| 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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| 09/02/2008 | CA2483812C Expander tool for use in a wellbore |
| 09/02/2008 | CA2449812C Completion apparatus and methods for use in wellbores |
| 09/02/2008 | CA2389732C Wellbore system having non-return valve |
| 08/28/2008 | WO2008103814A1 Process for recovering heavy oil using multiple effect evaporation |
| 08/28/2008 | WO2008103729A1 Active circuit protection of downhole electrical submersible pump monitoring gauges |
| 08/28/2008 | WO2008102170A1 Signal processing in downhole equipment |
| 08/28/2008 | WO2008079782A3 Production actuated mud flow back valve |
| 08/28/2008 | WO2008064233A9 Perforating gun assembly with auger to control wellbore fluid dynamics |
| 08/28/2008 | WO2008051827A3 Heating tar sands formations while controlling pressure |
| 08/28/2008 | WO2006100014A8 Probe end piece |
| 08/28/2008 | US20080203809 Producing Calcium Cyanide At A Mine Site Using Easily Transportable Starting Materials |
| 08/28/2008 | US20080203000 Air injection into the vadose zone to aerobically degrade volatile organic compounds in groundwater and inhibit subsurface landfill gas migration |
| 08/28/2008 | US20080202764 Consumable downhole tools |
| 08/28/2008 | US20080202763 Method to Optimize Production from a Gas-lifted Oil Well |
| 08/28/2008 | US20080202762 Fluid filtration tool |
| 08/28/2008 | US20080202759 Crosslinked acids comprising derivatized xanthan and subterranean acidizing applications |
| 08/28/2008 | US20080202758 Method for using and transporting a non-emulsified organic peroxide-containing composition |
| 08/28/2008 | US20080202757 Method of stimulating a coalbed methane well |
| 08/28/2008 | US20080202755 One trip system for circulating, perforating and treating |
| 08/28/2008 | US20080202754 Casing window milling assembly |
| 08/28/2008 | US20080202753 Method and apparatus for expanding and separating tubulars in a wellbore |
| 08/28/2008 | US20080202750 Proppant materials and methods |
| 08/28/2008 | US20080202749 Aqueous colloids comprising polydiallyldimethylammonium chloride, sodium lauryl sulfate, and laury alcohol for well completion fluids; for subterranean fracturing/drilling; coacervate gels having excellent shear viscosities |
| 08/28/2008 | US20080202747 Methods of marking a zone of a wellbore for localizing the source of produced particulate |
| 08/28/2008 | US20080202746 Plunger Lift Controller and Method |
| 08/28/2008 | US20080202743 Downhole flow reversal apparatus |
| 08/28/2008 | US20080202325 Process of improving a gun arming efficiency |
| 08/28/2008 | CA2677881A1 Signal processing in downhole equipment |
| 08/28/2008 | CA2677855A1 Wellbore treatment fluid |
| 08/28/2008 | CA2623571A1 Plunger lift controller and method |
| 08/28/2008 | CA2622735A1 Soft stop for maximum riser tensioner stroke |
| 08/28/2008 | CA2579970A1 Method of using and transporting a non-emulsified organic peroxide-containing composition |
| 08/27/2008 | EP1960633A1 Improvements in and relating to hydrocarbon recovery from a hydrocarbon reservoir |
| 08/27/2008 | EP1456502B1 Use of charged amphiphilic statistic polymers for thickening phases comprising giant micelles of surfactants and aqueous compositions comprising same |
| 08/27/2008 | CN201106552Y Directional closing-by-force type oil well pump standing valve |
| 08/27/2008 | CN201106551Y Multipurpose rapid balance-adjusting crank handle |
| 08/27/2008 | CN201106550Y Deep well coagulation-prevention oil well pump |
| 08/27/2008 | CN201106549Y Hydraulic embedding-disk brake type single screw oil well pump surface drive |
| 08/27/2008 | CN201106444Y Liquid-doping sand prevention apparatus |
| 08/27/2008 | CN201106443Y Controllable sandblaster being convenient to disjoint |
| 08/27/2008 | CN201106442Y Controllable disjointing multilayer separate-layer fracturing tubular pile |
| 08/27/2008 | CN201106441Y Three segment separate-infusing tubular pile for horizontal well water-injection |
| 08/27/2008 | CN201106440Y Individual well supercharging gas recovery apparatus |
| 08/27/2008 | CN201106439Y Orientation mechanism for high-precision perforating |
| 08/27/2008 | CN201106438Y Pendulum balance intelligent control oil pump |
| 08/27/2008 | CN201106437Y Apparatus for producing oil well and oil jacket |
| 08/27/2008 | CN201106433Y Hanger type thermal-picking casing head of casing |
| 08/27/2008 | CN201106417Y Polished rod eye for preventing polished rod from breaking dropping |
| 08/27/2008 | CN101253307A Control system for seabed processing system |
| 08/27/2008 | CN101253306A Methods and apparatus for completing a well |
