Patents
Sitemap › E21 - Earth or rock drilling; Mining › E21B - Earth or rock drilling; Obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells › E21B 47 - Survey of boreholes or wells
Patents for E21B 47 - Survey of boreholes or wells (31,352)
08/2014
08/28/2014WO2014130654A1 Alternating frequency time domain approach to calculate the forced response of drill strings
08/28/2014WO2014130293A1 Methods and compositions for treating subterranean formations with swellable lost circulation materials
08/28/2014WO2014130269A1 Method for installing multiple sensors in coiled tubing
08/28/2014WO2014130268A1 Method and device installing multiple fiber optic cables in coiled tubing
08/28/2014WO2014130013A1 System and method to convert surface pressure to bottom hole pressure using an integrated computation element
08/28/2014WO2014128613A1 Cement data telemetry via drill string
08/28/2014WO2014127489A1 Integrated downhole system with plural telemetry subsystems
08/28/2014WO2014127482A1 Electromagnetic pulse downhole telemetry
08/28/2014WO2014127453A1 Directional measurements using neutron sources
08/28/2014WO2014089402A3 Surface excitation ranging system for sagd application
08/28/2014WO2014078851A3 Real-time pump diagnostic algorithms and application thereof
08/28/2014WO2013184866A3 Flow control system
08/28/2014WO2013119724A3 Instrumented core barrel apparatus and associated methods
08/28/2014US20140244176 Method to Assess Uncertainties and Correlations Resulting From Multi-Station Analysis of Survey Data
08/28/2014US20140240141 Downhole telemetry
08/28/2014US20140240140 Downhole electromagnetic and mud pulse telemetry apparatus
08/28/2014US20140238669 Magnetically Clamping A Downhole Component to A Direction of A Borehole Casing
08/28/2014US20140238666 Method and Apparatus for Magnetic Pulse Signature Actuation
08/28/2014US20140238664 Noise isolation tool
08/28/2014US20140238663 Apparatus and Method for Determining Closure Pressure From Flowback Measurements of a Fractured Formation
08/28/2014US20140238123 Snorkel Tube with Debris Barrier for Electronic Gauges Placed on Sand Screens
08/28/2014CA2809026A1 Downhole detection
08/27/2014EP2770347A2 Transducer assembly
08/27/2014EP2770306A1 Method for measuring the fluid level in an opening in the ground
08/27/2014EP2770160A2 Signal operated isolation valve
08/27/2014EP2769051A1 Methods for installing and retrieving a well monitoring apparatus
08/27/2014EP2769050A1 Plug sensor
08/26/2014US8818776 System and method for downhole tool system development
08/26/2014US8818729 System and method for formation detection and evaluation
08/26/2014US8816689 Apparatus and method for multi-component wellbore electric field Measurements using capacitive sensors
08/26/2014US8813869 Analysis refracted acoustic waves measured in a borehole
08/26/2014US8813840 Method and system for accessing subterranean deposits from the surface and tools therefor
08/26/2014CA2756506C Annulus mud flow rate measurement while drilling and use thereof to detect well dysfunction
08/26/2014CA2663824C Optimized well spacing for in situ shale oil development
08/25/2014CA2842978A1 Noise isolation tool
08/22/2014CA2843331A1 Method and system for monitoring downhole assets
08/22/2014CA2808714A1 Tool for use in well monitoring
08/21/2014WO2014127177A1 Subterranean formation oil mobility quicklook
08/21/2014WO2014127086A1 Estimating adsorbed gas volume from nmr and dielectric logs
08/21/2014WO2014126659A1 Distributed acoustic monitoring via time-sheared incoherent frequency domain reflectometry
08/21/2014WO2014126589A1 Method and system of planning lateral wellbores within irregular boundaries
08/21/2014WO2014126550A1 Up hole transmission of well data based on bandwidth
08/21/2014WO2014126484A1 Method and system for identifying zones of high fracture connectivity in a geologic/geothermal reservoir
08/21/2014WO2014124530A1 Fluid pressure pulse generating apparatus with pressure compensation device and pulser assembly housing
08/21/2014WO2014008095A9 Method and system for measuring and calculating a modified equivalent circulating density (ecdm) in drilling operations
08/21/2014WO2013188093A3 Application of high intensity focused ultrasound to the displacement of drilling mud
08/21/2014WO2013165943A3 System and method for drill pipe tallying
08/21/2014US20140236485 Recoverable data acquisition system and method of sensing at least one parameter of a subterranean bore
08/21/2014US20140236357 Cement Data Telemetry via Drill String
08/21/2014US20140233804 Method and apparatus for finding stick-up height of a pipe or finding a joint between two pipes in a drilling environment
08/21/2014US20140233353 Method and device for well communication
