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
10/28/2014US8869885 Fluid metering tool with feedback arrangement and method
10/23/2014US20140312752 Longitudinal Absorber for Downhole Tool Chassis
10/23/2014US20140311802 Circumferential and longitudinal cutter coverage in continuation of a first bit diameter to a second expandable reamer diameter.
10/23/2014US20140311755 Apparatus for driving and maneuvering wireline logging tools in high-angled wells
10/23/2014US20140311737 Formation Testing
10/23/2014US20140311235 Downhole Quartz Gauge with Minimal Electronics
10/21/2014US8867040 In-situ detection and analysis of methane in coal bed methane formations with spectrometers
10/21/2014US8866632 Method for communicating with logging tools
10/21/2014US8863861 Downhole telemetry apparatus and method
10/21/2014US8863860 System and method of improved depth of cut control of drilling tools
10/21/2014US8863859 Method for determining the wear of a force-loaded linkage of an earth-working device
10/21/2014US8863838 Use of hexose oxidases to create hydrogen peroxide in aqueous well treatment fluids
10/21/2014US8863837 Plunger lift control system arrangement
10/21/2014US8863836 Systems and methods for logging cased wellbores
10/21/2014US8863835 Variable frequency fluid oscillators for use with a subterranean well
10/21/2014US8863824 Downhole sensor interface
10/16/2014US20140307527 Apparatus and method to produce data pulses in a drill string
10/16/2014US20140305638 Modeling of interaction of hydraulic fractures in complex fracture networks
10/16/2014US20140305637 Downhole temperature calculation
10/16/2014US20140305200 In situ geophysical sensing apparatus method and system
10/14/2014US8860583 Mud channel characterization over depth
10/14/2014US8860582 Wellbore telemetry and noise cancellation systems and methods for the same
10/14/2014US8857539 Mining drill with gradient sensing
10/14/2014US8857538 Method for drilling a borehole
10/14/2014US8857524 Method and apparatus for suspending a cable in a pipe
10/14/2014US8857510 System and method for determining movement of a drilling component in a wellbore
10/14/2014US8857507 Downhole communication system and method
10/14/2014US8857254 Methods and systems for acquiring acceleration waveforms in a borehole
10/09/2014WO2014165389A1 Downhole whirl detection while drilling
10/09/2014WO2014165314A2 Surface wellbore operating equipment utilizing mems sensors
10/09/2014WO2014164944A1 System and method for detecting structural integrity of a well casing
10/09/2014WO2014164758A2 Cement plug location
10/09/2014WO2014164002A1 Neuronal networks for controlling downhole processes
10/09/2014WO2014163991A1 Flow sensing fiber optic cable and system
10/09/2014WO2014163822A2 Wellbore servicing tools, systems and methods utilizing near-field communication
10/09/2014WO2014163821A2 Wellbore servicing tools, systems and methods utilizing near-field communication
10/09/2014WO2014163820A2 Wellbore servicing tools, systems and methods utilizing near-field communication
10/09/2014WO2014163818A2 Wellbore servicing tools, systems and methods utilizing near-field communication
10/09/2014WO2014163817A2 Wellbore servicing tools, systems and methods utilizing near-field communication
10/09/2014WO2014163816A2 Wellbore servicing tools, systems and methods utilizing near-field communication
10/09/2014WO2014163508A1 A petroleum well injection system for an intervention cable with a well tool run into or out of a well during a well operation
10/09/2014WO2014161056A1 System for monitoring the wires of flexible pipe tensile armour and method of use
10/09/2014US20140301426 Temperature assessment using dielectric properties of an insulated conductor heater with selected electrical insulation
10/09/2014US20140301164 Acoustic transducer apparatus, systems, and methods
10/09/2014US20140299756 System and method for providing a replenishable receptacle for tagger and/or tracer material in a wellbore
10/09/2014US20140299385 Cutters forming a helix oriented in the direction of reaming
10/09/2014US20140299377 System and console for rig site fluid management at a well site
