| 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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| 02/14/2006 | US6997259 Methods for forming a permeable and stable mass in a subterranean formation |
| 02/14/2006 | US6997255 In situ thermal processing of a hydrocarbon containing formation in a reducing environment |
| 02/14/2006 | US6997212 Choke valve with temperature transmitter |
| 02/14/2006 | CA2487878C Pressure-actuated perforation with automatic fluid circulation for immediate production and removal of debris |
| 02/14/2006 | CA2414358C Deformable wall of a tubular |
| 02/14/2006 | CA2193184C Recirculation of a lower alkyldisulphide in a well |
| 02/14/2006 | CA2180881C Packer type groundwater sampling system and water sampling method |
| 02/14/2006 | CA2164360C Method for multi-lateral completion and cementing the juncture with lateral wellbores |
| 02/10/2006 | CA2515619A1 Well casing straddle assembly |
| 02/09/2006 | WO2006015277A1 Downhole inflow control device with shut-off feature |
| 02/09/2006 | WO2006014951A2 Method of pumping an “in-the formation” diverting agent in a lateral section of an oil or gas well |
| 02/09/2006 | WO2006014166A2 Linear drive assembly with rotary union for wellheads |
| 02/09/2006 | US20060030494 Set-on demand, ester-based wellbore fluids and methods of using the same |
| 02/09/2006 | US20060030493 Crosslinked treatment fluid compositions and methods |
| 02/09/2006 | US20060030492 A butadiene-styrene copolymer, a heat-activated, gelation crosslinker (di-tert-butylperoxide and/or dicumyl peroxide), a gel accelerator, and an oxidant (cumyl hydroperoxide and/or tert-butyl hydroperoxide) todecompose the gel in time; enhanced oil recovery; oil,gas and water wells |
| 02/09/2006 | US20060030491 Polyether polyesters having anionic functionality |
| 02/09/2006 | US20060027397 Perforating gun connector |
| 02/09/2006 | US20060027376 Expandable tubing and method |
| 02/09/2006 | US20060027371 Apparatus and method |
| 02/09/2006 | US20060027370 Expandable injector pipe |
| 02/09/2006 | US20060027369 Additives for hydrate inhibition in fluids gelled with viscoelastic surfactants |
| 02/09/2006 | US20060027368 Method and apparatus for well perforating |
| 02/09/2006 | US20060027367 Methods of improving conformance control in fractured hydrocarbon reservoirs |
| 02/09/2006 | US20060027364 Stabilizing crosslinked polymer guars and modified guar derivatives |
| 02/09/2006 | US20060027363 Treating a hydrocarbon-containing formation with a mixture of aliphatic anionic surfactant and a branched aliphatic nonionic additive to reduce interfacial surface tension between fluids (e.g., water, hydrocarbons) to allow interaction with different hydrocarbons to form an emulsion |
| 02/09/2006 | US20060027362 Three phase downhole separator process |
| 02/09/2006 | US20060027361 Non-emulsion based oil simulant |
| 02/09/2006 | US20060027360 Tool for fluid filling and circulation during oilfield well tubing |
| 02/09/2006 | DE19535906B4 Verfahren zur Herstellung einer verrohrten Gewinnungsbohrung A process for producing a cased production borehole |
| 02/09/2006 | DE102005030559A1 Vorrichtung und Verfahren zum Charakterisieren einer unterirdischen Formation und Vorrichtung und Verfahren zum Perforieren eines verrohrten Bohrlochs An apparatus and method for characterizing a subterranean formation, and apparatus and methods for perforating a cased borehole |
| 02/08/2006 | EP1451443B1 Severe dog leg swivel for tubing conveyed perforating |
| 02/08/2006 | CN2756865Y Multifunction deep well pump |
| 02/08/2006 | CN2756825Y Under well layered flow continuous detector |
| 02/08/2006 | CN2756824Y Deviation water distribution device |
| 02/08/2006 | CN2756821Y Multifunction rod control type oil draining device |
| 02/08/2006 | CN2756820Y Bridge type deviation integrated water distribution packer |
| 02/08/2006 | CN2756816Y Sand-proof pipe external gravel filling sand-proof well-washing compensator |
| 02/08/2006 | CN1732326A A system and a method for prediction and treatment of slugs being formed in a flow line or wellbore tubing |
| 02/08/2006 | CN1730943A Negative pressure oil-well pump |
| 02/08/2006 | CN1730942A Vortex oil-well pump |
| 02/08/2006 | CN1730903A Chemical multi-component preparation and injection method and multi-component static mixing device |
| 02/08/2006 | CN1730902A Chemical regulator for stratified waterflooding in water injection well and stratified water amount regulating construction method |
| 02/08/2006 | CN1730901A Double-acting wheel type long stroke pumping unit |
| 02/08/2006 | CN1730149A Surface active agent synthesized from alkyl benzene, its formula system and its application in tertiary oil extraction |
| 02/08/2006 | CN1730148A Surface active agent synthesized from alkyl naphthalene, its formula system and its application in tertiary oil extraction |
| 02/08/2006 | CN1730146A Surface active agent, its formula system and its application in tertiary oil extraction |
| 02/08/2006 | CN1240806C Chemical agent for aiding extraction of thickening oil and its uses |
| 02/07/2006 | US6995120 Scale control composition for high scaling environments |
