| 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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| 01/09/2014 | US20140008078 Slip joint for downhole tubing |
| 01/09/2014 | US20140008077 Method and apparatus for evacuating hydrocarbons from a distressed well |
| 01/09/2014 | US20140008074 Fracturing System and Method for an Underground Formation |
| 01/09/2014 | US20140008073 Electrical and static fracturing of a reservoir |
| 01/09/2014 | US20140008072 Electrical fracturing of a reservoir |
| 01/09/2014 | US20140008071 Wellbore Servicing Assemblies and Methods of Using the Same |
| 01/09/2014 | US20140008070 Pulsating rotational flow for use in well operations |
| 01/09/2014 | US20140008069 Method and apparatus for actuating a differential pressure firing head |
| 01/09/2014 | US20140008067 Well Treatment Fluids and Methods Utilizing Nano-Particles |
| 01/09/2014 | US20140008066 Shunt Tube Assembly Entry Device |
| 01/09/2014 | US20140008064 Use of crude glycerol (cg) for production of formulations for mineral oil production and process for producing mineral oil from mineral oil deposits having inhomogeneous permeability |
| 01/09/2014 | US20140008063 Combustion thermal generator and systems and methods for enhanced oil recovery |
| 01/09/2014 | US20140008062 Formulation and method of use for exploitation and transport of heavy and extra heavy oil wells |
| 01/09/2014 | US20140008060 Flexibility of downhole fluid analyzer pump module |
| 01/09/2014 | US20140008058 Methods for increasing methanogenesis in subsurface reservoirs |
| 01/09/2014 | US20140008057 High frequency surface treatment methods and apparatus to extend downhole tool survivability |
| 01/09/2014 | US20140008052 Resettable Selective Locking Device |
| 01/09/2014 | CA2878359A1 A method and a system of recovering and processing a hydrocarbon mixture from a subterranean formation |
| 01/09/2014 | CA2878357A1 Method |
| 01/09/2014 | CA2878343A1 A system and a method of recovering and processing a hydrocarbon mixture from a subterranean formation |
| 01/09/2014 | CA2877608A1 Wellbore screen |
| 01/08/2014 | EP2682562A1 Systems and methods for monitoring a wellbore and actuating a downhole device |
| 01/08/2014 | EP2681412A2 Dispersing separated hydrocarbon gas into separated oil during surface well testing for improved oil mobility |
| 01/08/2014 | EP2681404A1 Expansion cone assembly for setting a liner hanger in a wellbore casing |
| 01/08/2014 | EP2681289A1 Interpolymer crosslinked gel and method of using |
| 01/08/2014 | CN203384374U Mechanical rotary sealing device for vertical type screw pump pumping unit |
| 01/08/2014 | CN203384017U Downhole fluid power oil pumping system |
| 01/08/2014 | CN203384016U Movable cylinder type blocking-resistant oil pump |
| 01/08/2014 | CN203383813U Coal underground gasification layer temperature measuring device |
| 01/08/2014 | CN203383809U Oil-gas separation measuring system easy to maintain and provided with wireless remote control function |
| 01/08/2014 | CN203383803U Gas injection point retreating type coal underground gasification system |
| 01/08/2014 | CN203383802U Air injection pipe column achieving oil extraction through fireflooding |
| 01/08/2014 | CN203383801U Combined type heating furnace for oil field |
| 01/08/2014 | CN203383800U Low-shearing allocation injector |
| 01/08/2014 | CN203383799U Adjusting type antifreeze casing constant pressure air bleed recovery unit |
| 01/08/2014 | CN203383798U Automatic decompression gun breech structure of oil gas shallow shaft |
| 01/08/2014 | CN203383797U Openhole horizontal well thermal recovery composite sieve pipe with large drift diameter, high strength and erosion resistance |
| 01/08/2014 | CN203383796U Ultra-deep water-oil-gas development system based on dry-type Christmas tree |
| 01/08/2014 | CN203383795U Novel oil well production device |
| 01/08/2014 | CN203383794U Linear underground oil pumping device |
| 01/08/2014 | CN203383793U Tower-type hydraulic pumping unit |
| 01/08/2014 | CN203383792U Balanced type one-machine multi-well energy saving hydraulic pumping unit |
| 01/08/2014 | CN203383791U Crown pulleys free from relative sliding with steel wire rope |
| 01/08/2014 | CN203383790U Pressure balance flexible polished rod pumping unit |
| 01/08/2014 | CN203383789U Tower-type pumping unit |
| 01/08/2014 | CN203383788U Flywheel energy-saving hydraulic pumping unit |
| 01/08/2014 | CN203383786U Closed-loop water distribution, ground watering and pressurization output integrated device |
| 01/08/2014 | CN203383784U Hydraulic reducing ball seat casing pipe sliding sleeve switching tool for staged fracturing |
| 01/08/2014 | CN203383745U One-way liquid inlet ball valve switch and horizontal well sectional release plugged water mining pipe column |
| 01/08/2014 | CN103502570A Additives for improving hydrocarbon recovery |
| 01/08/2014 | CN103502569A Additives for improving hydrocarbon recovery |
