| 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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| 10/16/2013 | CN203239293U Oil pipe union anti-disengaging device and oil pipe union |
| 10/16/2013 | CN203239287U Steam distributing valve and subdivision steam injection process pipe column |
| 10/16/2013 | CN203239284U Synchronous separated mining reversing valve |
| 10/16/2013 | CN203239250U Polished rod gripper for rod-pumped well |
| 10/16/2013 | CN203239241U Tubular column steering controller and tubular column steering control system |
| 10/16/2013 | CN203239240U Variable-permeability horizontal well segregated completion string |
| 10/16/2013 | CN203238214U Resin precoated sand |
| 10/16/2013 | CN103354858A Apparatus and methods for tracking the location of fracturing fluid in a subterranean formation |
| 10/16/2013 | CN103352832A Protected type hydraulic piston pump |
| 10/16/2013 | CN103352686A Fast and efficient gas-water separating apparatus at well mouth of coalbed methane extraction well |
| 10/16/2013 | CN103352685A Gas injection point retreating type gas injection device used in underground gasification system |
| 10/16/2013 | CN103352684A Chemical and physical combined explosion fracturing device and manufacturing method thereof |
| 10/16/2013 | CN103352683A Method of formation protection while performing downhole operation |
| 10/16/2013 | CN103352682A Method for improving gas extraction rate in coal seams with pulse electromagnetic waves |
| 10/16/2013 | CN103352681A Heavy-layer thickened oil reservoir vertical well synchronous infusion-extraction production method and device |
| 10/16/2013 | CN103352680A Foam huff and puff sand discharging experiment device and method based on integration of well hole and oil reservoir |
| 10/16/2013 | CN103352679A Device and method for filling foam drainage agent automatically under shaft |
| 10/16/2013 | CN103352678A Polymer injection water injection layering selection continuous adjustable injection allocation device |
| 10/16/2013 | CN103352677A Under-pit petroleum sand-preventing filter tube |
| 10/16/2013 | CN103352676A Device and method for exploiting submarine combustible ice |
| 10/16/2013 | CN103352674A Upper-layer adjustable plugging device |
| 10/16/2013 | CN103352169A Seamless steel pipe for perforating gun barrel body and thermal treatment method of seamless steel pipe |
| 10/16/2013 | CN102618243B Coagulation-reducing viscosity-reducing agent for high-coagulation thickened oil |
| 10/16/2013 | CN102251753B Continuous oil pipe and fracturing pipe column hanging and uncoupling device |
| 10/16/2013 | CN101842550B Method for forming at least one roughly plane inclusion |
| 10/16/2013 | CN101688441B Producing resources using heated fluid injection |
| 10/16/2013 | CN101663460B Oil well completion tool having severable tubings string barrier disc |
| 10/16/2013 | CN101619653B Expanded non-bonded mesh well screen system and manufacture method |
| 10/16/2013 | CN101328795B 流入控制装置 Flow control device |
| 10/15/2013 | US8560098 System for remotely monitoring a site for anticipated failure and maintenance with a plurality of controls |
| 10/15/2013 | US8560097 Computer assisted method for remotely monitoring a site for anticipated failure and maintenance with a plurality of controls |
| 10/15/2013 | US8560096 Method for remotely monitoring a site for anticipated failure and maintenance with a plurality of controls |
| 10/15/2013 | US8555981 Riser weak link |
| 10/15/2013 | US8555980 Oil well blowout containment device |
| 10/15/2013 | US8555979 Blowout preventer with a bernoulli effect suck-down valve |
| 10/15/2013 | US8555977 Remotely operated underwater redirection plenum chamber for spill response |
| 10/15/2013 | US8555975 Exit assembly with a fluid director for inducing and impeding rotational flow of a fluid |
| 10/15/2013 | US8555974 Coiled tubing well intervention system and method |
| 10/15/2013 | US8555971 Treating tar sands formations with dolomite |
| 10/15/2013 | US8555970 Accelerating the start-up phase for a steam assisted gravity drainage operation using radio frequency or microwave radiation |
| 10/15/2013 | US8555958 Pipeless steam assisted gravity drainage system and method |
| 10/15/2013 | US8555957 Crude oil production equipment |
| 10/15/2013 | US8555955 One trip multiple string section milling of subterranean tubulars |
| 10/15/2013 | US8555764 Perforating gun assembly and method for controlling wellbore pressure regimes during perforating |
| 10/15/2013 | CA2795417C Method of treating subterranean formations using mixed density proppants or sequential proppant stages |
| 10/15/2013 | CA2769699C Methods of gravel packing long interval wells |
| 10/15/2013 | CA2757962C Processing a hydrocarbon stream using supercritical water |
