E21B 47 - Survey of boreholes or wells

Patents for E21B 47 - Survey of boreholes or wells (31,352)
10/2011
10/20/2011	WO2011128355A2 Subsea orientation and control system
10/20/2011	WO2011128068A2 Communication system for transmitting information relating to drilling rods
10/20/2011	WO2011079107A3 Detecting broadside and directional acoustic signals with a fiber optical distributed acoustic sensing (das) assembly
10/20/2011	WO2011056862A3 Rotated single or multicore optical fiber
10/20/2011	WO2011043947A3 Sensor deployment and retrieval system using fluid drag force
10/20/2011	US20110253447 Multiple distributed force measurements
10/20/2011	US20110253446 Apparatus and Methods for Estimating Tool Inclination Using Bit-Based Gamma Ray Sensors
10/20/2011	US20110253377 Testing Subsea Umbilicals
10/20/2011	US20110253364 System and method for generating density in a cased-hole wellbore
10/20/2011	US20110252879 Apparatus for determining downhole fluid temperatures
10/20/2011	US20110252878 Production logging processes and systems
10/20/2011	CA2794739A1 Methods and systems for drilling
10/20/2011	CA2793496A1 Production logging processes and systems
10/19/2011	EP2378058A2 Monitoring sand screen
10/19/2011	EP2376953A1 Proximity detection system for deep wells
10/19/2011	EP2376743A1 Combining reservoir modeling with downhole sensors and inductive coupling
10/19/2011	EP2232012B1 System and method for modeling wellbore trajectories
10/19/2011	CN202012345U Mud pool liquid level monitoring device
10/19/2011	CN202012344U Azimuth ruler for underground drilling
10/19/2011	CN202012343U Gear wheel drilling machine throwing hole orientator
10/19/2011	CN202012327U Excessive capillary test packer
10/19/2011	CN202012324U Module structure of gas injection and gas extraction for gas storage wellhead
10/19/2011	CN202012323U Measurement test device for cluster gas well
10/19/2011	CN102224320A Sand control screen assembly and method for use of same
10/19/2011	CN102224319A Method and system for fixing an element in a borehole
10/19/2011	CN102221712A Automatic testing method of wire line coring drilling hoisting-free pressurized water test
10/19/2011	CN102220865A Method for detecting limestone formation pore pressure
10/19/2011	CN102220848A Vehicular multifunctional double-arm crane used for unloading coiled tubing
10/19/2011	CN102220842A Radial high-pressure water jetting composite well with ultrashort radius as well as well completion tool and technology
10/19/2011	CN101120155B Integrated magnetic ranging tool
10/18/2011	US8040755 Wired pipe depth measurement system
10/18/2011	US8037934 Downhole tool delivery system
10/18/2011	CA2669480C Downhole formation testing tool
10/18/2011	CA2654783C Methods and associated apparatus for downhole data retrieval, monitoring and tool actuation
10/18/2011	CA2637326C Positional control of downhole actuators
10/18/2011	CA2620649C Automatic downlink system
10/18/2011	CA2457078C Method and apparatus for controlling wellbore equipment
10/13/2011	WO2011127374A1 Apparatus and methods for detecting gases during coring operations
10/13/2011	WO2011127331A2 Methods and apparatus for measuring technical parameters of equipment, tools and components via conformal electronics
10/13/2011	WO2011126958A2 Acoustic measurements while using a coring tool
10/13/2011	WO2011126638A1 System and method for determining incursion of water in a well
10/13/2011	WO2011126632A1 Connector apparatus for downhole tool
10/13/2011	WO2011124978A2 Real time data compression and transmission
10/13/2011	WO2011097445A3 Spoolable signal conduction and connection line and method
10/13/2011	WO2011094266A3 Configuration of ordered multicomponent devices
10/13/2011	WO2011073746A3 Calibration of electrochemical sensor
10/13/2011	WO2011072037A3 Bend insensitive optical fiber with improved hydrogen resistance
10/13/2011	US20110251796 Multi-Well Interference Testing and In-Situ Reservoir Behavior Characterization
10/13/2011	US20110247878 Expansion and sensing tool
10/13/2011	US20110247803 Signal propagation across gaps
