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
04/17/2014US20140102714 Drilling tool system and method of manufacture
04/17/2014US20140102712 Subsea processor for underwater drilling operations
04/17/2014US20140102698 Plunger fall time identification method and usage
04/17/2014US20140102696 Supported Connection Assembly
04/17/2014US20140102695 Methods and Apparatus for Determining Fluid Parameters
04/17/2014US20140101918 Wellbore screen with tracer for fluid detection
04/16/2014EP2720069A1 A seismic cable for seismic prospection tolerant to failure on power supplying and/or data transmission lines
04/16/2014EP2718544A2 Methods and apparatus for determining downhole fluid parameters
04/16/2014EP2718543A2 Methods and apparatus for determining downhole parameters
04/16/2014EP2718533A2 Tubular assembly and method of deploying a downhole device using a tubular assembly
04/16/2014CN203547733U Oil extraction experiment device capable of simulating reservoir pressure supply
04/16/2014CN203547731U Sonic connecting device of acoustic logging instrument
04/16/2014CN203547730U While-drilling information sound wave transmission relay forwarding device
04/16/2014CN203547729U High-reliability tracing ejector for well logging
04/16/2014CN203547728U Small tension and pressure logger
04/16/2014CN203547727U Pressure control pin shearing type multi-stream tester
04/16/2014CN203547726U Portable negative pressure testing device for gas drainage drill hole
04/16/2014CN203547725U Multi-purpose downhole monitoring pipe column
04/16/2014CN203547724U Shakeproof high-speed storage-type electronic manometer
04/16/2014CN203547723U Air speed and air direction pressure guide probe
04/16/2014CN203547722U Layered and split type detection device for oil-gas well liquid level back waves
04/16/2014CN203547721U Depth measuring device of hydraulic grab
04/16/2014CN203547720U Boring detection apparatus for boring filling pile
04/16/2014CN203547719U Tool face detecting device
04/16/2014CN203547718U Protecting device of mine drilling peep instrument camera
04/16/2014CN203547717U Composite electromagnetic wave transmission drilling-following measuring cross rotary short joint
04/16/2014CN203547716U Measurement experiment device for drill column clamping point of large-displacement well
04/16/2014CN203547715U Tipping bucket oil measuring device
04/16/2014CN203547714U Crude oil single-well metering device
04/16/2014CN203547713U Pipe column vibration friction and resistance reducing experiment device
04/16/2014CN203547712U Testing cable filter
04/16/2014CN203547711U Logging exit-entrance wireless integrated sensor device
04/16/2014CN203547710U Logging and drainage system of offshore self-elevating drilling platform
04/16/2014CN203547709U Filtering type collecting flow meter
04/16/2014CN203547708U Flow detection nipple of horizontal fluid production well and water holdup instrument of horizontal fluid production well
04/16/2014CN203547707U Logging instrument with improved mechanical structure and suitable for high-temperature and high-pressure slim-hole oil-gas well detection
04/16/2014CN203547706U Underground parameter monitoring device
04/16/2014CN203547705U Layered flow pressure and flow detector
04/16/2014CN203547659U Large drift diameter switch controller
04/16/2014CN203547606U Drilling fluid degasser outlet flow monitoring device and drilling fluid degasser
04/16/2014CN103733091A Method for determining spacing of hydraulic fractures in a rock formation
04/16/2014CN103732858A Method and device for well communication
04/16/2014CN103726835A While-drilling reflecting sound wave measuring sound system
04/16/2014CN103726834A Sustained casing pressure diagnosis device and method
04/16/2014CN103726833A Ground data collection system for capillary tube testing
04/16/2014CN103726832A Deepwater drilling condition based marine riser mechanical behavior experiment simulation system and experiment method
04/16/2014CN103726831A Pole plate electrode system for logging instrument
04/16/2014CN103726830A Pole plate assembly for logging instrument
04/16/2014CN103726829A Pole plate scale device for logging instrument
04/16/2014CN103726828A Shielding assembly for logger connector base
