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
03/20/2014WO2014042818A1 Fluid flow impedance system
03/20/2014WO2014042629A1 Apparatus and method for drilling fluid telemetry
03/20/2014WO2014042621A1 Method and system for realtime determination of formation anisotropy, dip, and strike with mci data
03/20/2014WO2014040264A1 Method and system for measuring dynamic liquid level of oil well
03/20/2014WO2013170137A3 Control panel, and digital display units and sensors therefor
03/20/2014WO2013151790A3 High speed cement bond logging and interactive targeted intervention
03/20/2014WO2013149016A3 System and method for measurement incorporating a crystal resonator
03/20/2014WO2013148856A3 System and method for measurement incorporating a crystal resonator
03/20/2014WO2013133890A3 Latching assembly for wellbore logging tools and method of use
03/20/2014WO2013103817A3 Active drilling measurement and control system for extended reach and complex wells
03/20/2014WO2013101984A3 Systems and methods for automatic weight on bit sensor calibration and regulating buckling of a drillstring
03/20/2014WO2013100770A3 A borehole instrument system for ramam scattering
03/20/2014WO2013096359A3 System and method for monitoring down-hole fluids
03/20/2014WO2013043663A8 Dual purpose observation and production well
03/20/2014WO2012054139A3 Methods for establishing a subsurface fracture network
03/20/2014US20140082304 Monitoring a subsea installation
03/20/2014US20140077966 Power line communication system
03/20/2014US20140076633 Housing for downhole measurement
03/20/2014US20140076632 Method to predict overpressure uncertainty from normal compaction trendline uncertainty
03/20/2014US20140076551 Systems, Methods, and Apparatuses for In Situ Monitoring of Cement Fluid Compositions and Setting Processes Thereof
03/20/2014US20140076550 Systems and Methods for Detecting Microannulus Formation and Remediation
03/20/2014US20140076549 Systems and Methods for In Situ Monitoring of Cement Slurry Locations and Setting Processes Thereof
03/20/2014US20140076547 Multiphase flowmeter for subsea applications
03/20/2014US20140076546 Single Trip Multi-Zone Drill Stem Test System
03/20/2014US20140076545 Downhole Heater Assembly and Power Line Communications System
03/20/2014US20140076544 Method of treating subterranean formation
03/20/2014US20140076531 Downhole tool
03/19/2014EP2708858A1 Method and apparatus for determining fluid parameters
03/19/2014EP2707572A1 Apparatus and methods of analysis of pipe and annulus in a wellbore
03/19/2014EP2707453A1 Carbon-based fluorescent tracers as oil reservoir nano-agents
03/19/2014CN203488169U Pressure testing device of inner blowout prevention tool
03/19/2014CN203488168U Coal mine water exploration system
03/19/2014CN203488167U Underground deep hole depth measuring device
03/19/2014CN203488166U Calibration device of borehole clinometer
03/19/2014CN203488165U Continuous separating testing device for poly-phase of multi-well
03/19/2014CN203488161U Carbon dioxide injection end metering system allowing improvement of oil recovery factor
03/19/2014CN203488114U Water exploration drill rod for specific water-level detection
03/19/2014CN203488102U Wireless mining-induced stress monitoring drill used for roadway
03/19/2014CN103649461A Positioning method
03/19/2014CN103649460A Well drilling methods with automated response to event detection
03/19/2014CN103649453A Gas lift kickover system
03/19/2014CN103643947A Dual-electrical frequency spectrum logging instrument and method
03/19/2014CN103643945A Technology for thin layer lithology reservoir recognition and horizontal well drilling tracking
03/19/2014CN103643942A Isotope labeling testing method of water outlet portion of high-water-content horizontal well
03/19/2014CN103643941A Pressure transferring cylinder for testing coalbed methane capillary tube
03/19/2014CN103643940A Connector special for coalbed methane capillary tube testing
03/19/2014CN103643939A Coalbed methane liquid level optical fiber testing device
03/19/2014CN103643938A Control method and device of underground measurement while drilling system
03/19/2014CN103643937A Dual laterolog method and instrument for measuring permittivity and resistivity of formation rock
03/19/2014CN103643932A Underground gasification isotopic tracing method
03/19/2014CN103643928A Step-by-step deep profile control method based on pressure field and flow velocity field distribution
03/19/2014CN103643925A Method performing pressure measurement on water-isolating pipe