| 08/27/2008 | CN101251005A Method for gasification of coal mine down-hole coalbed |
| 08/27/2008 | CN101251004A Construction tubular pile for fracturing gas |
| 08/27/2008 | CN101251003A Process for fracturing energetic gas |
| 08/27/2008 | CN101251002A Device for continuously adding medicine into oil well down-hole liquid |
| 08/27/2008 | CN101251001A Process of improving a gun arming efficiency |
| 08/27/2008 | CN101251000A Gravel packing sand-prevention experimental device within pipe for simulating down-hole actual behavior |
| 08/27/2008 | CN101250999A Terra-imitating borehole and manufacture method thereof |
| 08/27/2008 | CN101250998A Adjuster for crankshaft balance weight of girder-like oil pump |
| 08/27/2008 | CN101250997A Anti-stop pullker |
| 08/27/2008 | CN101250996A Oil-gas field multi-well short distance concatenation gas collection technique |
| 08/27/2008 | CN101250995A Middle-low pressure gas collection technique |
| 08/27/2008 | CN101250984A Well-washing sand prevention integrated technique tubular pile |
| 08/27/2008 | CN100414072C Gasification process by combining underground gasification furnaces |
| 08/27/2008 | CN100414071C Construction method for compound blind holes of perforating gun |
| 08/27/2008 | CN100414070C Automatic torque-changing pumping unit |
| 08/26/2008 | US7417011 modifying the permeability to water of a subterranean formation comprising injecting into the formation aqueous alkyl or an alkylene oxide branched polyhydroxyetheramine or a salts |
| 08/26/2008 | US7417010 Process for treating an oil well |
| 08/26/2008 | US7417009 Paraffin inhibitors |
| 08/26/2008 | US7416027 Adjustable expansion cone assembly |
| 08/26/2008 | US7416026 Apparatus for changing flowbore fluid temperature |
| 08/26/2008 | US7416022 In-situ method of producing oil shale, on-shore and off-shore |
| 08/26/2008 | CA2570526C Degradable additive for viscoelastic surfactant based fluid system |
| 08/26/2008 | CA2507732C Methods of completing a subterranean well and associated apparatus |
| 08/26/2008 | CA2495342C Use of distributed temperature sensors during wellbore treatments |
| 08/26/2008 | CA2490506C Expandable tubular connection |
| 08/26/2008 | CA2447677C Process for the recovery of oil from a natural oil reservoir |
| 08/22/2008 | CA2619167A1 Process of improving a gun arming efficiency |
| 08/21/2008 | WO2008100644A1 Mechanically coupled screen and method |
| 08/21/2008 | WO2008100592A1 Subterannean water production, transfer and injection method and apparatus |
| 08/21/2008 | WO2008100570A1 Locking cap for subsea tree |
| 08/21/2008 | WO2008100436A1 Multicomponent viscoelastic surfactant fluid and method of using as a fracturing fluid |
| 08/21/2008 | WO2008100429A1 Three-phase separation downhole |
| 08/21/2008 | WO2008100176A1 Method for developing hydrocarbon accumulations |
| 08/21/2008 | WO2008099154A1 Methods of completing wells for controlling water and particulate production |
| 08/21/2008 | WO2008098850A1 Method and device for the in-situ extraction of a hydrocarbon-containing substance, while reducing the viscosity thereof, from an underground deposit |
| 08/21/2008 | WO2008098359A1 Method and apparatus for obtaining heavy oil samples from a reservoir sample |
| 08/21/2008 | WO2008079978A3 System and method for cleaning drill cuttings with degassed water |
| 08/21/2008 | WO2008079777A3 Material sensitive downhole flow control device |
| 08/21/2008 | WO2008055188A8 System and method for performing oilfield simulation operations |
| 08/21/2008 | WO2007018844A8 Spontaneous superficial fluid recovery from hydrocarbon formations |
| 08/21/2008 | US20080200353 Aqueous erucyl amidopropyl betaine and an acid or salt, preferably sulfonic acids or aromatic carboxylic acids, chlorides of potassium, ammonium, calcium or tetramethylammonium, or calcium bromide; thickener for suspending particles during subterranean excavation |
| 08/21/2008 | US20080200352 Degradable Material Assisted Diversion or Isolation |
| 08/21/2008 | US20080199257 Vertical Installation of an Elongated Process Unit |
| 08/21/2008 | US20080196903 Shoe for Wellbore Iining Tubing |
| 08/21/2008 | US20080196896 Methods and apparatus for fiber-based diversion |
| 08/21/2008 | US20080196895 Method to Enhance Proppant Conductivity from Hydraulically Fractured Wells |
| 08/21/2008 | US20080196894 Process for Recovering Heavy Oil Using Multiple Effect Evaporation |
| 08/21/2008 | US20080196893 Process for oil recovery using mixed surfactant composition |
| 08/21/2008 | US20080196892 Enzyme enhanced oil recovery (EEOR) for waterflooding operations |
| 08/21/2008 | US20080196890 Magnetic power transmission devices for oilfield applications |