E21B 47 - Survey of boreholes or wells

Patents for E21B 47 - Survey of boreholes or wells (31,352)
10/2006
10/12/2006	WO2006106488A1 A method of logging a well equipped with a rod pump
10/12/2006	WO2006037079A3 Apparatus and method for wireline imaging in nonconductive muds
10/12/2006	US20060227005 System and methods of communicating over noisy communication channels
10/12/2006	US20060226699 Methods and apparatus for the downhole characterization of formation fluids
10/12/2006	US20060225926 Method and conduit for transmitting signals
10/12/2006	US20060225921 Mapping tool for tracking and/or guiding an underground boring tool
10/12/2006	US20060225920 Method and apparatus for downlink communication
10/12/2006	US20060225882 Method of logging a well equipped with a rod pump
10/12/2006	US20060225881 Use of sensors with well test equipment
10/12/2006	US20060225880 Apparatus and methods for logging a well borehole with controllable rotating instrumentation
10/12/2006	US20060225878 Downhole position locating device with fluid metering feature
10/11/2006	EP1709293A1 Method and apparatus for enhancing directional accuracy and control using bottomhole assembly bending measurements
10/11/2006	EP1709280A2 System, method and apparatus for petrophysical and geophysical measurements at the drilling bit
10/11/2006	EP1468166B1 Sonde housing and method of manufacture
10/11/2006	EP1444416B1 Use of cutting velocities for real time pore pressure and fracture gradient prediction
10/11/2006	EP1412616B1 Dual sensor freepoint tool
10/11/2006	EP1259710B1 Oilwell casing electrical power pick-off points
10/11/2006	EP1259708B1 Wireless power and communications cross-bar switch
10/11/2006	CN2825946Y Safety anti-freezing anti-drop testing plug
10/11/2006	CN2825945Y Anti-collision device at well mouth for testing oil well
10/11/2006	CN2825944Y Multifunctional non-obstacle anti-drop device for oil and water well
10/11/2006	CN1846128A An apparatus and a method of visulazing target objects in a fluid-carrying pipe
10/10/2006	US7120565 Method and apparatus for determining figure
10/10/2006	US7117944 Drill pipe having an internally coated electrical pathway
10/10/2006	US7117734 Method for measuring formation properties with a time-limited formation test
10/10/2006	US7117733 Dynamic logging speed
10/10/2006	US7117605 System and method for using microgyros to measure the orientation of a survey tool within a borehole
10/10/2006	CA2452473C System and method for the production of oil from low volume wells
10/10/2006	CA2434435C Co-located antennas
10/05/2006	WO2006105432A2 Determining viscosity of fluids from well logs using electroseismic measurements
10/05/2006	WO2006105033A1 Method and apparatus for downlink communication
10/05/2006	US20060220650 Wellbore communication system
10/05/2006	US20060219438 Wireless communications in a drilling operations environment
10/05/2006	US20060219402 Hydraulic fracturing
10/05/2006	US20060219401 Apparatus and method for sensing downhole parameters
10/05/2006	DE102006014559A1 Vorrichtung und Verfahren zum Abtasten von Bohrlochparametern Apparatus and method for sampling downhole parameters
10/05/2006	DE102006014265A1 Modulares Bohrlochwerkzeugsystem Modular downhole tool system
10/04/2006	EP1706710A1 Detection of water breakthrough
10/04/2006	EP1706584A2 Measuring device and drilling device for deep drillings
10/04/2006	EP1259706B1 Use of downhole high pressure gas in a gas-lift well
10/04/2006	CN2824025Y Three phase drimeter
10/04/2006	CN2823553Y Downhole integrated water plugging finding pipe string
10/04/2006	CN2823538Y Water injection packer
10/04/2006	CN1841090A Method for scanning radiation three-dimensional acoustic field in formations generated from a borehole
10/04/2006	CN1841089A Method for scanning radiation two-dimensional acoustic field in formations generated from a borehole
10/04/2006	CN1278133C Method and apparatus for transmitting information to the surface from a drill string down hole in a well
10/03/2006	US7117092 Pulsed-neutron formation density
10/03/2006	US7116199 Inductive coupler for downhole components and method for making same
10/03/2006	US7116182 Method and system for downhole clock having compensation
10/03/2006	US7115847 In situ processing of hydrocarbon-bearing formations with variable frequency dielectric heating
