| 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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| 06/20/2007 | CN2913598Y Drop-proof loop composite water distributor barrel |
| 06/20/2007 | CN2913597Y 空心配水器 Hollow water distribution |
| 06/20/2007 | CN2913596Y Inflatable sand screen |
| 06/20/2007 | CN1985068A Temperature limited heaters with thermally conductive fluid used to heat subsurface formations |
| 06/20/2007 | CN1985067A Aqueous tackifier and methods of controlling particulates |
| 06/20/2007 | CN1982713A Rodded thickened-oil pump |
| 06/20/2007 | CN1982710A Sandproof feedback thickened oil pump |
| 06/20/2007 | CN1982647A Underground coal gasifier with air-lift point separating control and its process |
| 06/20/2007 | CN1322224C Completion system of oil and gas wells with regulatably controlling flows of formation fluid or filled fluid in divided sections |
| 06/20/2007 | CN1322223C Tower type pumping unit |
| 06/20/2007 | CN1321715C Device for separating multi-phase fluids |
| 06/19/2007 | US7232793 Subterranean treatment fluid containing a friction reducing polymer with acrylamide and acrylic acid units, particularly hydrolyzed polyacrylamide; an anionic salt; glycerin; a polyester polyol nonionic surfactant; and an ammonium salt of polyacrylic acid anionic surfactant; for stimulation of oil wells |
| 06/19/2007 | US7232524 Methods and apparatus for increasing and extending oil production from underground formations nearly depleted of natural gas drive |
| 06/19/2007 | US7231982 Perforating gun quick connection system |
| 06/19/2007 | US7231980 Self orienting lateral junction system |
| 06/19/2007 | US7231978 Chemical injection well completion apparatus and method |
| 06/19/2007 | US7231976 Method of treating an oil or gas well with biodegradable low toxicity fluid system |
| 06/19/2007 | US7231974 Self-leaving in-situ device and method for passively removing oil from water wells |
| 06/19/2007 | US7231973 Viscosity control and filtration of well fluids |
| 06/19/2007 | US7231819 Chemical sensor for wellbore applications |
| 06/19/2007 | CA2441332C Methods of consolidating proppant and controlling fines in wells |
| 06/19/2007 | CA2435382C Device and method to seal boreholes |
| 06/19/2007 | CA2321035C Hydrologic cells for the exploitation of hydrocarbons from carbonaceous formations |
| 06/14/2007 | WO2007067059A1 All electric subsea boosting system |
| 06/14/2007 | WO2007066289A1 Method to improve the injectivity of fluids and gases using hydraulic fracturing |
| 06/14/2007 | WO2007066186A1 Brittle material fracturing system |
| 06/14/2007 | WO2007051167A3 Method and apparatus for treating water to reduce boiler scale formation |
| 06/14/2007 | WO2007050180B1 Improved slurrified heavy oil recovery process |
| 06/14/2007 | WO2007044166A3 Foaming a wet hydrocarbon composition: process and composition |
| 06/14/2007 | WO2007034136A3 Sub-surface deployment valve |
| 06/14/2007 | US20070135314 Effective at dissolving siliceous clays and keeping dissolved materials in solution; prevents re-precipitation; for sandstone stimulation, removal of clay-containing drilling fluid components and filter cakes from wellbores, sandstone acid fracturing, and gravel pack and proppant pack cleaning |
| 06/14/2007 | US20070135313 Subterranean treatment fluid containing a friction reducing polymer, particularly hydrolyzed polyacrylamide; an anionic salt; a polyol such as glycerine; a nonionic surfactant (e.g., polyester polyol); and an anionic surfactant such as polyammonium acrylate; for stimulation of oil wells |
| 06/14/2007 | US20070135310 Compositions for treating a well penetrating a subterranean formation and uses thereof |
| 06/14/2007 | US20070133961 Methods and systems for producing fluid from an in situ conversion process |
| 06/14/2007 | US20070133960 In situ conversion process systems utilizing wellbores in at least two regions of a formation |
| 06/14/2007 | US20070133959 Grouped exposed metal heaters |
| 06/14/2007 | US20070132236 Method of producing a hermetic tubular joint comprising local and initial added thickness(es), by means of plastic expansion |
| 06/14/2007 | US20070131623 Method of reclaiming brine solutions using an organic chelant |
| 06/14/2007 | US20070131431 Self-Lubricating expansion mandrel for expandable tubular |
| 06/14/2007 | US20070131430 Well jet device for logging horizontal wells and the operating method thereof |
| 06/14/2007 | US20070131429 Subsea well separation and reinjection system |
| 06/14/2007 | US20070131427 Systems and methods for producing hydrocarbons from tar sands formations |
| 06/14/2007 | US20070131425 Aggregating reagents, modified particulate metal-oxides, and methods for making and using same |
| 06/14/2007 | US20070131424 Proppant for use in a subterranean formation |
| 06/14/2007 | US20070131423 Method of extracting hydrocarbons |
| 06/14/2007 | US20070131422 Sand aggregating reagents, modified sands, and methods for making and using same |
