E21B 47 - Survey of boreholes or wells

Patents for E21B 47 - Survey of boreholes or wells (31,352)
11/2011
11/09/2011	CN202031567U Circuit used for measuring annulus instantaneous flow in marine riser
11/09/2011	CN202031566U Novel flexible drive mechanism for downhole instrument
11/09/2011	CN202031547U Wellhead hydraulic signal generating device
11/09/2011	CN202031519U Wellhead source loading cover plate for oilfield well logging
11/09/2011	CN202031510U Sleeve hoop positioner
11/09/2011	CN102236107A Lateral electrode system of petroleum well logging instrument
11/09/2011	CN102235166A Method for adjusting coaxality and orthogonality of acceleration sensor and magnetic sensor
11/09/2011	CN102235165A Soft sensing head and pressure gage antifreezing device with pressure zero adjustment
11/09/2011	CN102235164A Double-flow automatic measurement and regulation instrument for water injection well
11/08/2011	US8051911 Method of fracturing a subterranean formation at optimized and pre-determined conditions
11/08/2011	US8051910 Methods of inferring flow in a wellbore
11/08/2011	US8051909 Method and apparatus for positioning the proximal end of a tubular string above a spider
11/08/2011	US8051706 Wide liquid temperature range fluids for pressure balancing in logging tools
11/08/2011	CA2442413C Subterranean well pressure and temperature measurement
11/03/2011	WO2011136858A1 Measurement of isotope ratios in complex matrices
11/03/2011	WO2011135481A1 Use of halogenated benzoic acids for labelling injection water
11/03/2011	WO2011134881A1 Data processing method and system for checking pipeline leakage
11/03/2011	WO2011097110A8 Method and apparatus for precise positioning of a borehole measurement instrument
11/03/2011	WO2011094401A3 Time dependent measurment of formation properties using pulsed neutron generators
11/03/2011	WO2011090658A3 Logging tool employing a monopole current injection electrode for microresistivity imaging
11/03/2011	WO2011066525A3 Apparatus and method for treating a subterranean formation using diversion
11/03/2011	WO2009032595A3 High speed data transfer for measuring lithology and monitoring drilling operations
11/03/2011	US20110270525 Machines, systems, computer-implemented methods, and computer program products to test and certify oil and gas equipment
11/03/2011	US20110267064 Multi-frequency boring tool locating system and method
11/03/2011	US20110266057 Device including an apparatus for measuring drilling or coring operation parameters, and equipment including such a device
11/03/2011	US20110266056 Methods and apparatus for planning and dynamically updating sampling operations while drilling in a subterranean formation
11/03/2011	CA2794537A1 Measurement of isotope ratios in complex matrices
11/02/2011	EP2382367A2 Expandable stabilizer with roller reamer elements
11/02/2011	CN202023558U Low-frequency magnetic communication device
11/02/2011	CN202023557U Cable inlet device for power and signal transmission drill rod
11/02/2011	CN202023556U Dual caliper for horizontal well
11/02/2011	CN202023555U Intelligent remote transmitting pressure meter for oil well based on wireless mesh network
11/02/2011	CN202023554U Non-position and multipoint clinometer
11/02/2011	CN202023553U Small-displacement turbine flow gauging nipple
11/02/2011	CN202023552U Perforation windowing-type knight spigot
11/02/2011	CN202023551U Testing and adjusting device for water injection well
11/02/2011	CN202023550U Female plug center drawer for logging instrument
11/02/2011	CN202023526U Testing anti-spraying pipe for oil-water well
11/02/2011	CN102231696A Method for packaging datagram message of measurement while drilling (WMD) system
11/02/2011	CN102230376A Azimuth gamma well-logging device
11/02/2011	CN102230375A Method and device for monitoring coal bed gas parameter in real time
11/02/2011	CN102230374A Underground program remote update device based on 485 bus
11/02/2011	CN102230373A Method for determining safe drilling fluid density of coal bed based on structural element analysis model
11/02/2011	CN102230361A Intelligent rotating joint
11/02/2011	CN101328802B 毛细管测压装置 Capillary pressure measurement device
11/01/2011	US8050866 Pulsed-neutron formation density
11/01/2011	US8047284 Determining the use of stimulation treatments based on high process zone stress
11/01/2011	CA2636667C Termination of fiber optic cable
11/01/2011	CA2634650C Permanent downhole deployment of optical sensors
10/2011
