E21B 47 - Survey of boreholes or wells

Patents for E21B 47 - Survey of boreholes or wells (31,352)
11/2013
11/21/2013	US20130311097 Methods and systems for pressure testing components of a hydrocarbon well system
11/21/2013	US20130311093 Methods and systems for testing the integrity of components of a hydrocarbon well system
11/21/2013	US20130310256 Herbicidal compositions comprising 4-amino-3-chloro-5-fluoro-6-(4-chloro-2-fluoro-3-methoxyphenyl) pyridine-2-carboxylic acid or a derivative thereof and vlcfa and lipid synthesis inhibiting herbicides
11/21/2013	US20130308831 Method And System For Estimating Rock Properties From Rock Samples Using Digital Rock Physics Imaging
11/21/2013	US20130308680 Temperature sensor using an optical fiber
11/21/2013	US20130308424 Method of Generating and Characterizing a Seismic Signal in a Drill Bit
11/21/2013	US20130306375 Drilling tool, apparatus and method for underreaming and simultaneously monitoring and controlling wellbore diameter
11/21/2013	US20130306374 Communication system for extended reach wells
11/21/2013	US20130306373 Electronically activated underreamer and calliper tool
11/21/2013	US20130306308 Equipment and Methods for Determining Waiting-on-Cement Time in a Subterranean Well
11/20/2013	EP2664743A1 Downhole information storage and transmission
11/20/2013	EP2663738A2 System and apparatus for modeling the behavior of a drilling assembly
11/20/2013	EP2663737A2 Flow profile modeling for wells
11/20/2013	EP2663736A2 Method for controlling the downhole temperature during fluid injection into oilfield wells
11/20/2013	EP2663735A2 Rotational test valve with tension reset
11/20/2013	EP2663731A2 Rotational wellbore test valve
11/20/2013	EP2663726A1 Boring ram
11/20/2013	CN203296771U Axial and radial combined distributive conducting probe sensor
11/20/2013	CN203296770U Built-in integral pressure meter support drum
11/20/2013	CN203296769U Automatic monitoring device for casing pressure of oil-water well
11/20/2013	CN203296768U Well cementation parameter monitoring and data transmission device
11/20/2013	CN203296767U Novel testing device for multi-layer fracturing
11/20/2013	CN203296766U Platform at least detecting whole straightness of array induction log tool probe pup joint
11/20/2013	CN203296759U Pipe column device for perforating and testing of HTHP ultra-deep well
11/20/2013	CN203296749U Horizontal well water exploration valve
11/20/2013	CN103397878A Acoustic logging-while-drilling device of variable-diameter sound insulation structure
11/20/2013	CN103397877A Position finder
11/20/2013	CN103397876A Gas well liquid-carrying mechanism visualization simulation experiment device of complex structural well
11/20/2013	CN103397875A Method for detecting bed boundary
11/20/2013	CN103397874A Experimental apparatus used for chemical sand control and consolidation evaluation
11/20/2013	CN103397868A Skid-mounted integrated process device for coal bed gas drainage and production wells and method for applying skid-mounted integrated process device
11/20/2013	CN102261241B Device and method for measuring signal hole in mine gas extraction system
11/20/2013	CN102108857B Restrictor ring bearing assembly
11/20/2013	CN102080503B Continuous directional coring and deflecting machine tool with dual tubes for outer guiding and inner drilling and deflecting method thereof
11/19/2013	US8584519 Communication through an enclosure of a line
11/19/2013	US8584518 Gas trap for drilling mud having quick-release separable lower section
11/19/2013	CA2708007C Tractor communication/control and select fire perforating switch simulations
11/19/2013	CA2577582C High impact communication and control system
11/19/2013	CA2572999C Sensor system
11/19/2013	CA2493775C Marking of pipe joints
11/14/2013	WO2013169975A1 Misalignment compensation for deep reading azimuthal propagation resistivity
11/14/2013	WO2013169638A1 Accounting for bending effect in deep azimuthal resistivity measurements using inversion
11/14/2013	WO2013169543A2 Methods and systems for real-time monitoring and processing of wellbore data
11/14/2013	WO2013169383A1 Method and system for data-transfer via a drill pipe
11/14/2013	WO2013169255A1 Methods and systems for long-term monitoring of a well system during abandonment
11/14/2013	WO2013166602A1 Method and system for monitoring well operations
11/14/2013	WO2013116826A4 Wellsite communication system and method
11/14/2013	WO2012164524A3 Acoustic triggering devices for multiple fluid samplers and methods of making and using same
