Patents for E21B 47 - Survey of boreholes or wells (31,352)
03/2010
03/24/2010CN201428446Y Fractured reservoir physical simulation experimental device
03/24/2010CN201428445Y Novel logging tool for horizontal wells
03/24/2010CN201428444Y Dual-lateral and micro-lateral combined logging instrument
03/24/2010CN201428422Y Plug bump indicator for small-size drilling liner cementing
03/24/2010CN101680296A Apparatus, system, and method for determining injected fluid vertical placement
03/24/2010CN101680295A Method and apparatus for fluid migration profiling
03/24/2010CN101676755A Laser positioning device
03/24/2010CN101676521A Horizontal guiding drill while-drilling detection early warning acoustic wave excitation and signal processing system
03/24/2010CN101676520A Horizontal guiding drill while-drilling acoustic wave imaging detection early warning system and detection method thereof
03/24/2010CN101676519A Wake-up and management module of horizontal guiding drill while-drilling detection early warning power supply
03/24/2010CN101676518A Horizontal guiding drill while-drilling detection early warning system
03/24/2010CN101676517A Horizontal guiding drill pipeline locus autonomous surveying and drawing location system and surveying and drawing location method thereof
03/23/2010US7682074 True temperature computation
03/23/2010US7681663 Methods and systems for determining angular orientation of a drill string
03/23/2010US7681642 Method for logging after drilling
03/23/2010US7681640 Screen and method having a partial screen wrap
03/23/2010US7681450 Casing resonant radial flexural modes in cement bond evaluation
03/23/2010CA2455250C Non-intrusive multiphase flow meter
03/23/2010CA2435788C Pressure pulse generator for mwd
03/22/2010CA2678375A1 Electrically non-conductive sleeve for use in wellbore instrumentation
03/22/2010CA2676833A1 Apparatus for pumping fluids from a well
03/18/2010WO2010031052A2 Method of determining borehole conditions from distributed measurement data
03/18/2010WO2010030190A2 Riserless deep water well intervention system
03/18/2010WO2009155331A4 System, program product and related methods for estimating and managing crude gravity in real-time
03/18/2010WO2009152498A3 Using models for equilibrium distributions of asphaltenes in the presence of gor gradients to determine sampling procedures
03/18/2010WO2009151937A3 Layer stripping method
03/18/2010WO2009134578A3 Drilling system with drill string valves
03/18/2010US20100067329 Method of determining borehole conditions from distributed measurement data
03/18/2010US20100065329 Downhole telemetry apparatus and method
03/18/2010DE112008000354T5 Anordnung zum Bohren und Vermessen, Verfahren zum Bohren und Vermessen und Vorrichtung zum Elektroimpulsbohren Assembly for drilling and logging, method of drilling and logging and apparatus for electro pulse drilling
03/17/2010CN101675213A Ram bop position sensor
03/17/2010CN101675209A Method and apparatus for measuring a parameter within the well with a plug
03/17/2010CN101672179A Intelligent synchronous testing and adjusting method capable of simultaneously infusing, testing and regulating
03/17/2010CN101672170A Novel electric directional coring apparatus
03/17/2010CN100594369C Method and device for evaluating physical parameters of an underground reservoir from rock cuttings taken therefrom
03/17/2010CN100594289C Apparatus and method for measuring proppant insert depth
03/17/2010CN100594288C Oil pool development simulation system, upper pressure covering system and data processing method
03/17/2010CN100594287C In-situ hydrogen treatment method of to heated hydrocarbon containing fluid
03/16/2010US7678745 Viscosity reduction
03/16/2010US7677306 Hydraulic fracturing
03/16/2010CA2448419C Instrumentation for a downhole deployment valve
03/11/2010WO2010027839A2 Drill bit with weight and torque sensors
03/11/2010WO2010027837A1 Optical sensing system for wellhead equipment
03/11/2010WO2010027786A1 Data acquisition in an intelligent oil and gas field
03/11/2010WO2010027616A2 Electrical transmission between rotating and non-rotating members
03/11/2010WO2010009182A3 Cationic fluorinated polymer compositions and methods for treating hydrocarbon-bearing formations using the same
03/11/2010WO2010008661A3 Job monitoring methods and apparatus for logging-while-drilling equipment
03/11/2010WO2010005764A3 Location of bypassed hydrocarbons
