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)
07/2003
07/31/2003US20030142586 Smart self-calibrating acoustic telemetry system
07/31/2003US20030141988 Logging sondes for use in boreholes
07/31/2003US20030141872 Methods for sealing openings in tubulars
07/31/2003US20030141110 Probing device with microwave transmission
07/31/2003US20030141078 System and method for autonomously performing a downhole well operation
07/31/2003US20030141075 Apparatus and method for obtaining proper space-out in a well
07/31/2003US20030141072 Choke valve with pressure transmitters
07/31/2003US20030141055 Drilling formation tester, apparatus and methods of testing and monitoring status of tester
07/31/2003US20030140711 Method and apparatus for flow measurement
07/31/2003US20030140689 Method for analysing a completion system
07/30/2003EP1331359A1 Probing device with microwave transmission
07/30/2003EP0910725B1 Wellbores utilizing fiber optic-based sensors and operating devices
07/30/2003EP0901625B1 Process and devices for characterising ground water measurement points by distinguishing ground water from subterranean water accumulation
07/30/2003CN2563308Y Single packer pipe string of detection oil/water well channelling
07/30/2003CN1116498C Device, probe and method for measuring parameter of underground rock
07/29/2003US6600321 Apparatus and method for wellbore resistivity determination and imaging using capacitive coupling
07/29/2003US6598687 Three dimensional steerable system
07/29/2003US6598686 Method and system for enhanced access to a subterranean zone
07/24/2003WO2003060283A2 Sonde housing and method of manufacture
07/24/2003WO2002057589A3 Internal power source for downhole detection system
07/24/2003US20030139884 High resolution dispersion estimation in acoustic well logging
07/24/2003US20030137899 Method for estimating the position of a drill
07/24/2003US20030137430 Electromagnetic power and communication link particularly adapted for drill collar mounted sensor systems
07/24/2003US20030137429 Downhole tubular with openings for signal passage
07/24/2003US20030137302 Inductively-coupled system for receiving a run-in tool
07/24/2003US20030136583 Establishing positions of locating field detectors and path mapping in underground boring tool applications
07/24/2003US20030136185 Multiphase flow measurement system
07/24/2003CA2416930A1 High resolution dispersion estimation in acoustic well logging
07/23/2003CN2561929Y Continuous test sealer
07/23/2003CN2561928Y Sliding weighting device for well logging
07/23/2003CN2561927Y Elevator
07/23/2003CN1432098A Tracer release method for monitoring fluid flow in well
07/23/2003CN1431384A Device for detecting temp in downhole
07/22/2003US6597633 Method for electrolinetic downhole logging
07/22/2003US6597178 Sensor for detecting the magnetic field in the area of downhole casing
07/22/2003US6597175 Electromagnetic detector apparatus and method for oil or gas well, and circuit-bearing displaceable object to be detected therein
07/17/2003WO2003058545A1 A coiled tubing inspection system using image pattern recognition
07/17/2003WO2003058282A1 Monitoring of a reservoir
07/17/2003WO2003058028A1 Radiating complex for oil and gas wells
07/17/2003WO2003036040A3 In situ thermal processing of a hydrocarbon containing formation using a natural distributed combustor
07/17/2003US20030135446 Contingent convertible financial instruments
07/17/2003US20030135436 Methods and systems for offering and servicing financial instruments
07/17/2003US20030134426 Hydrogen sulphide detection method and apparatus
07/17/2003US20030133805 Pump-off control interrupter
07/17/2003US20030132007 Compression set packer
07/17/2003US20030131992 Sonde housing and method of manufacture
07/17/2003US20030131991 Tracer release method for monitoring fluid flow in a well
07/17/2003US20030131990 Wellbores utilizing fiber optic-based sensors and operating devices
07/17/2003CA2471374A1 A coiled tubing inspection system using image pattern recognition
07/16/2003EP1327054A1 Method for determining pressure profiles in wellbores, flowlines and pipelines, and use of such method
07/16/2003EP1076759B1 Method for installing a sensor in connection with plugging a well
