Patent application number | Description | Published |
20090306900 | Rapid Inversion of Electromagnetic Reconnaisance Survey Data - Method for rapid inversion of data from a controlled-source electromagnetic survey of a subterranean region. Selected ( | 12-10-2009 |
20100018718 | ITERATIVE INVERSION OF DATA FROM SIMULTANEOUS GEOPHYSICAL SOURCES - Method for reducing the time needed to perform geophysical inversion by using simultaneous encoded sources in the simulation steps of the inversion process. The geophysical survey data are prepared by encoding ( | 01-28-2010 |
20100018719 | Inversion of CSEM Data With Measurement System Signature Suppression - A method for suppressing measurement system signature, or artifacts, that arise when controlled source electromagnetic survey data are inverted to obtain a resistivity image of a subsurface region. The method involves identifying regions ( | 01-28-2010 |
20100176791 | Method For Correcting The Phase of Electromagnetic Data - Method for identifying, determining and correcting source-related phase errors in data from a controlled source electromagnetic survey by using data from ordinary survey receivers, i.e. without benefit of source monitoring data. Abrupt anomalies indicating source malfunctions are identified ( | 07-15-2010 |
20110155389 | System and Method For Providing A Physical Property Model - There is provided a system and method for creating a physical property model representative of a physical property of a region. An exemplary method comprises transforming information from a model domain that represents the physical property model into simulated data in a data domain, the data domain comprising simulated data and measured data representative of a plurality of observations of the region. The exemplary method also comprises determining an areal misfit between the simulated data and the measured data representative of the plurality of observations of the region. The exemplary method additionally comprises performing an evaluation of the areal misfit based on known criteria. The exemplary method comprises adjusting data in the data domain or information in the model domain corresponding to a region in the model domain based on the evaluation of the areal misfit. | 06-30-2011 |
20110193554 | Method For Determining Orientation of Elecromagnetic Receivers - Method for determining receiver orientation angles in a controlled source electromagnetic survey, by analyzing the survey data. For a given survey receiver, two data subsets are selected. ( | 08-11-2011 |
20110255371 | Hydrocarbon Detection With Passive Seismic Data - Method for using seismic data from earthquakes to address the low frequency lacuna problem in traditional hydrocarbon exploration methods. Seismometers with frequency response Select Receivers of Desired Frequency Ranges and Design Survey Seismometer Configuration down to about | 10-20-2011 |
20110264421 | Method For Geophysical Imaging - Method for transforming electromagnetic survey data acquired from a subsurface region to a subsurface resistivity model indicative of hydrocarbon accumulations or lack thereof. In one embodiment, data are selected for two or more non-zero frequencies ( | 10-27-2011 |
20120109612 | Iterative Inversion of Data From Simultaneous Geophysical Sources - Method for reducing the time needed to perform geophysical inversion by using simultaneous encoded sources in the simulation steps of the inversion process. The geophysical survey data are prepared by encoding ( | 05-03-2012 |
20140095131 | Domain Freezing in Joint Inversion - Method for estimating geological properties in a subsurface region using multiple types of geophysical data ( | 04-03-2014 |
20140136170 | Adaptive Weighting of Geophysical Data Types in Joint Inversion - Method for adaptive weighting of geophysical data types in iterative joint inversion to speed convergence and aid escape from local minima of the penalty (objective) function. Two or more geophysical data sets ( | 05-15-2014 |
20140180593 | Joint Inversion with Unknown Lithology - Method for joint inversion of geophysical data to obtain 3-D models of geological parameters for subsurface regions of unknown lithology. Two or more data sets of independent geophysical data types are obtained, e.g. seismic and electromagnetic. Then they are jointly inverted, using structural coupling, to infer geophysical parameter volumes, e.g. acoustic velocity and resistivity. Regions of common lithology are next identified based on similar combinations of geophysical parameters. Then a joint inversion of the multiple data types is performed in which rock physics relations vary spatially in accordance with the now-known lithology, and 3-D models of geological properties such as shale content and fracture density are inferred. The computational grid for the last inversion may be defined by the lithology regions, resulting in average geological properties over such regions, which may then be perturbed to determine uncertainty in lithologic boundaries. | 06-26-2014 |
20140257780 | Inversion of Geophysical Data on Computer System Having Parallel Processors - A method for efficient use of a computing system of parallel processors to perform inversion of geophysical data, or joint inversion of two or more data types. The method includes assigning at least one control processor to control sequence of operations and reduce load imbalance, assigning a group of one or more processors dedicated to updating one or more model parameters, and assigning another group of one or more processors dedicated to forward modeling simulated data. | 09-11-2014 |
20140307928 | Seismic Velocity Model Updating and Imaging with Elastic Wave Imaging - Method for building a seismic imaging velocity model, particularly at the boundary of a geo-body, and to perform imaging, by taking into account the elastic reflection and scattering information in the seismic data. More illumination of the base and flanks (or in general, the boundary) of the geo-body is provided from (a) inside of the geo-body ( | 10-16-2014 |