Patent application number | Description | Published |
20110238392 | Systems and Methods For Reservoir Development and Management Optimization - Systems and methods which implement surrogate (e.g., approximation) models to systematically reduce the parameter space in an optimization problem are shown. In certain embodiments, rigorous (e.g., higher fidelity) models are implemented with respect to the reduced parameter space provided by use of surrogate models to efficiently and more rapidly arrive at an optimized solution. Accordingly, certain embodiments build surrogate models of an actual simulation, and systematically reduce the number of design parameters used in the actual simulation to solve optimization problems using the actual simulation. A multi-stage method that facilitates optimization of decisions related to development planning and reservoir management may be provided. Iterative processing may be implemented with respect to a multi-stage optimization method. There may be uncertainty in various parameters, such as in reservoir parameters, which is taken into account according to certain embodiments. | 09-29-2011 |
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 |
20130116927 | Inverting Geophysical Data for Geological Parameters or Lithology - Method for estimating porosity and water saturation or other geological parameters of a subsurface region when the lithology of the region is unknown, requiring only geophysical data from remote surveys. The geophysical data are inverted ( | 05-09-2013 |
20130179137 | Reducing the Dimensionality of the Joint Inversion Problem - Method for reducing a 3D joint inversion of at least two different types of geophysical data acquired by 3-D surveys ( | 07-11-2013 |
20130238246 | Orthogonal Source and Receiver Encoding - Method for performing simultaneous encoded-source inversion of geophysical data to estimate parameters of a physical property model ( | 09-12-2013 |
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 |