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)
11/2012
11/01/2012WO2012149375A2 Spring force nodal mounting method for resonator sensor
11/01/2012WO2012149133A2 Automated systems and methods for make-up and break-out of tubulars
11/01/2012WO2012148902A2 Hybrid transponder system for long-range sensing and 3d localization
11/01/2012WO2012148890A2 Methods of employing and using a hybrid transponder system for long-range sensing and 3d localization
11/01/2012WO2012148804A2 Acoustic telemetry of subsea measurements from an offshore well
11/01/2012WO2012148688A2 A method of providing flow control devices for a production wellbore
11/01/2012WO2012148628A2 Flow-induced electrostatic power generator for downhole use in oil and gas wells
11/01/2012WO2012146733A1 Downhole tool
11/01/2012WO2012146047A1 Geological exploration method for making plan and elevation drawings directly by rotational tin network and non-profiling method
11/01/2012WO2012106636A3 Device for verifying detonator connection
11/01/2012US20120277997 Device and a system and a method of examining a tubular channel
11/01/2012US20120273274 Boring element for a ground boring device
11/01/2012US20120273272 Lockable core barrel head for drilling system and survey instrument assembly provided with a connection link for arrangement in a drilling system
11/01/2012US20120273271 Measurement-while-drilling mud pulser and method for controlling same
11/01/2012US20120273270 Look Ahead Advance Formation Evaluation Tool
11/01/2012US20120273269 Long distance high power optical laser fiber break detection and continuity monitoring systems and methods
11/01/2012US20120273194 Methods of calculating a fluid composition n a wellbore
11/01/2012US20120273193 Nmr analysis of unconventional reservoir rock samples
11/01/2012US20120273192 Hybrid Transponder System For Long-Range Sensing and 3D Localization
11/01/2012US20120273191 Methods of employing and using a hybrid transponder system for long-Range sensing and 3D localization
11/01/2012US20120273186 Fluid minotiring and flow characterization
11/01/2012CA2834479A1 Downhole tool
11/01/2012CA2834444A1 Geological exploration methods of directly constructing high-precision three-dimensional models, plans and sections for geological exploration based on the non-section methods andthe rotary-matching networks formed by triangulated irregulars
11/01/2012CA2834172A1 Automated systems and methods for make-up and break-out of tubulars
11/01/2012CA2833243A1 Flow-induced electrostatic power generator for downhole use in oil and gas wells
11/01/2012CA2832323A1 Methods of employing and using a hybrid transponder system for long-range sensing and 3d localization
10/2012
10/31/2012EP2518266A2 Measurement-while-drilling mud pulser and method for controlling same
10/31/2012EP2518265A1 Downhole tool
10/31/2012EP2518259A2 Instrumented internal blowout preventer valve for measuring drill string drilling parameters
10/31/2012EP2516804A1 Acoustic transceiver with adjacent mass guided by membranes
10/31/2012EP2516803A1 Bubble logging tool
10/31/2012EP2516802A1 Tilt meter including optical fiber sections
10/31/2012EP2516801A2 Downhole tools with electro-mechanical and electro-hydraulic drives
10/31/2012EP2516800A2 Electric hydraulic interface for a modular downhole tool
10/31/2012EP2516799A2 Shock tolerant heat dissipating electronics package
10/31/2012EP2516795A2 Hydraulic deployment of a well isolation mechanism
10/31/2012EP2516794A2 Automatic modular maintenance device operating in the annulus of a well for the production of hydrocarbons
10/31/2012DE102010008823B4 Verfahren und Vorrichtungen zur Vermessung der räumlichen Lage eines Bohrkopfs Methods and devices for measuring the spatial position of a drill head
10/31/2012CN202511796U Laser orientation instrument
10/31/2012CN202510113U High-capacity logging data real-time storage
10/31/2012CN202510112U Mud pressure pulse generator
10/31/2012CN202510111U Multi-channel data acquisition circuit applied to array induction logging instrument
10/31/2012CN202510110U Dynamic signal pressure transmitter
10/31/2012CN202510109U Pressing device of oil-water well
10/31/2012CN202510108U Oil well production back-pressure simulator
10/31/2012CN202510107U Measurement while drilling system for drill carriage
10/31/2012CN202510106U Magnetic damping liquid type accelerometer for underground measurement
