Patents
Sitemap › E21 - Earth or rock drilling; Mining › E21B - Earth or rock drilling; Obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells › E21B 47 - Survey of boreholes or wells
Patents for E21B 47 - Survey of boreholes or wells (31,352)
11/2007
11/06/2007CA2418530C Method and system for performing an operation in a well
11/01/2007WO2007122357A1 Method and device for determining the existence and location of stress-inducing forces on a rod
11/01/2007WO2007103245A3 Automated steerable hole enlargement drilling device and methods
11/01/2007WO2007033070A3 Method and system for evaluating task completion times to data
11/01/2007US20070255779 Method For Solving Implicit Reservoir Simulation Matrix
11/01/2007US20070252589 Apparatus Detecting Relative Body Movement
11/01/2007US20070251688 Non-intrusive pressure gage
10/2007
10/31/2007EP1319116B1 Evaluation of multilayer reservoirs
10/31/2007CN200968214Y Blowout prevention thread plug
10/31/2007CN200968213Y Transmission device for pumping and depth point out sensor
10/31/2007CN101065555A Methods and apparatus for communicating across casing
10/31/2007CN100346056C Depth correction
10/30/2007US7289943 Lumping and delumping method for describing hydrocarbon-containing fluids
10/30/2007US7289871 Drilling apparatus
10/30/2007US7287609 Drilling a borehole
10/30/2007US7287585 Methods of quantifying gas content of a gas-sorbed formation solid
10/30/2007US7287337 Pitch sensing in drilling machines
10/30/2007CA2442666C Fibre optic well control system
10/30/2007CA2440624C System and method for controlling downhole tools
10/30/2007CA2428876C Non-intrusive temperature sensor for measuring internal temperature of fluids within pipes
10/30/2007CA2378059C Measurement of propagating acoustic waves in compliant pipes
10/30/2007CA2270268C Orienting tool and method
10/30/2007CA2247844C A sinker bar for cable-operated well apparatus in a hydrocarbon well
10/28/2007CA2586674A1 Determination and control of wellbore fluid level, output flow, and desired pump operating speed, using a control system for a centrifugal pump disposed within the wellbore
10/25/2007WO2007120786A1 Methods for designing and fabricating earth-boring rotary drill bits having predictable walk characteristics and drill bits configured to exhibit predicted walk characteristics
10/25/2007WO2007120072A1 Electrical cased well-logging method
10/25/2007WO2007095153B1 System and method for pump noise cancellation in mud pulse telemetry
10/25/2007US20070247329 System and Method for Downhole Telemetry
10/25/2007US20070247328 System and Method For Downhole Telemetry
10/25/2007US20070247162 Tracking the Positional Relationship Between a Boring Tool and One or More Buried Lines using a Composite Magnetic Signal
10/25/2007DE102007015727A1 Verfahren und Vorrichtung zum Kalibrieren von Untertagewerkzeugen bezüglich Drift Method and apparatus for calibration of downhole tools with respect to drift
10/25/2007CA2649498A1 Electrical cased well-logging method
10/25/2007CA2648192A1 Methods for designing and fabricating earth-boring rotary drill bits having predictable walk characteristics and drill bits configured to exhibit predicted walk characteristics
10/25/2007CA2632759A1 Programmable data acquisition for tubular objects
10/24/2007CN200965467Y Curve tunnel central line guide meter
10/24/2007CN200964852Y Supersonic transducer sealed with O-shaped seal ring
10/24/2007CN200964851Y By-pass device for logging of horizontal well
10/24/2007CN200964850Y Oil pipe coupling monitoring device
10/24/2007CN200964849Y Water well seal tester sealing segment with pressure passage
10/24/2007CN200964848Y Integral water well seal tester with flow testing function
10/24/2007CN200964847Y Intelligent seal-testing flow-measuring and adjusting device
10/24/2007CN200964846Y Electronic pressure meter structure
10/24/2007CN200964845Y Dynamic water level measuring device for water well
10/24/2007CN200964844Y Safety latch of sensor
10/24/2007CN200964843Y Integral testing thrower-salvager
10/24/2007CN200964842Y Plug type sealing stopper
10/24/2007CN200964841Y Oil well indication diagram data sampling device
10/24/2007CN200964840Y High pressure container for detecting perforation efficiency
10/24/2007CN101059076A Casing resonant radial flexural modes in cement bond evaluation
