Patents
Sitemap › E21 - Earth or rock drilling; Mining › E21B - Earth or rock drilling; Obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells › E21B 43 - Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
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)
08/2012
08/22/2012CA2748994A1 Downhole hydraulic jetting assembly, and method for stimulating a production wellbore
08/22/2012CA2739411A1 Horizontal frac ball injector
08/21/2012US8247356 Zirconium-based cross-linking composition for use with high pH polymer solutions
08/21/2012US8245785 Method and apparatus for lateral well drilling with biased length adjusting casing cutter
08/21/2012US8245782 Tool and method of performing rigless sand control in multiple zones
08/21/2012US8245778 Fluid control apparatus and methods for production and injection wells
08/21/2012US8245770 Method for perforating failure-prone formations
08/21/2012CA2715588C Additive for cementing wells
08/21/2012CA2703437C Aggregating compositions, modified particulate metal-oxides, modified formation surfaces, and methods for making and using same
08/21/2012CA2689433C Perforation strategy for heterogeneous proppant placement in hydraulic fracturing
08/21/2012CA2686472C Riser disconnect and support mechanism
08/21/2012CA2683103C Method and apparatus for expanding and separating tubulars in a wellbore
08/21/2012CA2675298C Compositions and methods for breaking a viscosity increasing polymer at very low temperature used in downhole well applications
08/21/2012CA2643872C Method of treating subterranean formations by in-situ hydrolysis of organic acid esters
08/21/2012CA2555403C Connection system for subsea flow interface equipment
08/21/2012CA2547028C Method of assembling two hermetic threaded tubular joints comprising a local and initial added thickness, by means of plastic expansion
08/21/2012CA2540481C Expandable wellbore assembly
08/21/2012CA2524506C Expansion device for expanding a pipe
08/21/2012CA2523872C Proppant for hydraulic fracturing of oil and gas wells and process for decreasing or eliminating "flow-back" effect in oil and gas wells
08/21/2012CA2507413C Method of installing a tubular assembly in a wellbore
08/18/2012CA2732287A1 A process for achieving improved friction reduction in hydraulic fracturing and coiled tubing applications in high salinity conditions
08/16/2012WO2012109514A1 Reservoir treatment
08/16/2012WO2012109511A2 Submerged void filling
08/16/2012WO2012109397A2 Completion assembly
08/16/2012WO2012109352A2 Three-dimensional modeling of parameters for oilfield drilling
08/16/2012WO2012109098A1 Method and apparatus for removing water from a natural gas well
08/16/2012WO2012109054A2 A sequential fully implicit well model for reservoir simulation
08/16/2012WO2012107075A1 Method and apparatus for drilling and lining a wellbore
08/16/2012WO2012106804A1 Wellbore injection system
08/16/2012WO2012078305A3 Stackable multi-barrier system and method
08/16/2012WO2012071208A3 Entry guide formation on a well liner hanger
08/16/2012WO2012067769A3 Triaxial linear induction antenna array for increased heavy oil recovery
08/16/2012WO2012067768A3 Twinaxial linear induction antenna array for increased heavy oil recovery
08/16/2012WO2012058144A3 Hydrate deposit inhibition with surface-chemical combination
08/16/2012WO2012000492A3 Device for preventing the passage of a liquid, use of said device, blowout auxiliary device, and method for use
08/16/2012US20120205307 Fluid treatment apparatus and method
08/16/2012US20120205293 Manufacture of microspheres using a hydrocyclone
08/16/2012US20120205127 Selective displacement of water in pressure communication with a hydrocarbon reservoir
08/16/2012US20120205126 Method and apparatus for removing water from a natural gas well
08/16/2012US20120205124 System and method to expand tubulars below restrictions
08/16/2012US20120205119 Pump control device, oil well with device and method
08/16/2012US20120205112 High Pressure Multistage Centrifugal Pump For Fracturing Hydrocarbon Reserves
08/16/2012US20120205111 Reinforced frac tubing head
08/16/2012US20120205110 Wellbore Servicing Compositions and Methods of Making and Using Same
08/16/2012US20120205109 Heater and method for recovering hydrocarbons from underground deposits
08/16/2012US20120205108 Apparatus and method for abrasive perforating and cleanout using a multi-cycle open/close valve
