| 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) |
|---|
| 01/03/2013 | WO2012082081A3 A method for obtaining diagnostics and control of the pumping process of rod pumped oil and gas wells and devices for the method execution. |
| 01/03/2013 | WO2012002817A3 Valve assembly |
| 01/03/2013 | US20130000979 Perforating Gun Assembly and Method for Controlling Wellbore Pressure Regimes During Perforating |
| 01/03/2013 | US20130000924 Expandable liner system |
| 01/03/2013 | US20130000919 Oil well control system |
| 01/03/2013 | US20130000918 Flow module placement between a subsea tree and a tubing hanger spool |
| 01/03/2013 | US20130000916 Recyclable cleanout fluids |
| 01/03/2013 | US20130000915 Compositions and processes for fracturing subterranean formations |
| 01/03/2013 | US20130000914 Through Tubing Expandable Frac Sleeve with Removable Barrier |
| 01/03/2013 | US20130000913 Methods for Stimulating Oil or Gas Production Using a Viscosified Aqueous Fluid with a Chelating Agent to Remove Calcium Carbonate and Similar Materials from the Matrix of a Formation or a Proppant Pack |
| 01/03/2013 | US20130000912 Altering the interface of hydrocarbon-coated surfaces |
| 01/03/2013 | US20130000911 Gellable Treatment Fluids Comprising Quaternary Ammonium Salt Gel-Time Modifiers and Methods for Use Thereof |
| 01/03/2013 | US20130000908 System and Method For Fracturing Rock In Tight Reservoirs |
| 01/03/2013 | US20130000902 Methods for Stimulating Oil or Gas Production Using a Viscosified Aqueous Fluid with a Chelating Agent to Remove Calcium Carbonate and Similar Materials from the Matrix of a Formation or a Proppant Pack |
| 01/03/2013 | US20130000901 Methods for Stimulating Oil or Gas Production Using a Viscosified Aqueous Fluid with a Chelating Agent to Remove Calcium Carbonate and Similar Materials from the Matrix of a Formation or a Proppant Pack |
| 01/03/2013 | US20130000899 One Trip Toe-to-Heel Gravel Pack and Liner Cementing Assembly |
| 01/03/2013 | US20130000898 Dual Mobilizing Agents In Basal Planer Gravity Drainage |
| 01/03/2013 | US20130000897 Recycling co2 in heavy oil or bitumen production |
| 01/03/2013 | US20130000896 Basal Planer Gravity Drainage |
| 01/03/2013 | US20130000895 Simulating injection treatments from multiple wells |
| 01/03/2013 | US20130000894 Solvent injection recovery process |
| 01/03/2013 | US20130000889 Securing Layers in a Well Screen Assembly |
| 01/03/2013 | US20130000883 Hydrocarbon recovery |
| 01/03/2013 | US20130000472 Multi-layered perforating gun using expandable tubulars |
| 01/03/2013 | US20130000349 Apparatus and methods for the recovery of hydrocarbonaceous and additional products from oil shale and sands via multi-stage condensation |
| 01/03/2013 | CA2840463A1 Gas lift kickover system |
| 01/03/2013 | CA2840417A1 Well pump with seal section having a labyrinth flow path in a metal bellows |
| 01/03/2013 | CA2840326A1 Gas injection for managed pressure drilling |
| 01/03/2013 | CA2839763A1 Electromagnetically heated thermal flowmeter for wellbore fluids |
| 01/03/2013 | CA2839518A1 Recycling co2 in heavy oil or bitumen production |
| 01/03/2013 | CA2832054A1 Flow control screen assembly having remotely disabled reverse flow control capability |
| 01/03/2013 | CA2818872A1 Extraction of oil from oil sand |
| 01/03/2013 | CA2805295A1 Method for removing contaminants from wastewater in hydraulic fracturing process |
| 01/02/2013 | EP2540958A2 Multiple sectioned wire-wrapped screens |
| 01/02/2013 | EP2540955A1 Gas lift kickover system |
| 01/02/2013 | EP2539994A2 Cooling system for a multistage electric motor |
| 01/02/2013 | EP2539538A1 Shunt isolation valve |
| 01/02/2013 | EP2539537A2 Tubular assembly |
| 01/02/2013 | CN202646244U Hydraulic system for oil pumping unit |
| 01/02/2013 | CN202645529U Efficient spiral-flow type grit separator used for oilfield wellhead |
| 01/02/2013 | CN202645528U Separated and separately transported multi-well alternating measuring combination device |
| 01/02/2013 | CN202645527U Stratum fracture sand blower |
| 01/02/2013 | CN202645526U Jet flow sand blasting cracking device |
| 01/02/2013 | CN202645525U Fracturing string |
| 01/02/2013 | CN202645524U Constant-current constant-temperature self-injecting type oil well feeding device |
| 01/02/2013 | CN202645523U Shallow measuring sectional water-injecting pipe column for horizontal well |
| 01/02/2013 | CN202645522U Porous watering throttling water nozzle |
| 01/02/2013 | CN202645521U Horizontal well injecting and extracting pipe column of gas reservoir |
| 01/02/2013 | CN202645520U Recovery device for fuel gas of oil well |
| 01/02/2013 | CN202645519U Aftereffect perforator |
| 01/02/2013 | CN202645518U Novel expansion pipe connecting structure |
