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)
11/2008
11/13/2008WO2007137061A3 Recovery of hydrocarbons using horizontal wells
11/13/2008US20080277123 Offshore Vessel Mooring and Riser Inboarding System
11/13/2008US20080277120 Retrievable frac mandrel and well control stack to facilitate well completion, re-completion or workover and method of use
11/13/2008US20080277119 Method and Apparatus to Hydraulically Bypass a Well Tool
11/13/2008US20080277118 Method and apparatus for jet-fluid abasive cutting
11/13/2008US20080277115 Increasing buoyancy of well treating materials
11/13/2008US20080277114 Screen Saver Sub
11/13/2008US20080277113 Heating tar sands formations while controlling pressure
11/13/2008US20080277112 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
11/13/2008US20080277110 Hydraulic open hole packer
11/13/2008CA2693433A1 A method and apparatus for subterranean fracturing
11/13/2008CA2685912A1 Mounting system for a fiber optic cable at a downhole tool
11/13/2008CA2684915A1 Apparatus and methods for expanding tubular elements
11/13/2008CA2684913A1 Apparatus and method for expanding tubular elements
11/13/2008CA2678638A1 Method for producing fuel and power from a methane hydrate bed
11/13/2008CA2676964A1 Oil well completion tool having severable tubing string barrier disc
11/13/2008CA2661971A1 Process for dispersing nanocatalysts into petroleum-bearing formations
11/12/2008EP1990505A1 Apparatus and method for recovering fluids from a well and/or injecting fluids into a well
11/12/2008EP1989396A2 Flexible well completions
11/12/2008CN201149718Y Alarm for monitoring sucker rod off-doffing card
11/12/2008CN201148963Y High-efficiency oil-well pump
11/12/2008CN201148962Y Open dental type tail part balance beam-pumping unit
11/12/2008CN201148862Y Low multiples hypergravity generator
11/12/2008CN201148846Y Multifunctional rope suspension device
11/12/2008CN201148844Y Mechanical water research and water shutoff integrated pipe column
11/12/2008CN201148842Y Bias-wearing proof oil pumping pipe pillar
11/12/2008CN101305187A System and method for optimizing down-hole fluid yield
11/12/2008CN101305158A Flush mounted tubular patch
11/12/2008CN101303002A Beam type oil pumping machine automatic grease feeding apparatus
11/12/2008CN101302928A Oil tube conveying gun perforation electric energy safe detonation system
11/12/2008CN100432371C Wet electric heating process
11/12/2008CN100432370C Production method of sand-prevention tube and welding equipment
11/11/2008US7449431 Well bore fluid mixture of oil additive, solid colloidal particles coated with dispersants; barite coated with stearyl methacrylate, butyl acrylate; suspnesion stability; drilling fluids
11/11/2008US7448501 Concentric C-shaped filter and screen topology
11/11/2008US7448451 Pre-flushing with hydrocarbon, then placing low-viscosity adhesive substance diluted with aqueous dissolvable solvent into portion of subterranean formation; tackifier resins; phenol-formaldehyde resins; well bores
11/11/2008US7448448 System and method for treatment of a well
11/11/2008US7448447 Real-time production-side monitoring and control for heat assisted fluid recovery applications
11/11/2008US7448443 Variably operable oil recovery system
11/11/2008US7448442 Pad type plunger
11/06/2008WO2008134700A2 Single line sliding sleeve downhole tool assembly
11/06/2008WO2008134371A2 Use of curable liquid elastomers to produce gels for treating a wellbore
11/06/2008WO2008134359A1 Use of elastomers to produce gels for treating a wellbore
11/06/2008WO2008134311A1 Restrictor valve mounting for downhole screens
11/06/2008WO2008133732A2 Electrolytic system for enhanced release and deposition of sub-surface components
11/06/2008WO2008132641A2 Well treatment using electric submersible pumping system
11/06/2008WO2008131610A1 Pumping nuiit without gear driving
11/06/2008WO2008131540A1 Control of particulate entrainment by fluids
11/06/2008WO2008051831A3 Heating hydrocarbon containing formations in a line drive staged process
11/06/2008WO2008027982A3 Method and apparatus for selective down hole fluid communication
