| 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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| 06/29/2006 | WO2005064218A8 Method of assembling two hermetic threaded tubular joints comprising a local and initial thinned thickness, by means of plastic expansion |
| 06/29/2006 | US20060142166 Method using particulate chelates to stimulate production of petroleum in carbonate formations |
| 06/29/2006 | US20060142165 Methods and compositions for treating subterranean formations using sulfonated gelling agent polymers |
| 06/29/2006 | US20060140726 Riser installation vessel and method of using the same |
| 06/29/2006 | US20060138853 Apparatus, method and system for single well solution-mining |
| 06/29/2006 | US20060137909 Portable electrocrushing drill |
| 06/29/2006 | US20060137883 Well screen |
| 06/29/2006 | US20060137881 One-way valve for a side pocket mandrel of a gas lift system |
| 06/29/2006 | US20060137879 Combination of inorganic or organic acid, cationic fluorocarbon surfactant, C4-8 alkyl alcohol, betaine surfactant, alkyl polyglycoside, and water optionally containing ammonium chloride; the foam is stable at 200 degrees F. for at least 3 to 4 hours |
| 06/29/2006 | US20060137878 Drilling fluid additive and method |
| 06/29/2006 | US20060137875 Methods useful for controlling fluid loss in subterranean formations |
| 06/29/2006 | US20060137874 System and Technique for Orienting and Positioning a Lateral String in a Multilateral System |
| 06/29/2006 | US20060137872 Method and device for intensifying the permeability of ground layers close to bore holes and filter bodies and filter layers in wells and other produciton wells |
| 06/29/2006 | CA2589338A1 Method, system, controller and computer program product for controlling the flow of a multiphase fluid |
| 06/28/2006 | EP1558834A4 Methods and apparatus for a subsea tie back |
| 06/28/2006 | EP1389263B1 A method of controlling the direction of propagation of injection fractures in permeable formations |
| 06/28/2006 | EP1179116B9 Recovery of production fluids from an oil or gas well |
| 06/28/2006 | CN2792020Y Frequency-speed control device for oil-pumping unit |
| 06/28/2006 | CN2791246Y Gas-removing degassing apparatus for well-drilling apparatus |
| 06/28/2006 | CN2791244Y Magnetic suspension pump oil-feeding device |
| 06/28/2006 | CN2791243Y Equipotential self-balanced oil pump for clustertype well |
| 06/28/2006 | CN1793606A Separate layer gas injection tube pile |
| 06/28/2006 | CN1793605A Releasing gadget sealing insertion head gas-injection tube pile |
| 06/28/2006 | CN1793604A Oil production device for gas-drive well |
| 06/28/2006 | CN1793603A Sand prevention screen tube and mfg. tech. thereof |
| 06/28/2006 | CN1793602A Single crank double distance flexible type beam-pumping unit |
| 06/28/2006 | CN1261688C Low friction resistance plunger pump |
| 06/28/2006 | CN1261670C Uses of mono-molecular monoquaternary ammonium salt and mono-molecular polyqualernary ammonium salts |
| 06/28/2006 | CN1261669C Layering injection amount and layering pressure test-free storage direct-reading method |
| 06/27/2006 | USRE39141 Downhole equipment, tools and assembly procedures for the drilling, tie-in and completion of vertical cased oil wells connected to liner-equipped multiple drainholes |
| 06/27/2006 | US7067459 A fracturing fluid contains an aqueous fluid, a guar polymer, a cross-linking agent capable of increasing the viscosity of the fracturing fluid by cross-linking the polymer, a breaking agent, anda gas hydrate controller which is dialkylaminoethyl methacrylate or vinyl amide homo or copolymers |
| 06/27/2006 | US7067445 Extended particle size distribution ceramic fracturing proppant |
| 06/27/2006 | US7066686 Automatic control methods for positioning the lower end of a filiform structure, notably an oil pipe, at sea |
| 06/27/2006 | US7066284 Method and apparatus for a monodiameter wellbore, monodiameter casing, monobore, and/or monowell |
| 06/27/2006 | US7066272 Sealed multilateral junction system |
| 06/27/2006 | US7066271 Expanded downhole screen systems and method |
| 06/27/2006 | US7066268 Well jet device for well testing and developing and the operating method for the well jet device |
| 06/27/2006 | US7066266 Method of treating oil and gas wells |
| 06/27/2006 | US7066265 System and method of production enhancement and completion of a well |
| 06/27/2006 | US7066264 Method and apparatus for treating a subterranean formation |
| 06/27/2006 | US7066262 treating a portion of a subterranean formation by providing a reduced volatility gelled liquid hydrocarbon treatment fluid that comprises a liquid hydrocarbon and a gelling agent that has a polyvalent metal salt of a phosphoric acid ester |
| 06/27/2006 | US7066261 Perforating system and method |
| 06/27/2006 | US7066260 Dissolving filter cake |
| 06/27/2006 | US7066259 Bore isolation |