| 01/02/2013 | CN202645517U Casing running device |
| 01/02/2013 | CN202645516U Well-dodging mechanism for triangular frame |
| 01/02/2013 | CN202645515U Self-actuated gas recovery device |
| 01/02/2013 | CN202645514U Rod type load shedding device for pumping unit |
| 01/02/2013 | CN202645513U Non-metal compound continuous tube and electric submersible pump system |
| 01/02/2013 | CN202645512U Lift-type separate layer production string |
| 01/02/2013 | CN202645511U Horizontal well segmental production string |
| 01/02/2013 | CN202645503U Bowling-type fracture sliding bush for oil and gas well |
| 01/02/2013 | CN202645497U Shockproof flow distributor for injecting polymer solution into oil well |
| 01/02/2013 | CN202645454U Straddle test caber perforation combination string |
| 01/02/2013 | CN102859115A 泵送系统 Pumping system |
| 01/02/2013 | CN102859114A Method of retrofitting subsea equipment with separation and boosting |
| 01/02/2013 | CN102859113A Tubular embedded nozzle assembly for controlling the flow rate of fluids downhole |
| 01/02/2013 | CN102857125A Circuits for thickened oil heating system of oil well |
| 01/02/2013 | CN102853043A Non-switching type mechanical reversing device of guide rod mechanism |
| 01/02/2013 | CN102853011A Braking device with sucker rod and speed changing box separating automatically after halt of screw oil pump |
| 01/02/2013 | CN102852547A Drilling and cutting integrated outburst preventing and permeability improving system for mines |
| 01/02/2013 | CN102852546A Method for pre-pumping coal roadway stripe gas of single soft protruded coal seam of unexploited area |
| 01/02/2013 | CN102852513A Continuous oil measuring device of integrating instrument of U-shaped pipe |
| 01/02/2013 | CN102852509A Method for facture of coal bed methane reservoir of high-level coal |
| 01/02/2013 | CN102852508A Liquid CO2 fracturing technology for shale gas well |
| 01/02/2013 | CN102852507A Accurate sand-filling layered optimization design method for continuous oil pipe |
| 01/02/2013 | CN102852506A High-pressure pneumatic blasting pressure relieving and transmission increasing method |
| 01/02/2013 | CN102852505A Oil production method for thin-medium thick layer super heavy oil hard-to-recover reserve |
| 01/02/2013 | CN102852504A Immobile pipe column multi-layer fracturing tool string for vertical shaft |
| 01/02/2013 | CN102852503A Low-temperature coal-layer fracturing fluid composite gel breaking process |
| 01/02/2013 | CN102852502A Intelligent steam distribution process pipe column for horizontal steam injection well |
| 01/02/2013 | CN102852501A Heat compensator for oil field well |
| 01/02/2013 | CN102852500A Draining gas recovery device for capillary pipe and operation method of draining gas recovery device |
| 01/02/2013 | CN102852499A Method for directionally regulating and controlling indigenous microbial flooding of oil reservoir |
| 01/02/2013 | CN102852498A Device and method for simulating thickened oil viscosity reduction during wellbore lifting |
| 01/02/2013 | CN102852497A Compound microorganism oil extraction method for low permeability oilfield |
| 01/02/2013 | CN102852496A Middle-deep layer thickened oil deposit mining method |
| 01/02/2013 | CN102852495A Oil well flow regulator |
| 01/02/2013 | CN102852494A Movable dry stored powder dispersion module for polymer injection and oil production of offshore oil production platform |
| 01/02/2013 | CN102852493A Misoperation-preventing oil pumping unit control device |
| 01/02/2013 | CN102852492A Oil pumping unit convenient for power measurement |
| 01/02/2013 | CN102852491A Efficient and energy-saving oil pumping device |
| 01/02/2013 | CN102852490A High gas suction and discharge process method for complex well |
| 01/02/2013 | CN102852489A Method for treating cold oil extraction layer of thickened oil |
| 01/02/2013 | CN102852488A Shifting device of vertical type pumping unit |
| 01/02/2013 | CN102852487A Horizontal dual-chain pulley guide long constant speed balanced pumping unit |
| 01/02/2013 | CN102852486A Fixed type oil fishing machine |
| 01/02/2013 | CN102852485A Continuous oil-pumping pipe device |
| 01/02/2013 | CN102852484A Multi-drive mutually-balanced oil extractor |
| 01/02/2013 | CN102852467A Separate zone production technical string capable of protecting oil reservoirs |
| 01/02/2013 | CN102410980B Test device and test method for carbon dioxide corrosion simulation |
| 01/02/2013 | CN102199292B Organic silicon resin containing amine propyl group for sand filtering tube as well as preparation method and application thereof |
| 01/02/2013 | CN102181057B Vinyl-containing organic silicon resin for sand screen and preparation method and application thereof |