| Patents for E21B 47 - Survey of boreholes or wells (31,352) |
|---|
| 07/13/2011 | CN102121376A Intelligent coal seam gas pressure tester |
| 07/13/2011 | CN102121375A Method for processing digital signal of high-temperature core sampler of continuous inclinometer |
| 07/13/2011 | CN102121374A Borehole time domain pulse electromagnetic method for detecting electrical resistivity of stratum out of metal bushing |
| 07/12/2011 | US7975778 Borehole drilling control system, method and apparatus |
| 07/12/2011 | US7975541 Folding ultrasonic borehole imaging tool |
| 07/12/2011 | CA2680869C Em-guided drilling relative to an existing borehole |
| 07/12/2011 | CA2650316C Casing or work string orientation indicating apparatus and methods |
| 07/12/2011 | CA2585007C Telemetry transmitter optimization using time domain reflectometry |
| 07/12/2011 | CA2485664C Downhole tool deployment safety system and methods |
| 07/12/2011 | CA2440907C Borehole surveying |
| 07/07/2011 | WO2011082122A1 Downhole data transmission system |
| 07/07/2011 | WO2011082066A1 Radio frequency identification well delivery communication system and method |
| 07/07/2011 | WO2011082057A2 Calibration method for a microresistivity logging tool |
| 07/07/2011 | WO2011081979A1 Remote drilling and completions management |
| 07/07/2011 | WO2011081723A2 Pressure and flow control in drilling operations |
| 07/07/2011 | WO2011081684A1 Generating power in a well |
| 07/07/2011 | WO2011081552A1 Method for determining the profile of an inflow and the parameters of a well-surrounding area in a multipay well |
| 07/07/2011 | WO2011080640A2 Look ahead advance formation evaluation tool |
| 07/07/2011 | WO2011080290A1 Thermography logging tool |
| 07/07/2011 | WO2011079915A2 Wireless network discovery algorithm and system |
| 07/07/2011 | WO2011079914A1 Acoustic transceiver with adjacent mass guided by membranes |
| 07/07/2011 | WO2011059555A3 System and method for determining stretch or compression of a drill string |
| 07/07/2011 | WO2011044028A3 Oilfield operation using a drill string |
| 07/07/2011 | WO2011037595A3 Method and apparatus for determining locations of multiple casings within a wellbore conductor |
| 07/07/2011 | WO2011008405A3 Isotopic identification of production by individual formations in commingled gas wells |
| 07/07/2011 | US20110164468 Method and system of transmitting acoustic signals from a wellbore |
| 07/07/2011 | US20110163890 Down-hole wireless communication system |
| 07/07/2011 | US20110163830 Flow line electric impedance generation |
| 07/07/2011 | US20110162889 Boring tool control using remote locator |
| 07/07/2011 | US20110162835 Interface for deploying wireline tools with non-electric string |
| 07/07/2011 | US20110162834 Surface instrumentation configuration for drilling rig operation |
| 07/07/2011 | US20110162446 Linearized torque flow sensor |
| 07/07/2011 | CA2785922A1 A method for determination of an inflow profile and parameters of a bottom-hole area in a multipay well |
| 07/07/2011 | CA2785816A1 Remote drilling and completions management |
| 07/07/2011 | CA2785697A1 Wireless network discovery algorithm and system |
| 07/07/2011 | CA2785651A1 Downhole data transmission system |
| 07/07/2011 | CA2785344A1 Acoustic transceiver with adjacent mass guided by membranes |
| 07/06/2011 | EP2341214A1 Thermography logging tool |
| 07/06/2011 | EP2341213A1 Methods and devices for analyzing and controlling the propagation of waves in a borehole generated by water hammer |
| 07/06/2011 | EP2340354A2 Method for correcting the measured concentrations of gas components in drilling mud |
| 07/06/2011 | CN201891411U Side wall contact device of microsphere logging instrument |
| 07/06/2011 | CN201891392U Four-arm and dual-roller centralizer |
| 07/06/2011 | CN1727636B Method and system for accessing subterranean deposits from the surface |
| 07/06/2011 | CN1601049B Automatic downlink system |
| 07/06/2011 | CN102116170A Method for determining grid type layer-through drilling intervals of floor roadway |
| 07/06/2011 | CN102116148A Machine exploitation test pipe string for floating drilling rig |
| 07/06/2011 | CN102116147A Slip ring for oil drilling tool |
| 07/06/2011 | CN102116146A Electric submersible pump testing pipe string used under condition of underwater wellhead |
| 07/06/2011 | CN101092874B Method for measuring formation properties with a time-limited formation test |
| 07/06/2011 | CN101057060B An apparatus for measuring an internal dimension of a well-bore ,system and well logging tool comprising the device |
| 07/05/2011 | CA2669721C Method and apparatus for performing laser operations downhole |