| 10/15/2013 | CA2737410C Heat recovery for bitumen froth treatment plant integration with sealed closed-loop cooling circuit |
| 10/15/2013 | CA2685587C Methods for maximizing second fracture length |
| 10/15/2013 | CA2644213C Method of treating subterranean formations using mixed density proppants or sequential proppant stages |
| 10/15/2013 | CA2577940C Method for treating underground formations or cavities with microgels |
| 10/15/2013 | CA2570057C Screen for controlling inflow of solid particles in a wellbore |
| 10/15/2013 | CA2559797C Paraffin inhibitors |
| 10/13/2013 | CA2775138A1 Hydrodynamic pulse tool |
| 10/10/2013 | WO2013151985A2 Methods for determining wettability from nmr |
| 10/10/2013 | WO2013151658A1 Well tools selectively responsive to magnetic patterns |
| 10/10/2013 | WO2013151604A1 Explosive assembly and method |
| 10/10/2013 | WO2013151551A1 Solid chemical well treatment |
| 10/10/2013 | WO2013150473A1 A separator apparatus for gas-water-oil mixtures, and separation process |
| 10/10/2013 | WO2013112191A3 System and method for producing carbon dioxide for use in hydrocarbon recovery |
| 10/10/2013 | WO2013106055A3 Esp thrust module with enhanced lubrication and temperature dissipation |
| 10/10/2013 | WO2012170522A3 Proppant pillar placement in a fracture with high solid content fluid |
| 10/10/2013 | WO2012149017A3 Subsea hydrocarbon containment apparatus |
| 10/10/2013 | US20130264066 Hybrid fluid lift valve for commingling gas production |
| 10/10/2013 | US20130264064 Technical System, Method and Uses for Dosing of at Least One Liquid Treatment Means into Injection Water to an Injection Well |
| 10/10/2013 | US20130264061 Method for treating hydrocarbon-bearing formations with fluorinated amine |
| 10/10/2013 | US20130264059 Use of peracetic acid/hydrogen peroxide and peroxide-reducing agents for treatment of drilling fluids, frac fluids, flowback water and disposal water |
| 10/10/2013 | US20130264058 Treatment methods for nahcolitic oil shale formations with fractures |
| 10/10/2013 | US20130264057 Wellbore Servicing Fluid System and Methods of Use |
| 10/10/2013 | US20130264056 Multizone Frac System |
| 10/10/2013 | US20130264055 System and method for low damage fracturing |
| 10/10/2013 | US20130264054 Multi-Interval Wellbore Treatment Method |
| 10/10/2013 | US20130264052 Stimulation of Biogenic Gas Generation in Deposits of Carbonaceous Material |
| 10/10/2013 | CA2812095A1 Selection process for positioning wells to be drilled for an oil deposit operation |
| 10/09/2013 | EP2647844A1 Method of pumping fluid |
| 10/09/2013 | EP2647789A2 Methods and apparatus for cementing wells |
| 10/09/2013 | EP2646647A2 Fracture characterisation |
| 10/09/2013 | EP2646646A1 Method and apparatus for thermally treating an oil reservoir |
| 10/09/2013 | CN203232260U Self-inductance oil pumping unit frequency conversion parameter-adjusting control device |
| 10/09/2013 | CN203230405U Spiral gas and sand anchor capable of isolating three phases |
| 10/09/2013 | CN203230404U Gathering and transportation pry device for gas injection-production of salt-cavern gas storage |
| 10/09/2013 | CN203230403U Mechanical isolation fracturing pipe column capable of conducting layering and eight-layer fracturing through one step and being released |
| 10/09/2013 | CN203230402U Anti-freezing constant pressure gas production automatic recovery device |
| 10/09/2013 | CN203230401U Sleeve gas lift composite lifting well completion pipe string for sucker rod pump |
| 10/09/2013 | CN203230400U Split type multifunctional dosing device for oil field |
| 10/09/2013 | CN203230399U Movable combined multifunctional dosing device for oil field |
| 10/09/2013 | CN203230398U Device for achieving multiple-well synchronous injection by means of water injection well modified injectant flooding |
| 10/09/2013 | CN203230397U Diluting device of large thick oil pump |
| 10/09/2013 | CN203230396U Movable underground throttler |
| 10/09/2013 | CN203230395U Intelligent downhole throttle device |
| 10/09/2013 | CN203230394U Horse head load unloader of rod pumped well |
| 10/09/2013 | CN203230393U Electric submersible pump tubular column for coiled tubing |
| 10/09/2013 | CN203230392U Vortex balance type plunger for water drainage gas recovery of gas well |
| 10/09/2013 | CN203230391U Multilevel combined jet pump liquid discharging tubular column |
| 10/09/2013 | CN203230390U Quick belt adjusting device for oil pumping unit |
| 10/09/2013 | CN203230347U Temperature control blow-off petroleum pipeline |
| 10/09/2013 | CN103348098A 水力压裂 Hydraulic Fracturing |
| 10/09/2013 | CN103348097A Varying pore size in well screen |
| 10/09/2013 | CN103348095A System for lining wellbore |
| 10/09/2013 | CN103348094A Expandable packer with expansion induced axially movable support feature |