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)
03/2014
03/11/2014US8669516 Using LWT service to identify loss circulation areas in a wellbore
03/11/2014US8668030 Establishing positions of locating field detectors and path mapping in underground boring tool applications
03/11/2014US8668008 Atomic battery powered downhole completions assembly
03/11/2014CA2711853C Electromagnetic telemetry assembly with protected antenna
03/11/2014CA2636573C Improved spindle for mud pulse telemetry applications
03/06/2014WO2014036086A1 System and method for determining fault location
03/06/2014WO2014035975A1 Subsea electronic data system
03/06/2014WO2014035914A1 System and method for downhole signal enhancement
03/06/2014WO2014035761A1 Wellbore caliper with maximum diameter seeking feature
03/06/2014WO2014035551A1 Determining surface wetting of rock with changing well fluids
03/06/2014WO2014035424A1 System and method for measuring temperature using an opto-analytical device
03/06/2014WO2014035423A1 System and method for analyzing cuttings using an opto-analytical device
03/06/2014WO2014035421A1 System and method for analyzing downhole drilling parameters using an opto-analytical device
03/06/2014WO2014035285A1 A method of electromagnetic defectoscopy for multi-string wells and the electromagnetic downhole defectoscope.
03/06/2014WO2014011905A3 System, method & computer program product to simulate drilling event scenarios
03/06/2014WO2014011793A3 System, method & computer program product to simulate rupture disk and syntactic foam trapped annular pressure mitigation in downhole environments
03/06/2014WO2014011658A3 System, method & computer program product to simulate the progressive failure of rupture disks in downhole environments
03/06/2014WO2013137992A3 Downhole systems and methods for water source determination
03/06/2014WO2013103789A3 Gravel pack inner string hydraulic locating device
03/06/2014US20140062716 System and method for determining fault location
03/06/2014US20140062715 System and method for determining fault location
03/06/2014US20140060933 Drilling tool, apparatus and method for underreaming and simultaneously monitoring and controlling wellbore diameter
03/06/2014US20140060821 Downhole x-ray source fluid identification system and method
03/06/2014US20140060820 Drill bit for performing electromagnetic measurements in a subterranean formation
03/06/2014US20140060173 Slim Capacitance Sensor for Downhole Applications
03/06/2014US20140059874 Wellbore caliper with maximum diameter seeking feature
03/06/2014CA2861453A1 A method of electromagnetic defectoscopy for multi-string wells and the electromagnetic downhole defectoscope.
03/05/2014EP2702247A2 Methods of employing and using a hybrid transponder system for long-range sensing and 3d localization
03/05/2014EP2702246A1 Downhole tool
03/05/2014EP2702245A2 Hybrid transponder system for long-range sensing and 3d localization
03/05/2014EP2702241A2 Flow-induced electrostatic power generator for downhole use in oil and gas wells
03/05/2014CN203463124U Length-measurable grouting pipe
03/05/2014CN203463104U Drilling fluid leakage detection device for petroleum drilling
03/05/2014CN203463103U Three-parameter monitoring and regulation integrated layered testing distribution instrument
03/05/2014CN203463102U Workover pressure testing device for oil-water-gas well
03/05/2014CN203463101U Underground temperature measuring and pressure measuring system
03/05/2014CN203463100U Well depth surveying device
03/05/2014CN203463099U Natural gamma combined damping structure
03/05/2014CN203463098U Single well water containing remote metering device
03/05/2014CN203463097U Tool rack for sand content tester
03/05/2014CN203463096U Integral wireless tension test device
03/05/2014CN203463095U Chemical sand control and sand consolidation evaluation experiment device
03/05/2014CN203463090U Experiment device for simulating effects of polymer on storage layer sand generating and preventing results and sand filling model thereof
03/05/2014CN203463009U Working condition detection system of adjustable stabilizer
03/05/2014CN103618656A Master-slave nodes of networked logging downhole instrument and data processing method thereof
03/05/2014CN103615237A Microelement interwell tracer agent and application thereof
03/05/2014CN103615236A Method for real-time monitoring of formation pressure by means of remote mud logging information
03/05/2014CN103615235A Method for real-time measuring and monitoring of liquid level of dissolving cavity of sylvite solid ore drill well through water-dissolving method
03/05/2014CN103615234A Multi-core connector butt-joint positioning structure of logging instrument
