| 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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| 02/26/2009 | WO2009024544A2 Method for virtual metering of injection wells and allocation and control of multi-zonal injection wells |
| 02/26/2009 | WO2009009648A3 Systems and methods for separating hydrocarbons from water |
| 02/26/2009 | WO2008142228A3 Method of supplying fuel to a heavy crude production unit, corresponding heavy crude production process and corresponding heavy crude production unit |
| 02/26/2009 | US20090054274 Formation of Heteroatom Containing Derivatives of Paraffins |
| 02/26/2009 | US20090050549 Microporous Diffusion Apparatus |
| 02/26/2009 | US20090050333 Dual Control Line System and Method for Operating Surface Controlled Sub-Surface Safety Valve in a Well |
| 02/26/2009 | US20090050331 Method For Enhanced Recovery Of Oil From Oil Reservoirs |
| 02/26/2009 | US20090050325 Enzyme enhanced oil recovery (EEOR) for near wellboretreatment of oil and gas with greater than 50% barrel of oil equivalent (BOE) gas production |
| 02/26/2009 | US20090050324 System and method of in-situ shale oil recovery utilizing an intense down-hole solar beam |
| 02/26/2009 | US20090050323 Method for Retaining Debris in a Perforating Apparatus |
| 02/26/2009 | US20090050322 Wireless perforating gun initiation |
| 02/26/2009 | US20090050321 Oil well perforators |
| 02/26/2009 | US20090050320 Water flooding method |
| 02/26/2009 | US20090050319 Downhole burners for in situ conversion of organic-rich rock formations |
| 02/26/2009 | US20090050318 Method and apparatus for in-situ radiofrequency assisted gravity drainage of oil (ragd) |
| 02/26/2009 | US20090050317 Method for improving hydrocarbon-water compatibility in a subsurface hydrocarbon-contaminated site |
| 02/26/2009 | US20090050316 Methods for improved hydrocarbon and water compatibility |
| 02/26/2009 | US20090050315 injecting water and reducing agent into oil well; reduced aromatic hydrocarbons, viscosity; reducing agents |
| 02/26/2009 | US20090050313 Viscous Oil Inflow Control Device For Equalizing Screen Flow |
| 02/26/2009 | US20090050312 Flow control system having a downhole check valve selectively operable from a surface of a well |
| 02/26/2009 | US20090050311 Well servicing combination unit |
| 02/26/2009 | DE102007040606B3 Verfahren und Vorrichtung zur in situ-Förderung von Bitumen oder Schwerstöl Method and apparatus for in situ extraction of bitumen or heavy oil |
| 02/26/2009 | CA2695554A1 Enhanced cooling for downhole motors |
| 02/26/2009 | CA2694014A1 Method for virtual metering of injection wells and allocation and control of multi-zonal injection wells |
| 02/26/2009 | CA2692996A1 Method for controlling production and downhole pressures of a well with multiple subsurface zones and/or branches |
| 02/25/2009 | EP2027362A1 Liquified petroleum gas fracturing system |
| 02/25/2009 | EP2027360A1 Methods and devices for treating multiple-interval well bores |
| 02/25/2009 | EP1530668B1 Self-conforming well screen |
| 02/25/2009 | CN201198754Y Split stream matched pouring machine |
| 02/25/2009 | CN201198753Y Natural gas hydrate mining simulating device containing free gas layer |
| 02/25/2009 | CN201198752Y Electric machine mounting platform of oil pumping machine |
| 02/25/2009 | CN101375016A Flexible well completions |
| 02/25/2009 | CN101372889A Novel horizontal well sand preventing well completion structure |
| 02/25/2009 | CN101372888A Tool for gravel fillup and bypass gravel fillup |
| 02/25/2009 | CN101372887A Conditioning ferrous alloys into cracking susceptible and fragmentable elements for use in a well |
| 02/24/2009 | US7494957 Energized fluids and methods of use thereof |
| 02/24/2009 | US7493959 Joining tubular members |
| 02/24/2009 | US7493958 Technique and apparatus for multiple zone perforating |
| 02/24/2009 | US7493955 Well treating compositions for slow release of treatment agents and methods of using the same |
| 02/24/2009 | US7493953 Oilfield enhanced in situ combustion process |
| 02/24/2009 | US7493952 toe-to-heel in situ combustion; utilizing water, steam or nonoxidizing CO2 gas which acts as gaseous solvent is injected into the reservoir; reducing the tendency of oxygen to enter the horizontal wellbore, enabled higher oxidizing gas injection rates into the reservoir, higher oil recovery; upgrading |
| 02/24/2009 | US7493951 Under-balanced directional drilling system |
| 02/24/2009 | US7493947 Water shut off method and apparatus |
| 02/19/2009 | WO2009023853A1 Flapper gas lift valve |
| 02/19/2009 | WO2009023836A1 Hybrid hydraulic-electric ram pumping unit with downstroke energy recovery |
| 02/19/2009 | WO2009023806A1 Viscometer for downhole pumping |
| 02/19/2009 | WO2009023665A2 Insulated bearings for downhole motors |
