| Patents for E21B 47 - Survey of boreholes or wells (31,352) |
|---|
| 05/05/2010 | CN101701966A Jet ignition experiment device and test method |
| 05/05/2010 | CN101701520A Simulation experiment device for migrating rock cuttings with circulation of deepwater drilling fluid and stabilizing well wall |
| 05/05/2010 | CN101701519A Deep well unpowered data transmission device |
| 05/05/2010 | CN101701518A Pipe string used for high-speed test of pressure control and water stabilization of horizontal well |
| 05/05/2010 | CN101044417B Method for hydrocarbon reservoir monitoring |
| 05/04/2010 | US7708086 Modular drilling apparatus with power and/or data transmission |
| 05/04/2010 | US7708067 Apparatus and method for estimating orientation of a liner during drilling of a wellbore |
| 05/04/2010 | US7707878 Circulation pump for circulating downhole fluids, and characterization apparatus of downhole fluids |
| 05/04/2010 | CA2556433C Methods and apparatus for measuring formation properties |
| 04/29/2010 | WO2010048411A2 Distributed measurement of mud temperature |
| 04/29/2010 | WO2010048115A2 Methods and apparatuses for data collection and communication in drillstring components |
| 04/29/2010 | WO2010048056A2 Externally mounted band antennae requiring minimal metal cutting on drillstring reduction of mechanical stresses |
| 04/29/2010 | WO2010047865A1 Nuclear logging tool calibration system and method |
| 04/29/2010 | WO2010046099A1 Method for determining the wear of a force-loaded linkage of an earthwork device |
| 04/29/2010 | WO2010046050A2 Apparatus and methods for improved cement plug placement |
| 04/29/2010 | WO2010046021A1 Methods and apparatus for improved cement plug placement |
| 04/29/2010 | WO2010046020A1 Apparatus and methods for through-casing remedial zonal isolation |
| 04/29/2010 | WO2010046019A1 Apparatus and methods for improved cement plug placement |
| 04/29/2010 | WO2010006302A3 "system and method for using a resistivity tool with wired drill pipe and one or more wells" |
| 04/29/2010 | WO2010001237A3 Transducer assemblies for downhole tools |
| 04/29/2010 | US20100106422 Fluids Lifting Tool |
| 04/29/2010 | US20100101865 Device for protecting a geotechnical or geophysical probe |
| 04/29/2010 | US20100101861 Two way check shot and reverse vsp while drilling |
| 04/29/2010 | US20100101787 Using An Acoustic Ping and Sonic Velocity to Control an Artificial Lift Device |
| 04/29/2010 | US20100101786 Method and system for placing sensor arrays and control assemblies in a completion |
| 04/29/2010 | US20100101785 Hydraulic System and Method of Monitoring |
| 04/29/2010 | US20100101774 Measurement and Control of Liquid Level in Wells |
| 04/29/2010 | US20100101319 Pressure interference testing for estimating hydraulic isolation |
| 04/29/2010 | DE112008001791T5 Vorrichtungen und Verfahren zum Abführen von Wärme bei einem Untertagewerkzeug Devices and methods for removing heat in a downhole tool |
| 04/28/2010 | EP2180349A2 Downhole surveying utilizing multiple measurements |
| 04/28/2010 | EP2180140A2 Active seismic monitoring of fracturing operations |
| 04/28/2010 | EP2180137A1 Apparatus and methods for through-casing remedial zonal isolation |
| 04/28/2010 | CN201443393U Pressure tapping connector for oil deposit flow simulation experiment |
| 04/28/2010 | CN201443392U Oil well passive positive displacement liquid meter |
| 04/28/2010 | CN201443391U Exploratory well pressure and flow integrated device |
| 04/28/2010 | CN201443390U Oil well test vehicle winch power device with mechanical stable speed |
| 04/28/2010 | CN201443389U Oil well data acquiring device combined with embedded digital video processing technology |
| 04/28/2010 | CN201443388U Device for continuously and automatically metering output of oil well |
| 04/28/2010 | CN201443387U Electronic release |
| 04/28/2010 | CN201443332U Uniform steam injection and wellhead test device of horizontal well |
| 04/28/2010 | CN201443326U Horizontal well telescopic printing lead stamp |
| 04/28/2010 | CN101699029A High-pressure clamped sealing gas injection tool being used for leak detection of tube column and having function of trip prevention |
| 04/28/2010 | CN101699028A System for controlling positioning arm of logging tool |
| 04/28/2010 | CN101699027A Underground oil- water two-phase flow rate measuring method used for low production liquid horizontal well |
| 04/27/2010 | US7706640 Telecommunication optical cable for gas pipeline applications having built-in leakage detecting device |
| 04/27/2010 | US7705878 Method and apparatus to create a down-hole video log to transmit down-hole video data |