| 06/27/2006 | US7066258 Reduced-density proppants and methods of using reduced-density proppants to enhance their transport in well bores and fractures |
| 06/27/2006 | US7066257 In situ recovery from lean and rich zones in a hydrocarbon containing formation |
| 06/27/2006 | US7066254 In situ thermal processing of a tar sands formation |
| 06/27/2006 | US7066252 Erosion resistant, self and/or artificial external cleaning solid exclusion system |
| 06/27/2006 | US7066248 Bottom discharge seal section |
| 06/27/2006 | US7066247 Methods and apparatus for drilling with a multiphase pump |
| 06/27/2006 | CA2424745C Apparatus and method for enhancing productivity of natural gas wells |
| 06/27/2006 | CA2366722C Multi-purpose injection and production well system |
| 06/27/2006 | CA2310043C Method and apparatus for increasing fluid recovery from a subterranean formation |
| 06/27/2006 | CA2259575C Use of oil and gas field chemicals |
| 06/27/2006 | CA2243835C A process for the thermo-hydraulic control of gas hydrates |
| 06/22/2006 | WO2006065990A1 High density brines for use in wellbore fluids |
| 06/22/2006 | WO2006063986A1 Method of sealing an annular space in a wellbore |
| 06/22/2006 | US20060135372 Controlled degradation of filtercakes and other downhole compositions |
| 06/22/2006 | US20060131881 Pre-expanded connector for expandable downhole tubulars |
| 06/22/2006 | US20060131880 Pre-expanded connector for expandable downhole tubulars |
| 06/22/2006 | US20060131879 Pre-expanded connector for expandable downhole tubulars |
| 06/22/2006 | US20060131033 Flow control apparatus for use in a wellbore |
| 06/22/2006 | US20060131029 Method and system for cleaning a well bore |
| 06/22/2006 | US20060131028 Apparatus for the measuring of fluid levels and pumping of the same |
| 06/22/2006 | US20060131027 Device for heating and thermally insulating at least one undersea pipeline |
| 06/22/2006 | US20060131026 Adjustable window liner |
| 06/22/2006 | US20060131025 Method and system for producing a reservoir through a boundary layer |
| 06/22/2006 | US20060131024 Accessing subterranean resources by formation collapse |
| 06/22/2006 | US20060131023 Apparatus and method for cleaning out sand from an underbalanced hydrocarbon producing well |
| 06/22/2006 | US20060131022 Matrix treatment of damaged sandstone formations using buffered HF-acidizing solutions |
| 06/22/2006 | US20060131021 Method and composition for treating a subterranean formation with splittable foams |
| 06/22/2006 | US20060131020 Perforating tubulars |
| 06/22/2006 | US20060131017 Self diverting matrix acid |
| 06/22/2006 | US20060131012 Remediation of subterranean formations using vibrational waves and consolidating agents |
| 06/22/2006 | DE102005060008A1 Vorrichtung und Verfahren zur Verwendung in einem Bohrloch mit mehreren Bohrungszonen Apparatus and method for use in a wellbore having a plurality of zones bore |
| 06/22/2006 | CA2728970A1 Geometrical optimization of multi-well trajectories |
| 06/22/2006 | CA2602004A1 High density brines for use in wellbore fluids |
| 06/22/2006 | CA2588008A1 Method of sealing an annular space in a wellbore |
| 06/21/2006 | EP1672167A1 Flow control apparatus for use in a wellbore |
| 06/21/2006 | EP1671014A1 Improvements in and relating to perforators |
| 06/21/2006 | EP1671013A1 Improvements in and relating to oil well perforators |
| 06/21/2006 | EP1552104B1 System to reduce hydrostatic pressure in risers using buoyant spheres |
| 06/21/2006 | EP1278935B1 Tubing head seal assembly |
| 06/21/2006 | CN2789494Y Improved connection structure for crank and crankpin of pumping unit |
| 06/21/2006 | CN2789410Y Balancing weight regulator |
| 06/21/2006 | CN2789409Y Flexible driving intelligent pumping unit |
| 06/21/2006 | CN2789408Y Automatic decompression type valve swab |
| 06/21/2006 | CN1791731A Systems and methods using a continuously variable transmission to control one or more system components |
| 06/21/2006 | CN1789661A Production yield control method for the extra-low permeability reservior exploitation pattern |
| 06/21/2006 | CN1789660A Stimulated ignition method for fire-flooding driven oil well |
| 06/21/2006 | CN1789659A Fire flooding process for thick oil extraction |
| 06/21/2006 | CN1789658A Weight balance and suspension combined oil-pumping unit |
| 06/21/2006 | CN1260504C Device used in welding pipeline under water |
| 06/21/2006 | CN1260032C Technology for machining kerfed sieving pipe |
| 06/20/2006 | US7063485 Top tensioned riser |
| 06/20/2006 | US7063163 Multi-layer deformable composite construction for use in a subterranean well |
| 06/20/2006 | US7063162 Method for controlling fluid flow into an oil and/or gas production well |
| 06/20/2006 | US7063161 Artificial lift with additional gas assist |
| 06/20/2006 | US7063160 Non-orienting tubing hanger system with a flow cage |
| 06/20/2006 | US7063154 Methods of treating subterranean zones and treating fluids therefor |