E21B 47 - Survey of boreholes or wells

Patents for E21B 47 - Survey of boreholes or wells (31,352)
12/2013
12/18/2013	CN203347784U Coal mine water level detection system
12/18/2013	CN203347783U Mine borehole imaging device hole inlet segment structure
12/18/2013	CN203347782U Ultra-deep well down-hole video imaging device
12/18/2013	CN203347781U Circumferential full-angle ultrasonic scanner
12/18/2013	CN203347780U Remote monitoring device for SAGD horizontal well
12/18/2013	CN203347779U Pressure-bearing case for petroleum logging instrument
12/18/2013	CN203347778U Guiding capability testing device for rotary guiding system
12/18/2013	CN203347774U Novel continuous metering separator
12/18/2013	CN203347773U Sampling type metering separator
12/18/2013	CN203347720U Intelligent well logging smoothing machine
12/18/2013	CN103459761A Service panel
12/18/2013	CN103459755A Automatic standpipe pressure control in drilling
12/18/2013	CN103452554A Flash evaporation prevention sealed sampling and metering device for high-temperature high-pressure saturated liquid
12/18/2013	CN103452547A Method and system for analyzing and processing subsequent flow data in well testing data
12/18/2013	CN103452546A High-precision and long-distance depth detecting device and method for drill hole by adopting inertia pressure wave
12/18/2013	CN103452545A Well depth measuring device
12/18/2013	CN103452544A Online detection method for oil pipe field
12/17/2013	US8612193 Processing and interpretation of real-time data from downhole and surface sensors
12/17/2013	US8611703 Temperature sensor using an optical fiber
12/17/2013	US8607864 Live bottom hole pressure for perforation/fracturing operations
12/17/2013	US8607863 System and method for downhole communication
12/17/2013	US8607628 Method for a formation properties determination
12/17/2013	CA2722128C Conductive fluid flow logging tool
12/15/2013	CA2818355A1 Closed loop well twinning methods
12/12/2013	WO2013185064A1 Communication in pipes using acoustic modems that provide minimal obstruction to fluid flow
12/12/2013	WO2013185005A2 Tachometer for downhole drilling motor
12/12/2013	WO2013184676A1 Wellbore influx detection in a marine riser
12/12/2013	WO2013184435A1 Lateral wellbore completion apparatus and method
12/12/2013	WO2013184432A1 Tubing test system
12/12/2013	WO2013184259A1 Systems and methods for distributed downhole sensing using a polymeric sensor system
12/12/2013	WO2013184245A1 Dual differential pressure multiphase flow meter
12/12/2013	WO2013184190A1 Assessing reservoir connectivity in hydrocarbon reservoirs
12/12/2013	WO2013184096A1 Downhole tools and oil field tubulars having internal sensors for wireless external communication
12/12/2013	WO2012160170A3 Wireline apparatus
12/12/2013	US20130329522 Location of downhole lines
12/12/2013	US20130327532 Remote Operation of Cementing Head
12/12/2013	US20130327522 Fluid distribution determination and optimization with real time temperature measurement
12/12/2013	US20130327520 System and Method for Measuring Well Flow Rate
12/12/2013	US20130327519 Tubing test system
12/12/2013	US20130327138 Systems and Methods for Distributed Downhole Sensing Using a Polymeric Sensor System
12/12/2013	US20130327137 Method For Measuring Pressure In An Underground Formation
12/12/2013	CA2875974A1 Flow control system
12/12/2013	CA2875794A1 Tachometer for downhole drilling motor
12/12/2013	CA2875532A1 Communication in pipes using acoustic modems that provide minimal obstruction to fluid flow
12/11/2013	EP2672375A2 Information pinning for contextual and task status awareness
12/11/2013	EP2671623A1 Method and arrangement for preventing hydrocarbon based deposition
12/11/2013	EP2670951A2 Connection cartridge for downhole string
12/11/2013	EP2670950A1 Subsea communication system
12/11/2013	EP2670949A2 Apparatus and methods for tracking the location of fracturing fluid in a subterranean formation
12/11/2013	EP2670948A2 Device for verifying detonator connection
12/11/2013	EP2670944A2 Downhole pressure relief apparatus
