E21B 47 - Survey of boreholes or wells

Patents for E21B 47 - Survey of boreholes or wells (31,352)
05/2011
05/19/2011	WO2011022391A3 High resolution sensor with scalable sample rate
05/19/2011	WO2011010016A3 Drill pipe and corresponding drill fitting
05/19/2011	WO2009158189A3 Detecting a structure in a well
05/19/2011	WO2009137537A3 Signal operated tools for milling, drilling, and/or fishing operations
05/19/2011	US20110114309 Sensor for determining downhole parameters and methods for using same
05/19/2011	US20110114308 Hydraulic Interlock System Between Casing Gripper and Spider
05/19/2011	CA2781091A1 Electrode configuration for downhole nuclear radiation generator
05/19/2011	CA2780321A1 Laser alignment device for use with a drill rig
05/19/2011	CA2778311A1 Downhole progressive pressurization actuated tool and method of using the same
05/18/2011	EP2322753A2 Expandable reamers for earth boring applications
05/18/2011	CN201835827U Multifunctional petroleum logging cable core multiplexing device
05/18/2011	CN201835826U Line connecting male slip ring for measurement-while-drilling instrument
05/18/2011	CN201835825U Wired measuring and transmitting motor for instrument for measuring while drilling
05/18/2011	CN201835824U Tubular column pressure testing device of oil drainage type sucker rod pump
05/18/2011	CN201835823U High-precision oil well diameter measuring device
05/18/2011	CN201835822U Underground liquid column height detector for oil extraction
05/18/2011	CN201835821U Wired detector for height of downhole fluid column for oil production
05/18/2011	CN201835820U Rotary nipple
05/18/2011	CN201835819U Metering calibration vehicle for oil production
05/18/2011	CN201835818U Mobile skid-mounted gas-liquid phase flow measurement station
05/18/2011	CN201835817U Oil measuring device for wireless indicator
05/18/2011	CN201835816U Flexible joint of spherical connecting structure
05/18/2011	CN201835814U Polymer shearing property testing device
05/18/2011	CN201835813U Concrete target for evaluating bullet perforator
05/18/2011	CN201835812U Wireless underground fluid column height detector for oil production
05/18/2011	CN201835811U Module combination type high-temperature high-pressure drilling fluid testing device
05/18/2011	CN201835799U Coal bed gas well screw type discharging and producing system based on internet of things
05/18/2011	CN201835794U Drainage and gas production simulation experiment device
05/18/2011	CN201835784U Well head eccentric testing device for direct-drive screw pump wells
05/18/2011	CN102066983A Univ western australia
05/18/2011	CN102061909A Process for determining azimuth angle on disc scales
05/18/2011	CN102061908A Axial vibration damper applicable to measuring instrument while drilling
05/18/2011	CN102061907A Flow section scanning imager
05/18/2011	CN101124489B Downhole positioning system
05/18/2011	CN101109280B Test device for down-hole drop ply position
05/17/2011	US7945488 Drilling collaboration infrastructure
05/17/2011	US7944211 Characterization of formations using electrokinetic measurements
05/17/2011	US7942204 Method and apparatus for rescaling measurements while drilling in different environments
05/17/2011	US7942203 Thermal processes for subsurface formations
05/17/2011	CA2582909C Constant force actuator
05/17/2011	CA2492318C Subsea and landing string distributed temperature sensor system
05/12/2011	WO2011057058A2 Temperature insensitive devices and methods for making same
05/12/2011	WO2011056862A2 Rotated single or multicore optical fiber
05/12/2011	WO2011056263A1 Light based communication port for use on downhole tools
05/12/2011	WO2011056262A1 Communication port for use on a wellbore measuring instrument
05/12/2011	WO2011056171A1 Open loop cooling system and method for downhole tools
05/12/2011	WO2011056077A1 Lockable core barrel head for drilling system and survey instrument assembly provided with a connection link for arrangement in a drilling system
05/12/2011	WO2011054085A1 High efficiency fluid pumping apparatus and method
