| 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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| 02/17/2009 | US7490665 Variable frequency temperature limited heaters |
| 02/17/2009 | US7490664 Drilling, perforating and formation analysis |
| 02/17/2009 | US7490663 Thread fatigue relief for tool joint |
| 02/17/2009 | CA2409129C Separating a hydrocarbon production stream into its oil, water and particle constituents |
| 02/17/2009 | CA2406794C Methods for improving oil production |
| 02/17/2009 | CA2394912C Environmentally friendly method for generating energy from natural gas |
| 02/12/2009 | WO2009020891A1 Perforating gun |
| 02/12/2009 | WO2009020829A1 Delayed breaker |
| 02/12/2009 | WO2009020827A2 Method for altering the stress state of a formation and/or a tubular |
| 02/12/2009 | WO2009020396A1 Stealth orifice |
| 02/12/2009 | WO2009019461A1 Method and apparatus for isolating a jet forming aperture in a well bore servicing tool |
| 02/12/2009 | WO2009019197A2 Device for in situ extraction of a substance comprising hydrocarbons |
| 02/12/2009 | WO2009018883A1 Drainage method for multilayer reservoirs |
| 02/12/2009 | WO2008157279A4 Safety vent device |
| 02/12/2009 | WO2007112199A3 Enhanced hydrocarbon recovery by vaporizing solvents in oil sand formations |
| 02/12/2009 | US20090042748 Method of Acidizing Sandstone Formations |
| 02/12/2009 | US20090038855 Variable Density Fluids and Methods of Use in Subterranean Formations |
| 02/12/2009 | US20090038846 Perforating gun |
| 02/12/2009 | US20090038806 Accumulation and recycling of captured gas in recovery of subterranean fluids |
| 02/12/2009 | US20090038805 Control module for subsea equipment |
| 02/12/2009 | US20090038804 Subsurface Safety Valve for Electric Subsea Tree |
| 02/12/2009 | US20090038803 Pumping system for injecting a mixture of liquids via a well into a subterranean formation |
| 02/12/2009 | US20090038799 System, Method, and Apparatus for Combined Fracturing Treatment and Scale Inhibition |
| 02/12/2009 | US20090038798 Composition and Method For Making A Proppant |
| 02/12/2009 | US20090038797 Proppants With Carbide and/or Nitride Phases |
| 02/12/2009 | US20090038795 Hydrocarbon Recovery From Impermeable Oil Shales Using Sets of Fluid-Heated Fractures |
| 02/12/2009 | US20090038792 System and method for producing fluids from a subterranean formation |
| 02/12/2009 | US20090038788 Chemical delivery system for plunger lift |
| 02/12/2009 | US20090038138 Protective compression and tension sleeves for threaded connections for radially expandable tubular members |
| 02/12/2009 | CA2695463A1 Flow control system having an isolation device for preventing gas interference during downhole liquid removal operations |
| 02/12/2009 | CA2695246A1 Device for in situ extraction of a substance comprising hydrocarbons |
| 02/12/2009 | CA2694970A1 Delayed breaker |
| 02/12/2009 | CA2694906A1 Stealth orifice |
| 02/12/2009 | CA2694822A1 Method for altering the stress state of a formation and/or a tubular |
| 02/11/2009 | EP2022936A1 Solvent assisted method to mobilize viscous crude oil |
| 02/11/2009 | EP2022935A1 Drainage method for multilayer reservoirs |
| 02/11/2009 | EP2022934A2 Method of evaluating a production scheme of an underground reservoir, taking into account uncertainties |
| 02/11/2009 | EP2021579A2 Method and apparatus for capture and sequester of carbon dioxide and extraction of energy from large land masses during and after extraction of hydrocarbon fuels or contaminants using energy and critical fluids |
| 02/11/2009 | EP2021578A2 Perforating methods and devices for high wellbore pressure applications |
| 02/11/2009 | EP2021575A1 Procedure and device for the optimal utilization of carbon resources such as oil fields, oil shales, oil sands, coal, and co2 |
| 02/11/2009 | EP2021278A1 A process for the manufacture of carbon disulphide |
| 02/11/2009 | CN201193608Y Screw pump for deviated and horizontal wells |
| 02/11/2009 | CN201193602Y Composite selective mining pump with rod pump and electric submersible pump |
| 02/11/2009 | CN201193517Y Dirty oil and water collecting and reinjecting device |
| 02/11/2009 | CN201193516Y Well head auto drug-adding and pouring device |
| 02/11/2009 | CN201193515Y Three-component power balance drug-adding device |
| 02/11/2009 | CN201193514Y Auto constant current high-pressure water-distributing device |
| 02/11/2009 | CN201193513Y Filter screen for inflatable sieve tube |
| 02/11/2009 | CN201193512Y Long stroke beam-pumping unit with underground balancing drum |
| 02/11/2009 | CN201193511Y Torque-changing energy saving oil pumping machine with flexible sucker rod |
| 02/11/2009 | CN201193510Y Balance block moving device for pumping unit |
| 02/11/2009 | CN201193508Y High temperature heat pump pipe heated system |
| 02/11/2009 | CN201193504Y Big-diameter sliding bush switch |
| 02/11/2009 | CN101365766A Method and apparatus for treating water to reduce boiler scale formation |
