E21B 47 - Survey of boreholes or wells

Patents for E21B 47 - Survey of boreholes or wells (31,352)
11/2004
11/10/2004	CN1175282C Use of acoustic emission in rock formation analysis
11/09/2004	US6816788 Inertially-stabilized magnetometer measuring apparatus for use in a borehole rotary environment
11/09/2004	US6816435 Method for estimating the position of a drill
11/09/2004	US6816082 Communications system having redundant channels
11/09/2004	US6815954 Method and apparatus for full offset resistivity imaging for use in boreholes
11/09/2004	US6815946 Magnetically activated well tool
11/09/2004	US6815945 Apparatus detecting relative body movement
11/09/2004	US6814163 Two solenoid guide system for horizontal boreholes
11/09/2004	US6814162 One cone bit with interchangeable cutting structures, a box-end connection, and integral sensory devices
11/09/2004	US6814142 Well control using pressure while drilling measurements
11/07/2004	CA2747122A1 Well communication system
11/04/2004	WO2004094976A1 Apparatus to measure differential pressure with settable pressure reference
11/04/2004	WO2004094961A1 Fluid flow measurement using optical fibres
11/04/2004	WO2004094959A2 Apparatus and methods for remote monitoring of flow conduits
11/04/2004	WO2004094783A1 Well string assembly
11/04/2004	WO2004065754B1 Inventory counter for oil and gas wells
11/04/2004	US20040219831 Data transmission system for a downhole component
11/04/2004	US20040219064 Fluids analyzer; accurate determination in bore holes
11/04/2004	US20040217880 Method and apparatus for performing diagnostics in a wellbore operation
11/04/2004	US20040217879 Motor pulse controller
11/04/2004	US20040216923 Boring technique using locate point measurements for boring tool depth prediction
11/04/2004	US20040216920 Visual probes and methods for placing visual probes into subsurface areas
11/04/2004	US20040216873 Radially adjustable downhole devices & methods for same
11/04/2004	US20040216872 Adjustable deployment apparatus for an actively clamped tubing-conveyed in-well seismic station
11/04/2004	CA2484338A1 Apparatus to measure differential pressure with settable pressure reference
11/03/2004	EP1473256A1 Method and apparatus for data transmission between surface and an underground salt cavity
11/03/2004	EP1472811A2 Burst qam downhole telemetry system
11/03/2004	EP1309888B1 Apparatus and method for synchronized formation measurement
11/03/2004	EP1181435B1 Method of utilizing flowable devices in wellbores
11/03/2004	EP1153196B1 Casing mounted sensors
11/03/2004	EP1114334B1 Method and apparatus for creating an image of an earth borehole or a well casing
11/03/2004	CN2653128Y Resistance eliminator for electric measurer
11/03/2004	CN1543694A Conductor system
11/03/2004	CN1174261C Flow speed wave generating method
11/03/2004	CN1174260C Sonic data logging system, sonic data logging method and downhole tool for sonic data logging
11/02/2004	US6810719 Multiphase flow measurement system
11/02/2004	CA2342775C Method of packing extended reach horizontal wells with lightweight proppants
11/02/2004	CA2105722C Procedure and production pipe for production of oil or gas from an oil or gas reservoir
10/2004
10/28/2004	WO2004092633A2 Spoolable composite coiled tubing connector
10/28/2004	WO2004092540A1 Mapping fracture dimensions
10/28/2004	US20040212510 Apparatus and methods for remote monitoring of flow conduits
10/28/2004	US20040211894 Imaging sensor optical system
10/28/2004	US20040211569 Installation and use of removable heaters in a hydrocarbon containing formation
10/28/2004	US20040211272 Apparatus and methods for monitoring pipelines
10/28/2004	US20040211252 Method and device for evaluating physical parameters of an underground reservoir from rock cuttings taken therefrom
10/27/2004	CN1540317A Determining fluid properties from fluid analyzer
10/26/2004	US6808027 Wellbore directional steering tool
10/26/2004	US6808021 Subsea intervention system
10/26/2004	US6807854 Method of determining the thermal profile of a drilling fluid in a well
10/26/2004	CA2329673C Equi-pressure geosteering
10/24/2004	CA2712539A1 Fiber optic cable for use in harsh environments
10/21/2004	WO2004090287A1 Drill hole measuring device and rock drilling unit