| 02/07/2006 | US6994170 Expandable sand control screen assembly having fluid flow control capabilities and method for use of same |
| 02/07/2006 | US6994169 In situ thermal processing of an oil shale formation with a selected property |
| 02/07/2006 | US6994168 In situ thermal processing of a hydrocarbon containing formation with a selected hydrogen to carbon ratio |
| 02/07/2006 | US6994166 Composition and method for diversion agents for acid stimulation of subterranean formations |
| 02/07/2006 | US6994165 Multilateral open hole gravel pack completion methods |
| 02/07/2006 | US6994161 In situ thermal processing of a coal formation with a selected moisture content |
| 02/07/2006 | US6994160 In situ thermal processing of a hydrocarbon containing formation to produce hydrocarbons having a selected carbon number range |
| 02/07/2006 | US6994159 System for extracting natural gas hydrate |
| 02/07/2006 | CA2450419C Downhole flow control devices |
| 02/07/2006 | CA2315024C Apparatus and method for injecting treatment fluids into an underground formation |
| 02/07/2006 | CA2282023C Process and device for recovering and treating of aqueous solutions |
| 02/07/2006 | CA2197962C Apparatus and method for sampling an earth formation through a cased borehole |
| 02/07/2006 | CA2164794C Bisphenol-containing resin coated articles and methods of using same |
| 02/02/2006 | WO2006012186A1 Drilling systems and methods utilizing independently deployable multiple tubular strings |
| 02/02/2006 | WO2006012164A1 Controlled variable density fluid for wellbore operations |
| 02/02/2006 | WO2005054594A3 Methods, systems, and devices for saving natural resources usable ina building structure |
| 02/02/2006 | US20060025312 Cement-free zeolite and fly ash settable fluids and methods therefor |
| 02/02/2006 | US20060021798 Impact excavation system and method with particle separation |
| 02/02/2006 | US20060021754 Method for operating a well jet device during cleaning of the downhole area of a formation and device for carrying out said method |
| 02/02/2006 | US20060021753 Method of Pumping an "In-the-Formation" Diverting Agent in a Lateral Section of an Oil and Gas Well |
| 02/02/2006 | US20060021752 Subterranean electro-thermal heating system and method |
| 02/02/2006 | US20060021750 Method and system for injecting a treatment fluid into a well |
| 02/02/2006 | CA2572241A1 Method and system for gathering, transporting and marketing offshore oil and gas |
| 02/02/2006 | CA2514087A1 Procedure for capturing mercaptans in a gas load |
| 02/01/2006 | EP1621724A2 Methods of downhole testing subterranean formations and associated apparatus therefor |
| 02/01/2006 | EP1620630A1 Apparatus and method for enhancing productivity of natural gas wells |
| 02/01/2006 | EP1620629A2 System and method using a continuously variable transmission to control one or more system components |
| 02/01/2006 | EP1440220B1 An entry well with slanted well bores and method |
| 02/01/2006 | EP1392955B1 Borehole production boosting system |
| 02/01/2006 | CN2755651Y Automatic controller of pumping unit |
| 02/01/2006 | CN2755314Y Bearing short joint of electric submarine oil pump |
| 02/01/2006 | CN2755312Y Heavy long-travel pumping unit |
| 02/01/2006 | CN2755280Y High-efficient sand-proof and abrasive-resistant oil and gas separator |
| 02/01/2006 | CN2755279Y Gas-proof tubular column against pollution of oil well |
| 02/01/2006 | CN2755278Y Automatic medicine feeder of oil well |
| 02/01/2006 | CN2755277Y Dynamic adjuster of pumping unit |
| 02/01/2006 | CN1729347A Self-diverting pre-flush acid for sandstone |
| 02/01/2006 | CN1729346A 水力压裂方法 Hydraulic fracturing method |
| 02/01/2006 | CN1729345A Methods for controlling the rheological properties of viscoelastic surfactants based fluids |
| 02/01/2006 | CN1729343A Template and system of templates for drilling and completing offset well bores |
| 02/01/2006 | CN1727636A Method and system for accessing subterranean deposits from the surface |
| 02/01/2006 | CN1727635A Method and equipment for equipotential self-balancing pumping unit in cluster wells |
| 02/01/2006 | CN1239825C Combination oil-well pump |
| 02/01/2006 | CN1239698C Particle carrier carrying microbe and method of oil extraction, block removing and environmental protection degreasing using the carrier |
| 02/01/2006 | CN1239670C Method for fracturing rock-layer underground |
| 01/31/2006 | US6991045 Forming openings in a hydrocarbon containing formation using magnetic tracking |
| 01/31/2006 | US6991044 High-energy combined well perforating device |
| 01/31/2006 | US6991040 Method and apparatus for locking out a subsurface safety valve |
| 01/31/2006 | US6991037 Multiple azimuth control of vertical hydraulic fractures in unconsolidated and weakly cemented sediments |
| 01/31/2006 | US6991036 Thermal processing of a relatively permeable formation |
| 01/31/2006 | US6991034 Apparatus and method for enhancing productivity of natural gas wells |
| 01/31/2006 | US6991033 pyrolysis of kerogens in wells to form mixtures of hydrocarbon oxidates, paraffins, hydrogen, and/or synthesis gas; process control |