| Patents for E21B 47 - Survey of boreholes or wells (31,352) |
|---|
| 05/25/2005 | EP1086291A4 Directional drilling system and apparatus |
| 05/25/2005 | DE102004035772A1 System und Verfahren zum Messen von Bohrlochparametern während des Bohrens System and method for measuring downhole parameters during drilling |
| 05/25/2005 | CN2702053Y Cell box for down-hole instrument |
| 05/25/2005 | CN1619098A Downhole tool sensor system and method |
| 05/25/2005 | CN1203325C Method and system for performing operations and for improving production in wells |
| 05/24/2005 | US6898150 Hydraulically balanced reciprocating pulser valve for mud pulse telemetry |
| 05/24/2005 | US6898149 Reprogrammable downhole telemetry and control system |
| 05/24/2005 | US6896074 System and method for installation and use of devices in microboreholes |
| 05/24/2005 | US6896064 Compression set packer and method of use |
| 05/24/2005 | US6896056 System and methods for detecting casing collars |
| 05/24/2005 | US6896055 Method and apparatus for controlling wellbore equipment |
| 05/24/2005 | CA2342611C Seismic sensing and acoustic logging systems using optical fiber, transducers and sensors |
| 05/24/2005 | CA2167676C Method for controlling the head of a drilling or core-drilling device and apparatus for carrying out this method |
| 05/24/2005 | CA2153693C Method for determining borehole direction |
| 05/19/2005 | WO2005045371A1 Detection of water breakthrough |
| 05/19/2005 | WO2005045185A1 Gravel pack completion with fluid loss control and fiber optic wet connect |
| 05/19/2005 | WO2005045177A1 Make-up control system for tubulars |
| 05/19/2005 | WO2005045174A2 Gravel pack completion with fiber optic monitoring |
| 05/19/2005 | US20050107079 Wireless telemetry systems and methods for real time transmission of electromagnetic signals through a lossy environment |
| 05/19/2005 | US20050106738 Method for storing and transporting crude oil |
| 05/19/2005 | US20050104176 High temperature electronic devices |
| 05/19/2005 | US20050103528 Horizontal directional drilling in wells |
| 05/19/2005 | US20050103527 Dual wall drill string assembly |
| 05/19/2005 | US20050103491 Activity data capture system for a well service vehicle |
| 05/19/2005 | US20050103134 Locking clips for retaining parallel elongated members |
| 05/19/2005 | US20050103123 Tubular monitor systems and methods |
| 05/18/2005 | CN2700559Y vibration preventing and damping natural gamma positioning instrument |
| 05/18/2005 | CN2700558Y Down-hole mechanical parameter measuring instrument for directional drilling |
| 05/18/2005 | CN2700557Y Vibration damper for down-hole electronic pressure gauge |
| 05/18/2005 | CN2700556Y Wireline steering tool for horizontal well with ultra-short radius |
| 05/18/2005 | CN2700555Y Wet joint of measurement while drilling instrument |
| 05/18/2005 | CN2700554Y Instrument for automatically monitoring liquid level and casing pressure of pumping well |
| 05/18/2005 | CN2700553Y Single well metering device |
| 05/18/2005 | CN2700552Y Electronic pressure and flow detection device |
| 05/17/2005 | US6893874 Method for storing and transporting crude oil |
| 05/12/2005 | WO2005042919A1 Well control and monitoring system using high temperature electronics |
| 05/12/2005 | WO2004097160B1 System and method using a continuously variable transmission to control one or more system components |
| 05/12/2005 | WO2004010163A8 Marking of pipe joints |
| 05/12/2005 | US20050099618 Method and apparatus for a downhole spectrometer based on electronically tunable optical filters |
| 05/12/2005 | US20050098356 Auto-extending/retracting electrically isolated conductors in a segmented drill string |
| 05/12/2005 | US20050098350 Three dimensional steering system and method for steering bit to drill borehole |
| 05/12/2005 | US20050098318 High-temperature circuits |
| 05/12/2005 | US20050098312 Method for measuring formation properties with a time-limited formation test |
| 05/12/2005 | US20050097911 [downhole tools with a stirling cooler system] |
| 05/12/2005 | CA2543409A1 Well control and monitoring system using high temperature electronics |
| 05/11/2005 | CN2698978Y Real time monitoring and controlling device for under balance drilling |
| 05/10/2005 | US6891777 Subsurface borehole evaluation and downhole tool position determination methods |
| 05/10/2005 | US6891606 Real-time on-line sensing and control of mineral scale deposition from formation fluids |