| 02/11/2009 | CN101363436A Novel energy-conserving hydraulic pumping unit |
| 02/11/2009 | CN101363313A Hollow distributor capable of testing pressure |
| 02/11/2009 | CN100460709C Speed reducer of submersible pump with centripetal axis |
| 02/11/2009 | CN100460678C Antiscaling alloy oil sucking pump |
| 02/11/2009 | CN100460626C Ultrasonic crude-oil, gas and sand separator |
| 02/11/2009 | CN100460625C Method for directly dispersing polymer dry powder by hydraulic jet |
| 02/10/2009 | US7488705 Oilwell sealant compositions comprising alkali swellable latex |
| 02/10/2009 | US7488704 Fluid loss prevention; exhibits minimal difference between downhole equivalent circulating and surface densities; free of organophilic clays |
| 02/10/2009 | US7487846 Electrically operated drilling method |
| 02/10/2009 | US7487838 Inverted electrical submersible pump completion to maintain fluid segregation and ensure motor cooling in dual-stream well |
| 02/10/2009 | US7487831 Downhole surge pressure reduction and filtering apparatus |
| 02/10/2009 | US7487827 Propellant cartridge with restrictor plugs for fracturing wells |
| 02/10/2009 | CA2790208A1 Removing effects of near surface geology from surface-to-borehole electromagnetic data |
| 02/10/2009 | CA2638115A1 Accumulation and recycling of captured gas in recovery of subterranean fluids |
| 02/10/2009 | CA2526019C Enhancing a flow through a well pump |
| 02/10/2009 | CA2451873C Apparatus and method for orientating a downhole control tool |
| 02/10/2009 | CA2398545C Production optimization methodology for multilayer commingled reservoirs using commingled reservoir production performance data and production logging information |
| 02/10/2009 | CA2360626C Method for fracturing subterranean formations |
| 02/05/2009 | WO2009018560A2 Thrust and intake chamber for pump |
| 02/05/2009 | WO2009018536A2 Methods of increasing fracture resistance in low permeability formations |
| 02/05/2009 | WO2009018462A1 Valuing future information under uncertainty |
| 02/05/2009 | WO2009018450A1 Method for managing production from a hydrocarbon producing reservoir in real-time |
| 02/05/2009 | WO2009018376A1 Method and system to obtain a compositional model of produced fluids using separator discharge data analysis |
| 02/05/2009 | WO2009018273A1 Reclamation of halide-contaminated formate brines |
| 02/05/2009 | WO2009018019A2 Drainage of heavy oil reservoir via horizontal wellbore |
| 02/05/2009 | WO2009018015A1 Injection plane initiation in a well |
| 02/05/2009 | WO2009017939A1 Tubular expander |
| 02/05/2009 | WO2009017810A1 Biological enhancement of hydrocarbon extraction |
| 02/05/2009 | WO2009017468A1 Spontaneous supercritical fluid recovery and refining of hydrocarbons from hydrocarbon-bearing formations applying morphing fuel cells gas in situ |
| 02/05/2009 | WO2009016948A1 Promotion of methane hydrate decomposition and methane gas collecting system |
| 02/05/2009 | WO2009016386A1 Methods and systems for evaluating and treating previously-fractured subterranean formations |
| 02/05/2009 | WO2009016280A2 Method of recovering oil or bitumen by injection of a recovery fluid and of a diverting agent |
| 02/05/2009 | WO2009016140A2 Method and apparatus for cooling a gaseous hydrocarbon stream |
| 02/05/2009 | WO2008152345A3 Multi-zone formation fluid evaluation system and method for use of same |
| 02/05/2009 | WO2008109216A3 High performance foams for unloading gas wells |
| 02/05/2009 | US20090037112 Methods and systems for evaluating and treating previously-fractured subterranean formations |
| 02/05/2009 | US20090036332 tertiary oil recovery, introducing aqueous solution of a dissolved ammonia compound, and an alcohol into the hydrocarbon formation; cost effective recovery of residual oil trapped in the reservoir; surfactant-free |
| 02/05/2009 | US20090032264 Subsea pumping system |
| 02/05/2009 | US20090032263 Flow control system utilizing an isolation device positioned uphole of a liquid removal device |
| 02/05/2009 | US20090032262 Flow control system having an isolation device for preventing gas interference during downhole liquid removal operations |
| 02/05/2009 | US20090032260 Injection plane initiation in a well |
| 02/05/2009 | US20090032258 Openhole perforating |
| 02/05/2009 | US20090032255 Method and apparatus for isolating a jet forming aperture in a well bore servicing tool |
| 02/05/2009 | US20090032254 Composition and Method For Making A Proppant |
| 02/05/2009 | US20090032253 Proppant comprising template sphere having void within interior of sphere and continuous sintered shell around outer surface, where shell comprises ceramic material or oxide thereof that withstands sintering at 700 degrees C for 30 minutes in oxidizing environment; subterranean formations; crush strength |
| 02/05/2009 | US20090032251 Drainage of heavy oil reservoir via horizontal wellbore |