| 06/14/2007 | US20070131421 Multiple entrance shunt |
| 06/14/2007 | US20070131420 Methods of cracking a crude product to produce additional crude products |
| 06/14/2007 | US20070131419 Methods of producing alkylated hydrocarbons from an in situ heat treatment process liquid |
| 06/14/2007 | US20070131415 forming wellbore in formation, heating to increase permeability; treating an oil shale formation comprising dissolving nahcolite in hot water, adding a controlled amount of oxidant, producing hydrocarbon fluids from the formation; produce oil from oil wells |
| 06/14/2007 | US20070131411 Thermal processes for subsurface formations |
| 06/14/2007 | US20070131410 Downhole hydraulic pipe cutter |
| 06/14/2007 | DE102006025762B3 Pumping device for delivery of medium to be pumped, has motor which can be connected with pump by torque-transmission means, which penetrates over the side of bore pipe work |
| 06/14/2007 | CA2632274A1 All electric subsea boosting system |
| 06/14/2007 | CA2629918A1 Viscoelastic surfactant rheology modification |
| 06/14/2007 | CA2571209A1 Cam actuated centrifugal brake for preventing backspin |
| 06/13/2007 | EP1795699A1 Method of determining the sour gas storage capacity of a geological medium with the help of a multi-phase reactive transport model |
| 06/13/2007 | EP1794509A1 Solar augmented geothermal energy |
| 06/13/2007 | EP1794454A1 Wellbore-external underwater pump |
| 06/13/2007 | EP1451436B1 Acid gas disposal method |
| 06/13/2007 | CN2911253Y Periodic exhausting oil well pump |
| 06/13/2007 | CN2911250Y D.C.linear pumping unit used in oil |
| 06/13/2007 | CN2911177Y Circular micromoving sand screening pipe with sheathing V-shape groove gap |
| 06/13/2007 | CN2911176Y Gear shape stainless steel plate net cylinder sand screening apparatus |
| 06/13/2007 | CN2911175Y Intelligent long stroke pumping unit |
| 06/13/2007 | CN2911173Y Ultrasonic visbreaking device |
| 06/13/2007 | CN1981110A Monitoring fluid pressure in a well and retrievable pressure sensor assembly for use in the method |
| 06/13/2007 | CN1981109A Method and apparatus for performing chemical treatments of exposed geological formations |
| 06/13/2007 | CN1978865A Smart synergetic controller for oil pump |
| 06/13/2007 | CN1978864A Perforation press cracking method and device |
| 06/13/2007 | CN1978863A Permanent-magnet disc motor connection lever driven oil pump |
| 06/13/2007 | CN1321257C Method and apparatus for producing thick oil based on sound, light and electricity combination function |
| 06/13/2007 | CN1321256C Oil-pumping workover rig |
| 06/12/2007 | US7229952 Contains chitosan and sodium hypochlorite solution as halogenating agent |
| 06/12/2007 | US7229950 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 |
| 06/12/2007 | US7228915 Device and method to seal boreholes |
| 06/12/2007 | US7228914 Interventionless reservoir control systems |
| 06/12/2007 | US7228911 Apparatus for and method of radial expansion of a tubular member |
| 06/12/2007 | US7228909 One-way valve for a side pocket mandrel of a gas lift system |
| 06/12/2007 | US7228908 Hydrocarbon sweep into horizontal transverse fractured wells |
| 06/12/2007 | US7228907 High energy gas fracturing charge device and method of use |
| 06/12/2007 | US7228906 Propellant ignition assembly and process |
| 06/12/2007 | US7228904 Compositions and methods for improving fracture conductivity in a subterranean well |
| 06/12/2007 | US7228901 Method and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells |
| 06/12/2007 | US7228900 System and method for determining downhole conditions |
| 06/12/2007 | US7228897 Cement through side pocket mandrel |
| 06/12/2007 | US7228896 Ribbed sealing element and method of use |
| 06/12/2007 | CA2493431C Undulating well bore |
| 06/12/2007 | CA2462195C Expandable packer |
| 06/12/2007 | CA2367491C Wellbore packer with rupture disc |
| 06/07/2007 | WO2007064864A2 Hydrostatic separator apparatus and method |
| 06/07/2007 | WO2007063325A1 Particles |
| 06/07/2007 | US20070129259 Hydrocarbon industry servicing fluid and methods of performing service operations |
| 06/07/2007 | US20070129258 Antiswelling agents contains shale encapsulator contsisting of quaternary polyacrylamide and polyvinyl alcohol, for absorbing and binding on clay particles, encapsulating the cuttings during drilling solids in subterranean formation |
| 06/07/2007 | US20070129257 Method for foaming a hydrocarbon drilling fluid and for producing light weight hydrocarbon fluids |
| 06/07/2007 | US20070129256 Additives for inhibiting the formation of gas hydrates |
| 06/07/2007 | US20070127897 Subsurface heaters with low sulfidation rates |
| 06/07/2007 | US20070125545 Method and apparatus for removing cuttings from drilling fluids |
| 06/07/2007 | US20070125544 Method and apparatus for providing pressure for well treatment operations |
| 06/07/2007 | US20070125543 Method and apparatus for centralized well treatment |