04/16/2014CN103726516A High-precision cast-in-place pile pore diameter detection technology
04/16/2014CN102562138B Active decompression and outburst removal method for coal petrography dynamic disasters of expansion region of high gas-containing coal seam
04/16/2014CN102418514B Tubular steel ring self-locking device
04/16/2014CN102230361B Intelligent rotating joint
04/16/2014CN102168551B Device and method for continuously measuring working fluid level depth of oil well and continuously metering produced liquid
04/15/2014US8700371 System and method for controlling an advancing fluid front of a reservoir
04/15/2014US8699227 Well logging tool
04/15/2014US8697992 Extended length cable assembly for a hydrocarbon well application
04/15/2014US8695729 PDC sensing element fabrication process and tool
04/15/2014US8695728 Formation evaluation using a bit-based active radiation source and a gamma ray detector
04/15/2014US8695727 Drill string adapter and method for inground signal coupling
04/15/2014US8695703 Method for monitoring flood front movement during flooding of subsurface formations
04/15/2014US8695701 Measurement device in a horizontal well
04/15/2014US8695415 Contact-less sensor cartridge
04/15/2014CA2614505C Method of using a two-axis gyroscopic
04/15/2014CA2539249C Apparatus and method for fluid flow measurement with sensor shielding
04/10/2014WO2014055843A1 Method of determining an element value
04/10/2014WO2014055300A1 Information aggregation on a mobile offshore drilling unit
04/10/2014WO2014055090A1 Detection of influxes and losses while drilling from a floating vessel
04/10/2014WO2013102761A3 Wireless acoustic communications method and apparatus
04/10/2014WO2013030555A9 Determining perforation orientation
04/10/2014US20140096955 Determining fluid composition downhole from optical spectra
04/10/2014DE102012109556A1 Method for transmitting data in earth borehole between mobile unit at portion of drill string in earth borehole and base unit of system, involves determining transmission quality for data for sub-channels in uplink-transmission channel
04/09/2014EP2715066A2 Detection of gas influx into a wellbore
04/09/2014EP2715065A2 Acoustic triggering devices for multiple fluid samplers and methods of making and using same
04/09/2014EP2715064A2 Junction box to secure and electronically connect downhole tools
04/09/2014EP2715063A1 Downhole acoustic emission formation sampling
04/09/2014EP2715042A2 Wireline apparatus
04/09/2014EP2715035A1 Optimized pressure drilling with continuous tubing drill string
04/09/2014CN203531892U Cross connector used for measurement of coal bed gas pressure
04/09/2014CN203531891U Liquid flow direction indication device in oil field pipeline
04/09/2014CN203531890U Leakage measurement device used in drilling process
04/09/2014CN203531889U Antifreezing casing pressure collector base
04/09/2014CN203531888U Multiple-point temperature and pressure monitoring system of oil recovery well
04/09/2014CN203531887U Flow debugging device of water injection well
04/09/2014CN203531886U Liquid-generation section tester of array capacitor
04/09/2014CN203531885U Movable multi-well single-measurement device
04/09/2014CN203531884U Detachable weighted lever
04/09/2014CN203531883U Well logging equipment
04/09/2014CN203531882U Eccentric testing well mouth
04/09/2014CN203531791U Water-probing drill stem for probing concrete water level
04/09/2014CN103717834A Measurement pretest drawdown methods and apparatus
04/09/2014CN103717833A Method and system of correlating a measured log to a predicted log
04/09/2014CN103717832A Method and system of displaying data associated with drilling a borehole
04/09/2014CN103711484A Borehole imaging device
04/09/2014CN103711481A Instrument pressure-bearing connecting device and structure
04/09/2014CN103711478A System and a method for transmitting data
04/09/2014CN103711477A Downhole information cabled transmission method, device and system
04/09/2014CN103711476A Detection of position of a plunger in a well
04/09/2014CN103711475A Novel dual-induction eight-lateral logging instrument
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