10/24/2007CN101059075A Method for forecasting slurry performance in emulating horizontal directional drilling construction and its experimental device
10/24/2007CN100344856C Well closing pressure measuring method for low pressure low permeation oil field oil water well
10/23/2007US7284623 Method of drilling a bore hole
10/23/2007US7284606 Downhole position locating device with fluid metering feature
10/23/2007US7284605 Apparatus and methods for reducing stand-off effects of a downhole tool
10/23/2007CA2450391C Logging while tripping with a modified tubular
10/23/2007CA2358135C Distributed selectable latent fiber optic sensors
10/23/2007CA2262911C Method and apparatus for the downhole metering and control of fluids produced from wells
10/21/2007CA2666695A1 System and method for downhole telemetry
10/19/2007CA2726695A1 Telemetry wave detection apparatus and method
10/18/2007WO2007117846A2 Method and apparatus for sensing a borehole characteristic
10/18/2007WO2007116006A1 Method for production metering of oil wells
10/18/2007WO2007072385A3 System and method for determining onset of failure modes in a positive displacement pump
10/18/2007US20070242265 Borehole Imaging
10/18/2007US20070242262 Combined bragg grating wavelength interrogator and brillouin backscattering measuring instrument
10/18/2007US20070241277 System for Delivery of a Tracer in Fluid Transport Systems and Use Thereof
10/18/2007US20070240903 Earth penetrating apparatus and method employing radar imaging and rate sensing
10/18/2007US20070240514 Testing of bottomhole samplers using acoustics
10/18/2007CA2646145A1 Method and apparatus for sensing a borehole characteristic
10/18/2007CA2645253A1 Method for production metering of oil wells
10/17/2007EP1844213A1 A method and a system for determining the position of a drill bit
10/17/2007EP1613981B1 Use of pattern recognition in a measurement of formation transit time for seismic checkshots
10/17/2007EP1230464B1 High data rate acoustic telemetry system
10/17/2007CN200961478Y Optical fiber test cable of horizontal well for petroleum and thermal exploitation
10/17/2007CN200961477Y Anti-blowby eccentric water distributor for checking seal , adjusting and measuring
10/17/2007CN200961476Y Well-control pressure tester
10/17/2007CN200961474Y Electric and random adjustment plugging-determining linked operation pipe string of high water-containing oil well
10/17/2007CN101057060A An apparatus for measuring an internal dimension of a well-bore
10/17/2007CN101054897A Axial resolution determining device and system
10/17/2007CN101054896A Eight-arm mechanical pusher
10/17/2007CN101054893A Dissection type packer
10/17/2007CN100343484C Combined type sensor devices and quantitative degassing apparatus
10/17/2007CN100343483C A measuring sonde for a hydrocarbon well
10/17/2007CN100343482C System for performing operations and for improving production in wells
10/16/2007US7283941 Computer system and method for modeling fluid depletion
10/16/2007US7283910 Incremental depth measurement for real-time calculation of dip and azimuth
10/16/2007US7283061 Method and system for performing operations and for improving production in wells
10/16/2007US7283060 Control apparatus for automated downhole tools
10/16/2007US7281578 Apparatus and methods for positioning in a borehole
10/16/2007US7281577 Downhole measurement system and method
10/16/2007US7281422 Method for borehole conductivity profiling
10/16/2007US7281415 Non-intrusive multiphase flow meter
10/16/2007CA2444657C Apparatus and methods for conveying instrumentation within a borehole using continuous sucker rod
10/16/2007CA2329192C Logging device data dump probe
10/11/2007WO2007115059A2 Vaccine against streptococci
10/11/2007US20070237467 System and Method for Performing and Protecting Hybrid Line Splices
10/11/2007US20070235226 Method and apparatus for rescaling measurements while drilling in different environments
10/11/2007US20070235224 Drill pipe with vibration dampening liner
10/11/2007US20070235199 Methods and apparatus for actuating a downhole tool
10/11/2007US20070235186 Pressure communication assembly external to casing with connectivity to pressure source
10/11/2007US20070235185 Measuring a Characteristic of a Well Proximate a Region to be Gravel Packed
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