| 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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| 08/16/2007 | CA2641582A1 Multifunctional multipolymeric surfactants for oil and bitumen recovery and other applications |
| 08/16/2007 | CA2641464A1 Automatic control line insertion tools and system |
| 08/16/2007 | CA2641404A1 Fluid injection device |
| 08/16/2007 | CA2641401A1 Fluid injection device |
| 08/16/2007 | CA2640475A1 Synergistic surfactant compositions for unloading fluids from oil and gas wells |
| 08/15/2007 | EP1817474A2 Method and apparatus for jet-fluid abrasive cutting |
| 08/15/2007 | EP1387037B1 Hydromechanical well perforator |
| 08/15/2007 | CN2934661Y Oil well screw pump mechanical transmission ground driving device |
| 08/15/2007 | CN2934659Y Hydraulic piston type oil pumping system |
| 08/15/2007 | CN2934656Y Screw pump oil production device for down-hole |
| 08/15/2007 | CN2934564Y Vertical type multiple phase flow separation and commutation device for oil, water and gas |
| 08/15/2007 | CN2934563Y Well port continuous quantitative degasing device |
| 08/15/2007 | CN2934562Y DC revolved force horizontal well pumping unit |
| 08/15/2007 | CN2934554Y Water well operation vehicle |
| 08/15/2007 | CN1332121C Method of producing hydrocarbon gas and production wells |
| 08/15/2007 | CN1332120C Throwing type fracturing equipment |
| 08/15/2007 | CN1332119C Tower type hydraulic long stroke well pumping unit |
| 08/15/2007 | CN1332118C Intelligent oil pumping unit with externally installed variable-speed motorized pulley |
| 08/15/2007 | CN101016936A Working position adjusting device for large-scale generator |
| 08/15/2007 | CN101016898A Straight line driving reciprocating rotation screw pump |
| 08/15/2007 | CN101016841A Method for exploiting natural gas hydrates and device thereof |
| 08/15/2007 | CN101016836A Method and system for accessing subterranean deposits from the surface and tools therefor |
| 08/15/2007 | CN101016835A Thermal production well filling vapor and nitrogen foam profile control technique |
| 08/15/2007 | CN101016834A Straight line driving screw pump oil production system |
| 08/15/2007 | CN101016833A Energy-storage skid-mounted intelligent hydraulic pumping unit |
| 08/15/2007 | CN101016832A Loose-leaf directly pulling oil pumping unit |
| 08/14/2007 | US7255791 In situ method and apparatus for biodegradation of alkyl ethers and tertiary butyl alcohol |
| 08/14/2007 | US7255180 Modular drill system requiring limited field assembly and limited equipment support |
| 08/14/2007 | US7255177 Tubing expansion |
| 08/14/2007 | US7255176 Method for reducing diameter reduction near ends of expanded tubulars |
| 08/14/2007 | US7255175 Fluid recovery system and method |
| 08/14/2007 | US7255171 Method and apparatus for manufacturing an expandable slotted tube |
| 08/14/2007 | US7255169 Methods of creating high porosity propped fractures |
| 08/14/2007 | US7255168 Lightweight composite particulates and methods of using such particulates in subterranean applications |
| 08/14/2007 | US7255167 Three phase downhole separator process |
| 08/14/2007 | CA2526837C Downhole surge pressure reduction and filtering apparatus |
| 08/14/2007 | CA2440375C Tube manufacture |
| 08/14/2007 | CA2425058C Expandable float shoe and associated methods |
| 08/14/2007 | CA2418186C Esp pump for gassy wells |
| 08/14/2007 | CA2326422C System and method for pumping and heating viscous fluids in a wellbore |
| 08/14/2007 | CA2323007C Methods and viscosified compositions for treating wells |
| 08/14/2007 | CA2289286C Tubular junction for tubing pump |
| 08/14/2007 | CA2273568C A method of installing a casing in a well and apparatus therefor |
| 08/14/2007 | CA2261517C Method of enhancing oil recovery from an oil bearing formation through secondary fluid displacement |
| 08/14/2007 | CA2255119C Device for limiting the bending radius of a flexible duct |
| 08/09/2007 | WO2007089944A2 Method for recovery of stranded oil |
| 08/09/2007 | WO2007089933A1 Barrier orifice valve for gas lift |
| 08/09/2007 | WO2007089713A2 Biogenic fuel gas generation in geologic hydrocarbon deposits |
| 08/09/2007 | WO2006072069A3 Thermoset nanocomposite particles, processing for their production, and their use in oil and natural gas drilling applications |
| 08/09/2007 | US20070184988 Wellbore fluids containing additives for removing a filter cake and methods of using the same |