10/03/2006	US7114580 Method and apparatus for determining a trajectory of a directional drill
10/03/2006	US7114579 System and method for interpreting drilling date
10/03/2006	US7114578 Method and apparatus for determining drill string movement mode
10/03/2006	US7114577 Safemode operating system for a drilling or service rig
10/03/2006	US7114566 Heat treatment using natural distributed combustor; oxidation of hydrocarbons to generate heat; pyrolysis
10/03/2006	US7114565 Measurement-while-drilling assembly using real-time toolface oriented measurements
10/03/2006	US7114564 Method and apparatus for orienting perforating devices
10/03/2006	US7114562 Apparatus and method for acquiring information while drilling
10/03/2006	US7114561 Wireless communication using well casing
10/03/2006	US7114557 System and method for optimizing production in an artificially lifted well
10/03/2006	US7114386 Method and apparatus for acquiring data in a hydrocarbon well in production
10/03/2006	CA2472436C Method and apparatus for performing diagnostics on a downhole communication system
10/03/2006	CA2412273C Downhole magnetic-field based feature detector
10/03/2006	CA2326489C Drillstring with stabilisers for re-entering a primary wellbore
10/03/2006	CA2250483C Well system
10/03/2006	CA2202328C Method and apparatus for measuring formation pressure
10/03/2006	CA2179166C Downhole tool
09/2006
09/30/2006	CA2541103A1 Method system and program storage device for simulating a multilayer reservoir and partially active elements in a hydraulic fracturing simulator
09/28/2006	WO2006102456A1 Method for installing well completion equipment while monitoring electrical integrity
09/28/2006	WO2006070239A3 Methods and apparatus for electro-optical hybrid telemetry
09/28/2006	US20060214663 Tracking the positional relationship between a boring tool and one or more buried lines using a composite magnetic signal
09/28/2006	US20060214098 Fluid flow measurement using optical fibres
09/28/2006	US20060213660 Downhole cooling based on thermo-tunneling of electrons
09/28/2006	US20060213659 Method for installing well completion equipment while monitoring electrical integrity
09/28/2006	US20060213657 In situ thermal processing of an oil shale formation using a pattern of heat sources
09/28/2006	DE102006013708A1 Bohrlochkommunikationssystem A wellbore communication system
09/27/2006	CN2821598Y Wave form generator circuit
09/27/2006	CN2821155Y Tension short joint of downhole logging instrument
09/27/2006	CN2821145Y Anti-blow detector for ground wellhead
09/27/2006	CN1839243A Make-up control system for tube
09/27/2006	CN1837861A Apparatus for transmitting excitation signal of phased array sound wave transducer
09/27/2006	CN1837576A Storage type downhole pressure and temperature continuous-measuring apparatus
09/26/2006	US7112557 Electrically conductive oil-based mud
09/26/2006	US7111693 System and method for locating and tracking a boring tool
09/26/2006	US7111681 Interpretation and design of hydraulic fracturing treatments
09/21/2006	WO2006099399A2 Determination of coal bed natural gas production factors and a system to determine same
09/21/2006	WO2006097772A1 Well bore sensing
09/21/2006	WO2006096935A1 Survey tool
09/21/2006	WO2005086565A3 Leadless sub assembly for downhole detection system
09/21/2006	CA2692554A1 Apparatus and method of determining casing thickness and permeability
09/21/2006	CA2692550A1 Apparatus and method of determining casing thickness and permeability
09/21/2006	CA2601030A1 Well bore sensing
09/21/2006	CA2600795A1 Determination of coal bed natural gas production factors and a system to determine same
09/21/2006	CA2540444A1 System and method for transmitting information through a fluid medium
09/20/2006	EP1702208A1 Electro-chemical sensor
09/20/2006	EP1702136A1 Controlling a fluid well
09/20/2006	CN2818777Y Magnetic inspector of sleeve perforation evelet quality of oil well
09/20/2006	CN2818761Y Tubular column construction and pressure-test integrated equipment under well
09/20/2006	CN2818759Y Stabilized linked platform apparatus
09/20/2006	CN1836155A Method and apparatus for a downhole refractometer and attenuated reflectance spectrometer

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