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)
10/2005
10/06/2005CA2838472A1 Extracting and processing hydrocarbon-bearing formations
10/06/2005CA2559799A1 Method of injecting lift gas into a production tubing of an oil well and gas lift flow control device for use in the method
10/06/2005CA2558424A1 Extracting and processing hydrocarbon-bearing formations
10/06/2005CA2557735A1 System and method for multiple wells from a common surface location
10/05/2005EP1582504A1 Method and system for producing inert gas from combustion by-products
10/05/2005EP1582274A2 Procedures and equipment for profiling and jointing of pipes
10/05/2005CN2731140Y Energy saving device for oil pumping
10/05/2005CN2731138Y Belt tension device for oil pumping machine
10/05/2005CN2731137Y Slave tension device for driving-belt of oil pumping machine
10/05/2005CN2731133Y High temperature resisting corrosion resisting oil pump
10/05/2005CN2731094Y Atmolysis bag for oil well
10/05/2005CN2731093Y Powdered oil discharging device for moveable settling tank
10/05/2005CN2731092Y Released dropped sand blasting device
10/05/2005CN2731091Y Dropped three-layer pressing crack pipe column
10/05/2005CN2731090Y Hydraulic oil-pipe blocking device for blowout-prevent work of water injection well
10/05/2005CN2731089Y Monitor for water injection system
10/05/2005CN2731088Y High-pressure water injection device
10/05/2005CN2731087Y Unloading buffer for oil pump
10/05/2005CN2731086Y Long-stroke oil pump
10/05/2005CN2731081Y Integrated water distribution packer for controlling seal deflection of double-body valve
10/05/2005CN2731077Y High-pressure fracturing well head device
10/05/2005CN1677597A Microelectromechanical devices
10/05/2005CN1676870A Method for extracting oil and gas by convection heating of oil shale
10/05/2005CN1676869A Oil-extracting well water injection method
10/05/2005CN1676868A Oil well water-injection oil-extracting technique
10/05/2005CN1676867A Dense well distance surface integrated well cementation leakage-preventing method
10/05/2005CN1676866A Cluster well integrating-drill surface leakage-proof blow-by preventing method
10/05/2005CN1221726C Pumping unit capable of regulating the position of sucker rod and horizontal or vertical position of relative to well
10/04/2005US6951331 Sleeve valve for controlling fluid flow between a hydrocarbon reservoir and tubing in a well and method for the assembly of a sleeve valve
10/04/2005US6951252 Surface controlled subsurface lateral branch safety valve
10/04/2005US6951250 pumping sealant composition comprising partially polymerized furfuryl alcohol/aldehyde into well, curing, hardening when it reaches annulus; isolates waste chemicals from subterranean zone positioned adjacent sealant composition
10/04/2005US6951247 In situ thermal processing of an oil shale formation using horizontal heat sources
10/04/2005CA2450408C Downhole flow control devices
10/04/2005CA2429506C A method of clearing blockages below a reciprocating downhole tubing pump and a reciprocating downhole tubing pump
10/04/2005CA2356148C Profile formation on a tube
10/04/2005CA2330243C Gas separator with automatic level control
10/04/2005CA2183458C Gas lift system with retrievable gas lift valve
10/01/2005CA2502496A1 Apparatus to allow a coiled tubing tractor to traverse a horizontal wellbore
09/2005
09/30/2005CA2502800A1 Enhancement of flow rates through porous media
09/30/2005CA2502598A1 Openhole perforating
09/29/2005WO2005090748A1 Remedial heap treatment
09/29/2005WO2005090747A1 Methods of isolating hydrajet stimulated zones
09/29/2005WO2005090746A1 Method for intensification of high-viscosity oil production and apparatus for its implementation
09/29/2005WO2005089404A2 System and method for combined microseismic and tiltmeter analysis
09/29/2005WO2005089399A2 A method and apparatus for downhole fluid analysis for reservoir fluid characterization
09/29/2005WO2005031105A3 Alternate path gravel packing with enclosed shunt tubes
09/29/2005WO2004099551B1 Method and apparatus for penetrating subsurface formations
09/29/2005US20050215439 Clay stabilization in sub-surface formations
09/29/2005US20050215437 Paraffin inhibitors
09/29/2005US20050214079 Use of hydrate slurry for transport of associated gas
