/2005	WO2005005764A2 Spiral tubular tool and method
01/20/2005	WO2005005763A2 Method for drilling with improved fluid collection pattern
01/20/2005	WO2004097155A3 Casing with isolated annular space
01/20/2005	US20050011650 Method and apparatus for expanding and separating tubulars in a wellbore
01/20/2005	CA2525850A1 Method for drilling with improved fluid collection pattern
01/18/2005	US6843331 Method and apparatus for varying the density of drilling fluids in deep water oil drilling applications
01/13/2005	WO2005003504A2 System, method and apparatus for securing control lines to a well pipe
01/13/2005	WO2005002802A1 Impact device and method for generating stress pulse therein
01/13/2005	WO2005002801A1 Method of generating stress pulse in tool by means of pressure fluid operated impact device, and impact device
01/06/2005	WO2005001231A2 Submersible pump
01/06/2005	WO2004025068A3 System and method for well workover with horizontal tree
01/06/2005	US20050000692 Spiral tubular tool and method
01/05/2005	CN1560654A Downhole NMR tool having a programmable pulse sequencer
01/05/2005	CN1560653A Downhole NMR tool having a programmable pulse sequencer
12/2004
12/29/2004	WO2004079149A3 Subsea well workover system and method
12/28/2004	US6836720 Offload control of turboalternator with rich burn quick quench lean burn combustor to prevent blowout of combustor
12/23/2004	WO2004097157A3 Method for treating bottomhole zone
12/23/2004	WO2004081494A3 Determination of the orientation of a dowhole device
12/23/2004	US20040256101 Formation characterization using wellbore logging data
12/16/2004	WO2004061257A3 Well elastic wave source
12/16/2004	WO2004027202B1 Inner riser adjustable hanger and seal assembly
12/16/2004	WO2003106130B1 Collapsible expansion cone
12/16/2004	WO2003093623B1 Mono diameter wellbore casing
12/16/2004	US20040251050 Method and apparatus for drilling with casing
12/15/2004	EP1485567A2 Mono-diameter wellbore casing
12/09/2004	WO2004106697A1 Apparatus and method for treating injection fluid
12/09/2004	WO2004106693A2 Method and appartus for cutting earthen formations
12/09/2004	US20040245017 Integrated drilling dynamics system
12/09/2004	US20040244993 Three in one combined power unit for nitrogen system, fluid system, and coiled tubing system
12/09/2004	CA2533560A1 Apparatus and method for treating injection fluid
12/08/2004	CN1179113C Excavator
12/02/2004	WO2004085789A3 Well system, unit module and method for formation of a well system
12/02/2004	WO2004079147A3 Method and apparatus for drilling with casing
12/02/2004	US20040238175 Open water running tool and lockdown sleeve assembly
11/2004
11/30/2004	US6824171 Riser connector
11/25/2004	WO2004101946A2 Formation characterization using wellbore logging data
11/25/2004	WO2004101945A2 Method for improved vertical sweep of oil reservoirs
11/25/2004	US20040231858 System for lining a wellbore casing
11/25/2004	US20040231840 Controlling Transient Pressure Conditions In A Wellbore
11/24/2004	EP1478824A2 Well system
11/18/2004	WO2004099552A2 Determining gradients using a multi-probed formation tester
11/18/2004	WO2004099550A2 Drilling aparatus
11/18/2004	WO2003042488A3 Deepwater slim hole well construction
11/18/2004	US20040230378 Determining gradients using a multi-probed formation tester
11/18/2004	US20040226748 Automated control system for back-reaming
11/18/2004	CA2524395A1 Drilling apparatus
11/11/2004	WO2004097164A1 System, lifting device and method for supporting a pipe string
11/11/2004	WO2004097157A2 Method for treating bottomhole zone
11/11/2004	WO2004097155A2 Casing with isolated annular space
11/11/2004	WO2004072430A3 Pneumatic perforator with independent rotation of the drill
11/11/2004	WO2004065750A3 Multiple dispensing check valve delivery system
11/11/2004	US20040221985 Drill string design methodology for mitigating fatigue failure
11/04/2004	WO2004094768A2 Drill string design methodology for mitigating fatigue failure
11/04/2004	WO2004094766A2 Apparatus for radially expanding and plastically deforming a tubular member
11/04/2004	WO2004094764A2 Low cost capacitors manufactured from conductive loaded resin-based materials
11/04/2004	WO2004094763A2 Low cost inductor devices manufactured from conductive loaded resin-based materials
11/04/2004	WO2004093521A2 Method to determine properties of a sedimentary body from thickness and grain size distribution at a point within the body
11/04/2004	WO2004081332A3 Improvements in drilling apparatus
11/04/2004	US20040217879 Motor pulse controller
11/04/2004	US20040217593 Tubing containment system
11/04/2004	CA2520135A1 Method to determine properties of a sedimentary body from thickness and grain size distribution at a point within the body
11/03/2004	EP1472811A2 Burst qam downhole telemetry system
10/2004
10/28/2004	WO2004092530A2 Radially expanding casing and driling a wellbore
10/28/2004	WO2004092529A2 Arctic platform
10/28/2004	WO2004092528A2 Apparatus for radially expanding and plastically deforming a tubular member
10/28/2004	WO2004092527A2 Apparatus for radially expanding and plastically deforming a tubular member
10/28/2004	WO2003089752B1 Well completion with merged influx of well fluids
10/28/2004	US20040211561 agglomeration of particles having curable coatings, by the pumping mixtures of the particles and liquid fracturing fluid into subterranean zones, then curing the coatings with heat; stabiliztion; well completion
10/28/2004	CA2677756A1 Arctic platform
10/28/2004	CA2672866A1 Arctic platform
10/28/2004	CA2523779A1 Apparatus for radially expanding and plastically deforming a tubular member
10/28/2004	CA2523654A1 Apparatus for radially expanding and plastically deforming a tubular member
10/28/2004	CA2522546A1 Radially expanding casing and drilling a wellbore
10/21/2004	US20040207538 Burst QAM downhole telemetry system
10/21/2004	US20040207394 Internal riser inspection system, apparatus and methods of using same
10/20/2004	EP1015729B1 Connection of tubulars using a top drive
10/14/2004	WO2004088087A2 Tubing containment system
10/14/2004	WO2004027204B1 Cutter for wellbore casing
10/14/2004	WO2003071086B1 Mono-diameter wellbore casing
10/07/2004	WO2004085790A2 Apparatus for radially expanding and plastically deforming a tubular member
10/07/2004	WO2004085789A2 Well system, unit module and method for formation of a well system
10/07/2004	US20040196201 Low cost inductor devices manufactured from conductive loaded resin-based materials
10/07/2004	US20040194963 Subsea well workover system and method
10/05/2004	US6800593 To increase the viscosity or decrease the fluid loss of well drilling and servicing fluids
09/2004
09/30/2004	WO2004083594A2 Apparatus and method radially expanding a wellbore casing using an expansion mandrel and a rotary expansion tool
09/30/2004	WO2004083593A2 Radial expansion and milling of expandable tubulars
09/30/2004	WO2004083592A2 Apparatus and method for running a radially expandable tubular member
09/30/2004	WO2004083591A2 Apparatus and method for radially expanding a wellbore casing using an adaptive expansion system
09/30/2004	WO2004083589A2 Restricting fluid passage and novel materials therefor
09/30/2004	WO2004057147A3 Tensioning system for production tubing in a riser at a floating installation for hydrocarbon production.
09/30/2004	WO2004027200B1 Bottom plug for forming a mono diameter wellbore casing

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