| 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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| 12/24/2008 | WO2008052058A3 Apparatus for radially expanding and plastically deforming a tubular member |
| 12/24/2008 | WO2008024868A3 Method of obtaining a treatment composition for improving the productivity of hydrocarbon producing wells |
| 12/24/2008 | WO2007082006A3 Apparatus for treating fluid streams |
| 12/24/2008 | EP2006486A2 Single trip well abandonment with dual permanent packers and perforating gun |
| 12/24/2008 | EP2004954A1 Pre-assembly of a subsea base and pipeline |
| 12/24/2008 | EP2004953A1 Method for optimising the production of a cluster of wells |
| 12/24/2008 | CN201170165Y Pendulum type portable energy-saving oil pumping machine |
| 12/24/2008 | CN201170164Y Sand-prevention and oil-draining type oil pump |
| 12/24/2008 | CN201170091Y Anti-pollution sand spraying device capable of re-washing |
| 12/24/2008 | CN201170090Y Low-frequency great current oil well pipe pillar crude oil heating device |
| 12/24/2008 | CN201170089Y Special-purpose adjustment controller for bridge type eccentric water distributing apparatus |
| 12/24/2008 | CN201170088Y Filtering components of V type accurate micro-seam self-cleaning sand control screen |
| 12/24/2008 | CN201170087Y Seam rush type sand control screen |
| 12/24/2008 | CN201170086Y Stainless steel corrugated filter sand tube |
| 12/24/2008 | CN201170085Y Single machine double-pumping energy-saving environment protection oil pumping machine |
| 12/24/2008 | CN201170071Y Pipe pillar support machine |
| 12/24/2008 | CN201168660Y Dosing atomizer |
| 12/24/2008 | CN101330955A A separator tank for separation of fluid comprising water, oil and gas, use of such a tank, and a method for separating a fluid including water, oil, and gas |
| 12/24/2008 | CN101330954A A gravity separator, and a method for separating a mixture containing water, oil, and gas |
| 12/24/2008 | CN101330953A A well fluid separator tank for separation of fluid comprising water, oil and gas, use of such a tank, and a method for separating a well fluid including water, oil, and gas |
| 12/24/2008 | CN101330952A A separator tank for separation of fluid comprising water, oil and gas |
| 12/24/2008 | CN101328880A Oil well pump |
| 12/24/2008 | CN101328803A Controlling a dynamic signal range in an optical time domain reflectometry |
| 12/24/2008 | CN101328799A Sand prevention clamp sand spraying device and its use method |
| 12/24/2008 | CN101328798A Method for extracting thick oil |
| 12/24/2008 | CN101328797A Remote monitoring apparatus of natural gas machine water injection system |
| 12/24/2008 | CN101328796A Environment protection type wax-proof anti-scaling viscosity reduction machine |
| 12/24/2008 | CN101328795A Inflow control device |
| 12/24/2008 | CN101328794A Switch type sand-prevention screening tube |
| 12/24/2008 | CN101328793A System and method for controlling erosion of components during well treatment |
| 12/24/2008 | CN101328792A System and method for creating a gravel pack |
| 12/24/2008 | CN101328791A Method and system for accessing subterranean deposits from the surface |
| 12/24/2008 | CN101328790A Mute chamber type natural gas electric generating set monitoring apparatus |
| 12/24/2008 | CN101328789A Closed-loop control system for automatically measuring oil well dynamic liquid level to change running speed of oil pumping machine |
| 12/24/2008 | CN100445562C Well drilling pump piston |
| 12/24/2008 | CN100445514C Layered steam distribution system for steam flooding and steam distribution method thereof |
| 12/24/2008 | CN100445240C Shaped charge for perforating gun having main body of explosive TATB and sensitive primer |
| 12/24/2008 | CA2692233A1 Flow restrictor coupling |
| 12/24/2008 | CA2691094A1 Chemical amendments for the stimulation of biogenic gas generation in deposits of carbonaceous material |
| 12/23/2008 | US7468469 Dissolved oxygen releasing compound |
| 12/23/2008 | US7468343 alkylxylene moiety in the alkylxylene sulfonate contains a high percentage of the 4-alkyl-1,2-dimethyl benzene isomer and attachment of the alkyl group to the xylene ring at positions higher than the 2-position on the alkyl carbon chain; for enhancing the recovery of oil from a subterranean reservoir |
| 12/23/2008 | US7467661 Downhole perforator assembly and method for use of same |
| 12/23/2008 | US7467660 Pumped carbon mining methane production process |
| 12/23/2008 | CA2613115C System for controlling the flow of well fluid |
| 12/23/2008 | CA2571913C Configurable wellhead system with permanent fracturing spool and method of use |
| 12/23/2008 | CA2550987C Gel mixing system |
| 12/23/2008 | CA2525065C Wellbores utilizing fiber optic-based sensors and operating devices |
| 12/23/2008 | CA2519144C Method of treating subterranean formations using mixed density proppants or sequential proppant stages |
