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)
04/2014
04/01/2014US8684078 System and method for controlling fluid pumps to achieve desired levels
04/01/2014US8683859 Pressure management system for well casing annuli
04/01/2014CA2747497C Apparatus and method for depth referencing downhole tubular strings
04/01/2014CA2657629C Method and apparatus for locating a plug within the well
04/01/2014CA2607420C Method for detecting fluid leakage from a subterranean formation
04/01/2014CA2571190C A method of filtering pump noise
04/01/2014CA2511788C Apparatus and system for well placement and reservoir characterization
04/01/2014CA2446287C System and method for estimating multi-phase fluid rates in a subterranean well
03/2014
03/27/2014WO2014047599A1 Positive displacement motor (pdm) rotary steerable system (rss) and apparatus
03/27/2014WO2014047597A1 System and method for wireless drilling and non-rotating mining extenders in a drilling operation
03/27/2014WO2014047596A1 Coiled tube drilling bottom hole assembly having wireless power and data connection
03/27/2014WO2014047552A1 System and method for power transmission in a bottom hole assembly
03/27/2014WO2014047543A1 Drilling bottom hole assembly having wireless power and data connection
03/27/2014WO2014047541A1 System and method for wireless power and data transmission in a rotary steerable system
03/27/2014WO2014047537A1 Mechanical caliper system for a logging while drilling (lwd) borehole caliper
03/27/2014WO2014047534A1 Casing drilling bottom hole assembly having wireless power and data connection
03/27/2014WO2014047375A1 Method to predict overpressure uncertainty from normal compaction trendline uncertainty
03/27/2014WO2014047276A1 Housing for downhole measurement
03/27/2014WO2014047228A1 Single trip multi-zone drill stem test system
03/27/2014WO2014047063A1 Pipe-in-pipe wired telemetry system
03/27/2014WO2014046641A1 Method and system of a neutron tube
03/27/2014WO2014044628A1 Method of orienting a second borehole relative to a first borehole
03/27/2014WO2014043751A1 Multifunction orientation system
03/27/2014WO2013101694A3 Downhole ultrasonic transducer and method of making same
03/27/2014US20140088875 Pumpjack torque fill estimation
03/27/2014US20140083773 Reliability for Electromagnetic Data Telemetry for Downhole Application on Well Drilling Operations
03/27/2014US20140083771 Mechanical Caliper System For A Logging While Drilling (LWD) Borehole Caliper
03/27/2014US20140083770 System And Method For Wireless Drilling And Non-Rotating Mining Extenders In A Drilling Operation
03/27/2014US20140083688 Systems and methods of harvesting information from a well-site
03/27/2014US20140083686 In-Line Sand Screen Gauge Carrier
03/27/2014US20140083685 Tubing conveyed multiple zone integrated intelligent well completion
03/27/2014US20140083684 Tubing conveyed multiple zone integrated intelligent well completion
03/27/2014US20140083683 Completion assembly and methods for use thereof
03/27/2014US20140083682 Single Trip Multi-Zone Completion Systems and Methods
03/27/2014US20140083681 Seismic monitoring system and method
03/27/2014US20140083178 Snorkel Tube with Debris Barrier for Electronic Gauges Placed on Sand Screens
03/26/2014EP2710226A2 Systems and methods for single-phase fluid sampling
03/26/2014EP2710225A2 Verification of swelling in a well
03/26/2014EP2710224A2 Determining whether a wellbore sealing operation has been performed correctly
03/26/2014EP2710216A1 Mobile pressure optimization unit for drilling operations
03/26/2014CN203499678U Tracing relevant flow logging instrument based on double-channel releaser and single detection system
03/26/2014CN203499677U Oil well liquid level tester connector
03/26/2014CN203499676U Hinge type laser projection screw angular difference positioning instrument
03/26/2014CN203499675U Deep well electromagnetic wave measurement while drilling system
03/26/2014CN203499674U Drill collar connecting rack of inclinometer while drilling
03/26/2014CN203499673U Radial vibration reduction module of inclinometer while drilling
03/26/2014CN203499672U Adjustable type key-escaping prevention ejector rod
03/26/2014CN203499671U Parameter measuring device for underground drill column
03/26/2014CN203499670U Steel wire rope groove hopping preventing protecting equipment for logging
03/26/2014CN203499669U Resistivity tool and MWD (measurement while drilling) flexible connection system
03/26/2014CN203499668U Calibration device of neutron logging instrument
03/26/2014CN203499618U Gas drive oil production annular test decentralized wellhead device
