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)
10/2014
10/02/2014US20140290350 Well Data Acquisition Tool Probe Guard
10/02/2014DE102013205319A1 Bohr- und Düsenstrahlgestänge Drilling and jet linkage
10/01/2014EP2783189A1 Distributed two dimensional fluid sensor
09/2014
09/30/2014US8849640 System and method for planning a drilling operation
09/30/2014US8849594 Methods for measuring leakage rate and inferring production rate of an oilfield downhole pump
09/30/2014US8849572 Apparatus for determining the concentration of a conductive fluid present in a fluid filled borehole
09/30/2014US8848485 Sonic/acoustic monitoring using optical distributed acoustic sensing
09/30/2014US8844648 System and method for EM ranging in oil-based mud
09/30/2014US8844627 Intelligent well system and method
09/30/2014US8844626 Method and apparatus for autonomous oil and gas well down-hole pump leakage testing
09/30/2014US8844618 Smart drop-off tool and hang-off tool for a logging string
09/30/2014CA2753420C System and method for wellbore monitoring
09/25/2014WO2014153460A2 System and method for controlling a downhole tool
09/25/2014WO2014153378A1 Acoustic detection system
09/25/2014WO2014153084A2 Advanced perforation modeling
09/25/2014WO2014152019A1 Directional drilling communication protocols, apparatus and methods
09/25/2014WO2014151440A1 Targeted survey design under uncertainty
09/25/2014WO2014150389A2 Well logging apparatus and system
09/25/2014WO2014150095A1 Monitoring hydraulic fracturing
09/25/2014WO2014150051A1 Measuring torque in a downhole environment
09/25/2014WO2014149613A1 Method and system for monitoring subsurface injection processes using a borehole electromagnetic source
09/25/2014WO2014149556A1 Method of determination of fracture extent
09/25/2014WO2014149229A1 Distributed strain and temperature sensing system
09/25/2014WO2014149227A1 Remote pumped dual core optical fiber system for use in subterranean wells
09/25/2014WO2014149048A1 In-situ geo-mechanical testing
09/25/2014WO2014149030A1 Systems and methods for optimizing gradient measurements in ranging operations
09/25/2014WO2014146728A2 Modified tubular
09/25/2014WO2014146207A1 Microwave communication system for downhole drilling
09/25/2014US20140286538 LWD Real-Time Borehole Image Transmission
09/25/2014US20140286130 Acoustic Transceiver with Adjacent Mass Guided by Membranes
09/25/2014US20140284137 Protection of Electronic Devices Used with Perforating Guns
09/25/2014US20140284104 System and method for controlling a downhole tool
09/25/2014US20140284103 Monitoring System for Drilling Instruments
09/25/2014US20140284050 Downhole Pressure Compensator and Method of Same
09/25/2014US20140284049 Method of Determination of Fracture Extent
09/24/2014EP2780742A1 Apparatus and methods for monitoring a core during coring operations
09/24/2014EP2780548A1 Apparatus and method to produce data pulses in a drill string
09/24/2014EP2780547A2 Enhanced resistivity measurement apparatus, methods, and systems
09/24/2014EP2780546A1 Directing a drilling operation using an optical computation element
09/24/2014EP2780545A2 Methods for geosteering a drill bit in real time using drilling acoustic signals
09/24/2014EP2780535A1 Gas lift kickover system
09/23/2014US8843328 Hydraulic control system monitoring apparatus and method
09/23/2014US8843220 Position and velocity measurement tool for standard and directional drilling
09/23/2014US8842744 System for communicating over a power cable
09/23/2014US8842020 System and method for detecting casing in a formation using current
09/23/2014US8841603 Illumination for optical scan and measurement
09/23/2014US8839885 Latching configuration for a microtunneling apparatus
09/23/2014US8839883 Piston tractor system for use in subterranean wells
09/23/2014US8839858 Drilling wells in compartmentalized reservoirs
09/23/2014US8839850 Active integrated completion installation system and method
09/23/2014CA2683618C Inverse-vector method for smoothing dips and azimuths
09/18/2014WO2014145782A1 Inground power control and methods
09/18/2014WO2014144917A1 Reservoir characterization and hydraulic fracture evaluation
09/18/2014WO2014144887A2 High power laser flow assurance systems, tools and methods
