Patent application number | Description | Published |
20100004864 | WELL LOG CORRELATION - A method of automatically correlating well logs includes selecting well loops from the well logs and creating a set of possible marker positions for each well log in each well loop. From the possible marker positions, alternate marker sets are iteratively selected. A well tie error on each loop is calculated for each selected marker set, summed over all loops and minimized. | 01-07-2010 |
20100010745 | Well Log Normalization - A method of normalizing well log data relating to geology of a subsurface region includes identifying a pair of markers defining a zone on each well log, determining a statistic for a property within the zone for each well log, fitting a smooth function to the statistics to create a first-iteration trend surface, determining, for each statistic, a deviation from the trend surface and eliminating those statistics that deviate from the trend surface by greater than a threshold value, fitting a smooth function to the remaining statistics to create a second-iteration trend surface, normalizing the property for each well log based on the second-iteration trend surface, and analyzing the normalized properties to determine the geology of the subsurface region. | 01-14-2010 |
20100010796 | LOCATION OF BYPASSED HYDROCARBONS - A method of locating resources in a reservoir that includes at least one injection well and at least one production well includes mapping a modeled permeability characteristic of structures making up the reservoir, computing, based on the modeled permeability characteristic, an indicator of flow velocity for streamlines from each production well, computing, based on the modeled permeability characteristic, an indicator of flow velocity for streamlines from each injection well, and combining the indicators of flow velocity from each production and injection well to characterize a sweep efficiency of the reservoir system. | 01-14-2010 |
20120290277 | SYSTEM AND METHOD FOR CHARACTERIZING RESERVOIR FORMATION EVALUATION UNCERTAINTY - A method is provided that utilizes independent data spatial bootstrap to quantitatively derive P10, P50 and P90 reservoir property logs and zonal averages. The method utilizes at least a “baseline” dataset that is assumed to be correct, and determines the distribution of possible input parameter values that provide the most optimal solution to fit the log analysis to the core data. In one embodiment, independent data spatial bootstrap method can be applied to determine the uncertainty of porosity and saturation. | 11-15-2012 |
20130124092 | METHOD OF USING SPATIALLY INDEPENDENT SUBSETS OF DATA TO CALCULATE VERTICAL TREND CURVE UNCERTAINTY OF SPATIALLY CORRELATED RESERVOIR DATA - A method, implemented on a computer, for calculating vertical trend curve uncertainty of spatially correlated reservoir data. The method includes inputting, into the computer, a sample reservoir data comprising correlated data; applying, using the computer, a variogram to the sample reservoir data to select a plurality of subsets of data, the subsets of data being substantially less correlated than the sample reservoir data; and applying, using the computer, a bootstrap process on each of the plurality of subsets of data to obtain a plurality of bootstrap data sets from each of the plurality of subsets of data. The method further includes calculating vertical trend curves for each of the obtained plurality of bootstrap data sets, ranking the vertical trend curves by using a selected statistical parameter to obtain ranked vertical trend curves, and characterizing the uncertainty based on the ranked vertical trend curves. | 05-16-2013 |
20130124097 | SYSTEM AND METHOD OF USING SPATIALLY INDEPENDENT SUBSETS OF DATA TO CALCULATE PROPERTY DISTRIBUTION UNCERTAINTY OF SPATIALLY CORRELATED RESERVOIR DATA - A system and a method, implemented on a computer, for calculating property distribution uncertainty of spatially correlated petrophysical data. The method includes inputting, into the computer, a sample petrophysical data comprising correlated data; applying, using the computer, a variogram to the sample petrophysical data to select a plurality of subsets of data, the subsets of data being substantially less correlated than the sample petrophysical data; and applying, using the computer, a bootstrap process on each of the plurality of subsets of data to obtain a plurality of bootstrap data sets from each of the plurality of subsets of data. The method further includes calculating data distributions for each of the obtained plurality of bootstrap data sets; ranking the data distributions by using a selected statistical parameter to obtain ranked data distributions; and characterizing the uncertainty based on the ranked data distributions. | 05-16-2013 |
20130124167 | METHOD FOR USING MULTI-GAUSSIAN MAXIMUM-LIKELIHOOD CLUSTERING AND LIMITED CORE POROSITY DATA IN A CLOUD TRANSFORM GEOSTATISTICAL METHOD - A method of modeling porosity and permeability in a subsurface region includes modeling a sparse data set as a mixture of Gaussian distributions, each with a cluster center in permeability-porosity space using permeability-porosity covariance. A number and location of cluster centers as well as covariances and probabilities of each cluster are derived using an interative maximum-likelihood algorithm. | 05-16-2013 |
