| Patents for E21B 47 - Survey of boreholes or wells (31,352) |
|---|
| 01/17/2008 | CA2656330A1 Methods and systems for determination of fluid invasion in reservoir zones |
| 01/17/2008 | CA2655200A1 Modular geosteering tool assembly |
| 01/16/2008 | CN201007205Y Connecting joint |
| 01/16/2008 | CN201007204Y Down-hole pressure gage capable of automatically closing liquid feeding hole device with fusing insurance |
| 01/16/2008 | CN201007203Y Coal bed gas well test production water vapor separating and metering mechanism |
| 01/16/2008 | CN201007202Y Portable oil well and gas well universal real time parameter monitoring device |
| 01/16/2008 | CN101107423A A method and a system for determining the position of a drill bit |
| 01/16/2008 | CN101105126A Logging-while-drilling orientation measurement error compensation method based on micro-quartz angular rate sensor |
| 01/16/2008 | CN101105125A Down-hole vertical magnetic probe |
| 01/16/2008 | CN101105124A Oil extraction indicator and using method thereof |
| 01/16/2008 | CN101105119A Pumping unit balance adjusting apparatus and pumping unit balance structure adjusting method |
| 01/15/2008 | US7319410 Downhole transmission system |
| 01/15/2008 | US7318488 Method for classifying data measured during drilling operations |
| 01/15/2008 | US7318471 System and method for monitoring and removing blockage in a downhole oil and gas recovery operation |
| 01/15/2008 | US7318343 System for detecting gas in a wellbore during drilling |
| 01/15/2008 | CA2541408C Method and system for logging while casing |
| 01/15/2008 | CA2448895C Systems and methods for detecting casing collars |
| 01/15/2008 | CA2447317C Method and apparatus for downhole fluid characterization using flexural mechanical resonators |
| 01/15/2008 | CA2343947C Through-drill string conveyed logging system |
| 01/15/2008 | CA2337221C Downhole well corrosion monitoring apparatus and method |
| 01/15/2008 | CA2238998C Remotely accessible mobile repair unit for wells |
| 01/15/2008 | CA2187432C Production wells having permanent downhole formation evaluation sensors |
| 01/15/2008 | CA2135848C Apparatus and procedure for measuring the production of a hydrocarbon well |
| 01/10/2008 | WO2008004999A1 Closed loop drilling assembly with electronics outside a non-rotating sleeve |
| 01/10/2008 | US20080008043 Method for determining a position of an object |
| 01/10/2008 | US20080007424 Apparatus for Interfacing with a Transmission Path |
| 01/10/2008 | US20080007423 Method and Apparatus for Downlink Communication Using Dynamic Threshold Values for Detecting Transmitted Signals |
| 01/10/2008 | US20080007422 Downhole Communication |
| 01/10/2008 | CA2593170A1 Annular fracturing service tool system |
| 01/09/2008 | CN201004168Y Intelligent control system for well measurement car |
| 01/09/2008 | CN201003399Y Double compensation injection profile logging device |
| 01/09/2008 | CN101100940A Regular arrays sound signal detection system and its engineering uses |
| 01/09/2008 | CN101100939A Depth tracking device for logging while drilling |
| 01/09/2008 | CN101100935A Continuous liquid-discharging device for exploration well testing for oil |
| 01/08/2008 | US7317989 Method and apparatus for chemometric estimations of fluid density, viscosity, dielectric constant, and resistivity from mechanical resonator data |
| 01/08/2008 | US7316278 Method for determining drilling malfunction by correlation of drilling operating parameters and drilling response parameters |
| 01/08/2008 | US7316277 Bottom hole assembly |
| 01/08/2008 | US7316272 Determining and tracking downhole particulate deposition |
| 01/08/2008 | CA2503225C Enhanced measurement of azimuthal dependence of subterranean parameters |
| 01/08/2008 | CA2473495C System and method for autonomously performing a downhole well operation |
| 01/08/2008 | CA2457650C Method and apparatus for determining downhole pressures during a drilling operation |
| 01/08/2008 | CA2448550C Dual sensor freepoint tool |
| 01/08/2008 | CA2296888C Wye block having automatically aligned guide structure |
| 01/07/2008 | CA2592361A1 Pulley for assisting in the take-up/deployment of a hetereogeneous system behaving differently according to two successive states, and corresponding device |
| 01/03/2008 | WO2008002185A1 System for measuring components of a three-component gas-liquid flow of oil wells |
| 01/03/2008 | US20080000690 Downhole abrading tool having taggants for indicating excessive wear |
| 01/03/2008 | US20080000689 System and method for hard line communication with mwd/lwd |
| 01/03/2008 | US20080000688 Adaptive apparatus, system and method for communicating with a downhole device |
| 01/03/2008 | US20080000639 Method and System for Treating a Subterraean Formation Using Diversion |
| 01/03/2008 | US20080000635 Downhole measurement system and method |
