| Patent application number | Description | Published |
|---|
| 20090005994 | Time Lapse Analysis with Electromagnetic Data - Method for determining time-dependent changes [ | 01-01-2009 |
| 20090096457 | Method for determining earth vertical electrical anisotropy in marine electromagnetic surveys - A method is disclosed for determining earth vertical electrical anisotropy from offshore electromagnetic survey measurements. The method requires both online and offline data, which includes at least one electromagnetic field component sensitive at least predominantly to vertical resistivity and another component sensitive at least predominantly to horizontal resistivity. Using a horizontal electric dipole source, online E | 04-16-2009 |
| 20090121720 | Method for controlled source electromagnetic reconnaissance surveying - Method for conducting an efficient and interpretable controlled-source electromagnetic reconnaissance survey for buried hydrocarbons. While a part of the survey area is being set up for measurement and data are being acquired, data from a nearby part of the survey area, surveyed just previously, are being rapidly processed and analyzed ( | 05-14-2009 |
| 20100065266 | Method for Controlled Source Electromagnetic Reconnaissance Surveying - Method for conducting an efficient and interpretable controlled-source electromagnetic reconnaissance survey for buried hydrocarbons. While a part of the survey area is being set up for measurement and data are being acquired, data from a nearby part of the survey area, surveyed just previously, are being rapidly processed and analyzed. If the analysis shows resistive anomalies of interest in a portion of a survey area, a fine-grid survey is quickly designed for that portion, and that survey is conducted next before moving source and receivers to a more distant part of the survey area. | 03-18-2010 |
| 20100233955 | METHOD FOR ELECTROMAGNETIC AIR-WAVE SUPPRESSION BY ACTIVE CANCELLATION AND SHIELDING - Method for reducing air wave and/or magnetotelluric noise in controlled source electromagnetic surveying by either shielding the source ( | 09-16-2010 |
| 20100332198 | Method For Obtaining Resistivity From Controlled Source Electromagnetic Data - Method for generating a three-dimensional resistivity data volume for a subsurface region from an initial resistivity model and measured electromagnetic field data from an electromagnetic survey of the region, where the initial resistivity model is preferably obtained by performing multiple ID inversions of the measured data [ | 12-30-2010 |
| 20110108283 | Method For Remote Identification And Characterization of Hydrocarbon Source Rocks Using Seismic and Electromagnetic Geophysical Data - Method for assessing hydrocarbon source rock potential of a subsurface region without well log information. The method uses surface electromagnetic ( | 05-12-2011 |
| 20110166840 | Systems and Methods For Subsurface Electromagnetic Mapping - Systems and methods which provide electromagnetic subsurface mapping to derive information with respect to subsurface features whose sizes are near to or below the resolution of electromagnetic data characterizing the subsurface are shown. Embodiments operate to identify a region of interest ( | 07-07-2011 |