03/05/2014CN103615233A Method and equipment for measuring axial force and lateral force of casing pipe in three-dimensional borehole
03/05/2014CN103615232A Data monitoring system and method based on drilling parameter instrument
03/05/2014CN103615231A Synchronous on-line measurement device for steam-injection type oil well temperature, pressure and steam quality
03/05/2014CN103615230A Method for establishing double-shale-indicative-factor water saturation model
03/05/2014CN103615199A Oil extraction processing device for achieving steam injection, oil extraction and temperature-pressure real-time monitoring in shaft of horizontal well with three tubes
03/05/2014CN102434149B Mean hole diameter measuring method
03/05/2014CN102134993B Simulation experiment device for controlling production of coal bed methane vertical well
03/05/2014CN102121379B Surge and wave prevention laser liquid level monitor
03/05/2014CN101397901B Logging while producing apparatus and method
03/05/2014CA2809843A1 Tool for use in well monitoring
03/04/2014US8666908 System and method for acquiring information during underground drilling operations
03/04/2014US8665110 Transmitting electric power into a bore hole
03/04/2014US8665108 Apparatus and method for quality assessment of downhole data
03/04/2014US8662200 Sonde with integral pressure sensor and method
03/04/2014US8662168 Method of determining a level of a fluid in a well
03/04/2014US8661888 Method of studying rock mass properties and apparatus for the implementation thereof
03/04/2014CA2603138C Intelligent efficient servo-actuator for a downhole pulser with novel brake and lock
02/2014
02/28/2014CA2825508A1 Device for reducing rod string backspin in progressive cavity pump
02/28/2014CA2822878A1 System, method and apparatus for computing, monitoring, measuring, optimizing and allocating power and energy for a rod pumping system
02/27/2014WO2014032003A1 System and method for performing stimulation operations
02/27/2014WO2014031663A1 Drill string inground isolator and method
02/27/2014WO2014031499A1 Mud pulse telemetry systems and methods using receive array processing
02/27/2014WO2014031108A1 Turbine drilling assembly with near drill bit sensors
02/27/2014WO2014029030A1 Apparatus and method for sensing a pipe coupler within an oil well structure
02/27/2014WO2013164570A3 Determining the depth and orientation of a feature in a wellbore
02/27/2014WO2013126114A3 Acoustic frequency interrogation and data system
02/27/2014WO2013103786A3 Gravel pack inner string adjustment device
02/27/2014US20140056101 System and method for sonic wave measurements using an acoustic beam source
02/27/2014US20140055279 Methods and apparatus for transmission of telemetry data
02/27/2014US20140055277 System and Method for Using Dual Telemetry
02/27/2014US20140054036 Apparatus and Method for Drilling a Wellbore, Setting a Liner and Cementing the Wellbore During a Single Trip
02/27/2014US20140054031 Method and system for well and reservoir management in open hole completions as well as method and system for producing crude oil
02/27/2014US20140054029 Pressure measurement in highly deviated wells
02/26/2014EP2700923A1 Methods and apparatus for determining fluid characteristics
02/26/2014EP2700785A2 Natural fracture injection test
02/26/2014EP2699876A1 System and method for measuring flow rates for individual petroleum wells in a well pad field
02/26/2014CN203456686U Radar imaging logger internal connector
02/26/2014CN203454998U Roadway direction adjusting plate
02/26/2014CN203452778U Dipole array acoustilog instrument
02/26/2014CN203452777U Hard electrode combined well logging instrument used for measuring drilled well
02/26/2014CN203452776U Continuous wave mud pulse generator
02/26/2014CN203452775U Portable combustible gas wireless sensing device for petroleum drilling
02/26/2014CN203452774U Portable hydrogen sulfide wireless sensing device for petroleum drilling
02/26/2014CN203452773U Rapid horizontal well water exploration tubular column utilizing empty return liquid of oil sleeve ring
02/26/2014CN203452772U Portable temperature wireless sensing device for petroleum drilling fluid
02/26/2014CN203452771U Detachable type pipeline temperature measuring device
02/26/2014CN203452770U Well depth measurement scale
02/26/2014CN203452769U Piston type pressure balance device for oil logging instrument
02/26/2014CN203452768U High-temperature high-pressure filtration meter
02/26/2014CN203452767U Automatic metering device for oil well tipping bucket
02/26/2014CN203452702U Transmission tool for through-drill-rod open-hole well logging instrument
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