03/11/2010WO2009158160A3 Method for estimating formation permeability using time lapse measurements
03/11/2010WO2009152014A3 Apparatus and system for geosteering and formation evaluation utilizing improved antennas
03/11/2010WO2009151954A3 Method of measuring multiphase flow
03/11/2010WO2009151851A3 Wellbore instrument module having magnetic clamp for use in cased wellbores
03/11/2010WO2009140044A3 Acoustic and fiber optic network for use in laterals downhole
03/11/2010US20100059283 Ambient-activated switch for downhole operations
03/11/2010US20100059279 Downhole window finder system
03/11/2010US20100059220 Apparatus for use when gathering parameters from a well flow and also a method of using same
03/11/2010US20100059219 Inspection tool, system, and method for downhole object detection, surveillance, and retrieval
03/11/2010US20100058854 Measuring properties of low permeability formations
03/10/2010EP2161407A2 Measuring borehole survey tool orientation using microgyros
03/10/2010EP2160503A2 Pressure interference testing for estimating hydraulic isolation
03/10/2010CN201420549Y Borehole compensated sonic logger phononic crystal magnet charger
03/10/2010CN201420548Y Pressure detection device used for transmitting commands to downhole in drilling operation
03/10/2010CN201420547Y Oil-field patrolling check instruments based on wifi mesh network
03/10/2010CN201420546Y Full-automatic differential pressure weighing type oil-gas metering device
03/10/2010CA2677456A1 Downhole window finder system
03/10/2010CA2676270A1 Measuring properties of low permeability formations
03/09/2010US7675029 Apparatus and a method for visualizing target objects in a fluid-carrying pipe
03/09/2010US7674624 Method for real-time determination of volume fractions of a production fluid in a hydrocarbon reservoir
03/09/2010US7673705 Compartmentalized MWD tool with isolated pressure compensator
03/09/2010US7673704 Variable positioning deep cutting rotary coring tool with expandable bit
03/09/2010US7673687 Cement compositions comprising crystalline organic materials and methods of using same
03/09/2010US7673683 Well tool having magnetically coupled position sensor
03/09/2010US7673682 Well casing-based geophysical sensor apparatus, system and method
03/09/2010US7673679 Protective barriers for small devices
03/09/2010US7673515 Vibration sensor
03/09/2010US7673507 Real time viscometer
03/09/2010CA2435785C Drilling signalling system
03/04/2010WO2010025315A2 System and method for measuring formation temperature and/or pressure using nuclear quadrupole resonance
03/04/2010WO2010025159A1 Monitoring system for well casing
03/04/2010WO2010024818A1 Bypass of damaged lines in subterranean wells
03/04/2010WO2010005902A3 Method to detect formation pore pressure from resistivity measurements ahead of the bit during drilling of a well
03/04/2010WO2009148871A3 Resistivity imager in non-conductive mud for lwd and wireline application
03/04/2010WO2009134669A3 Hydrocarbon recovery testing method
03/04/2010WO2009131877A3 Methods of inferring flow in wellbore
03/04/2010WO2009126888A3 Method for characterizing a geological formation traversed by a borehole
03/04/2010WO2009091422A3 Wireless perforating gun initiation
03/04/2010WO2009039468A9 Adaptive borehole corrections accounting for eccentricity for array laterlogs
03/04/2010WO2006051250A8 Remote actuation of a downhole tool
03/04/2010US20100051796 method for downhole, non-isotopic generation of ionised radiation and an apparatus for use when practising the method
03/04/2010US20100051347 In-situ formation strength testing with coring
03/04/2010US20100051292 Drill Bit With Weight And Torque Sensors
03/04/2010US20100051286 Optical sensing system for wellhead equipment
03/04/2010US20100051273 System, Method, and Apparatus for Breaking Fracture Fluids
03/04/2010US20100051266 Use of Micro-Electro-Mechanical Systems (MEMS) in Well Treatments
03/04/2010US20100051264 Method and system for monitoring downhole completion operations
03/04/2010US20100051263 System, Method and Apparatus for Breaking Fracturing Fluids
03/04/2010US20100050762 Methods and apparatus to perform pressure testing of geological formations
03/04/2010CA2734672A1 Monitoring system for well casing
03/03/2010EP2159369A2 Christmas tree with internally positioned flowmeter
03/03/2010CN201417316Y Direct current coupled high-frequency induction resistivity tool