07/16/2003CN2560754Y Double measuring injection well down-hole flow
07/16/2003CN1114751C Method and apparatus for acquiring data in oil well
07/16/2003CN1114748C Drill for drilling a hole in stratigraphic
07/15/2003US6593745 Tracking system using locating signal measurements to regionally confine a boring tool relative to a measurement location
07/15/2003US6592332 Pump-off control interrupter
07/15/2003US6591700 Apparatus for passive removal of subsurface contaminants and mass flow measurement
07/15/2003CA2307444C Compensation of errors in lwd density measurements
07/14/2003CA2415921A1 Method and apparatus for full offset resistivity imaging for use in boreholes
07/10/2003WO2003056498A1 Method of load and failure prediction of downhole liners and wellbores
07/10/2003WO2003036032A3 In situ thermal processing of a hydrocarbon containing formation to produce heated fluids
07/10/2003US20030127232 Optical position sensing for well control tools
07/10/2003US20030127223 Technique for sensing flow related parameters when using an electric submersible pumping system to produce a desired fluid
07/10/2003US20030126921 Fiber optic monitoring of flow inside and outside a tube downhole
07/09/2003EP1226335B1 Asphaltenes monitoring and control system
07/09/2003EP0853754B1 Method and measuring device for measuring hydrostatic pressure, in particular that of ground water
07/09/2003CN2559791Y Lead pattern hole gauge
07/09/2003CN2559772Y Down hole safety protection short joint of drill pipe transmission well-logging
07/08/2003US6588518 Drilling method and measurement-while-drilling apparatus and shock tool
07/08/2003US6588516 Method and apparatus for directional boring under mixed conditions
07/08/2003US6588515 Drill bit for directional drilling
07/08/2003US6588505 Methods and associated apparatus for downhole data retrieval, monitoring and tool actuation
07/08/2003US6588266 Monitoring of downhole parameters and tools utilizing fiber optics
07/08/2003US6588116 Method for drilling under rivers and other obstacles
07/03/2003WO2003036035A3 In situ upgrading of coal
07/03/2003WO2003036031A3 Seismic monitoring of in situ conversion in a hydrocarbon containing formation
07/03/2003WO2003035811A9 Remediation of a hydrocarbon containing formation
07/03/2003US20030122067 Formation evaluation through azimuthal tool-path identification
07/03/2003US20030121657 Method for estimating a position in a wellbore
07/03/2003US20030121656 Liquid level detection for artificial lift system control
07/02/2003EP1198657A4 Core orientation
07/02/2003CN1427137A Method for predetermining subfloor temp
07/01/2003US6586900 Method for boosting the output voltage of a variable frequency drive
07/01/2003US6585051 Hydraulically operated fluid metering apparatus for use in a subterranean well, and associated methods
07/01/2003US6585044 Method, system and tool for reservoir evaluation and well testing during drilling operations
07/01/2003US6585042 Cementing plug location system
07/01/2003US6585041 Virtual sensors to provide expanded downhole instrumentation for electrical submersible pumps (ESPs)
06/2003
06/28/2003CA2411213A1 Improved formation evaluation through azimuthal tool-path identification
06/26/2003US20030120427 Graphical method for designing the trajectory of a well bore
06/26/2003US20030118230 Coiled tubing inspection system using image pattern recognition
06/26/2003US20030117133 Non-invasive detectors for wells
06/26/2003US20030116321 Long duration fuel cell system
06/26/2003US20030116315 In situ thermal processing of a relatively permeable formation
06/25/2003EP1320659A1 Method and system for wireless communications for downhole applications
06/25/2003EP0877960B1 Sonic data logging system
06/25/2003CN2557696Y Techonlogical pipe column for well six-parameter synchronous automatic control layered survey
06/24/2003US6584406 Downhole process control method utilizing seismic communication
06/24/2003US6582145 Pressurized connector for high pressure applications
06/24/2003US6581688 Method of packing extended reach horizontal wells
06/24/2003US6581686 Method of and device for tracing hydraulic fractures, stimulations, cement jobs, etc. in oil and gas wells
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