| 07/05/2011 | CA2584841C Telemetry wave detection apparatus and method |
| 07/04/2011 | CA2689756A1 Method and apparatus for decoding a signal sent from a measurement-while-drilling tool |
| 06/30/2011 | WO2011079221A2 Downhole tools with electro-mechanical and electro-hydraulic drives |
| 06/30/2011 | WO2011079171A2 Shock tolerant heat dissipating electronics package |
| 06/30/2011 | WO2011079169A2 Hydraulic deployment of a well isolation mechanism |
| 06/30/2011 | WO2011079107A2 Detecting broadside and directional acoustic signals with a fiber optical distributed acoustic sensing (das) assembly |
| 06/30/2011 | WO2011079098A2 Detecting broadside and directional acoustic signals with a fiber optical distributed acoustic sensing (das) assembly |
| 06/30/2011 | WO2011077235A1 Method and module for determination of erosion in systems |
| 06/30/2011 | WO2011077218A2 Automatic modular maintenance device operating in the annulus of a well for the production of hydrocarbons |
| 06/30/2011 | WO2011077201A2 System and method for torque stabilization of a drilling system |
| 06/30/2011 | WO2011076874A1 Use of nanoparticles for labelling oil field injection waters |
| 06/30/2011 | WO2011075835A1 A multi-step solvent extraction process for heavy oil reservoirs |
| 06/30/2011 | WO2011051435A3 Downhole system |
| 06/30/2011 | WO2011037925A3 Method for controlling fluid production from a wellbore by using a script |
| 06/30/2011 | WO2011031863A3 Drill bit with rate of penetration sensor |
| 06/30/2011 | WO2011028530A3 Sourceless gamma ray production system and methods |
| 06/30/2011 | WO2011023934A3 Sonically activating settable compositions and methods of activating them |
| 06/30/2011 | WO2011017415A3 Systems and methods for monitoring cement quality in a well |
| 06/30/2011 | WO2011017413A3 Use of fiber optics to monitor cement quality |
| 06/30/2011 | US20110161133 Planning and Performing Drilling Operations |
| 06/30/2011 | US20110155463 System and apparatus for directing a survey of a well |
| 06/30/2011 | US20110155369 Method for optimizing reservoir production analysis |
| 06/30/2011 | US20110155368 Radio frequency identification well delivery communication system and method |
| 06/30/2011 | US20110154896 Apparatus for a borehole influx fluid parameters measurement |
| 06/30/2011 | US20110154895 Method for a formation properties determination |
| 06/30/2011 | CA2785067A1 Electric hydraulic interface for a modular downhole tool |
| 06/30/2011 | CA2785065A1 Shock tolerant heat dissipating electronics package |
| 06/30/2011 | CA2784763A1 Use of nanoparticles for labelling oil field injection waters |
| 06/30/2011 | CA2781565A1 Detecting broadside and directional acoustic signals with a fiber optical distributed acoustic sensing (das) assembly |
| 06/30/2011 | CA2726526A1 Method for determining properties of a formation |
| 06/30/2011 | CA2726506A1 An apparatus for a borehole influx fluid parameters' measurement |
| 06/30/2011 | CA2689477A1 System and apparatus for directing a survey of a well |
| 06/29/2011 | EP2339114A2 Analyzing toolface velocity to detect detrimental vibration during drilling |
| 06/29/2011 | EP2337920A2 Downhole vibration monitoring for reaming tools |
| 06/29/2011 | CN201886500U Radio frequency Identification label |
| 06/29/2011 | CN201884050U Flow rate gap bridge device for gas drainage pipeline |
| 06/29/2011 | CN201884027U Interface box |
| 06/29/2011 | CN201884026U Testing device for excitation tensile force components of pulse generators |
| 06/29/2011 | CN201884025U Pressure fluctuation monitor |
| 06/29/2011 | CN201884024U Fiber grating sensor-based system used for monitoring coalbed methane well |
| 06/29/2011 | CN201884023U Drill deposit thickness ultrasonic measurement system |
| 06/29/2011 | CN201884022U Portable angle difference measure gauge |
| 06/29/2011 | CN201884021U Sliding type pipe orifice auxiliary device of borehole inclinometer |
| 06/29/2011 | CN201884020U Self-learning mechanism based on-line photoelectric oil-water-gas triphase flow rate measuring device |
| 06/29/2011 | CN201884017U Water flow adjusting device adopting dual-non-collecting lamination single measuring technology |
| 06/29/2011 | CN201883995U Compressed type test seal tool for directional well |
| 06/29/2011 | CN201883726U Positive-voltage explosion-proof instrument room |
| 06/29/2011 | CN102108859A Method and device for separate layer pressure and fluid production section testing and negative pressure de-plugging for oilfield |
| 06/29/2011 | CN102108858A Ground simulation measuring device and method for formation pressure while drilling |