10/27/2011	WO2011133620A2 Axial thrust balanced impeller for use with a downhole electrical submersible pump
10/27/2011	WO2011133544A2 Apparatus and methods for estimating tool inclination using bit-based gamma ray sensors
10/27/2011	WO2011133530A2 Formation evaluation using a bit-based active radiation source and a gamma ray detector
10/27/2011	WO2011133421A2 Method of predicting source rock thermal maturity from log responses
10/27/2011	WO2011132095A2 Methods for characterization of petroleum reservoirs employing property gradient analysis of reservoir fluids
10/27/2011	WO2011132040A2 Utilisation of tracers in hydrocarbon wells
10/27/2011	WO2011109617A3 Tactile pressure sensing devices and methods for using same
10/27/2011	WO2011109585A3 Completion string deployment in a subterranean well
10/27/2011	WO2011094275A3 Nmr contrast logging
10/27/2011	WO2011091216A3 Real-time formation anisotropy and dip evaluation using tri-axial induction measurements
10/27/2011	WO2011079173A3 Electric hydraulic interface for a modular downhole tool
10/27/2011	WO2011070408A3 Electro-chemical sensor
10/27/2011	WO2011063023A3 Determination of oil saturation in reservoir rock using paramagnetic nanoparticles and magnetic field
10/27/2011	US20110264373 Method For The Management of Oilfields Undergoing Solvent Injection
10/27/2011	US20110264372 Expert System For Selecting Fit-For-Purpose Technologies And Wells For Reservoir Saturation Monitoring
10/27/2011	US20110261649 Detection of cross bores involving buried utilities
10/27/2011	US20110260051 Method for detecting tracer compounds for hydrocarbon production
10/27/2011	US20110259639 Downhole Axial Flux Generator
10/27/2011	US20110259582 Fluid system component with sacrificial element
10/27/2011	US20110259581 Formation testing
10/27/2011	US20110259095 Hydraulic Signature Tester
10/26/2011	EP2379841A1 System and method for completion optimization
10/26/2011	EP2122109B1 Method and apparatus for collecting drill bit performance data
10/26/2011	EP1828540B1 Gyroscopically-oriented survey tool
10/26/2011	CN202017485U Cable for down-hole pressure and multi-point temperature combined test
10/26/2011	CN202017484U Three-shaft non-magnetic check table
10/26/2011	CN202017483U Capillary tube sealing and clamping device
10/26/2011	CN202017482U Individual well remote measuring and controlling device
10/26/2011	CN202017481U Oil well oil-gas-water continuous separate measuring device
10/26/2011	CN202017480U Pipe tripping comprehensive monitor operating system
10/26/2011	CN202017453U Temperature measuring type diamond bit for drilling tests
10/26/2011	CN1888383B Deepwell depth and cable pulling winch metering device
10/26/2011	CN102227543A High-temperature downhole devices
10/26/2011	CN102226393A Pressure monitoring and sound wave generation device of downhole blowout prevention system and control method thereof
10/26/2011	CN102226392A Multi-parameter monitoring device of oil well and working method thereof
10/26/2011	CN102226377A Drill string equipped with downhole blowout preventer and working method thereof
10/26/2011	CN101701966B Jet ignition experiment device and test method
10/26/2011	CN101482009B High-temperature high-pressure multifunctional horizontal well damage appraisement instrument
10/25/2011	US8044821 Downhole data transmission apparatus and methods
10/25/2011	US8044820 Method and system for performing operations and for improving production in wells
10/25/2011	US8042624 System and method for improved depth measurement correction
10/25/2011	US8042623 Distributed sensors-controller for active vibration damping from surface
10/25/2011	US8042612 Method and device for maintaining sub-cooled fluid to ESP system
10/25/2011	CA2661911C Apparatus and methods for estimating loads and movements of members downhole
10/25/2011	CA2597829C Method of determination of the stuck point in drill pipes by measuring the magnetic permeability of the said pipes
10/20/2011	WO2011130238A2 Method and system for a down-hole cable having a liquid bonding material
10/20/2011	WO2011130176A1 Production logging processes and systems
10/20/2011	WO2011130159A2 Methods and systems for drilling
10/20/2011	WO2011130136A2 Dielectric spectroscopy for downhole fluid analysis during formation testing
10/20/2011	WO2011130080A2 Improved current measurement for water-based mud galvanic electrical imaging and laterlog tools
10/20/2011	WO2011129990A2 Three-coil system with short nonconductive inserts for transient mwd resistivity measurements

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