20130282286 | SYSTEM AND METHOD FOR CALIBRATING PERMEABILITY FOR USE IN RESERVOIR MODELING - A computer system and a computer-implemented method for calibrating a reservoir characteristic including a permeability of a rock formation. The method includes inputting a measured product KH of a measured permeability K and a flowing zone thickness H over a plurality of corresponding zones in one or more wells and inputting porosity logs for each measured product KH in each of the plurality of zones obtained from the one or more wells. The method further includes reading a porosity-permeability cloud of data points; calculating, for each zone, a predicted product KH from the porosity log using the porosity-permeability cloud of data points; determining one or more weighting coefficients between the predicted KH and the measured KH corresponding to each zone; and calibrating the measured permeability corresponding to each zone using the one or more weighting coefficients. | 10-24-2013 |
20130317779 | SYSTEM AND METHOD OF USING SPATIALLY INDEPENDENT SUBSETS OF DATA TO DETERMINE THE UNCERTAINTY OF SOFT-DATA DEBIASING OF PROPERTY DISTRIBUTIONS FOR SPATIALLY CORRELATED RESERVOIR DATA - A system and method, implemented on a computer, for determining the uncertainty of soft-data debiasing of property distributions of spatially correlated reservoir data are provided. The method includes inputting, into the computer, soft-data at a plurality of spatial locations on a grid and hard-data at a plurality of location along well paths that intersect the grid. Each location of the hard-data is collocated with soft-data values of one or more types. The method further includes calculating, using the computer, a variogram of the hard-data and creating subsets of independent hard-data using the variogram and the soft-data values that are collocated with each of the hard-data location; applying, using the computer, a bootstrap process on each of the plurality of subsets of independent hard-data to obtain a plurality of bootstrap data sets from each of the plurality of subsets of independent hard-data; calculating soft-data debiased histograms for each of the obtained plurality of bootstrap data sets using a binary decision tree and the collocated soft-data; and characterizing the uncertainty of the soft-data debiased histograms. | 11-28-2013 |
20130325350 | SYSTEM AND METHOD FOR FACIES CLASSIFICATION - A method of automatically interpreting well log data indicative of physical attributes of a portion of a subterranean formation which include some portion of samples with known facies classification to be used as training data, dividing the training data into two subsets, a calibration set and a cross-validation set, using an automated supervised learning facies identification method to determine a preliminary identification of facies in the subterranean formation based on the calibration set, calculating a confusion matrix for the supervised learning facies identification method by comparing predicted and observed facies for the cross-validation set, calculating a facies transition matrix characterizing changes between contiguous facies, and using the preliminary identification, the facies transition matrix, and the confusion matrix, iteratively calculating updated facies identifications. | 12-05-2013 |
20140035912 | HYBRID METHOD OF COMBINING MULTIPOINT STATISTIC AND OBJECT-BASED METHODS FOR CREATING RESERVOIR PROPERTY MODELS - A computer system and a hybrid method for combining multipoint statistic and object-based methods include creating a multi-point statistics (MPS) model using a MPS method that satisfies conditioning data and constraints in which the multi-point statistics are derived from a training image created using training-image generation parameters; generating one or more object-shape templates and depositional or structural coordinates of each facies type using the generation parameters; positioning the one or more generated templates within the MPS model such that the one or more generated templates maximally correlate to the MPS model; assigning to each of the one or more positioned templates a unique event; providing depositional or structural coordinates to each cell associated with a given event number; and modeling properties using the coordinates to capture geological trends within each template. | 02-06-2014 |
20140037197 | METHOD FOR EDITING A MULTI-POINT FACIES SIMULATION - A computer system and a hybrid method for combining multipoint statistic and object-based methods include creating a multi-point statistics (MPS) model using a MPS method that satisfies conditioning data and constraints, the multi-point statistics being derived from a training image created using training-image generation parameters; generating one or more object-shape templates and depositional coordinates of each facies type using the parameters; positioning the templates within the MPS model such that the templates maximally correlate to the MPS model; assigning to each of the positioned templates a unique event; determining which cells are available for editing; and assigning the cells that are available for editing to facies if the cells are contained by a facies template positioned within the MPS model at its optimally correlating location. | 02-06-2014 |