11/06/2008WO2006076547B1 System and method for producing fluids from a subterranean formation
11/06/2008US20080272059 Mixture of gas, light liquid and heavy liquid; separation vessel with sloping tube; control valve; accumulation vessel
11/06/2008US20080272049 In-Line Flow Separation of Fluids in a Pipe Separator
11/06/2008US20080271924 Drilling Method and Apparatus
11/06/2008US20080271896 Device in Connection with Heave Compensation
11/06/2008US20080271895 Method and a device for regulating a fluid flow between an outside and an inside of a well pipe
11/06/2008US20080271894 Method and apparatus for subterranean fracturing
11/06/2008US20080271893 Method and Apparatus for Continuously Injecting Fluid in a Wellbore While Maintaining Safety Valve Operation
11/06/2008US20080271892 Radially expandable downhole fluid jet cutting tool having an inflatable member
11/06/2008US20080271891 Methods of Limiting Leak Off and Damage in Hydraulic Fractures
11/06/2008US20080271890 Fracture Stimulation Of Layered Reservoirs
11/06/2008US20080271889 Method of isolating open perforations in horizontal wellbores using an ultra lightweight proppant
11/06/2008US20080271885 Granular electrical connections for in situ formation heating
11/06/2008US20080271882 Controlled gas-lift heat exchange compressor
11/06/2008CA2848264A1 Control of particulate entrainment by fluids
11/06/2008CA2739601A1 Restrictor valve mounting for downhole screens
11/06/2008CA2685053A1 Restrictor valve mounting for downhole screens
11/06/2008CA2684966A1 Control of particulate entrainment by fluids
11/06/2008CA2684681A1 Cladding method and expansion tool
11/05/2008EP1987227A1 Fluid injection device
11/05/2008EP1987226A2 Fluid injection device
11/05/2008EP1986785A1 In-line separator
11/05/2008EP1511957B1 Connector for expandable downhole tubulars
11/05/2008CN201145094Y Self-locking type movable elbow fixing device
11/05/2008CN201144890Y Hydraulic jet pump suitable for horizontal well
11/05/2008CN201144802Y Screw pump safety guard cover
11/05/2008CN201144795Y Sand-proof oil-well pump oil inlet valve apparatus
11/05/2008CN201144794Y Sliding-casing type oil discharging apparatus
11/05/2008CN201144786Y Oil pumping machine brake hoop anti-theft device
11/05/2008CN201144785Y Standing valve-salvageable tube-type gasproof oil-well pump
11/05/2008CN201144784Y Yield increasing high-efficiency oil-well pump for machinery oil extraction
11/05/2008CN201144686Y Casing gas secondary separation device
11/05/2008CN201144685Y Light oil airtight recovery device of drier
11/05/2008CN201144684Y Underground gasification furnace air outlet pipe thermal expansion cold contraction and anti-leakage device
11/05/2008CN201144683Y Fracturing sliding bush sandblast
11/05/2008CN201144682Y Multiple fracturing pipe column for petroleum and gas well
11/05/2008CN201144681Y Non-obstruct tentacle plugging selective gas injection pipe column
11/05/2008CN201144680Y Heavy crude layer separation and selective gas injection integrated pipe column
11/05/2008CN201144679Y Anti-pollution eccentric water distributor having well reverse cleanout function
11/05/2008CN201144678Y Fillable water control screen pipe
11/05/2008CN201144677Y Fillable water control screen pipe
11/05/2008CN201144676Y Sand preventing screen pipe
11/05/2008CN201144675Y Generation state energy reused electrohydraulic energy-saving beam type oil pumping machine
11/05/2008CN201144674Y Novel downhole choke having sealing structure
11/05/2008CN201144673Y Balanced type trolley type oil pumping machine
11/05/2008CN201144672Y Energy-saving trolley type beam-pumping unit
11/05/2008CN201144671Y Energy-saving beam type numerical control oil pumping machine
11/05/2008CN201144653Y Offset adjustable rope suspensor of exhauster for removing cooking fumes
11/05/2008CN201144650Y Multifunctional creep grinding apparatus equipped with electronic power measuring device
11/05/2008CN201144649Y Multifunctional creep grinding apparatus equipped with automatic compensation device
11/05/2008CN101300403A Less-fragment perforating gun system for oriented perforation
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