11/14/2013	US20130301389 System And Method For Communicating Data Between Wellbore Instruments And Surface Devices
11/14/2013	US20130301388 Misalignment compensation for deep reading azimuthal propagation resistivity
11/14/2013	US20130299242 System and method for identifying a ballooning zone
11/14/2013	US20130299241 Prediction and diagnosis of lost circulation in wells
11/14/2013	US20130299240 Drilling apparatus
11/14/2013	US20130299237 Method and system for data-transfer via a drill pipe
11/14/2013	US20130299188 Well Access Tools
11/14/2013	US20130299165 Methods and systems for long-term monitoring of a well system during abandonment
11/14/2013	US20130299164 Systems and Methods For Advanced Well Access to Subterranean Formations
11/14/2013	US20130299163 System and Method for Triggering a Downhole Tool
11/14/2013	US20130298665 System and method for monitoring strain & pressure
11/14/2013	US20130298664 Pipe with vibrational analytics
11/14/2013	US20130298662 Methods and systems for testing lost circulation materials
11/13/2013	EP2662605A1 System for recording a cross-section profile
11/13/2013	EP2661646A1 Method and system of calculating a fault throw
11/13/2013	EP2661540A2 Downhole formation fluid contamination assessment
11/13/2013	EP2661539A1 Probe for analysing an assembly of rods or tubes
11/13/2013	EP2661538A2 Method and device to measure perforation tunnel dimensions
11/13/2013	CN203285435U Casing pipe gas fixed-point on-line monitoring system
11/13/2013	CN203285432U Actuator of wireless instrument operating while drilling through high-temperature drilling fluid
11/13/2013	CN203285431U Direct-reading pressure meter and direct-reading pressure meter system
11/13/2013	CN203285430U High-precision logging device
11/13/2013	CN203285429U Float bowl for clinometer
11/13/2013	CN203285428U Buoy shock absorber
11/13/2013	CN203285427U Vibration reduction slip ring seat of single-shot inclinometer
11/13/2013	CN203285426U Underground ultra-long thermocouple multipoint distribution structure and outer tube protection structure
11/13/2013	CN203285425U Clamp holder
11/13/2013	CN203285424U Thickened oil single-tank automatic counting device
11/13/2013	CN203285423U Thickened oil meter on-line single measurement system
11/13/2013	CN203285422U Platform at least capable of detecting concentricity of axial coil of three-dimension array induction log tool
11/13/2013	CN203285421U Platform at least detecting planeness of radial coils of three-dimensional array induction log tool
11/13/2013	CN203285420U Platform at least detecting center straightness of radial coils of three-dimensional array induction log tool
11/13/2013	CN203285419U Lever-type flow meter
11/13/2013	CN103388473A Method and system for eliminating direct wave interference in acoustic logging, and acoustic logging instrument
11/13/2013	CN103388472A Near-bit bit pressure measuring sensor
11/13/2013	CN103388471A Drilling verification instrument and work method thereof
11/13/2013	CN103388470A Cam flow-concentrating thick oil liquid producing profile direct-reading tester
11/13/2013	CN102305061B Method for explaining saturation of multiphase fluid
11/12/2013	US8581740 Method and apparatus for communicating signals to an instrument in a wellbore
11/12/2013	US8581594 Microresistivity anisotropy logging tool employing a monopole current injection electrode
11/12/2013	US8581592 Downhole methods and assemblies employing an at-bit antenna
11/12/2013	US8579504 Subsea and landing string distributed temperature sensor system
11/12/2013	US8579045 Rock drilling device and drill rig incorporating a device for measuring the location of the drilling machine
11/12/2013	US8579026 Safety structure for downhole power unit testing
11/07/2013	WO2013165943A2 System and method for drill pipe tallying
11/07/2013	WO2013165711A1 Systems and methods of detecting an intersection between a wellbore and a subterranean structure that includes a marker material
11/07/2013	WO2013165439A1 Method and apparatus for use of electronic pressure gauge in extreme high temperature environment
11/07/2013	WO2013164614A2 Downhole device
11/07/2013	WO2013164570A2 Determining the depth and orientation of a feature in a wellbore
11/07/2013	WO2013071223A3 System and method for steering a relief well
11/07/2013	WO2013009458A3 Remotely activated downhole apparatus and methods
11/07/2013	WO2012174295A3 Control system for downhole operations

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