08/16/2012US20120205102 Well Treatment
08/16/2012US20120205101 Method for making resin-coated proppants and a proppant
08/16/2012US20120205100 Non-Spherical Well Treating Particulates and Methods of Using the Same
08/16/2012US20120205099 Process for mineral oil production from mineral oil deposits with high deposit temperature
08/16/2012US20120205098 Equipment feeding polymers into a fluid flow
08/16/2012US20120205097 Method of Enhance the Production Capacity of an Oil Well
08/16/2012US20120205096 Method for displacement of water from a porous and permeable formation
08/16/2012CA2827111A1 Submerged void filling
08/16/2012CA2826854A1 Three-dimensional modeling of parameters for oilfield drilling
08/16/2012CA2825997A1 Method and apparatus for drilling and lining a wellbore
08/16/2012CA2825364A1 System and method for servicing a wellbore
08/16/2012CA2825355A1 A method for individually servicing a plurality of zones of a subterranean formation
08/15/2012EP2486316A1 A tool for a horizontal connecting device
08/15/2012EP2486315A1 Horizontal connecting device
08/15/2012EP2486229A2 Apparatuses and methods of manufacturing oilfield machines
08/15/2012EP2486228A2 Method and apparatus for drilling a probabilistic approach
08/15/2012EP2486224A2 Method for hydrocarbon removal and recovery from drill cuttings
08/15/2012EP1929097B1 Wellbore apparatus and method for completion, production and injection
08/15/2012EP1838804B1 Methods for controlling migration of particulates in a subterranean formation
08/15/2012EP1790853B1 A nc reciprocating immersible oil pump
08/15/2012EP1601904B1 Method for producing a threaded tubular connection sealed by radial expansion
08/15/2012CN202383797U Automatic alarm device for halt of pumping unit
08/15/2012CN202383787U Brake anti-theft alarm device for pumping unit
08/15/2012CN202381067U Skid-mounted on-site oil-water separation and cut water back mixing device
08/15/2012CN202381066U Gas-liquid separating metering device
08/15/2012CN202381065U Porous sealed chamber sand blower
08/15/2012CN202381064U Dedicated tool integrated with laminating and fracturing
08/15/2012CN202381063U Anti-erosion throttle sand blower
08/15/2012CN202381062U Three-dimensional physical simulation system for heavy oil horizontal well steam drive
08/15/2012CN202381061U Integrated produced-water reinjection device
08/15/2012CN202381060U Three-layered separate small-distance water injection string
08/15/2012CN202381059U Sealing sleeve assembly and tubular column assembly of oil and gas well
08/15/2012CN202381058U Adjustable oil nozzle
08/15/2012CN202381057U Simple casing gas recovery device
08/15/2012CN202381056U Uniflow valve for oil production by layers
08/15/2012CN202381055U Anti-slip-down slip type underground throttle capable of knocking off air nozzle
08/15/2012CN202381054U Energy containing bullet support for oil-gas well perforation
08/15/2012CN202381053U Rapid joint for tubing convey perforating gun
08/15/2012CN202381052U Centering type sand blasting perforator
08/15/2012CN202381051U Energy-collecting compound perforation tubular column
08/15/2012CN202381050U Antirust downhole string of pumping well and rod string
08/15/2012CN202381049U Tower frame type oil pumping machine
08/15/2012CN202381048U Anti-load-missing low stroke frequency cylinder guide slot cam twin-well pumping unit
08/15/2012CN202381047U Autooscillation oil extraction device for oil field pumping well
08/15/2012CN202381046U Negative pressure flow string for oilfield pumping well
08/15/2012CN202381045U Balance automatic regulating device of beam-pumping unit
08/15/2012CN202380994U Beam hanger of oil pumping unit
08/15/2012CN202376860U Tangential inlet type gas supersonic swirl flow separator
08/15/2012CN202376845U Fine self-cleaning water-injection filter device
08/15/2012CN102639812A Subsurface reservoir analysis based on fluid injection
08/15/2012CN102639811A Inflow control in a production casing
08/15/2012CN102639810A Systems and methods for initiating annular obstruction in a subsurface well
08/15/2012CN102639809A Systems and methods for initiating annular obstruction in a subsurface well
08/15/2012CN102639212A Stabilization and remote recovery of acid gas fractions from sour wellsite gas
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