E21B 47 - Survey of boreholes or wells

Patents for E21B 47 - Survey of boreholes or wells (31,352)
11/2013
11/07/2013	WO2012174048A3 Methods and apparatus for determining downhole fluid parameters
11/07/2013	WO2002085821A3 In situ recovery from a relatively permeable formation containing heavy hydrocarbons
11/07/2013	US20130292178 Methods and systems for real-time monitoring and processing of wellbore data
11/07/2013	US20130292177 Systems and Methods Of Detecting an Intersection Between A Wellbore and A Subterranean Structure That Includes A Marker Material
11/07/2013	US20130292126 Methods Of Using Enhanced Wellbore Electrical Cables
11/07/2013	US20130292110 Downhole apparatus, device, assembly and method
11/07/2013	US20130292109 Use of PNC Tools to Determine the Depth and Relative Location of Proppant in Fractures and the Near Borehole Region
11/07/2013	DE102012003832B4 "Verfahren und Vorrichtung zum Einbringen einer mehr als einen Rohrabschnitt umfassenden Erdwärmesonde in das Erdreich" "Method and Apparatus for introducing a pipe section comprising more than one geothermal probe into the ground"
11/06/2013	EP2659496A1 Device for transfer of electrical signals and/or electrical energy
11/06/2013	EP2659292A2 Stress in formations from azimuthal variation in acoustic and other properties
11/06/2013	EP2659091A2 Method and devices for terminating communication between a node and a carrier
11/06/2013	CN203271734U Novel mine ground-stress measuring device
11/06/2013	CN203271732U Storage type sound wave density-variable logger
11/06/2013	CN203271731U Novel slurry pulse generator
11/06/2013	CN203271730U Magnetic signal generating device
11/06/2013	CN203271729U High-temperature and high-pressure leaking stoppage simulator
11/06/2013	CN203271728U Simple-type hole diameter measurement device
11/06/2013	CN203271727U Coal mine underground hydrologic monitoring system based on optical fiber sensing technology
11/06/2013	CN203271726U Wireless temperature transmitter with power supplied in photovoltaic mode
11/06/2013	CN203271725U Anti-freezing anti-theft quick connecting and pressure taking device
11/06/2013	CN203271724U Multifunctional hole detector
11/06/2013	CN203271723U Storage type electronic pressure meter protective device
11/06/2013	CN203271722U Storage type axial tension recording device of under-pit oil pipe
11/06/2013	CN203271721U Multi-function logging bridle device universal for cable and electrode
11/06/2013	CN203271720U Outward relief type pressure relief system for well logging
11/06/2013	CN203271719U Drill stem torque test device
11/06/2013	CN203271718U Tipping bucket flowmeter
11/06/2013	CN203271717U Rotary magnet distance measuring system underground adjustable hanging-prevention combination
11/06/2013	CN203271716U Measuring cylinder for drilling fluid sand content instrument
11/06/2013	CN203271705U Oil-gas separation metering device
11/06/2013	CN203271623U Hydraulic blowout preventing pipe lifting device for wellhead
11/06/2013	CN203271609U Sensing logging instrument and pressure-bearing joint for mud resistivity survey
11/06/2013	CN203271589U Controlled directional drilling guide system
11/06/2013	CN103382837A Information while drilling sound wave transmission relay transmitting device
11/06/2013	CN103382836A Well logging wireless sensor data transmission system for petroleum drilling site
11/06/2013	CN103382835A Water exploration and plugging technology by adopting intelligent switches
11/06/2013	CN103382834A Separated-layer pressure measurement technology by adopting intelligent switches
11/06/2013	CN103382833A Trenchless guiding instrument and measuring method applying guiding instrument
11/06/2013	CN103382832A Marine drilling riser testing device
11/06/2013	CN103382826A Releasing device
11/06/2013	CN102200010B Logging underground instrument backup control device
11/06/2013	CN102182449B Measuring device adopting solid-state vibration angular rate sensor group to realize north-seeking underground
11/06/2013	CN102146792B Temperature and pressure monitoring cable with protection tube and manufacturing method thereof
11/06/2013	CN101832132B Micro-ring identification and detection method for cement bond logging in oil well
11/06/2013	CN101761330B Ultrasonic logging system using self-orienting device of ultrasonic logging instrument
11/06/2013	CN101328801B Apparatus and methods to dissipate heat in a downhole tool
11/05/2013	US8575945 Subsea line monitoring device
11/05/2013	US8575936 Packer fluid and system and method for remote sensing