| 01/08/2014 | CN103502568A Systems and methods for separating oil and/or gas mixtures |
| 01/08/2014 | CN103502567A A device for directing the flow of a fluid using a centrifugal switch |
| 01/08/2014 | CN103502562A Device for measuring and controlling on-line viscosity at high pressure |
| 01/08/2014 | CN103502561A Downhole casing system |
| 01/08/2014 | CN103502387A Method for production of proppants |
| 01/08/2014 | CN103498785A Fireflooding oil well pump |
| 01/08/2014 | CN103498663A Method and device for determining swabbing technological parameters of sucker-rod pump lifting system |
| 01/08/2014 | CN103498657A Full-series large-capacity automatic ball installing and digital control staged fracturing ball injector |
| 01/08/2014 | CN103498656A Tongue-and-groove type multi-layer fracturing pipe column with equal drift diameters |
| 01/08/2014 | CN103498655A Micro powder silt fracturing method |
| 01/08/2014 | CN103498654A Petroleum oil-gas well pulse wave set control oil increasing device |
| 01/08/2014 | CN103498653A Method for increasing petroleum oil and gas well pulsation gas wave oil and gas through one suit of devices |
| 01/08/2014 | CN103498652A Method and device for exploiting natural gas hydrate in frozen soil area through injection of high-temperature steam |
| 01/08/2014 | CN103498651A Thickened oil steam huff-and-puff well pressure curve collecting and using method |
| 01/08/2014 | CN103498650A Method for improving yield of coal-bed gas well by achieving coal-bed surface gas reverse wetting |
| 01/08/2014 | CN103498649A Initiation safety device |
| 01/08/2014 | CN103498648A Method and device for exploiting aquo-complex through combination of pressure reducing technology and hydraulic fracturing technology |
| 01/08/2014 | CN103498647A Parameter adjusting method and system for improving system efficiency of rod-pumped well |
| 01/08/2014 | CN103498646A Sand-prevention and gas-prevention oil pumping device of fireflood well |
| 01/08/2014 | CN103497748A Channel blocking agent utilizing stratum residual polymer, and channel blocking method |
| 01/08/2014 | CN102392129B Method and system of in-situ ore leaching and leachate discharge of ion adsorption type ore |
| 01/08/2014 | CN102352740B Compound balanced long-stroke oil pumping machine |
| 01/08/2014 | CN102308058B Expandable casing with enhanced collapse resistance and sealing capabilit |
| 01/08/2014 | CN102191929B Vertical energy-saving pumping unit |
| 01/08/2014 | CN102168549B Device and method for measuring output liquid of coal bed methane well |
| 01/07/2014 | US8623793 Hydrophobically and cationically modified relative permeability modifiers and associated methods |
| 01/07/2014 | US8623221 Sand separator for petroleum and natural gas wells |
| 01/07/2014 | US8622149 Ballistic transfer delay device |
| 01/07/2014 | US8622140 Jet pump and multi-string tubing system for a fluid production system and method |
| 01/07/2014 | US8622138 Apparatus and method for recovering fluids from a well and/or injecting fluids into a well |
| 01/07/2014 | US8622136 Method and apparatus for controlling fluid flow using movable flow diverter assembly |
| 01/07/2014 | US8622135 Apparatus and methods for separating sand from well fracturing return water |
| 01/07/2014 | US8622134 Organic acid compositions and methods of use in subterranean operations |
| 01/07/2014 | US8622133 Resistive heater for in situ formation heating |
| 01/07/2014 | US8622132 Method of perforating a wellbore |
| 01/07/2014 | US8622129 Method of injecting carbon dioxide |
| 01/07/2014 | US8622127 Olefin reduction for in situ pyrolysis oil generation |
| 01/07/2014 | US8622125 Apparatus and methods for allowing fluid flow inside at least one screen and outside a pipe disposed in an well bore |
| 01/07/2014 | US8622124 Well treatment using electric submersible pumping system |
| 01/07/2014 | US8621979 Lubrication system for a reciprocating apparatus |
| 01/07/2014 | CA2788984C High efficiency fluid pumping apparatus and method |
| 01/07/2014 | CA2718439C Selectively angled perforating |
| 01/06/2014 | CA2782313A1 Methods for increasing methanogenesis in subsurface reservoirs |
| 01/05/2014 | CA2783103A1 Thermal system and process for producing steam from oilfield produced water |
| 01/04/2014 | CA2819952A1 Formulations based on crude glycerol (cg), cellulose ether and urea, process for producing mineral oil from mineral oil deposits having inhomogeneous permeability and process for producing these formulations |
| 01/03/2014 | WO2014004968A1 Environmentally friendly solvent systems/surfactant systems for drilling fluids |
| 01/03/2014 | WO2014004946A1 Wireline flow through remediation tool |
| 01/03/2014 | WO2014004815A1 Electromagnetic imaging of proppant in induced fractures |
| 01/03/2014 | WO2014004681A1 Spherical pellets containing common clay particulate material useful as a proppant in hydraulic fracturing of oil and gas wells |