| Patents for E21B 47 - Survey of boreholes or wells (31,352) |
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| 02/24/2011 | WO2011022255A2 Attachment of control lines to outside of tubular |
| 02/24/2011 | WO2011022220A2 Fiber optic gravel distribution position sensor system |
| 02/24/2011 | WO2011022008A1 Optical fiber reflective sensor interrogation device |
| 02/24/2011 | WO2011021053A2 Apparatus and method |
| 02/24/2011 | WO2011020901A2 System for determination of downhole position |
| 02/24/2011 | WO2010144244A3 Sending a seismic trace to surface after a vertical seismic profiling while drilling measurement |
| 02/24/2011 | WO2010141287A3 Wireless transmission system and system for monitoring a drilling rig operation |
| 02/24/2011 | WO2010135584A9 Downhole sensor tool with a sealed sensor outsert |
| 02/24/2011 | WO2010132383A3 Compensated directional resistivity measurements |
| 02/24/2011 | WO2010129677A3 Apparatus and method for predicting properties of earth formations |
| 02/24/2011 | WO2010129526A3 Methods and apparatuses for measuring drill bit conditions |
| 02/24/2011 | WO2010118138A3 Method for estimation of bulk shale volume in a real-time logging-while-drilling environment |
| 02/24/2011 | WO2010101733A3 Tool for locating and plugging lateral wellbores |
| 02/24/2011 | US20110042080 Determining fracture orientation using wellbore acoustic radial profiles |
| 02/24/2011 | US20110042079 Method and apparatus for pipe-conveyed well logging |
| 02/24/2011 | US20110042077 Formation tester tool assembly |
| 02/24/2011 | US20110042076 Method for determining fluid control events in a borehole using a dynamic annular pressure control system |
| 02/24/2011 | US20110042075 Logging system and methodology |
| 02/24/2011 | US20110042074 Methods of Long-Term Gravimetric Monitoring of Carbon Dioxide Storage in Geological Formations |
| 02/24/2011 | US20110042073 Gravity interpretation workflow in injection wells |
| 02/24/2011 | US20110042072 Method and system for using wireline configurable wellbore instruments with a wired pipe string |
| 02/24/2011 | US20110042071 Clean fluid sample for downhole measurements |
| 02/24/2011 | US20110042070 Fluid density from downhole optical measurements |
| 02/24/2011 | US20110042064 Fiber Optic Inner String Position Sensor System |
| 02/24/2011 | US20110042061 Fiber Optic Gravel Distribution Position Sensor System |
| 02/24/2011 | DE102008062754B4 Verfahren und System zur Übertragung von Daten von einem Gerät zu einer Empfangseinheit A method and system for transmitting data from a device to a receiving unit |
| 02/24/2011 | CA2771761A1 Gravity interpretation workflow in injection wells |
| 02/24/2011 | CA2771653A1 System for determination of downhole position |
| 02/24/2011 | CA2770946A1 Optical fiber reflective sensor interrogation device |
| 02/24/2011 | CA2770209A1 Attachment of control lines to outside of tubular |
| 02/24/2011 | CA2736398A1 Inclination measurement devices and methods of use |
| 02/23/2011 | EP2286063A2 Downlink while pumps are off |
| 02/23/2011 | EP2286062A2 Using models for equilibrium distributions of asphaltenes in the presence of gor gradients to determine sampling procedures |
| 02/23/2011 | CN101979830A Force monitoring tractor |
| 02/23/2011 | CN101979829A Underground magnetic navigation method |
| 02/23/2011 | CN101979827A Method for supporting horizontal section wellbore for coal bed gas horizontal well |
| 02/22/2011 | US7894991 Statistical determination of historical oilfield data |
| 02/22/2011 | US7894577 Method for downhole, non-isotopic generation of ionised radiation and an apparatus for use when practising the method |
| 02/22/2011 | US7894302 Drilling system comprising a plurality of borehole telemetry systems |
| 02/22/2011 | US7894300 Fluid characterization from acoustic logging data |
| 02/22/2011 | US7891427 System and method for management of steam flooding for oil wells |
| 02/22/2011 | US7891423 System and method for optimizing gravel deposition in subterranean wells |
| 02/22/2011 | US7891422 Sensing tool |
| 02/22/2011 | US7891417 Completion apparatus for measuring streaming potentials and determining earth formation characteristics |
| 02/22/2011 | US7891233 Blast movement monitor |
| 02/22/2011 | CA2497188C A measuring sonde for a hydrocarbon well |
| 02/22/2011 | CA2491942C Method for upward growth of a hydraulic fracture along a well bore sandpacked annulus |
| 02/22/2011 | CA2468136C Thermoacoustic electric power generation |
| 02/22/2011 | CA2463103C Seismic monitoring of in situ conversion in a hydrocarbon containing formation |