09/29/2005US20050212290 Threaded tubular joint comprising sealing surfaces
09/29/2005US20050211467 Shaped Charge Loading Tube for Perforating Gun
09/29/2005US20050211439 Methods of isolating hydrajet stimulated zones
09/29/2005US20050211438 Methods of stimulating water sensitive coal bed methane seams
09/29/2005US20050211437 Geothermal pipe weight
09/29/2005US20050211436 Methods of heating energy storage devices that power downhole tools
09/29/2005US20050211434 Process for in situ recovery of bitumen and heavy oil
09/29/2005US20050211433 System for logging formations surrounding a wellbore
09/29/2005US20050211432 Device for detecting water in product-only pump flow stream
09/29/2005US20050211322 Expandable tubular element for use in a wellbore
09/29/2005US20050210573 Train-operated biowaste removal system
09/29/2005CA2559937A1 A method and apparatus for downhole fluid analysis for reservoir fluid characterization
09/29/2005CA2557196A1 System and method for combined microseismic and tiltmeter analysis
09/28/2005CN2729770Y Energy-saving autocontroller for water flow of water source heater-pump well
09/28/2005CN2729308Y Anti-sand screen pipe for horizontal well
09/28/2005CN2729307Y Anti-sand pipe with metal microporous cotton
09/28/2005CN2729306Y Sand filter pipe with multilayer metal fibre sintered felt
09/28/2005CN2729305Y Intelligent inner driving winding electric drum beam-pumping unit
09/28/2005CN2729304Y Oil production device using flexible sucker rod
09/28/2005CN2729300Y Integral eccentric water distributor and packer controlled by integral valve
09/28/2005CN1675449A A pipe separator for the separation of fluids, particularly oil, gas and water
09/28/2005CN1675448A Expandable tubular element for use in a wellbore
09/28/2005CN1673534A Well dynamic direct-driven plunger oil-well pump
09/28/2005CN1673489A 地下气化生产矿井 Underground gasification of coal mine production
09/28/2005CN1673488A Underground gasification furnace regulation control system
09/28/2005CN1673487A Underground gasification furnace operating state monitoring system
09/28/2005CN1673486A V-shape precision micro-seam self-cleaning sandproof sieve tube
09/27/2005US6949491 Method and materials for hydraulic fracturing of wells
09/27/2005US6948917 Valving system for a downhole hydraulically actuated pump
09/27/2005US6948563 In situ thermal processing of a hydrocarbon containing formation with a selected hydrogen content
09/27/2005US6948562 Production of a blending agent using an in situ thermal process in a relatively permeable formation
09/27/2005CA2302688C Composite proppant, composite filtration media and methods for making and using same
09/27/2005CA2193980C Suppression of slug flow in a multi-phase fluid stream
09/24/2005CA2500536A1 Shaped charge loading tube for perforating gun
09/23/2005CA2502051A1 Method and system for producing inert gas from combustion by-products
09/22/2005WO2005089021A1 Tool bodies having heated tool faces
09/22/2005WO2005088071A1 The procedure and apparatus for helium or free methane extraction from sea of the shore
09/22/2005WO2005088070A1 Dual cone expander for expanding a tubular element to different diameters
09/22/2005WO2005088069A1 Duplex cone expander for expanding a tubular upward and downward from preexpanded section
09/22/2005WO2005088068A1 Expander cone with unaligned deformable segments
09/22/2005WO2005088067A1 Downward and upward expansion with expandable cone
09/22/2005WO2005088064A1 Annular isolators for tubulars in wellbores
09/22/2005WO2005086614A2 Expandable tubular
09/22/2005WO2005042909A3 Well screen primary tube gravel pack method
09/22/2005WO2005001232A3 Determination of thermal properties of a formation
09/22/2005US20050205266 Biodegradable downhole tools
09/22/2005US20050205263 Self-conforming screen
09/22/2005US20050205260 Wellbore rig with heat transfer loop apparatus
09/22/2005US20050205259 treating a subterranean well by contacting a treatment fluid of water, a polysaccharide, a breaker of chlorite ions and hypochlorite ions, and a breaker moderator of magnesium and calcium ions into the formation
09/22/2005US20050205257 Viscosity control and filtration of well fluids
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