05/12/2011	WO2011022257A3 Attachment of control lines to outside of tubular
05/12/2011	WO2011019791A3 Thermal vapor stream apparatus and method
05/12/2011	WO2011017417A3 Systems and methods for monitoring a well
05/12/2011	WO2011017416A3 Systems and methods for monitoring a well
05/12/2011	WO2011014877A3 Three phase electrical wet connector for a downhole tool
05/12/2011	US20110108721 Filter Wheel Assembly for Downhole Spectroscopy
05/12/2011	US20110108325 Integrating Multiple Data Sources for Drilling Applications
05/12/2011	US20110108267 Wired drill pipe cable connector system
05/12/2011	US20110107830 Apparatus and methods for characterizing a reservoir
05/12/2011	CA2788984A1 High efficiency fluid pumping apparatus and method
05/12/2011	CA2780099A1 Communication port for use on a wellbore measuring instrument
05/12/2011	CA2780068A1 Light based communication port for use on downhole tools
05/12/2011	CA2779932A1 Lockable core barrel head for drilling system and survey instrument assembly provided with a connection link for arrangement in a drilling system
05/11/2011	EP2318655A2 Location of bypassed hydrocarbons
05/11/2011	EP2318645A1 A tool using outputs of sensors responsive to signaling
05/11/2011	EP2318643A1 Apparatus and method for data transmission from a rotating control device
05/11/2011	CN201829047U Device adopting RS-485 driver and receiver for data transmission
05/11/2011	CN201826834U Magnetic coupled type continuous wave pressure pulse generator
05/11/2011	CN201826833U Shunting type rotary valve for continuous wave pressure pulse generator
05/11/2011	CN201826832U Detection recorder for ram preventer
05/11/2011	CN201826831U Automatic cable core conversion device based on 485 bus
05/11/2011	CN201826830U Logging device based on RS485 system data bus
05/11/2011	CN201826829U Testing tubular column stress tester
05/11/2011	CN102057133A Geochemical surveillance of gas production from tight gas fields
05/11/2011	CN102057130A Method and device for core drilling
05/11/2011	CN102052069A Near-bit measurement while drilling (MWD) system and method
05/11/2011	CN101509982B Core electrofiltration potential measuring gripper
05/11/2011	CN101487375B Performance test method and system for top-driving drilling apparatus
05/11/2011	CN101178006B Optical-fiber temperature and pressure two-parameter permanent oil well sensing unit
05/10/2011	US7938197 Automated MSE-based drilling apparatus and methods
05/10/2011	US7938180 Fluid level sensor
05/10/2011	US7938179 Method of using a charged chamber pressure transmitter for subterranean tools
05/10/2011	US7938178 Distributed temperature sensing in deep water subsea tree completions
05/10/2011	US7938175 Drilling, perforating and formation analysis
05/10/2011	US7937999 Estimating formation temperature near a borehole and using same for estimating a property of the formation
05/10/2011	CA2589148C Methods and apparatus for communicating across casing
05/10/2011	CA2584068C Magnetic measurements while rotating
05/10/2011	CA2539609C Inferential densometer and mass flowmeter
05/10/2011	CA2484611C Downhole tool
05/10/2011	CA2462051C System and method for determining the inclination of a wellbore
05/05/2011	WO2011053714A2 Piezo-based downhole flow meter
05/05/2011	WO2011053364A1 Downhole surveying utilizing multiple measurements
05/05/2011	WO2011053161A1 Azimuth initialization and calibration of wellbore surveying gyroscopic and inertial instruments by means of an external navigation system
05/05/2011	WO2011051441A1 Scanning tool
05/05/2011	WO2011051435A2 Downhole system
05/05/2011	WO2011051432A1 Bubble logging tool
05/05/2011	WO2011051431A1 Magnetic ranging system for controlling a drilling process
05/05/2011	WO2011051429A1 Positioning tool
05/05/2011	WO2011051321A1 Downhole apparatus
05/05/2011	WO2011022352A3 Remediation of relative permeability blocking using electro-osmosis
05/05/2011	WO2011022255A3 Attachment of control lines to outside of tubular
05/05/2011	WO2011017419A3 Systems and methods for monitoring corrosion in a well

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