E21B 47 - Survey of boreholes or wells

Patents for E21B 47 - Survey of boreholes or wells (31,352)
12/2013
12/04/2013	EP2668523A2 Apparatus and method for predicting vertical stress fields
12/04/2013	CN203327050U Underground modulator-demodulator based on Nios soft core
12/04/2013	CN203322026U SBT (Segmented Cement Bond Logging Tool) ball joint drive shaft
12/04/2013	CN203321513U Insulation connecting structure between electromagnetic wave measurement while drilling downhole instruments
12/04/2013	CN203321512U Constant-current transmitting device for measurement-while-drilling electromagnetic wave geosteering tool
12/04/2013	CN203321511U Self-adaptive power output device of measurement-while-drilling electromagnetic wave geosteering tool
12/04/2013	CN203321510U Well control pressure monitoring recording device
12/04/2013	CN203321509U Underwell storage type flow and contained water amount monitor
12/04/2013	CN203321508U Oil well casing pipe leakage searching tool
12/04/2013	CN203321507U Sectional flow rate and water content synchronous monitoring and water detection tubular column for multi-stage fractured horizontal well
12/04/2013	CN203321506U Wireless MWD (Measurement While Drilling) apparatus deploying and retracting device
12/04/2013	CN203321505U Real-time monitoring device for efficiency of sucker-rod pumping system
12/04/2013	CN203321504U Hole-in positioning and imaging device for efficient sampling
12/04/2013	CN203321503U Coiled plate type roller
12/04/2013	CN203321502U Data acquisition and processing system of instrument truck
12/04/2013	CN203321501U Dynamic seal pressure balancing device
12/04/2013	CN203321500U Skid-mounted metering device for oil wells
12/04/2013	CN203321499U Downhole high torque control test switch
12/04/2013	CN203321498U Winding sensor for fracturing operation
12/04/2013	CN203321497U Single-well oil and gas metering device for oilfields
12/04/2013	CN203321496U Winding sensor for acidizing operations
12/04/2013	CN203321495U Over-length minor-diameter continuous oil tube rapid prefabricating test instrument device
12/04/2013	CN203321494U Small-diameter electromagnetic flow comprehensive logging instrument
12/04/2013	CN203321493U Equipment for measuring specific resistance
12/04/2013	CN203321492U Intelligent digital display control device of double-end water shutoff device
12/04/2013	CN203321470U CT scanning system based on top gas injection multi-angle displacement process
12/04/2013	CN203321307U Drilling tool for measuring thickness of sea ice and river ice during drilling
12/04/2013	CN103429847A System and method to compensate for arbitrary optical fiber lead-ins in optical frequency domain reflectometry system
12/04/2013	CN103422852A Method of conversion and comparison for gas-logging values of different wells
12/04/2013	CN103422851A Method for determining intermittent pumping system through oil-well pump dynamic fullness well testing
12/04/2013	CN102704919B Frequency variable signal de-noising method and device for rotating magnetic field interwell distance measurement
12/04/2013	CN102619470B Method for controlling transverse vibration of drill string in process of reaming while drilling
12/04/2013	CN102278087B Wellhead butt joint device used for continuous pipeline test
12/04/2013	CN102031960B Method and device for measuring liquid level of oil well
12/04/2013	CN101694155B Underground eight-unit circumferential scanning sound-wave radiator
12/04/2013	CN101460703B Method and apparatus for hydraulic fracturing and monitoring
12/04/2013	CA2817558A1 Asynchronous ds-cdma receiver
12/03/2013	US8600115 Borehole image reconstruction using inversion and tool spatial sensitivity functions
12/03/2013	US8598882 Method of monitoring a hydrocarbon reservoir
12/03/2013	US8596385 System and method for determining incremental progression between survey points while drilling
12/03/2013	US8596383 Method for detecting hydrocarbon zones in a geological formation
12/03/2013	US8596382 Magnetic ranging while drilling using an electric dipole source and a magnetic field sensor
12/03/2013	US8596380 System and method for assessing hydrogen sulfide in a hydrocarbon extraction well in situ in an ongoing manner
12/03/2013	US8596379 System and method for assessing hydrogen sulfide in a hydrocarbon extraction well in situ in an ongoing manner
12/03/2013	US8596355 Optimized well spacing for in situ shale oil development
12/03/2013	US8596354 Detection of tracers used in hydrocarbon wells
12/03/2013	US8596353 Pressure measurement in highly deviated wells
12/03/2013	CA2747368C Permanent downhole deployment of optical sensors