03/26/2014CN203499589U Centering device
03/26/2014CN103688021A Subsea communication system
03/26/2014CN103688020A Formation testing in managed pressure drilling
03/26/2014CN103670964A Earthquake prevention geothermal power generation device
03/26/2014CN103670390A Water flooded layer well logging evaluation method and system
03/26/2014CN103670382A Drill core direction recovery method
03/26/2014CN103670381A Slurry negative pulse data download coding method for well drilling
03/26/2014CN103670380A Down-hole slurry pulse signal generation device
03/26/2014CN103670379A Boundary measurement device and method while drilling by utilizing high-frequency magnetometer
03/26/2014CN103670378A Artificial lift underground real-time monitoring device
03/26/2014CN103670377A Double-sensor pressure gauge for underground coal-bed gas
03/26/2014CN103670376A Integrated wireless long-transmission pressure temperature collector
03/26/2014CN103670375A Underground centralizer of gyro inclinometer for freezing hole
03/26/2014CN103670374A Hole drilling track measuring system for rotary drilling
03/26/2014CN103670373A Method and system for diagnosing faults of pumping unit
03/26/2014CN103670372A System and method for judging strain of casing string of thermal production well
03/26/2014CN103670371A Mining explosion-proof detecting device
03/26/2014CN103670370A Nuclear magnetic resonance logger curing probe
03/26/2014CN103670369A Method and device for judging communication state between injection wells and production wells
03/26/2014CN103670368A Gas-liquid two-phase metering device
03/26/2014CN103670367A Detection performance testing device of array sensing well detection instrument
03/26/2014CN103670366A Downhole wireless charging mechanical device
03/26/2014CN103670365A Fixing structure for transformer pup joint and transformer pup joint
03/26/2014CN103670356A Temperature-variable tracer composite for combustion in situ, distribution map of temperature fields of combustion in situ, production method of distribution map and development method of combustion in situ
03/26/2014CN103669427A Tool and method for measuring thickness of sediment during construction of cast-in-place piles and underground diaphragm walls
03/26/2014CN103114847B Oil field underground liquid level detection method and device
03/26/2014CN102536207B Gyro inclinometer attitude measurement solving method applicable to measurement of low well deviation angle
03/26/2014CN102373919B Experimental apparatus for evaluating coalbed methane cave well completion
03/26/2014CN102278108B Calibration method for continuous measurement mode of small-bore directional gyro inclinometer
03/26/2014CN102140913B Small-diameter directional gyro inclinometer for drilling
03/25/2014US8682589 Apparatus and method for managing supply of additive at wellsites
03/25/2014US8682587 Method and apparatus for determining the permeability of earth formations
03/25/2014US8680865 Single well reservoir imaging apparatus and methods
03/25/2014US8680864 Flux plane locating in an underground drilling system
03/25/2014US8680456 Methods and apparatus for determination of parameters related to the movement of a coiled tubing string
03/25/2014US8677815 Apparatus for a borehole influx fluid parameters measurement
03/25/2014US8677814 Device for extracting at least one type of gas contained in a drilling mud, an analysis arrangement and a related extraction method
03/25/2014CA2657996C Method for comparing and back allocating production
03/25/2014CA2527297C A probe for measuring the electromagnetic properties of a down-hole material
03/21/2014CA2827351A1 Cloud computing method for geosteering directional drilling apparatus
03/21/2014CA2827254A1 Cloud computing system for real-time streaming of well logging data with self-aligning satellites
03/20/2014WO2014043467A1 System and method for generating profile-based alerts/alarms
03/20/2014WO2014043464A1 Hydraulic oil well pumping system, and method for pumping hydrocarbon fluids from a wellbore
03/20/2014WO2014043181A1 Systems and methods for in situ monitoring of cement slurry locations and setting processes thereof
03/20/2014WO2014043073A2 Early detection and anti-collision system
03/20/2014WO2014042903A1 Method for monitoring the properties of a fluid cement composition in a flow|path
03/20/2014WO2014042874A1 Systems and methods for detecting microannulus formation and remediation
03/20/2014WO2014042867A1 Systems, methods, and apparatuses for in situ monitoring of cement fluid compositions and setting processes thereof
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