10/13/2011	US20110247409 Apparatus and method for measuring bores
10/12/2011	EP2374993A1 Downhole data communication
10/12/2011	EP2374029A2 Processing time series data embedded in high noise
10/12/2011	EP2373871A1 Drillstring dynamics
10/12/2011	CN202007662U Direct-reading double temperature probe compensation pressure instrument
10/12/2011	CN202007661U Safety intelligent oil well liquid level depth tester
10/12/2011	CN202007653U Novel logging truck and air-conditioning system thereof
10/12/2011	CN102216563A Method for correcting the measured concentrations of gas components in drilling mud
10/12/2011	CN102213091A Control system of underground measurement and control circuit
10/11/2011	CA2591701C Wellbore communication system
10/11/2011	CA2577160C Method for measuring and calibrating measurements using optical fiber distributed sensor
10/11/2011	CA2547914C Rotational pulsation system and method for communicating
10/11/2011	CA2531745C Determination of the orientation and/or position of the downhole device
10/11/2011	CA2506362C Method of seismic source monitoring using modeled source signatures with calibration functions
10/11/2011	CA2467588C Housing on the exterior of a well casing for optical fiber sensors
10/11/2011	CA2404168C Method and apparatus for determining fluid viscosity
10/06/2011	WO2011123748A2 System and method for real time data transmission during well completions
10/06/2011	WO2011123438A1 Method for maintaining wellbore pressure
10/06/2011	WO2011122957A1 Device for a plug construction for conducting well tests
10/06/2011	WO2011122955A1 Method and device for determinig test pressure in a well
10/06/2011	WO2011094134A3 Optical measurement device
10/06/2011	WO2011090865A3 Detecting and meausuring a coring sample
10/06/2011	WO2011087875A3 Improved efpi sensor
10/06/2011	WO2011085215A3 Wirelessly actuated hydrostatic set module
10/06/2011	WO2011079169A3 Hydraulic deployment of a well isolation mechanism
10/06/2011	WO2011079098A3 Detecting broadside and directional acoustic signals with a fiber optical distributed acoustic sensing (das) assembly
10/06/2011	WO2011072093A3 Method of determining end member concentrations
10/06/2011	WO2011058325A3 Downhole progressive pressurization actuated tool and method of using the same
10/06/2011	WO2010134807A3 Method of monitoring a hydrocarbon reservoir
10/06/2011	US20110241897 System and method for real time data transmission during well completions
10/06/2011	US20110240369 Downhole Steerable Hammer Element
10/06/2011	US20110240365 Internal Liquid Measurement and Monitoring System for a Three Phase Separator
10/06/2011	US20110240364 Acoustic measurements while using a coring tool
10/06/2011	US20110240302 Systems and methods for logging cased wellbores
10/06/2011	US20110240289 Enhanced Oil Recovery By Polymer Without Supplementary Equipment Or Product
10/06/2011	US20110240287 Detection of tracers used in hydrocarbon wells
10/06/2011	US20110240163 Fibre optic tape assembly
10/06/2011	US20110239754 System and method for determining incursion of water in a well
10/06/2011	CA2794755A1 Method for maintaining wellbore pressure
10/06/2011	CA2792475A1 Device for a plug construction for conducting well tests
10/06/2011	CA2786913A1 Multi-step borehole correction scheme for multi-component induction tools
10/05/2011	EP2372331A1 System and method for determining incursion of water in a well
10/05/2011	EP2370672A1 Method and apparatus for real time oil based mud contamination monitoring
10/05/2011	EP1340069B1 Spectral power ratio method and system for detecting drill bit failure and signaling surface operator
10/05/2011	CN202004896U Anti-misoperation intelligent visual recognition system
10/05/2011	CN202001002U Transducer with sectors
10/05/2011	CN202001001U Information classification and transmission priority mechanism circuit
10/05/2011	CN202001000U Optical fiber sensor for measuring downhole pressure
10/05/2011	CN202000999U Measuring device for pore-forming depth of rotary drill rig
10/05/2011	CN202000998U Cable winding device for sliding inclinometer

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