03/19/2014CN103643920A Unconventional gas extraction visual simulator and extraction simulation method thereof
03/19/2014CN102425405B Stratified pressure testing method of eccentric water distribution well in oilfield
03/19/2014CN102337881B Assembly method of inertial measurement component in continuous inclinometer
03/19/2014CN101743377B In situ determination of critical desorption pressures
03/18/2014US8671968 Device for pressure testing of pipes
03/18/2014US8671749 System and method to protect strain gauges while transmitting pressure
03/18/2014US8671748 Pressure sensor with internal bellows
03/18/2014CA2802464C Systems and methods for isolating current flow to well loads
03/18/2014CA2729349C Method and apparatus for acoustic data transmission in a subterranean well
03/13/2014WO2014039463A1 Model-driven surveillance and diagnostics
03/13/2014WO2014039036A1 Wellbore completion and hydraulic fracturing optimization methods and associated systems
03/13/2014WO2014039025A1 Mud pulser with high speed, low power input hydraulic actuator
03/13/2014WO2014037619A2 Method for surveying drill holes, drilling arrangement, and borehole survey assembly
03/13/2014WO2013166129A4 Low frequency broad band ultrasonic transducers
03/13/2014WO2013156866A3 Fluorescent nano-sensors for oil and gas reservoir characterization
03/13/2014WO2013112674A3 Systems, methods, and devices for monitoring wellbore conditions
03/13/2014WO2013079928A3 An adaptive method for high data rate communication in wells
03/13/2014US20140070084 Method for monitoring or tracing operations in well boreholes
03/13/2014US20140069721 Magnetic ranging while drilling using an electric dipole source and a magnetic field sensor
03/13/2014US20140069656 Systems and methods for detecting leaks in subsea cement and wellbore equipment
03/12/2014EP2705342A1 Integrity monitoring of conduits
03/12/2014CN203476900U Cylinder for drilling measuring equipment
03/12/2014CN203476318U Anti-theft oil pressure measuring and sampling integrated device
03/12/2014CN203476317U Slewing drilling real-time track measurement-while-drilling device
03/12/2014CN203476316U Structure for preventing wireless drilling-followed inclinometer from running off
03/12/2014CN203476315U Rubber-cup-free top end assembly for self-electricity-generating pulser
03/12/2014CN203476314U Probe vacuum flask of element capture spectrum logging instrument
03/12/2014CN203476313U Novel torsion test shaft
03/12/2014CN203476312U Measurement while drilling probe pipe
03/12/2014CN203476311U Metal impeller for flow logger
03/12/2014CN203476310U Ground monitoring system of drilling machine
03/12/2014CN103635657A Downhole tool for determining laterals
03/12/2014CN103635655A Optimized pressure drilling with continuous tubing drill string
03/12/2014CN103628869A Lithology-oriented online natural rock debris gamma logging instrument and logging method thereof
03/12/2014CN103628868A Method for predicating oil production quantity in high-volatility oil deposit natural gas injection development
03/12/2014CN103628864A Multi-segment fractured horizontal well intelligent test system and method
03/12/2014CN103628863A Top end assembly without rubber cup for self-power-generating pulser
03/12/2014CN103628862A Large-power signal emission source and monitoring method for dynamically monitoring residual oil of oil field by potential method
03/12/2014CN103628861A Intelligent drilling television imaging instrument
03/12/2014CN103628860A Optical fiber sensor for measuring gas water distribution in coal-bed gas well shaft
03/12/2014CN103628825A Slurry resistivity measurement pressure bearing connector used for induction logging instrument
03/12/2014CN103628816A Seismic attribute guidance horizontal-well-steering method and device thereof
03/12/2014CN102865066B Experiment device and method for deepwater shaft multiphase flow containing natural gas hydrate phase changes
03/12/2014CN102287179B Well-flushing storage type underground video detection device
03/12/2014CN102174887B Device for measuring annulus flow between sea bottom marine riser and drill column by using ultrasonic waves
03/12/2014CN102080534B Speed oil filling device for pulse generator of wireless inclinometer and using method thereof
03/12/2014CN101701518B Pipe string used for high-speed test of pressure control and water stabilization of horizontal well
03/12/2014CN101545362B Latchable carrier assembly for pipe conveyed well logging
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