| 02/19/2011 | CA2713326A1 Method and apparatus for pipe-conveyed well logging |
| 02/17/2011 | WO2011020059A1 Pipeline inspection apparatus and method |
| 02/17/2011 | WO2011020017A2 Method of measuring multi-phase fluid flow downhole |
| 02/17/2011 | WO2011019791A2 Thermal vapor stream apparatus and method |
| 02/17/2011 | WO2011019714A2 Methods and apparatus for determination of parameters related to a coiled tubing string |
| 02/17/2011 | WO2011019351A1 Method and system of transmitting acoustic signal from a wellbore |
| 02/17/2011 | WO2010117647A3 Electromagnetic logging between borehole and surface |
| 02/17/2011 | US20110036569 Down-hole transmitter system, method of inducing a transient electromagnetic field in an earth formation, method of obtaining a transient electromagnetic response signal, and method of producing a hydrocarbon fluid |
| 02/17/2011 | US20110036568 Method and apparatus for logging a well below a submersible pump deployed on coiled tubing |
| 02/17/2011 | US20110036557 Electrical Isolation Connector For Electromagnetic Gap Sub |
| 02/17/2011 | CA2771291A1 Pipeline inspection apparatus and method |
| 02/17/2011 | CA2770207A1 Methods and apparatus for determination of parameters related to a coiled tubing string |
| 02/17/2011 | CA2768860A1 Thermal vapor stream apparatus and method |
| 02/16/2011 | EP2283202A2 Wired drill pipe cable connector system |
| 02/16/2011 | CN201747365U Solid-liquid two-phase variable mass flow analogue system of complex structure well borehole |
| 02/16/2011 | CN201747364U Interval transit time curve reconstruction equipment |
| 02/16/2011 | CN201747363U Coal bed gas well completion mode evaluating experimental apparatus |
| 02/16/2011 | CN201747362U Detection device for mechanical tubing coupling |
| 02/16/2011 | CN201747361U Hole diameter probe |
| 02/16/2011 | CN201747360U Manual pressure testing device for well plugging device |
| 02/16/2011 | CN201747359U Mechanical wireless drilling-followed inclinometer |
| 02/16/2011 | CN201747358U Self-expansion packer wellbore simulation test device |
| 02/16/2011 | CN201747357U Logging sled |
| 02/16/2011 | CN201747356U Motor driven wheel type downhole creeper |
| 02/16/2011 | CN201747355U Cable arrangement device in well-logging winch |
| 02/16/2011 | CN201747354U Intelligent winch measurement panel |
| 02/16/2011 | CN201747353U Communication device of lines between short joints |
| 02/16/2011 | CN201747352U Shell of electromagnetic wave resistivity apparatus |
| 02/16/2011 | CN201747351U Lateral multi-lens endoscopic video well logging device |
| 02/16/2011 | CN201747350U Device for water pressure test of wire-line core drill with 75mm hole diameter under condition without drilling |
| 02/16/2011 | CN201747348U Novel electronic weight indicator |
| 02/16/2011 | CN201746269U Logging winch |
| 02/16/2011 | CN101976758A Electromagnetic wave transmitting antenna |
| 02/16/2011 | CN101976494A Real-time logging data acquisition and synchronous early-warning method |
| 02/16/2011 | CN101975065A Method for measuring mining stress of coal mine tunnel |
| 02/16/2011 | CN101975059A Mark-guide underground operation process |
| 02/16/2011 | CN101975058A Search method and device of borehole log data |
| 02/16/2011 | CN101975057A Real-time control drilling and production system for deep and ultra-deep wells |
| 02/16/2011 | CN101270666B Tunnel influence geological condition section-expanding horizontal drilling estimation and prediction method |
| 02/15/2011 | US7890200 Process-related systems and methods |
| 02/15/2011 | US7889596 Method and a system for determining the position of a drill bit |
| 02/15/2011 | US7888939 Tracking the positional relationship between a boring tool and one or more buried lines using a composite magnetic signal |
| 02/15/2011 | US7886845 Method and system for monitoring auxiliary operations on mobile drilling units and their application to improving drilling unit efficiency |
| 02/15/2011 | US7886844 Borehole survey method and apparatus |
| 02/15/2011 | US7886843 Method and device |
| 02/15/2011 | US7886842 Apparatus and method for orienting a wellbore servicing tool |
| 02/15/2011 | US7886820 Method and system for monitoring the incursion of particulate material into a well casing within hydrocarbon bearing formations including gas hydrates |
| 02/15/2011 | US7886817 Surface instrumentation configuration for drilling rig operation |
| 02/15/2011 | US7886591 Method for improving the determination of earth formation properties |
| 02/15/2011 | CA2649193C Measurement while drilling tool and method |
| 02/15/2011 | CA2600621C Multi-core strain compensated optical fiber temperature sensor |