| 08/09/2007 | US20070184987 Additive for increasing the density of an oil-based fluid and fluid comprising such additive |
| 08/09/2007 | US20070181312 Barrier orifice valve for gas lift |
| 08/09/2007 | US20070181311 Wellhead plunger inspection arrangement |
| 08/09/2007 | US20070181308 Method and apparatus for single-run formation of multiple lateral passages from a wellbore |
| 08/09/2007 | US20070181307 Synergistic surfactant compositions for unloading fluids from oil and gas wells |
| 08/09/2007 | US20070181304 Method and Apparatus for Completing a Horizontal Well |
| 08/09/2007 | US20070181303 Method and apparatus for assembling stackable gun system inside a well bore |
| 08/09/2007 | US20070181302 Method for the fracture stimulation of a subterranean formation having a wellbore by using thermoset polymer nanocomposite particles as proppants, where said particles are prepared by using formulations containing reactive ingredients obtained or derived from renewable feedstocks |
| 08/09/2007 | US20070181301 Method and system for extraction of hydrocarbons from oil shale |
| 08/09/2007 | US20070181300 System and method for preparing near-surface heavy oil for extraction using microbial degradation |
| 08/09/2007 | US20070181299 Methods of Improving Heavy Oil Production |
| 08/09/2007 | US20070181297 Downhole well pump with bottom standoff |
| 08/09/2007 | CA2677178A1 Hydraulic oil well pumping apparatus |
| 08/09/2007 | CA2643395A1 Method for recovery of stranded oil |
| 08/09/2007 | CA2640437A1 The use of phosphorous and nitrogen containing formulations in secondary oil recovery operations |
| 08/09/2007 | CA2603891A1 Biogenic fuel gas generation in geologic hydrocarbon deposits |
| 08/09/2007 | CA2577684A1 Thermal recovery of petroleum crude oil from tar sands and oil shale deposits |
| 08/09/2007 | CA2577680A1 Method for sagd recovery of heavy oil |
| 08/08/2007 | EP1816314A1 Carbon dioxide enriched flue gas injection for hydrocarbon recovery |
| 08/08/2007 | EP1815101A1 Methods and apparatus for drilling, completing and configuring u-tube boreholes |
| 08/08/2007 | EP1606492B1 A system and process for pumping multiphase fluids |
| 08/08/2007 | CN2932775Y Oil field oil extractor electricity-saving control cabinet |
| 08/08/2007 | CN2931857Y Energy storage matching equipment |
| 08/08/2007 | CN2931800Y Drill pump fluid oil magnetic adsorption device |
| 08/08/2007 | CN2931782Y High gas oil ratio oil-gas separation device |
| 08/08/2007 | CN2931781Y Automatic control gas-distributing container |
| 08/08/2007 | CN2931780Y Down-hole oil-water separator |
| 08/08/2007 | CN2931779Y Spraying and decompression device |
| 08/08/2007 | CN2931778Y Multifunctional sand protection pipe of oil and gas well |
| 08/08/2007 | CN2931777Y Intelligent wide belt type pumping unit |
| 08/08/2007 | CN2931776Y Drum-type pumping unit |
| 08/08/2007 | CN1330849C Installation for the separation of fluids |
| 08/08/2007 | CN1330848C Acid thickeners and uses thereof |
| 08/08/2007 | CN1330847C Method for treating subterranean formation |
| 08/08/2007 | CN1330846C Viscosity reduction of viscoelastic surfactant based fluids |
| 08/08/2007 | CN1330845C Drilling method and tools and the use thereof |
| 08/08/2007 | CN101014681A Clay inhibitor for the drilling industry |
| 08/08/2007 | CN101012824A Hydraulic driving oil pumping device |
| 08/08/2007 | CN101012823A Hydraulic oil pumping device |
| 08/08/2007 | CN101012747A Gas-liquid ratio control method of rock core displacement test |
| 08/08/2007 | CN101012744A Nitrogen foam adjusting-actuating segment plug injection technique |
| 08/08/2007 | CN101012743A Loose sand oil accumulation replacement sand prevention method |
| 08/08/2007 | CN101012742A End-to-end jointing water soluble exploitation method of mirabilite mine |
| 08/08/2007 | CN101012741A Method for lowing energy-consumption and increasing output by changing elasticity modulus of pumping rod and special apparatus |
| 08/08/2007 | CN101012740A Hydraulic oil pumping device |
| 08/08/2007 | CN101012737A Switch of output increasing, water searching and blocking method for oil well in production |
| 08/07/2007 | US7252700 Mobile gas separator system and method for treating dirty gas at the well site of a stimulated gas well |
| 08/07/2007 | US7252148 Plunger actuated pumping system |
| 08/07/2007 | US7252146 Methods for preparing slurries of coated particulates |
| 08/07/2007 | US7252142 Annular isolators for expandable tubulars in wellbores |