| 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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| 05/30/2007 | CN1318730C Petroleum fracturing fluid mixing vehicle |
| 05/30/2007 | CN1318729C Combined typed method of edge-water encroachment of microbe |
| 05/30/2007 | CN1318728C Method of sealing an annulus |
| 05/30/2007 | CN1318727C Method for filling well aperture of subterranean terrane with gravel and gravel filling agent |
| 05/29/2007 | US7222676 Well communication system |
| 05/29/2007 | US7222675 Downhole draw down pump and method |
| 05/29/2007 | US7222673 Production of free gas by gas hydrate conversion |
| 05/29/2007 | US7222672 Wellbore fluids containing additives for removing a filter cake and methods of using the same |
| 05/29/2007 | US7222670 System and method for multiple wells from a common surface location |
| 05/29/2007 | CA2569294A1 Downhole gas separator |
| 05/29/2007 | CA2472793C Connection of downhole tubulars by expansion |
| 05/29/2007 | CA2432637C Method and apparatus for repair operations downhole |
| 05/29/2007 | CA2241871C Gelling agent for hydrocarbon liquid and method of use |
| 05/29/2007 | CA2200413C A method of installing the casing in a well and apparatus therefor |
| 05/24/2007 | WO2007058814A2 Composition and method for thickening heavy aqueous brines |
| 05/24/2007 | WO2007058813A2 Methods for recovering oil from an oil reservoir |
| 05/24/2007 | WO2007057378A1 Wellbore system |
| 05/24/2007 | WO2007035745A3 Well treatment device, method, and system |
| 05/24/2007 | WO2007027080A3 Control system for seabed processing system |
| 05/24/2007 | US20070117723 Contacting a sulfamate stabilized, bromine-based breaker with an aqueous polysaccharide fracturing fluid; comprising bromine chloride, bromine and chlorine; reducing the viscosity of fracturing fluids in subterranean oil and gas wells |
| 05/24/2007 | US20070114171 Composite filtering mesh, a sand control sleeve and a sand control screen pipe with the composite filtering mesh |
| 05/24/2007 | US20070114044 Annular Isolators for Expandable Tubulars in Wellbores |
| 05/24/2007 | US20070114038 Well production by fluid lifting |
| 05/24/2007 | US20070114037 Wellbore system for simultaneous drilling and production |
| 05/24/2007 | US20070114035 Hydrating a polysaccharide thickener, boron crosslinker is added, the fluid is injected into the wellbore to stimulate hydrocarbon production; because less time is needed for hydration, well site mixing equipment is down-sized smaller to achieve better efficiency and cost savings |
| 05/24/2007 | US20070114034 Controlling pressure and static charge build up within an annular volume of a wellbore |
| 05/24/2007 | US20070114033 Controlling the pressure within an annular volume of a wellbore |
| 05/24/2007 | US20070114031 Completion apparatus and methods for use in hydrocarbon wells |
| 05/24/2007 | US20070114030 Methods of modifying particulate surfaces to affect acidic sites thereon |
| 05/24/2007 | US20070114029 Hydraulic fracturing proppants and methods of use |
| 05/24/2007 | US20070114028 Fracturing of subterranean formations |
| 05/24/2007 | US20070114027 Wellbore gravel packing apparatus and method |
| 05/24/2007 | US20070114026 Method and apparatus for extracting gas hydrate deposits |
| 05/24/2007 | US20070114025 Conserving components of fluids |
| 05/24/2007 | US20070114024 Anti-oxidizing process for non-cryogenic nitrogen |
| 05/24/2007 | US20070114023 Gas lift flow surveillance device |
| 05/24/2007 | US20070114022 Methods of stabilizing unconsolidated subterranean formations |
| 05/24/2007 | US20070114020 Robust sand screen for oil and gas wells |
| 05/24/2007 | US20070114019 Annular Isolators for Expandable Tubulars in Wellbores |
| 05/24/2007 | US20070114018 Annular Isolators for Expandable Tubulars in Wellbores |
| 05/24/2007 | US20070114017 Annular Isolators for Expandable Tubulars in Wellbores |
| 05/24/2007 | US20070114016 Annular Isolators for Expandable Tubulars in Wellbores |
| 05/24/2007 | US20070114015 Oil pumping unit using an electrical submersible pump driven by a circular linear synchronous three-phase motor with rare earth permananet magnet |
| 05/24/2007 | CA2776396A1 Methods for recovering oil from an oil reservoir |
| 05/24/2007 | CA2626923A1 Wellbore system |
| 05/23/2007 | EP1787008A2 A method and apparatus for downhole detection of co2 and h2s using resonators coated with co2 and h2s sorbents |
| 05/23/2007 | EP1787006A1 Method for drilling oil and gas wells |
| 05/23/2007 | EP1689971B1 Method and system for injecting a treatment fluid into a well |