| 01/02/2008 | EP1872156A1 Subsurface imagery for temperature measurement and fluid flow for oil recovery using electromagnetic impedance tomography (emit) |
| 01/02/2008 | EP1871990A1 Low temperature monitoring system for subsurface barriers |
| 01/02/2008 | CN100359130C Method for detecting sleeve fluid-loss point utilizing direct-reading ultrasound flowmete |
| 01/01/2008 | US7315256 Magnetic signalling in pipelines |
| 12/27/2007 | WO2007149866A2 Active vibration control for subterranean drilling operations |
| 12/27/2007 | WO2007149507A2 Rigless well intervention apparatus and method |
| 12/27/2007 | WO2007149106A1 Antenna cutout in a downhole tubular |
| 12/27/2007 | WO2007149008A1 Method for operating a well jet device at a hydraulic fracturing of multilayer hydrocarbon reservoirs |
| 12/27/2007 | WO2007148269A1 Fluid diversion measurement methods and systems |
| 12/27/2007 | WO2007023341A3 Method and apparatus for transmitting or receiving information between a downhole equipment and surface |
| 12/27/2007 | US20070296810 Apparatus and Method for Obtaining Images of a Borehole |
| 12/27/2007 | US20070296606 System and Method for Wireless Data Transmission |
| 12/27/2007 | US20070295502 System for Well Logging |
| 12/27/2007 | US20070295081 Method and device for fluid flow parameters determination |
| 12/27/2007 | CA2659580A1 Fluid diversion measurement methods and systems |
| 12/27/2007 | CA2655944A1 Rigless well intervention apparatus and method |
| 12/27/2007 | CA2652624A1 Antenna cutout in a downhole tubular |
| 12/26/2007 | EP1619352A9 Method and system for accessing subterranean deposits from the surface |
| 12/26/2007 | CN200996292Y Small-output volume stream-collecting metering device vortex street under well |
| 12/26/2007 | CN101095239A High temperature memory device |
| 12/26/2007 | CN101095143A Multiscale multidimensional well log data inversion and deep formation imaging method |
| 12/26/2007 | CN101094968A Magnetic assemblies for deposit prevention |
| 12/26/2007 | CN101092874A Method for measuring formation properties with a time-limited formation test |
| 12/26/2007 | CN100357764C Methods and apparatus for measuring flow velocity in a wellbore using NMR and applications using same |
| 12/26/2007 | CN100357763C Resistivity and conductivity sensor used for high temperature and high pressure environment |
| 12/26/2007 | CN100357735C High temperature high pressure oil well cement paste coagulation instrument and its coagulation time measuring method |
| 12/25/2007 | US7313481 Methods and devices for analyzing and controlling the propagation of waves in a borehole generated by water hammer |
| 12/25/2007 | US7313480 Integrated drilling dynamics system |
| 12/25/2007 | US7313052 System and methods of communicating over noisy communication channels |
| 12/25/2007 | US7312428 Processing hydrocarbons and Debye frequencies |
| 12/25/2007 | US7311153 Flow-biased sequencing valve |
| 12/25/2007 | US7311143 Method and apparatus for generation of acoustic shear waves through casing using physical coupling of vibrating magnets |
| 12/25/2007 | US7311142 Apparatus and method for aquiring information while drilling |
| 12/25/2007 | US7311011 Apparatuses for interaction with a subterranean formation, and methods of use thereof |
| 12/23/2007 | CA2589676A1 System for well logging |
| 12/21/2007 | WO2007146925A1 Implosive actuation of downhole tools |
| 12/21/2007 | WO2007146889A2 Drilling fluid flow diverter |
| 12/21/2007 | WO2007145859A2 Electromagnetically determining the relative location of a drill bit using a solenoid source installed on a steel casing |
| 12/21/2007 | WO2007144158A1 Device and method for determining the roll angle of a device having a housing |
| 12/21/2007 | WO2007120786B1 Methods for designing and fabricating earth-boring rotary drill bits having predictable walk characteristics and drill bits configured to exhibit predicted walk characteristics |
| 12/21/2007 | CA2654730A1 Method and system for designing and optimizing drilling and completion operations in hydrocarbon reservoirs |
| 12/20/2007 | US20070289779 Providing a sensor array |
| 12/20/2007 | US20070289778 Active vibration control for subterranean drilling operations |
| 12/20/2007 | US20070289741 Method of Fracturing an Earth Formation, Earth Formation Borehole System, Method of Producing a Mineral Hydrocarbon Substance |
| 12/20/2007 | US20070289740 Apparatus and Method for Managing Supply of Additive at Wellsites |
| 12/20/2007 | US20070289739 Fluid diversion measurement methods and systems |
| 12/20/2007 | US20070289738 Rigless well intervention apparatus and method |
| 12/20/2007 | US20070289737 A method for continuously batch mixing a cement slurry |
| 12/20/2007 | US20070289373 Apparatus and method for downhole dynamics measurements |
| 12/19/2007 | EP1867833A1 Apparatus and method for obtaining images of a borehole |