E21B 21 - Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor

Patents for E21B 21 - Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor (13,780)
11/2009
11/12/2009	WO2009137537A2 Signal operated tools for milling, drilling, and/or fishing operations
11/12/2009	WO2009115829A3 Flow restrictor
11/12/2009	WO2009027750A3 A method for making a screen for a shale shaker
11/12/2009	WO2009027744A3 A method for making a screen for a shale shaker
11/12/2009	US20090277632 Completion technique and treatment of drilled solids
11/12/2009	CA2722612A1 Signal operated tools for milling, drilling, and/or fishing operations
11/11/2009	EP2115266A2 Use of cuttings tank for in-transit slurrification
11/11/2009	CN201344006Y Drilled mud treatment device
11/10/2009	US7614462 Drilling fluids
11/10/2009	CA2581108C Method and apparatus for remediating drill cuttings
11/10/2009	CA2512480C Controlling transient pressure conditions in a wellbore
11/10/2009	CA2371122C Shear-sensitive plugging fluid for plugging and a method for plugging a subterranean formation zone
11/10/2009	CA2289333C Cuttings sample catcher and method of use
11/10/2009	CA2270833C Gas trap for drilling mud
11/08/2009	CA2665724A1 Method and apparatus for removing metal cuttings from an oil well drilling mud stream
11/05/2009	WO2009135220A2 Fill up and circulation tool and mudsaver valve
11/05/2009	WO2009133108A1 Mechanical bi-directional isolation valve
11/05/2009	WO2009112948A3 Methods and systems of treating a wellbore
11/05/2009	WO2009105330A3 Method of estimating well disposal capacity
11/05/2009	WO2009102578A3 Method and system of monitoring rotational time of rotatable equipment
11/05/2009	WO2008132641A3 Well treatment using electric submersible pumping system
11/05/2009	US20090272580 Drilling system with drill string valves
11/05/2009	DE102008021491A1 Spannkopf für eine Erdbohranlage Chuck for a Erdbohranlage
11/05/2009	CA2841649A1 Fill up and circulation tool and mudsaver valve
11/05/2009	CA2722719A1 Fill up and circulation tool and mudsaver valve
11/05/2009	CA2722149A1 Mechanical bi-directional isolation valve
11/04/2009	EP2113632A1 Attachment device for forming a fluid supply
11/04/2009	EP2113050A2 Cuttings processing system
11/03/2009	CA2550453C Apparatus and methods for utilizing a downhole deployment valve
11/03/2009	CA2457113C Swing mounted fill up and circulating tool
11/03/2009	CA2385025C Method for determining a property of a hydrocarbon-bearing formation
11/03/2009	CA2379806C Rotary seal for directional drilling tools
10/2009
10/29/2009	WO2009132128A1 Vibratory separator motion
10/29/2009	US20090266617 Sleeve arrangement
10/29/2009	US20090266616 Connection device for forming a fluid supply
10/29/2009	US20090266532 Wellbore Tool for Filling, Circulating and Backflowing Fluids
10/29/2009	CA2721809A1 Vibratory separator motion
10/28/2009	EP2111495A2 High density slurry
10/27/2009	CA2549515C Zeolite-containing settable spotting fluids
10/22/2009	WO2009129103A2 Pressure control system
10/22/2009	WO2009128727A1 Cleaning magnet device for cleaning drilling fluid
10/22/2009	WO2009128031A1 Container system
10/22/2009	WO2008077499A8 Method to cure lost circulation
10/22/2009	US20090260886 Method for recovering valuable drilling mud materials using a binary fluid
10/22/2009	CA2721259A1 Pressure control system
10/22/2009	CA2720709A1 Container system
10/21/2009	CN201330595Y Oil level control mechanism of four-phase separator
10/21/2009	CN201330574Y Helical shunt nipple for gas drilling
10/21/2009	CN201330573Y Bottom-hole pressure precision control system of under balance drilling
10/21/2009	CN201330572Y Drilling fluid four-phase separator
