| Patents for E21B 43 - Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells (64,186) |
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| 12/15/2005 | WO2005119002A1 Continuous positive flow backflash prevention system |
| 12/15/2005 | WO2005119000A1 High-velocity discharge equalizing system and method |
| 12/15/2005 | US20050274545 Pressure Relief nozzle |
| 12/15/2005 | US20050274527 Apparatus and method for dewatering low pressure gradient gas wells |
| 12/15/2005 | US20050274523 Introducing a first fluid to create a segment extending through the subterranean formation; and introducing a second fluid with a different viscosity and density to create a finger or channel within the fluid segment; at least one of the fluids contains a proppant; minimized proppant flowback |
| 12/15/2005 | US20050274522 Limited entry multiple fracture and frac-pack placement in liner completions using liner fracturing tool |
| 12/15/2005 | US20050274516 Formation Consolidation Process |
| 12/15/2005 | US20050274515 Method and system for producing gas and liquid in a subterranean well |
| 12/15/2005 | US20050274513 System and method for determining downhole conditions |
| 12/15/2005 | US20050274510 Electroconductive proppant compositions and related methods |
| 12/15/2005 | US20050274509 System for reducing adhesion and cohesion between non metallic bailers and side wall of wells |
| 12/15/2005 | CA2565161A1 High-velocity discharge equalizing system and method |
| 12/14/2005 | EP1604095A2 Propped fracture with high effective surface area |
| 12/14/2005 | EP1604093A2 Method and apparatus for drilling a borehole with a borehole liner |
| 12/14/2005 | EP1604092A2 Method for drilling and completing wells |
| 12/14/2005 | EP1327053B1 Method and pumping out means for improving the supply of water to a source or a water procurement well |
| 12/14/2005 | EP1276965B1 A method for treating a hydrocarbon containing formation |
| 12/14/2005 | EP1173655B1 Ribbed sealing element and method of use |
| 12/14/2005 | CN2746121Y Monitoring device for oil well production |
| 12/14/2005 | CN2746120Y Oil drainage settling storager |
| 12/14/2005 | CN2746119Y Beam-pumping unit |
| 12/14/2005 | CN1708631A Annular isolators for expandable tubulars in wellbores |
| 12/14/2005 | CN1708630A Once-through well completion |
| 12/14/2005 | CN1231656C Method of passing fracture of underground gasification furnace |
| 12/14/2005 | CN1231655C Microbial oil extraction method for prolonging period of validity by use of microbe to drive oil |
| 12/14/2005 | CN1231654C Rod free hydraulic oil pumping system and its droven hydraulic oil -well pump |
| 12/13/2005 | US6973974 Valves for use in wells |
| 12/13/2005 | US6973973 Gas operated pump for hydrocarbon wells |
| 12/13/2005 | US6973968 by dissociating methane hydrate deposits in-situ wherein an oxidizer fluid and a supply of fuel, both at a pressure higher than that of the methane hydrate deposit are delivered downhole and combusted, with heat of reaction dissociating the methane |
| 12/13/2005 | US6973967 hydrocarbons within a coal formation are converted in situ within the formation to yield a mixture of relatively high quality hydrocarbon products, hydrogen, and other products; the coal is heated to to temperatures that allow pyrolysis |
| 12/13/2005 | CA2359450C Expandable tubing and method |
| 12/13/2005 | CA2338431C Apparatus and method for open hole gravel packing |
| 12/13/2005 | CA2236944C Flow control apparatus and methods |
| 12/13/2005 | CA2176125C A method for determining the reservoir properties of a solid carbonaceous subterranean formation |
| 12/13/2005 | CA2151092C Firing head connected between a coiled tubing and a perforating gun adapted to move freely within a tubing string and actuated by fluid pressure in the coiled tubing |
| 12/09/2005 | CA2748560A1 Water treatment method for heavy oil production |
| 12/09/2005 | CA2748443A1 Water treatment method for heavy oil production |
| 12/09/2005 | CA2740060A1 Water treatment method for heavy oil production using calcium sulfate seed slurry evaporation |
| 12/09/2005 | CA2508635A1 Pressure relief nozzles |
| 12/09/2005 | CA2470562A1 Firing head with detonation gas release activation |
| 12/08/2005 | WO2005116451A1 Pump for evacuation of viscous liquids |
| 12/08/2005 | WO2005116400A1 A pumping unit |
| 12/08/2005 | WO2005116394A1 A method and a device for expanding a body under overpressure |
| 12/08/2005 | WO2005094961A8 A process for the treatment of fluids originating from submarine oil fields |
| 12/08/2005 | WO2005065334B1 Multiple azimuth control of vertical hydraulic fractures in unconsolidated and weakly cemented sediments |
| 12/08/2005 | WO2004096940A8 Water block removal with surfactant based hydrocarbonaceous liquid system |
| 12/08/2005 | US20050273303 Method of generating a conforming hybrid grid in three dimensions of a heterogeneous formation crossed by one or more geometric discontinuities in order to carry out simulations |