12/03/2013	CA2655200C Modular geosteering tool assembly
11/2013
11/28/2013	WO2013177161A2 Methods and systems for testing the integrity of components of a hydrocarbon well system
11/28/2013	WO2013176648A1 Methods and systems for pressure testing components of a hydrocarbon well system
11/28/2013	WO2013028298A3 Fracturing process to enhance propping agent distribution to maximize connectivity between the formation and the wellbore
11/28/2013	US20130314709 Optical data transformation
11/28/2013	US20130312956 Spectral Analysis Techniques for Fluid Monitoring
11/27/2013	EP2666956A1 A modular electric system located under water
11/27/2013	EP2666038A2 High voltage insulating sleeve for nuclear well logging
11/27/2013	EP2665894A2 Telemetry operated circulation sub
11/27/2013	EP2665893A2 Downhole sand control apparatus and method with tool position sensor
11/27/2013	CN203308458U Pulser oil filling machine
11/27/2013	CN203308457U Gas drilling communication relay short section while drilling
11/27/2013	CN203308456U Drill column communication system, devices in same, ground walking locator, system for executing underground operation at least and communication system of system
11/27/2013	CN203308455U Mine negative pressure transmitter
11/27/2013	CN203308454U Portable laser included angle measurement apparatus
11/27/2013	CN203308453U Multipurpose inclinometer
11/27/2013	CN203308452U Pulser pressure compensating device
11/27/2013	CN203308451U Centering device rubber wing
11/27/2013	CN203308450U Quick measuring sensor device for screw pump
11/27/2013	CN203308449U Wax examining tubular column
11/27/2013	CN203308394U Single-point inclinometer variable-diameter axial vibration reducing device
11/27/2013	CN203307847U Detection device for sediment thickness in ground foundation engineering construction
11/27/2013	CN103410503A Continuous wave mud pulse generator
11/27/2013	CN103410502A Method for acquiring three-dimensional permeability fields of netted fracture-cave oil reservoirs
11/27/2013	CN103410501A Method and system for temperature drift compensation of electronic pressure gauge in mine
11/27/2013	CN103410500A MWD (monitoring while drilling) device and method for vibration of down-hole drill string
11/27/2013	CN103410499A Data collection processing system of measuring truck
11/27/2013	CN103410484A Small-diameter tubular pump pump-passing depth checking perforating and pumping combined production method
11/27/2013	CN103410483A Evaluation device and method for sand controlling effect of screen pipe of horizontal well
11/27/2013	CN102359368B Working fluid level prediction method for submersible reciprocating-type oil pumping unit based on support vector machine
11/27/2013	CN102155211B Circuit for monitoring well kick at deepwater drilling mud line
11/27/2013	CN102121376B Intelligent coal seam gas pressure tester
11/27/2013	CN102102511B Underground ultrasonic Doppler flow measurement device and measurement method
11/26/2013	US8594818 Production monitoring system and method
11/26/2013	US8593910 Permanent seismic source
11/26/2013	US8593266 Power line communication system
11/26/2013	US8590382 Method for evaluating shaped charge perforation test cores using computer tomographic images thereof
11/26/2013	CA2506133C Logging tool with a parasitic radiation shield and method of logging with such a tool
11/26/2013	CA2415921C Method and apparatus for full offset resistivity imaging for use in boreholes
11/21/2013	WO2013173704A1 Method of generating and characterizing a seismic signal in a drill bit
11/21/2013	WO2013173404A1 System and method for performing a perforation operation
11/21/2013	WO2013173402A1 Intervention operations with high rate telemetry
11/21/2013	WO2013172995A1 Communication system for extended reach wells
11/21/2013	WO2013172948A1 Method and system of predicting future hydrocarbon production
11/21/2013	WO2013172946A1 Method and system of displaying a graphical representation of hydrocarbon production parameters
11/21/2013	WO2013172945A1 Method and system of selecting hydrocarbon wells for well testing
11/21/2013	WO2013171721A1 Methods and apparatus for determining downhole fluid parameters
11/21/2013	WO2013170654A1 Underground cableless test system of oil well
11/21/2013	WO2013170372A1 Apparatus and method for downhole activation
11/21/2013	WO2012168728A3 Tubular assembly and method of deploying a downhole device using a tubular assembly
11/21/2013	WO2012164515A3 Junction box to secure and electronically connect downhole tools
11/21/2013	WO2012131600A3 Transmitter and receiver synchronization for wireless telemetry systems

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