| 05/23/2007 | CN2904446Y Speed change energy-saving power device suitable for oil pumping unit |
| 05/23/2007 | CN2903479Y Oil pumping pump piston assembly |
| 05/23/2007 | CN2903472Y Large channel solid plunger rod type oil pump |
| 05/23/2007 | CN2903471Y Screw pump direct driving apparatus |
| 05/23/2007 | CN2903366Y Sewage recovering apparatus for under well working of oil field |
| 05/23/2007 | CN2903365Y Hot production well sand proof screening tube |
| 05/23/2007 | CN2903364Y Sand proof screening tube |
| 05/23/2007 | CN2903363Y Desilting dregs proof device |
| 05/23/2007 | CN2903362Y Multifunctional centering guide, wax scraping, oil increasing device |
| 05/23/2007 | CN2903361Y Oil well sleeve gas straight exhausting apparatus |
| 05/23/2007 | CN2903360Y Balance type rotary drum oil pumping machine |
| 05/23/2007 | CN2903359Y Lower deviation barbell long stroke oil pumping machine |
| 05/23/2007 | CN2903358Y Gaseous liquid balancing auto continuous chemicals adding apparatus |
| 05/23/2007 | CN2903344Y Multifunctional rope hanging device of oil pumping machine |
| 05/23/2007 | CN1969108A System stabilizers and performance enhancers for aqueous fluids gelled with viscoelastic surfactants |
| 05/23/2007 | CN1966933A Recovery and gathering-transferring technology for thick oil |
| 05/23/2007 | CN1966122A Device for separating incompatible gas-liquid two phase and liquid-liquid two phase |
| 05/23/2007 | CN1317483C Method of entering target geologic body and system |
| 05/23/2007 | CN1317482C Perforator detection device |
| 05/23/2007 | CA2567413A1 Method and apparatus for extracting gas hydrate |
| 05/22/2007 | US7219746 Apparatus and method for installing a branch junction from a main well |
| 05/22/2007 | US7219745 Completion apparatus and methods for use in wellbores |
| 05/22/2007 | US7219743 Method and apparatus to isolate a wellbore during pump workover |
| 05/22/2007 | US7219742 Method and apparatus to complete a well having tubing inserted through a valve |
| 05/22/2007 | US7219741 Tubing annulus valve |
| 05/22/2007 | US7219736 Externally testable redundant connections for subsea wells |
| 05/22/2007 | US7219735 Immiscible with capping fluid; preventing pollution; kits |
| 05/22/2007 | US7219734 Inhibiting wellbore deformation during in situ thermal processing of a hydrocarbon containing formation |
| 05/22/2007 | US7219732 Methods of sequentially injecting different sealant compositions into a wellbore to improve zonal isolation |
| 05/22/2007 | US7219731 Degradable additive for viscoelastic surfactant based fluid systems |
| 05/22/2007 | US7219727 Wear resistant tubular connection |
| 05/22/2007 | US7219725 Instrumented plunger for an oil or gas well |
| 05/22/2007 | US7219541 Method and apparatus for downhole fluid analysis for reservoir fluid characterization |
| 05/22/2007 | CA2471471C Method for recovery of hydrocarbons from low pressure formations |
| 05/22/2007 | CA2457596C Tension thrust espcp system |
| 05/22/2007 | CA2401184C Improving reservoir communication with a wellbore |
| 05/22/2007 | CA2391721C Hydrocarbon production process with decreasing steam and/or water/solvent ratio |
| 05/22/2007 | CA2225101C A rotating connector for operative connection between a buoy and a floating vessel for the production of hydrocarbons |
| 05/18/2007 | WO2007056615A1 Flush mounted tubular patch |
| 05/18/2007 | WO2007056121A1 Monitoring formation properties |
| 05/18/2007 | WO2007055592A1 An arrangement for heating a hydrocarbon transport line |
| 05/18/2007 | WO2007055591A1 Unit for gas treatment in rotating equipment for subsea compression |
| 05/18/2007 | WO2007055590A1 Flow divider and separation system |
| 05/18/2007 | WO2007055589A1 Pressure and leakage control in rotating equipment for subsea compression |
| 05/18/2007 | WO2007054708A1 Methods for treating a subterranean formation with a curable composition using a jetting tool |
| 05/18/2007 | WO2006120466A8 Apparatus for controlling a downhole device |
| 05/18/2007 | CA2627431A1 Monitoring formation properties |
| 05/17/2007 | US20070111903 Separatory and emulsion breaking processes |
| 05/17/2007 | US20070111898 Methods and compositions for treating subterranean zones |
| 05/17/2007 | US20070111897 For use as a well servicing fluid; cationic guar as natural polymer is desirable; well completion |
| 05/17/2007 | US20070111896 Viscoelastic cationic carbohydrate ether compositions |
| 05/17/2007 | US20070111895 Subterranean treatment fluids comprising polyoxazoline compositions and methods of use in subterranean formations |