| 05/10/2005 | US6891481 Resonant acoustic transmitter apparatus and method for signal transmission |
| 05/10/2005 | US6891477 Apparatus and methods for remote monitoring of flow conduits |
| 05/10/2005 | US6889781 Horizontal directional drilling in wells |
| 05/06/2005 | WO2005040883A1 Telecommunication optical cable for gas pipeline application having built-in leakage detecting device |
| 05/06/2005 | WO2004113676A3 A sensor system and method of communicating data between a downhole device on a remote location |
| 05/06/2005 | CA2543334A1 Telecommunication optical cable for gas pipeline application having built-in leakage detecting device |
| 05/05/2005 | US20050096848 Automatic control system and method for bottom hole pressure in the underbalance drilling |
| 05/05/2005 | US20050096846 Method and apparatus for controlling wellbore equipment |
| 05/05/2005 | US20050094129 Combined Bragg grating wavelength interrogator and brillouin backscattering measuring instrument |
| 05/05/2005 | US20050093201 Singular molded and co-molded electronic's packaging pre-forms |
| 05/05/2005 | US20050092499 Improved drill string transmission line |
| 05/05/2005 | US20050092483 In situ thermal processing of a hydrocarbon containing formation using a natural distributed combustor |
| 05/04/2005 | EP1527253A1 Inflation tool with real-time temperature and pressure probes |
| 05/04/2005 | EP1527234A1 Method and device for soil analysis |
| 05/04/2005 | CN1611742A Under balance drilling bottom pressure automatic control system and method |
| 05/03/2005 | US6886644 Apparatus and method for horizontal drilling |
| 05/03/2005 | US6886632 Estimating formation properties in inter-well regions by monitoring saturation and salinity front arrivals |
| 05/03/2005 | US6886631 Inflation tool with real-time temperature and pressure probes |
| 05/03/2005 | US6886406 Downhole deposition monitoring system |
| 05/03/2005 | US6886391 Redundant metal-metal seal |
| 05/03/2005 | CA2329471C Decentralizing, centralizing, locating and orienting subsystems and methods for subterranean multilateral well drilling and completion |
| 04/30/2005 | CA2800953A1 Optical connector assembly |
| 04/28/2005 | WO2004081335A3 A motor pulse controller |
| 04/28/2005 | US20050090985 Downhole tool controller using autocorrelation of command sequences |
| 04/28/2005 | US20050089425 Beam pump dynamic load monitoring and methods |
| 04/28/2005 | US20050088316 Well control and monitoring system using high temperature electronics |
| 04/28/2005 | US20050087368 Downhole telemetry system and method |
| 04/28/2005 | US20050087367 System and method for interpreting drilling data |
| 04/28/2005 | US20050087344 System and Method to Control Multiple Tools Through One Control Line |
| 04/28/2005 | US20050087339 System and method for processing signals in a well |
| 04/28/2005 | US20050087009 Method for measuring formation properties with a time-limited formation test |
| 04/27/2005 | EP1287230A4 Method and system for performing operations and for improving production in wells |
| 04/27/2005 | EP1252415B1 Method of assessing positional uncertainty in drilling a well |
| 04/27/2005 | EP1221059B1 Obtaining an image of an underground formation |
| 04/27/2005 | CN2695636Y Well dynamic monitoring signal transmitter |
| 04/27/2005 | CN2695635Y Anti-overflow monitoring equipment for petroleum drilling work |
| 04/27/2005 | CN1609562A Depth measuring instrument |
| 04/27/2005 | CN1609410A Redundant telemetry system |
| 04/27/2005 | CN1199001C Method and equipment for obtaining data from underground rock |
| 04/26/2005 | US6885918 Seismic monitoring and control method |
| 04/26/2005 | US6885308 Logging while tripping with a modified tubular |
| 04/26/2005 | US6885188 Detector assemblies and methods |
| 04/26/2005 | US6883606 Differential pressure controller |
| 04/26/2005 | US6883240 Borehole surveying |
| 04/26/2005 | CA2330067C Scale prediction probe |
| 04/26/2005 | CA2145283C Method for calculating sedimentary rock pore pressure |
| 04/21/2005 | WO2005035944A1 System and method for determining a flow profile in a deviated injection well |
| 04/21/2005 | WO2005035943A1 System and method for determining flow rates in a well |
| 04/21/2005 | US20050083060 Boring tool tracking/guiding system and method with unconstrained target location geometry |
| 04/21/2005 | US20050082822 Erosion-indicating safety fitting |
| 04/21/2005 | US20050082054 Gel release device |
| 04/20/2005 | EP1523607A1 Subterranean well pressure and temperature measurement |