08/21/2014US20140232548 Alternating frequency time domain approach to calculate the forced response of drill strings
08/21/2014US20140231142 Drill bit systems with temperature sensors and applications using temperature sensor measurements
08/21/2014US20140231141 Systems and methods for automatic weight on bit sensor calibration and regulating buckling of a drillstring
08/21/2014US20140231079 Velocity sensor for a plunger lift system
08/21/2014US20140231077 Use of nanotracers for imaging and/or monitoring fluid flow and improved oil recovery
08/21/2014US20140231074 Methods and Apparatus for Determining Downhole Parameters
08/21/2014US20140231073 Method of incorporating remote communication with oilfield tubular handling apparatus
08/21/2014US20140231072 Method and system of planning and/or drilling wellbores
08/21/2014US20140231071 Systems and Methods of Positive Indication of Actuation of a Downhole Tool
08/21/2014US20140231066 Coiled Tubing System with Multiple Integral Pressure Sensors and DTS
08/21/2014US20140230538 System And Method for Removing Noise From Measurement Data
08/21/2014US20140230537 Method and apparatus for use of electronic pressure gauge in extreme high temperature environment
08/21/2014DE102012109556B4 Verfahren und System zur Übertragung von Daten in einem Erdbohrloch sowie mobile Einheit und Basiseinheit hierzu Method and system for transmitting data in an earth borehole and mobile unit and base unit for this purpose
08/21/2014CA2843625A1 Use of nanotracers for imaging and/or monitoring fluid flow and improved oil recovery
08/20/2014EP2766569A1 Formation pressure sensing system
08/20/2014EP2766568A1 Analysis of drillstring dynamics using a angular rate sensor
08/20/2014EP2766567A1 Apparatus and method for determining the direction east
08/19/2014US8812281 Methods for designing secondary cutting structures for a bottom hole assembly
08/19/2014US8812238 Systems and methods for analyzing flowback compositions in real time
08/19/2014US8812236 Method for using particle size analysis in near time or real time to create a proper particle size distribution within a drilling fluid management system for improved well drilling efficiency
08/19/2014US8811776 Temperature sensor using an optical fiber
08/19/2014US8811118 Downhole noise cancellation in mud-pulse telemetry
08/19/2014US8811114 Imaging of formation structure ahead of the drill-bit
08/19/2014US8810428 Electrical transmission between rotating and non-rotating members
08/19/2014US8810247 Electromagnetic orientation system for deep wells
08/19/2014US8807227 Method and apparatus for pressure testing a tubular body
08/19/2014US8807225 Methods of using enhanced wellbore electrical cables
08/19/2014US8807212 Pressure measurement in highly deviated wells
08/19/2014CA2843170A1 Moving visualizations between displays and contexts
08/14/2014WO2014124254A2 Interferometric processing detect subterranean geological boundaries
08/14/2014WO2014124215A2 Borehole image compression
08/14/2014WO2014123800A1 Casing collar location using elecromagnetic wave phase shift measurement
08/14/2014WO2014123672A1 Hydrophobic paramagnetic nanoparticles as intelligent crude oil tracers
08/14/2014WO2014123549A1 Wireless activatable valve assembly
08/14/2014WO2014123540A1 Wireless activatable valve assembly
08/14/2014WO2014123539A1 Electronic control multi-position icd
08/14/2014WO2014121403A1 Acoustic transmitter for transmitting a signal through a downhole medium
08/14/2014WO2014100032A4 System and method for production reservoir and well management using continuous chemical measurement
08/14/2014US20140224539 Pdc sensing element fabrication process and tool
08/14/2014US20140224482 Subterranean Formation Oil Mobility Quicklook
08/14/2014US20140224481 Method and device for supplying at least one electrical consumer of a drill pipe with an operating voltage
08/14/2014US20140224000 Estimating Oil Viscosity
08/14/2014DE102004035772B4 System und Verfahren zum Messen von Bohrlochparametern während des Bohrens System and method for measuring downhole parameters during drilling
08/13/2014EP2764207A1 Wellbore influx detection with drill string distributed measurements
08/13/2014EP2764206A1 Fast mud gas logging using tandem mass spectroscopy
08/13/2014EP2764200A2 System for real-time monitoring and transmitting hydraulic fracture seismic events to surface using the pilot hole of the treatment well as the monitoring well
08/13/2014EP2764199A1 Debris resistant internal tubular testing system
08/13/2014CN203769770U 一种石油井下随钻气体检测装置 A petroleum downhole drilling gas detection device
08/13/2014CN203769767U 水平井物理模拟实验装置 Horizontal wells physical simulation device
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