| 12/23/2008 | CA2509868C Labyrinth seal for pumping system |
| 12/23/2008 | CA2499226C Multi-lateral wellbore systems and methods for forming same |
| 12/23/2008 | CA2490359C Helically wound expandable tubular insert |
| 12/23/2008 | CA2455518C Tubing expansion |
| 12/23/2008 | CA2426998C Environmentally acceptable fluid polymer suspension for oil field services |
| 12/21/2008 | CA2635526A1 Downhole jet pump |
| 12/18/2008 | WO2008154388A2 Use of low impact expansion to reduce flow friction |
| 12/18/2008 | WO2008153697A1 A process for producing hydrocarbon fluids combining in situ heating, a power plant and a gas plant |
| 12/18/2008 | WO2008153644A1 Apparatus for controlling the inflow of production fluids from a subterranean well |
| 12/18/2008 | WO2008153407A1 A gas-driven pumping device and a method for downhole pumping of a liquid in a well |
| 12/18/2008 | WO2008152599A2 Real time closed loop interpretation of tubing treatment systems and methods |
| 12/18/2008 | WO2008152376A1 System for monitoring an electrical submersible pump |
| 12/18/2008 | WO2008152357A1 Hydrocarbons |
| 12/18/2008 | WO2008152345A2 Multi-zone formation fluid evaluation system and method for use of same |
| 12/18/2008 | WO2008152289A2 Bottom-surface linking equipment including a flexible link between a floating support and the upper end of an under-surface rigid duct |
| 12/18/2008 | WO2008152288A2 Bottom-surface connection installation comprising an elastic damping device absorbing the tension of the top end of a rigid subsurface pipe |
| 12/18/2008 | WO2008130852A3 Christmas tree with internally positioned flowmeter |
| 12/18/2008 | WO2008106639A3 Improved system and method for stimulating multiple production zones in a wellbore |
| 12/18/2008 | WO2007143064A3 Stress distributing wellhead connector |
| 12/18/2008 | US20080311776 Well Completion Self Orienting Connector system |
| 12/18/2008 | US20080308276 Cutting elements for casing component drill out and subterranean drilling, earth boring drag bits and tools including same and methods of use |
| 12/18/2008 | US20080308274 Lower Completion Module |
| 12/18/2008 | US20080308273 System for Separating a Waste Material from a Produced Gas and Injecting the Waste Material into a Well |
| 12/18/2008 | US20080308272 Real Time Closed Loop Interpretation of Tubing Treatment Systems and Methods |
| 12/18/2008 | US20080308270 Devices and Methods for Utilizing Pressure Variations as an Energy Source |
| 12/18/2008 | US20080308267 Apparatus and methods for radially expanding a tubular member |
| 12/18/2008 | US20080308265 Pumping installation for a gas producing well |
| 12/18/2008 | US20080307951 Safety vent device |
| 12/18/2008 | US20080307877 Perforation Logging Tool and Method |
| 12/18/2008 | CA2693566A1 System for monitoring an electrical submersible pump |
| 12/18/2008 | CA2693435A1 Hydrocarbons |
| 12/18/2008 | CA2687892A1 Real time closed loop interpretation of tubing treatment systems and methods |
| 12/18/2008 | CA2686830A1 A process for producing hydrocarbon fluids combining in situ heating, a power plant and a gas plant |
| 12/17/2008 | EP2003285A1 Umbilical deployment system |
| 12/17/2008 | EP2001816A2 Sandstone having a modified wettability and a method for modifying the surface energy of sandstone |
| 12/17/2008 | EP1778813A4 Under-neutralized alkylxylene sulfonic acid composition for enhanced oil recovery processes |
| 12/17/2008 | EP1485567B1 Mono-diameter wellbore casing |
| 12/17/2008 | EP0907822B1 Method for expanding a steel tubing and well with such as tubing |
| 12/17/2008 | CN201166107Y Transmission device for mounting electric machine in lateral direction |
| 12/17/2008 | CN201166100Y Automatic tension device of oil pumping machine belt |
| 12/17/2008 | CN201166090Y Transmission gear for electric motor mounted in longitudinal direction |
| 12/17/2008 | CN201165868Y Intelligent adjustment eccentric water distributing apparatus |
| 12/17/2008 | CN201165867Y Through-hole perforating gun |
| 12/17/2008 | CN201165866Y Horizontal well division and combination extracting pipe column |
| 12/17/2008 | CN201165865Y Oil well thermal cycle oil extraction apparatus |
| 12/17/2008 | CN201165864Y Moveable balance block type oil pumping machine |
| 12/17/2008 | CN101326341A Particle control screen with depth filtration |
| 12/17/2008 | CN101326340A Profile control apparatus and method for production and injection wells |
| 12/17/2008 | CN101324185A Automatic switch double-guide mechanism of downhole measurement adjusting instrument |
| 12/17/2008 | CN101324184A Oil pumping machine well over ring air layered allocation pipe column tools and its allocation method |
| 12/17/2008 | CN101324183A Lower completion module |
| 12/17/2008 | CN101324182A Turntable type oil pumping machine and combined type energy-saving oil pumping machine unit |