09/18/2014WO2014144392A1 Solvent-free method for measuring hydrocarbons in water
09/18/2014WO2014143433A1 Composite isolation joint for gap sub or internal gap
09/18/2014WO2014143425A1 Passive acoustic resonator for fiber optic cable tubing
09/18/2014WO2014143052A1 Downhole formation testing and sampling apparatus having a deployment linkage assembly
09/18/2014WO2014143003A1 Non-electronic air chamber pressure sensor
09/18/2014WO2014142899A1 Pressure responsive downhole tool having an adjustable shear thread retaining mechanism and related methods
09/18/2014WO2014142796A1 Downhole ranging from multiple boreholes
09/18/2014WO2014142783A1 Digital underreamer
09/18/2014WO2014142698A1 Method for measuring the flow rate of a multi-phase liquid
09/18/2014WO2014140364A1 Well tool for use in a well pipe
09/18/2014WO2014139985A1 A completion component with position detection
09/18/2014WO2014139593A1 Acoustic measurement tool
09/18/2014WO2014139585A1 Method for determining a position of a water/cement boundary between pipes in a hydrocarbon well
09/18/2014WO2014139584A1 Well tool
09/18/2014WO2014139583A1 Well tool for use in a well pipe
09/18/2014WO2014138963A1 Acoustic receiver for use on a drill string
09/18/2014US20140278112 Testing water contamination around oil or gas wells
09/18/2014US20140278111 Borehole instrument for borehole profiling and imaging
09/18/2014US20140273831 Wellbore Servicing Tools, Systems and Methods Utilizing Near-Field Communication
09/18/2014US20140269188 Robust telemetry repeater network system and method
09/18/2014US20140266772 Wellbore Servicing Tools, Systems and Methods Utilizing Near-Field Communication
09/18/2014US20140266771 Directional drilling communication protocols, apparatus and methods
09/18/2014US20140266770 Inground device with advanced transmit power control and associated methods
09/18/2014US20140266769 Network telemetry system and method
09/18/2014US20140266212 Multi-frequency boring tool locating system and method
09/18/2014US20140266211 Method and Apparatus for Passive Detection of Near-Surface Human-Scale Underground Anomalies Using Earth Field Measurements
09/18/2014US20140262516 Method and apparatus for measuring drilling fluid properties
09/18/2014US20140262502 Wellbore Servicing Tools, Systems and Methods Utilizing Near-Field Communication
09/18/2014US20140262320 Wellbore Servicing Tools, Systems and Methods Utilizing Near-Field Communication
09/18/2014US20140262314 System for detecting, containing and removing hydrocarbon leaks in a subsea environment
09/18/2014US20140262306 Subsea Test Adaptor for Calibration of Subsea Multi-Phase Flow Meter During Initial Clean-Up and Test and Methods of Using Same
09/18/2014US20140262252 Acoustic line tracing system and method for fluid transfer system
09/18/2014US20140262247 Composition and method for hydraulic fracturing and evaluation and diagnostics of hydraulic fractures using infused porous ceramic proppant
09/18/2014US20140262246 Method for controlling well bore pressure based on model prediction control theory and systems theory
09/18/2014US20140262245 Fluid Level Determination Apparatus and Method of Determining a Fluid Level in a Hydrocarbon Well
09/18/2014US20140262244 Apparatus and Method for Determining Fluid Interface Proximate an Electrical Submersible Pump and Operating The Same in Response Thereto
09/18/2014US20140262240 Producing Hydrocarbons from a Formation
09/18/2014US20140262237 Wellbore Servicing Tools, Systems and Methods Utilizing Near-Field Communication
09/18/2014US20140262236 Wellbore Servicing Tools, Systems and Methods Utilizing Near-Field Communication
09/18/2014US20140262234 Dual Magnetic Sensor Actuation Assembly
09/18/2014US20140262232 Controlling Net Treating Pressure in a Subterranean Region
09/18/2014US20140262220 Cellar Oil Recovery Techniques for In Situ Operations
09/18/2014US20140260592 Identifying Forces in a Well Bore
09/18/2014US20140260591 Protection of Electronic Devices Used with Perforating Guns
09/18/2014US20140260590 Borehole profiling and imaging
09/18/2014US20140260589 Downhole tool for determining flow velocity
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