10/21/2009	CN101560870A Foam base liquid recycling system in foam drilling
10/21/2009	CN101559421A Device for adjusting electro-hydraulic inclination angle of screen box of vibrating screen and method for using same
10/20/2009	US7605112 adding a two-phase polymer system of a water soluble copolymer of vinyl pyrrolidone and dimethylaminopropyl methacrylamide and in-situ formed water-insoluble particles of such copolymer into a drilling well fluid under aqueous, high temperature, high salinity conditions
10/20/2009	CA2436134C Method of controlling a well experiencing gas kicks
10/17/2009	CA2629422A1 Environmental monitoring and control system and method
10/15/2009	WO2009126774A2 Automated mud slowness estimation
10/15/2009	CA2685074A1 Automated mud slowness estimation
10/14/2009	CN201326394Y Self-cleaning drilling fluid vibration sieve
10/13/2009	CA2614576C Apparatus to recover sample gases from fluids
10/13/2009	CA2416116C Method and apparatus for formation damage removal
10/08/2009	WO2009123476A1 Systems and methods for subsea drilling
10/08/2009	WO2009088825A3 Method and apparatus for programmable pressure drilling and programmable gradient drilling, and completion
10/07/2009	CN201321858Y Quantitative degasser
10/06/2009	CA2452705C Multi-cycle downhole apparatus
10/06/2009	CA2430003C Hydraulic drill string accumulator
10/01/2009	WO2009120090A2 A collection device and method of using same
10/01/2009	CA2722617A1 A collection device and method of using same
09/2009
09/30/2009	EP2105576A1 Tubular filling system
09/30/2009	CN201318137Y Harmless well washing tool and string
09/29/2009	US7594551 Downhole supercharger process
09/29/2009	US7594540 Methods and apparatus for applying torque and rotation to connections
09/24/2009	WO2009115829A2 Flow restrictor
09/24/2009	WO2009074815A3 Waste solid cleaning apparatus
09/23/2009	EP1402222B1 Process for drying of sticky materials
09/22/2009	CA2485973C Equalizer valve
09/17/2009	WO2009114625A2 Flowback tool
09/17/2009	WO2009114240A1 Data aggregation for drilling operations
09/17/2009	WO2009112948A2 Methods and systems of treating a wellbore
09/17/2009	WO2009078731A3 A collecting device and a method of using same
09/17/2009	US20090229837 Flowback tool
09/17/2009	CA2853269A1 Methods and systems of treating a wellbore
09/17/2009	CA2718072A1 Methods and systems of treating a wellbore
09/17/2009	CA2717638A1 Flowback tool
09/17/2009	CA2715451A1 Data aggregation for drilling operations
09/16/2009	EP2101035A2 Method for increasing production from a wellbore
09/16/2009	EP1649129B1 Cutting tool comprising a device for transporting particles of a magnetic material
09/16/2009	CN201310310Y Throttle control device for under balance pressure drilling
09/16/2009	CN101532936A Method and device for evaluating inhibiting ability of drilling fluid on formation and decomposition of hydrate
09/15/2009	CA2486682C A downhole tool for use in a wellbore
09/15/2009	CA2472681C Additive for oil-based drilling fluids
09/15/2009	CA2460124C Friction reducing composition and method
09/15/2009	CA2404752C Top drive for casing connection
09/11/2009	WO2009111735A2 Shaker deck adjustment apparatus
09/11/2009	WO2009111730A2 Fluid distribution system
09/11/2009	WO2009109758A2 On-the-fly acid blender with sampling equipment
09/11/2009	WO2009109355A1 Rotary union
09/11/2009	WO2009055402A3 Tubing retrievable capillary bypass safety valve and capillary injection sleeve
09/11/2009	CA2717774A1 Shaker deck adjustment apparatus
09/11/2009	CA2717771A1 Fluid distribution system
09/11/2009	CA2717490A1 On-the-fly acid blender with sampling equipment

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