| 02/19/2009 | WO2009023611A2 Multi-position valve for fracturing and sand control and associated completion methods |
| 02/19/2009 | WO2009023589A1 Accumulation and recycling of captured gas in recovery of subterranean fluids |
| 02/19/2009 | WO2009023542A2 Combined seal head and pump intake for electrical submersible pump |
| 02/19/2009 | WO2009022935A1 Device for low-frequency acoustic effect on perforation area and oil- bearing bed in bottom-hole zone |
| 02/19/2009 | WO2008151293A3 System and method for performing oilfield production operations |
| 02/19/2009 | WO2008131771A3 Cladding method and expansion tool |
| 02/19/2009 | US20090044954 Method for Transporting Multiphase Fluids |
| 02/19/2009 | US20090044953 Viscometer For Downhole Pumping |
| 02/19/2009 | US20090044952 Stationary slick line pumping method |
| 02/19/2009 | US20090044951 Apparatus and Methods to Control Fluid Flow in a Downhole Tool |
| 02/19/2009 | US20090044945 Method for hydraulic fracturing of subterranean formation |
| 02/19/2009 | US20090044944 Multi-Position Valve for Fracturing and Sand Control and Associated Completion Methods |
| 02/19/2009 | US20090044943 Method and system for extraction of hydrocarbons from oil shale |
| 02/19/2009 | US20090044942 Cellulosic Particulates and Method of Manufacture and Use Thereof |
| 02/19/2009 | US20090044941 Spherical Ceramic Proppant for Hydraulic Fracturing of Oil or Gas Wells, and a Process for Forming Cavities in the Surface of Spherical Ceramic Proppants |
| 02/19/2009 | US20090044940 Method for CAGD recovery of heavy oil |
| 02/19/2009 | US20090044937 Remote actuation of downhole tools using fluid pressure from surface |
| 02/19/2009 | US20090044936 Horizontal Filter Well System And Method Of Operating Same |
| 02/19/2009 | CA2702196A1 Hybrid hydraulic-electric ram pumping unit with downstroke energy recovery |
| 02/19/2009 | CA2695447A1 Combined seal head and pump intake for electrical submersible pump |
| 02/19/2009 | CA2694151A1 Treatment fluids comprising clarified xanthan and associated methods |
| 02/18/2009 | EP2025862A1 Method for enhancing recovery of heavy crude oil by in-situ combustion in the presence of strong aquifers |
| 02/18/2009 | EP2024603A2 Systems and methods for producing oil and/or gas |
| 02/18/2009 | EP2024601A1 A method and apparatus for patching a well by hydroforming a tubular metal patch, and a patch for this purpose |
| 02/18/2009 | EP2024576A1 Pump device |
| 02/18/2009 | EP1573170B1 Method and system for circulating fluid in a well system |
| 02/18/2009 | CN201196076Y Ultrasound flow meter for oil field high pressure water injection |
| 02/18/2009 | CN201196072Y Oil field effluent oil recovery and pretreatment apparatus |
| 02/18/2009 | CN201196071Y Non-well type underground coal gasification ignition simulating device |
| 02/18/2009 | CN201196070Y Enclosed heat carrier circulating heating apparatus of nesting hollow rod |
| 02/18/2009 | CN201196069Y Filter of separated injection well |
| 02/18/2009 | CN201196068Y Assembling type reducing nozzle tip |
| 02/18/2009 | CN201196067Y Double-row sand stainless steel screen casing |
| 02/18/2009 | CN201196066Y Adjustment device for rope suspension device of oil pumping machine |
| 02/18/2009 | CN201196065Y Offset adjustment tool of oil pumping machine |
| 02/18/2009 | CN201196062Y Gas lift valve |
| 02/18/2009 | CN201196028Y Composite silicate heat preservation structure used on thick oil thermal production steam pipe |
| 02/18/2009 | CN201196021Y Gas-tight oil layer well washing protector |
| 02/18/2009 | CN201195674Y Mechanical-synchronization rope guide |
| 02/18/2009 | CN201195239Y High-efficiency apparatus for assembling filtering sleeve and base tube |
| 02/18/2009 | CN101371005A Hydraulic fracturing method for stratum |
| 02/18/2009 | CN101369152A Safety monitoring early warning and safety management system and method for oil gas extracting, gathering and transporting operation |
| 02/18/2009 | CN101368479A High-speed gravel filling |
| 02/18/2009 | CN101368478A Four-link type oil pumping machine |
| 02/18/2009 | CN101368477A Oil-water interface inspection and control method |
| 02/18/2009 | CN101368476A Injection-production column jacket anti-blocking protection device |
| 02/18/2009 | CN101368475A Double-pumping rod type oil pumping machine |
| 02/17/2009 | US7491682 Method of inhibiting or controlling formation of inorganic scales |
| 02/17/2009 | US7490676 Method and system for tubing a borehole in single diameter |
| 02/17/2009 | US7490675 Methods and apparatus for optimizing well production |
| 02/17/2009 | US7490671 Pipe separator with improved separation |
| 02/17/2009 | US7490669 Multi-zone, single trip well completion system and methods of use |
| 02/17/2009 | US7490667 Proppants with soluble composite coatings |