| 04/27/2010 | US7705295 Methods and systems for determining mud flow velocity from measurement of an amplitude of an artificially induced radiation |
| 04/27/2010 | US7705294 Method of visualizing target objects in a fluid-carrying pipe |
| 04/27/2010 | US7703548 Magnetic ranging while drilling parallel wells |
| 04/27/2010 | US7703515 Methods and apparatus for communicating across casing |
| 04/27/2010 | US7703514 Optical fiber system and method for wellhole sensing of fluid flow using diffraction effect of faraday crystal |
| 04/27/2010 | US7703507 Downhole tool delivery system |
| 04/27/2010 | US7703318 Permanently eccentered formation tester |
| 04/27/2010 | CA2401744C Use of downhole high pressure gas in a gas-lift well |
| 04/22/2010 | WO2010045277A1 Downhole annular measurement system and method |
| 04/22/2010 | WO2010045115A2 Treating subsurface hydrocarbon containing formations and the systems, methods, and processes utilized |
| 04/22/2010 | WO2010043690A1 Method for installing sensors in a borehole |
| 04/22/2010 | WO2010014826A3 Apparatus and method for generating formation textural feature images |
| 04/22/2010 | WO2010014621A3 Apparatus and method for detecting poor hole cleaning and stuck pipe |
| 04/22/2010 | WO2010014273A3 Mud channel characterization over depth |
| 04/22/2010 | WO2010009031A3 Method of ranking geomarkers and compositional allocation of wellbore effluents |
| 04/22/2010 | WO2010006041A3 System for measuring shear stress in downhole tubulars |
| 04/22/2010 | WO2009151902A3 Method for selecting well measurements |
| 04/22/2010 | WO2009137834A3 A method and apparatus for ion-selective discrimination of fluids downhole |
| 04/22/2010 | WO2009133474A3 Wired drill pipe cable connector system |
| 04/22/2010 | US20100100329 Downhole surveying utilizing multiple measurements |
| 04/22/2010 | US20100097890 Methods and apparatuses for data collection and communication in drill string components |
| 04/22/2010 | US20100097064 Flux Plane Locating in an Underground Drilling System |
| 04/22/2010 | US20100096187 Through drillstring logging systems and methods |
| 04/22/2010 | US20100096186 Downhole surveying utilizing multiple measurements |
| 04/22/2010 | US20100096125 Active seismic monitoring of fracturing operations |
| 04/22/2010 | US20100095760 Shock and vibration environmental recorder for wellbore instruments |
| 04/22/2010 | US20100095759 Method and apparatus for pressure measurements in well testing |
| 04/22/2010 | DE102008056005B3 Elektrooptisches Messsystem Electro-optical measurement system |
| 04/22/2010 | CA2741318A1 Downhole application for a backpressure valve |
| 04/22/2010 | CA2683359A1 Downhole surveying utilizing multiple measurements |
| 04/21/2010 | EP2177713A1 Methods and apparatus for improved cement plug placement |
| 04/21/2010 | EP2177712A1 Apparatus and methods for improved cement plug placement |
| 04/21/2010 | EP2177710A1 Three dimensional steerable system |
| 04/21/2010 | EP2176511A2 Detecting acoustic signals from a well system |
| 04/21/2010 | EP2176507A1 Rock drill apparatus |
| 04/21/2010 | CN201439715U Magnetic source generator |
| 04/21/2010 | CN201439714U Special test pipe nipple for annulus test mine entrance |
| 04/21/2010 | CN101696629A Physical model test device for evaluating sand preventing process of vertical well |
| 04/21/2010 | CN101113945B Oil gas well high-energy gas air-pumping medicament experiment evaluating device |
| 04/20/2010 | US7699114 Electro-optic cablehead and methods for oilwell applications |
| 04/20/2010 | US7699103 Method and system for inserting a fiber optical sensing cable into an underwater well |
| 04/20/2010 | CA2607078C Cable integrity monitor for electromagnetic telemetry systems |
| 04/20/2010 | CA2596349C Telemetry system with an insulating connector |
| 04/20/2010 | CA2471067C Methods and apparatus for actuating a downhole tool |
| 04/20/2010 | CA2407484C Reservoir monitoring |
| 04/15/2010 | WO2010042383A2 Method for correcting the measured concentrations of gas components in drilling mud |
| 04/15/2010 | WO2010041207A1 Reservoir monitoring apparatus and method |
| 04/15/2010 | US20100089653 Isolation system for drilling systems |
| 04/15/2010 | US20100089572 Cased borehole tool orientation measurement |
| 04/15/2010 | US20100089571 Coiled Tubing Gamma Ray Detector |
| 04/15/2010 | US20100089567 Measurement Device in a Horizontal Well |
| 04/15/2010 | US20100089143 Reservoir monitoring apparatus and method |
| 04/15/2010 | US20100089142 process utilizing natural carbon-13 isotope for identification of early breakthrough of injection water in oil wells |
| 04/15/2010 | US20100089141 Downhole annular measurement system and method |