11/05/2013	US8573327 Apparatus and methods for estimating tool inclination using bit-based gamma ray sensors
11/05/2013	US8573326 Method and apparatus to adjust weight-on-bit/torque-on-bit sensor bias
11/05/2013	US8573325 Optimized pressure drilling with continuous tubing drill string
11/05/2013	US8573313 Well servicing methods and systems
11/05/2013	US8573298 Method for petrophysical evaluation of shale gas reservoirs
11/05/2013	US8573297 Subterranean formation deformation monitoring systems
11/05/2013	US8573048 Method and apparatus for analying fracture fluids in a drilling operation
11/05/2013	CA2593943C Integrated electrode resistivity and em telemetry tool
11/01/2013	CA2814460A1 Nmr detection of water and hydrocarbons during induced alteration processes
10/2013
10/31/2013	WO2013163600A1 Rugged rfid tags
10/31/2013	WO2013163471A1 Low-frequency seismic-while-drilling source
10/31/2013	WO2013163299A1 Method and apparatus to detect formation boundaries ahead of the bit using multiple toroidal coils
10/31/2013	WO2013162795A1 Methods for optically determining a characteristic of a substance
10/31/2013	WO2013162787A1 Methods for optically determining a characteristic of a subsbstance
10/31/2013	WO2013162753A1 Devices for optically determining a characteristic of a substance
10/31/2013	WO2013162744A1 Devices for optically determining a characteristic of a substance
10/31/2013	WO2013162534A1 System and method for triggering a downhole tool
10/31/2013	WO2013162529A2 Systems and methods for anonymizing and interpreting industrial activities as applied to drilling rigs
10/31/2013	WO2013162516A1 Transmitting petroleum well data from a mobile drilling rig
10/31/2013	WO2013162491A1 Simultaneous data transmission of multiple nodes
10/31/2013	WO2013162411A1 Method and apparatus for spectral noise logging
10/31/2013	WO2013162115A1 Apparatus for tracking location of salt water boundary of underground water
10/31/2013	WO2013159810A1 Processing data representing a physical system
10/31/2013	WO2013159237A1 Methods and electrically-actuated apparatus for wellbore operations
10/31/2013	WO2013036145A3 Petroleum well intervention winch system
10/31/2013	WO2013029945A3 System and method for transmitting signals in bores
10/31/2013	WO2013009455A3 Remotely activated downhole apparatus and methods
10/31/2013	US20130289961 Methods For Producing Fluids From Geological Formation
10/31/2013	US20130284434 System and Method of Coiled Tubing Depth Determination
10/31/2013	US20130284431 Flow Sensing Apparatus and Methods For Use In Oil and Gas Wells
10/31/2013	CA2861441A1 Method and apparatus for spectral noise logging
10/30/2013	EP2658214A1 Transmitting petroleum well data from a mobile drilling rig
10/30/2013	EP2656039A2 Electrical power and/or electrical signal transmission
10/30/2013	CN203257409U Online automatic oil well liquid level monitoring system
10/30/2013	CN203257408U Oil well liquid level echo detecting device and oil well working fluid level depth detecting system
10/30/2013	CN203257407U Oil well mouth metering device
10/30/2013	CN203257406U Underground drill column fault diagnosis system
10/30/2013	CN103375165A Single-fissure flow medium physical property fine control method
10/30/2013	CN103375164A Pipeline frozen and blocked position judging method and partial-pressure skid-mounted equipment used by same
10/30/2013	CN103375163A Portable wellhead weight indication recorder
10/30/2013	CN103375162A Method for monitoring pressure gradients of fractured formation
10/30/2013	CN103375161A Method for monitoring pressure gradients of porous formation
10/30/2013	CN103375160A Elastic force compensation type electronic pressure gauge damping support cylinder
10/30/2013	CN103375155A Linear physical simulation system for thermal recovery of heavy oil reservoirs
10/30/2013	CN103375142A Friction-type manometer casting and fishing device
10/30/2013	CN102322258B Drill-following acoustic logging method and device capable of reducing and insulating sound on drill collar
10/30/2013	CN102128018B Electric double-guide flow allocating device
10/30/2013	CN102094624B Power supply circuit of main current for microsphere focused logging
10/30/2013	CN102094623B Voltage and current measuring circuit of micro-spherically focused logging instrument
10/30/2013	CN102094620B Multi-angle eccentric mechanism for petroleum logging
10/30/2013	CN102041992B Underground backup emergency escape system of logging instrument
10/30/2013	CN101806212B Rotary electromagnetic vortex imaging well measuring instrument

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