10/09/2014US20140299316 Well tool pressure testing
10/09/2014US20140299315 System and method for performing stimulation operations
10/09/2014US20140299311 System and Method for Accessing Subterranean Deposits
10/08/2014EP2786179A1 Source spectrum control of nonlinearities in optical waveguides
10/08/2014EP2785972A2 An adaptive method for high data rate communication in wells
10/08/2014EP2785971A1 Use of downhole pressure measurements while drilling to detect and mitigate influxes
10/08/2014EP2785970A2 Methods for geosteering a drill bit in real time using surface acoustic signals
10/08/2014EP2785966A1 Pressure pulse-initiated flow restrictor bypass system
10/08/2014EP2785964A1 Pressure integrity testing system
10/07/2014US8855986 Iterative method and system to construct robust proxy models for reservoir simulation
10/07/2014US8855933 Systems and methods for determining the moments and forces of two concentric pipes within a wellbore
10/07/2014US8853619 Method for detecting tracer compounds for hydrocarbon production
10/07/2014US8851193 Self-centering downhole tool
10/07/2014US8851175 Instrumented disconnecting tubular joint
10/07/2014US8851166 Test packer and method for use
10/07/2014US8850899 Production logging processes and systems
10/07/2014US8850879 Sample channel for a sensor for measuring fluid properties
10/02/2014WO2014160994A1 Image symmetry for dip determination
10/02/2014WO2014160915A1 System and method for identifying levels or interfaces of media in a vessel
10/02/2014WO2014160914A1 Method and system for determining flow distribution through a component
10/02/2014WO2014160858A1 Acoustic isolator for downhole tools
10/02/2014WO2014160855A1 Acoustic receiver assembly for downhole tools
10/02/2014WO2014160793A2 Surface gas correction by group contribution equilibrium model
10/02/2014WO2014160741A1 Automatic geosteering and evolutionary algorithm for use with same
10/02/2014WO2014160737A1 Systems and methods for hybrid cable telemetry
10/02/2014WO2014160688A1 Fast inversion of mwd transient em data excited by a pulse of an arbitrary shape
10/02/2014WO2014160629A1 Automatic wellbore survey evaluation
10/02/2014WO2014160581A1 Shale fracture flow simulation apparatus
10/02/2014WO2014160580A1 Closed-loop geosteering device and method
10/02/2014WO2014160567A1 Closed loop control of drilling toolface
10/02/2014WO2014160561A1 Automated rig activity report generation
10/02/2014WO2014160035A1 Distributed sensing with a multi-phase drilling device
10/02/2014WO2014159861A1 Tool for measuring wellbore geometry
10/02/2014WO2014159526A1 Wellbore electrical isolation system
10/02/2014WO2014159496A1 Method to perform rapid formation fluid analysis
10/02/2014WO2014159293A1 Drill string inground isolator housing in an mwd system and method
10/02/2014WO2014159145A1 Monitoring produced water
10/02/2014WO2014159103A1 A system for detecting, containing and removing hydrocarbon leaks in a subsea environment
10/02/2014WO2014158651A1 Analyzying sand stabilization treatments
10/02/2014WO2014158622A1 Monitoring system for drilling instruments
10/02/2014WO2014158537A1 Lwd real-time borehole image transmission
10/02/2014WO2014158333A1 Producing hydrocarbons from a formation
10/02/2014WO2014158160A1 In-situ calibration of tools
10/02/2014WO2014153657A1 Electromagnetic communications system and method for a drilling operation
10/02/2014WO2014123800A9 Casing collar location using elecromagnetic wave phase shift measurement
10/02/2014US20140292530 Systems and Methods for Hybrid Cable Telemetry
10/02/2014US20140291500 Method for Evaluating Voids in a Subterranean Formation
10/02/2014US20140291499 Mining systems and methods
10/02/2014US20140291023 Monitoring of drilling operations with flow and density measurement
10/02/2014US20140290940 Systems and Methods for the Evaluation of Passive Pressure Containment Barriers
10/02/2014US20140290936 Hydraulic fracture monitoring using active seismic sources with receivers in the treatment well
10/02/2014US20140290930 Wired pipe coupler connector
10/02/2014US20140290352 Protection of Electronic Devices Used with Perforating Guns
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 ... 314