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Data Processing: Measuring, Calibrating, Or Testing > Measurement System In A Specific Environment > Earth Science > Well Logging Or Borehole Study > By Induction Or Resistivity Logging Tool By Induction Or Resistivity Logging ToolBy Induction Or Resistivity Logging Tool patent applications listed are from June 2005 to current and include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.09/28/06 - 20060217889 - Method for spatially interpreting electromagnetic data using multiple frequencies Method for removing effects of shallow resistivity structures in electromagnetic survey data to produce a low frequency resistivity anomaly map, or alternatively imaging resistivity structures at their correct depth levels. The method involves solving Maxwell's electromagnetic field equations by either forward modeling or inversion, and requires at least two survey ... 09/28/06 - 20060217888 - System and method for determining a more accurate resistivity model of a geological formation using time-lapse well logging data A system and a method for estimating a model of a geological formation are provided. The geological formation has a wellbore extending therethrough. The method includes obtaining a first resistivity log associated with the geological formation from a LWD sensor in the wellbore. The method further includes obtaining a second ... 08/31/06 - 20060195264 - Method and apparatus for estimating distance to or from a geological target while drilling or logging A system and method for estimating the distance between a borehole and a subsurface boundary of interest in a geophysical region. In one embodiment, available existing sensor data for the geophysical region is used to create a resistivity model of the region, with the model reflecting changes in resistivity across ... 08/03/06 - 20060173624 - Method for real-time well-site interpretation of array resistivity log data in vertical and deviated wells A method and apparatus for real-time well-site interpretation of array resistivity log data. An inversion of data with different depths of investigation is carried out after data shoulder-bed correction. The formation model used by inversion is constructed with the layer boundaries obtained from an imaging tool or other log measurements. ... 06/08/06 - 20060122778 - Downhole signal source A signaling apparatus comprises a magnet and a shield moveable relative to the magnet. The shield is moveable relative to the magnet between a first position in which the magnet is relatively exposed and a second position in which the magnet is relatively shielded. The apparatus can include a synchronization ... 11/17/05 - 20050256645 - Determination of fracture orientation and length using multi-component and multi-array induction data Measurements made by multiarray and multicomponent induction resistivity measurements in a borehole are used for determining the orientation and length of fractures in an earth formation when the fractures have a fluid with a resistivity different from that of the earth formation. The apparatus and method may also be used ... 11/17/05 - 20050256644 - System and method for correcting induction logging device measurements by alternately estimating geometry and conductivity parameters A method and related system for correcting measurements obtained from an induction logging device. In one embodiment, the method comprises: receiving conductivity measurements from a multi-array induction tool; constructing a measurement pattern vector from the conductivity measurements; determining one or more geometry parameters associated with an approximation of the measurement ... 06/30/05 - 20050143920 - Method for determining sonde error for an induction or propagation tool with transverse or triaxial arrays A method for determining a sonde error in a logging tool comprising a transverse array includes obtaining a first measurement using the transverse array while the logging tool is at a first height from ground in a selected orientation; obtaining a second measurement using the transverse array while the logging ... ### FreshPatents.com Support |