10/21/2004	WO2004090286A1 System for managing borehole information
10/21/2004	WO2004051054A3 Coiled tubing acoustic telemetry system and method
10/21/2004	US20040210392 [system and method for visualizing multi-scale data alongside a 3d trajectory]
10/21/2004	US20040207538 Burst QAM downhole telemetry system
10/21/2004	US20040207394 Internal riser inspection system, apparatus and methods of using same
10/21/2004	US20040206495 Mitigating risk by using fracture mapping to alter formation fracturing process
10/21/2004	US20040206492 Borehole sounding device with sealed depth and water level sensors
10/20/2004	EP1469161A2 Hybrid piezoelectric and magnetostrictive actuator
10/20/2004	EP1468395A1 A coiled tubing inspection system using image pattern recognition
10/20/2004	EP1468166A2 Sonde housing and method of manufacture
10/20/2004	EP1161615B1 Fluid controlled adjustable down-hole tool
10/20/2004	CN2650070Y Throwing-stick temperature and pressure measuring instrument
10/20/2004	CN1172170C High-temp resisting petroleum downhole dynamic pressure sensor
10/14/2004	WO2004088089A1 Drifting tubing
10/14/2004	US20040204856 System and method for wellbore communication
10/14/2004	US20040204855 System and method for visualizing data in a three-dimensional scene
10/14/2004	US20040202047 Hybrid piezoelectric and magnetostrictive actuator
10/14/2004	US20040200639 Process and device for generating signals which can be transmitted in a well
10/14/2004	US20040200613 Flexible piezoelectric for downhole sensing, actuation and health monitoring
10/14/2004	US20040200083 Method and system for determining the position and orientation of a device in a well casing
10/14/2004	DE10313912A1 Diameter/radius measuring device for determining diameters/radii of cavities filled with gas or liquid measures support or wall elements produced in the ground by means of a jet process
10/13/2004	EP1467060A1 Flexible piezoelectric device for downhole sensing, actuation and health monitoring
10/13/2004	CN2648069Y Surveying well probe with high temp. resisting and high pressure micro ball combined with density
10/13/2004	CN1536198A Method for measuring downhole pressure in the course of drilling operation and its equipment
10/12/2004	US6802373 Apparatus and method of detecting interfaces between well fluids
10/12/2004	CA2252246C Pressure pulse generator for measurement-while-drilling systems which produces high signal strength and exhibits high resistance to jamming
10/11/2004	CA2463267A1 System and method for visualizing data in a three-dimensional scene
10/08/2004	CA2463019A1 Flexible piezoelectric for downhole sensing, actuation and health monitoring
10/07/2004	WO2004086093A1 Use of pattern recognition in a measurement of formation transit time for seismic checkshots
10/07/2004	WO2004085797A1 System and method for measuring formation properties through cased wellbores
10/07/2004	WO2004085796A1 Borehole telemetry system
10/07/2004	WO2004085795A1 Method to measure injector inflow profiles
10/07/2004	WO2004076799A3 Configurable beacon for a horizontal boring machine
10/07/2004	WO2003067201B1 Extend of detonation determination method using seismic energy
10/07/2004	US20040196044 Flux plane locating in an underground drilling system
10/07/2004	US20040196032 Inventory counter for oil and gas wells
10/07/2004	US20040194958 Methods and systems for optical endpoint detection of a sliding sleeve valve
10/07/2004	US20040194956 Sonde
10/07/2004	US20040194955 Redundant Metal-Metal Seal
10/07/2004	US20040194951 Floating instrument insert for a tool
10/06/2004	EP1464790A1 Floating instrument insert for a tool
10/06/2004	EP1352151B1 Measuring the in situ static formation temperature
10/06/2004	CN2646373Y Balanced type sealing segment
10/05/2004	US6801857 Method and device for determining the quality of an oil well reserve
10/05/2004	US6801136 Method of reducing noise in a borehole electromagnetic telemetry system
10/05/2004	US6799634 Tracer release method for monitoring fluid flow in a well
09/2004
09/30/2004	WO2004083790A1 A device for monitoring of oil-water interface
09/30/2004	WO2004083534A1 Parallel seismic depth testing using a cone penetrometer

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