10/31/2012CN202510105U Hall proximity switch sensor
10/31/2012CN202510104U Mining explosion-proof drilling detection robot
10/31/2012CN202510103U Centralized type multifunctional logging sensor
10/31/2012CN202510102U Three-parameter headstall logging instrument
10/31/2012CN202510101U Side injection device of intelligent oil field variable frequency water feed pump
10/31/2012CN202510100U Coil system of tricomponent sensing logger
10/31/2012CN202510098U Hole depth monitoring device of rotary drill
10/31/2012CN202510089U Intelligent well control system
10/31/2012CN202510083U Double-packer nipple of stratum tester
10/31/2012CN202510080U Wellhead pressure sampling measurement device of single well
10/31/2012CN202510071U Logging instrument pushing device for horizontal well production
10/31/2012CN202510037U Drilling rig with counting device
10/31/2012CN102758621A Preparation method for density logger graduation high density value standard die block
10/31/2012CN102758620A Well control and wellhead equipment pressure testing device
10/31/2012CN102758619A Automated well control method and apparatus
10/31/2012CN102758618A Large-diameter tool inductor operating under pressure
10/31/2012CN102758617A Method for carrying out temperature fine well logging by utilizing distributed optical fiber
10/31/2012CN102758616A Multi-point formation pressure measuring instrument
10/31/2012CN102758615A High-accuracy smart dual-core well depth measuring device
10/31/2012CN102758614A ZigBee-based wireless dynamometer
10/31/2012CN102758613A Drill pump error detection and diagnostic method based on kinetic model and system of method
10/31/2012CN102758612A Multi-parameter layered testing method
10/31/2012CN102758611A Bamboo joint connecting method of logger string
10/31/2012CN102758610A Gas-liquid separation low-production fluid three-phase flow measuring method
10/31/2012CN102758609A Oil well three-phase flow measuring method under condition of high water cut
10/31/2012CN102758608A Ball-throwing type release method and drilling tool for same
10/31/2012CN102758607A Rear-entry type release method for cable
10/31/2012CN102758606A Ground injection system for coal bed gas testing
10/31/2012CN102758605A Optical fiber test system fixed in oil well
10/31/2012CN101892831B Method for measuring displacement efficiency of cement slurry by using temperature sensing device
10/31/2012CN101713288B Measuring instrument for distance between adjacent wells by electromagnetic detection while drilling
10/31/2012CN101598017B Device for measuring porosity of azimuth neutrons during drilling
10/30/2012US8301383 Estimating in situ mechanical properties of sediments containing gas hydrates
10/30/2012US8297377 Method and system for accessing subterranean deposits from the surface and tools therefor
10/30/2012US8297376 Coring apparatus with sensors
10/30/2012US8297354 Tool and method for determining formation parameter
10/30/2012US8297353 Use of micro-electro-mechanical systems (MEMS) in well treatments
10/30/2012US8297352 Use of micro-electro-mechanical systems (MEMS) in well treatments
10/30/2012US8297351 Downhole sensing system using carbon nanotube FET
10/30/2012US8297350 Method and system for accessing subterranean deposits from the surface
10/30/2012CA2616154C Orientation sensing apparatus and a method for determining an orientation
10/30/2012CA2540648C System and method for correcting errors in depth for measurements made while drilling
10/30/2012CA2510214C Flow-biased sequencing valve
10/28/2012CA2738271A1 Measurement-while-drilling mud pulser and method for controlling same
10/26/2012WO2012145637A2 Apparatus and method for tool face control using pressure data
10/26/2012WO2012145528A2 Arcnet use in downhole equipment
10/26/2012WO2012103063A3 Apparatus and method for predicting vertical stress fields
10/26/2012WO2012096874A3 Fluidic density measurements based on beta particles detection
10/26/2012WO2012087604A3 System and method for moniitoring strain & pressure
10/26/2012WO2012079768A3 Equipment and methods for determining waiting-on-cement time in a subterrenean well
10/26/2012WO2012074834A8 Logging-while-drilling tool incorporating electronic radiation generator and method for using same
10/26/2012WO2011090865A8 Detecting and meausuring a coring sample
10/26/2012CA2830522A1 Arcnet use in downhole equipment
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