| 12/08/2005 | US20050273296 Neural network model for electric submersible pump system |
| 12/08/2005 | US20050272613 Method and materials for hydraulic fracturing of wells |
| 12/08/2005 | US20050272612 Galactomannan based well treating fluids |
| 12/08/2005 | US20050272611 Nanocomposite particulates and methods of using nanocomposite particulates |
| 12/08/2005 | US20050271476 Seafloor/surface connecting installation for a submarine pipeline which is connected to a riser by means of at least one elbow pipe element that is supported by a base |
| 12/08/2005 | US20050269889 Frameless switched reluctance motor and application as a top drive for a rotary pump |
| 12/08/2005 | US20050269313 Temperature limited heaters with high power factors |
| 12/08/2005 | US20050269137 Separation of evolved gases from drilling fluids in a drilling operation |
| 12/08/2005 | US20050269135 Continuous positive flow backflash prevention system |
| 12/08/2005 | US20050269134 Underbalanced drilling method and apparatus |
| 12/08/2005 | US20050269108 Expandable sealing apparatus |
| 12/08/2005 | US20050269107 Mono-diameter wellbore casing |
| 12/08/2005 | US20050269106 Apparatus and methods for operating a tool in a wellbore |
| 12/08/2005 | US20050269105 Apparatus for facilitating the connection of tubulars using a top drive |
| 12/08/2005 | US20050269102 Tieback connector |
| 12/08/2005 | US20050269101 Methods of treating subterranean formations using low-molecular-weight fluids |
| 12/08/2005 | US20050269100 Methods of treating subterranean formations using low-molecular-weight fluids |
| 12/08/2005 | US20050269099 Methods of treating subterranean formations using low-molecular-weight fluids |
| 12/08/2005 | US20050269098 Method of increasing productivity and recovery of wells in oil and gas fields |
| 12/08/2005 | US20050269097 System and method for the mitigation of paraffin wax deposition from crude oil by using ultrasonic waves |
| 12/08/2005 | US20050269096 Method and apparatus for blow-out prevention in subsea drilling/completion systems |
| 12/08/2005 | US20050269095 Inhibiting reflux in a heated well of an in situ conversion system |
| 12/08/2005 | US20050269094 Triaxial temperature limited heater |
| 12/08/2005 | US20050269093 Variable frequency temperature limited heaters |
| 12/08/2005 | US20050269092 Vacuum pumping of conductor-in-conduit heaters |
| 12/08/2005 | US20050269091 Reducing viscosity of oil for production from a hydrocarbon containing formation |
| 12/08/2005 | US20050269090 Temperature limited heaters with thermally conductive fluid used to heat subsurface formations |
| 12/08/2005 | US20050269089 Temperature limited heaters using modulated DC power |
| 12/08/2005 | US20050269088 Inhibiting effects of sloughing in wellbores |
| 12/08/2005 | US20050269085 Method for sealing lost circulation zones |
| 12/08/2005 | US20050269083 Onboard navigation system for downhole tool |
| 12/08/2005 | US20050269077 Start-up of temperature limited heaters using direct current (DC) |
| 12/08/2005 | US20050269075 High-velocity discharge equalizing system and method |
| 12/08/2005 | US20050269073 Wellbore anchor tool |
| 12/07/2005 | EP1601904A1 Method for producing a threaded tubular connection sealed by radial expansion |
| 12/07/2005 | EP1468164B1 Riser for connection between a vessel and a point at the seabed |
| 12/07/2005 | EP1440221B1 Combination well kick off and gas lift booster unit |
| 12/07/2005 | EP1373682B1 Power connection to and/or control of wellhead trees |
| 12/07/2005 | EP1327050B1 Cement shoe assembly for monobore well |
| 12/07/2005 | EP1278940B1 Method and system for sea-based handling of hydrocarbons |
| 12/07/2005 | EP1064452B1 Formation testing apparatus and method |
| 12/07/2005 | CN2744829Y Sand prevention and scale control device |
| 12/06/2005 | US6972274 Method of improving the permeability of an underground petroleum-containing formation |
| 12/06/2005 | US6971856 Plunger for well casings and other tubulars |
| 12/06/2005 | US6971685 Multi-point high pressure seal for expandable tubular connections |
| 12/06/2005 | US6971450 Completion apparatus and methods for use in wellbores |
| 12/01/2005 | WO2005114029A1 Metal sleeve seal for threaded connections |
| 12/01/2005 | WO2005113934A2 Installation tool for oil and grease seals |
| 12/01/2005 | WO2005113190A1 Method and apparatus for sealing radially expanded joints |
| 12/01/2005 | WO2005112580A2 System stabilizers and performance enhancers for aqueous fluids gelled with viscoelastic surfactants |
| 12/01/2005 | WO2005112574A2 Flying lead connector and method for making subsea connections |
| 12/01/2005 | WO2005076803A3 Apparatus for changing wellbore fluid temperature |
| 12/01/2005 | US20050267718 Method for field scale production optimization by enhancing the allocation of well flow rates |