12/11/2013	EP2670936A2 Method for strengthening a wellbore
12/11/2013	CN203337129U Borehole imager for coal mine
12/11/2013	CN203335066U Ground monitoring device for early overflow and leakage
12/11/2013	CN203335065U Cable depth detection device
12/11/2013	CN203335064U Pressure monitoring device based on coal bed gas inflation underbalance
12/11/2013	CN203335063U Gas drilling depth detecting device
12/11/2013	CN203335062U Deep well high-temperature pulse generator of wireless inclinometer and wireless inclinometer
12/11/2013	CN203335061U Testing tool for measuring drilled pile dregs
12/11/2013	CN203335060U Rotation three-parameter short section
12/11/2013	CN203335059U Annular-separation type multi-phase flow metering device
12/11/2013	CN203335058U Coalbed-methane under-balanced horizontal well borehole cleaning monitoring device
12/11/2013	CN203335057U Radioactive source storage device
12/11/2013	CN203334991U Continuous pipe roller device with cable
12/11/2013	CN203334971U Adapter substitute of logging instrument
12/11/2013	CN103443657A Methods and systems of estimating formation parameters
12/11/2013	CN103438049A Oil cylinder of drilling and exploring measuring device
12/11/2013	CN103437939A Power generation device for underground sucker rod
12/11/2013	CN103437815A Safe auxiliary device for drilling well site of wireless sensor network
12/11/2013	CN103437761A Hard electrode combined logging instrument for logging drill well
12/11/2013	CN103437760A Method for rapidly evaluating oil-water layer through array induction data
12/11/2013	CN103437758A Downhole temperature and pressure measurement system
12/11/2013	CN103437757A Well drilling tension gauge
12/11/2013	CN103437756A Dipole array acoustic logging instrument
12/11/2013	CN103437755A Oil field single well liquid production metering device
12/11/2013	CN103437745A Experimental device for simulating influence of polymer on reservoir sand production and sand control effect and sand filling model
12/11/2013	CN101942990B On-line underground temperature measurement system
12/11/2013	CN101906962B Mechanical type tubing collar detection device
12/11/2013	CN101672179B Intelligent synchronous testing and adjusting method capable of simultaneously infusing, testing and regulating
12/10/2013	US8606523 Method to determine current condensate saturation in a near-wellbore zone in a gas-condensate formation
12/10/2013	US8606522 Method to determine current gas saturation in a near-wellbore zone in a volatile oil formation
12/10/2013	US8605548 Bi-directional wireless acoustic telemetry methods and systems for communicating data along a pipe
12/10/2013	US8603827 Tracer materials
12/10/2013	US8602099 Process for the production of mineral oil
12/10/2013	CA2621592C Method and system for setting and analyzing tubing target pressures for tongs
12/10/2013	CA2605292C U-shaped fiber optical cable assembly for use in a heated well and methods for installing and using the assembly
12/05/2013	WO2013181527A1 Dielectric contrast agents and methods
12/05/2013	WO2013181388A2 Systems and methods for detecting drillstring loads
12/05/2013	WO2013181303A1 Monitoring integrity of a riser pipe network
12/05/2013	WO2013181143A1 Smart flowback alarm to detect kicks and losses
12/05/2013	WO2013180574A1 Tracer device for downhole fluid processing
12/05/2013	WO2013178765A2 Methods and apparatus to detect fluid distributions
12/05/2013	WO2013154360A3 Water leak-detecting ground water pressure testing apparatus
12/05/2013	WO2013151985A3 Methods for determining wettability from nmr
12/05/2013	WO2013061065A3 Multilateral well control
12/05/2013	US20130319768 Systems and Methods for Detecting Drillstring Loads
12/05/2013	US20130319103 Dual Differential Pressure Multiphase Flow Meter
12/05/2013	CA2815906A1 Identifying reservoir drainage patterns from microseismic data
12/04/2013	EP2669716A1 Apparatus and methods for providing information about one or more subterranean variables
12/04/2013	EP2669468A1 Method of and apparatus for completing a well

1 ... 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 ... 314