Patent application number | Description | Published |
20100175741 | Dual Axis Sun-Tracking Solar Panel Array - Apparatuses are disclosed for adjusting the position of the photovoltaic panels. The adjustments of the photovoltaic panels can be performed in two axes: pivot and tilt. The photovoltaic panels can be pivotably mounted along the longitudinal axis of rotatable frames. The substantially parallel photovoltaic panels in a frame can be simultaneously pivoted by a pivoting drive mechanism attached to the frame. Multiple tiltable frames can be arranged in parallel to each other, thus creating a 2-D matrix of the photovoltaic panels. The tiltable frames can be supported by an elevated structure permitting the unobstructed rotation of both the frames and the panels inside the frames. A controller can synchronize the tilt and pivot, such that the combined rotation of the photovoltaic panels results in the photovoltaic panels of the entire array being substantially perpendicular to the incident solar radiation. | 07-15-2010 |
20100183443 | INTEGRATED WIND TURBINE AND SOLAR ENERGY COLLECTOR - A system for collecting wind and solar energy including a tower, a wind turbine, and a solar energy collector. The solar energy collector has a vertically oriented frame attached to the wind turbine. The solar energy collector is rotatably coupled to the bottom end of the tower to enable the vertically oriented frame and the wind turbine to rotate together about the tower axis. The vertically oriented frame has one or more photovoltaic panels for collecting solar energy. The solar energy collector can act as a wind foil to rotate the attached wind turbine in the direction of the wind. Alternatively, a motor can rotate the solar energy collector and wind turbine. | 07-22-2010 |
20100206018 | Lock Device for Photovoltaic Panels - A photovoltaic panel locking system is disclosed. The locking system includes a unitary locking bracket made from a hardened steel material having a horizontal portion and a vertical portion extending from the horizontal portion, wherein the horizontal portion of the locking bracket is configured to encapsulate a portion of the top of the frame of a photovoltaic panel and wherein the vertical portion is configured to flank the vertical portion of the photovoltaic panel frame, and wherein the vertical portion of the bracket includes a bracket aperture. The locking system also includes a lock configured to fit through both the bracket aperture and an aligned aperture formed in the vertical portion of the frame of the photovoltaic panel securing the locking bracket against the photovoltaic panel. | 08-19-2010 |
20100206303 | Solar Concentrator Truss Assemblies - Solar concentrator truss assemblies and arrays of solar concentrator truss assemblies are disclosed. The solar concentrator truss assembly has a V-shaped frame joined with a solar panel to form a triangulated truss. The solar concentrator truss assembly is lightweight and strong, and does not require extensive additional structural support for installation. The array of solar concentrator truss assemblies is motion controlled by a computer to move the array into preferable positions with regards to sunlight. | 08-19-2010 |
20100211487 | GREEN POWER PAYMENT DEVICE - A server computer comprising a processor and a computer readable medium coupled to the processor, wherein the computer readable medium comprises code executable by the processor. The computer readable medium comprises code for receiving transaction information associated with a purchase transaction of a sponsored product between a consumer and a merchant using a payment device, code for determining an energy credit based on the transaction information associated with the purchase transaction of the sponsored product, code for sending a first notification to a sponsor associated with the sponsored product. The first notification comprises a portion of the transaction information. The sponsor makes a payment associated with the determined energy credit to a renewable energy producer in response to receiving the first notification. The computer readable medium further comprises code for sending a second notification with the determined energy credit to an energy provider. The energy provider credits the energy service account of the consumer with the determined energy credit in response to receiving the second notification. | 08-19-2010 |
20100263660 | Solar Power Production and Metering - Systems and methods for positioning photovoltaic panels above agricultural land are disclosed. The photovoltaic panels can be suspended over agricultural land and supported by vertical holders, which are generally arranged in a two-dimensional grid. Sufficient clearance exists between the base surface and the photovoltaic panels for the operators and the agricultural machinery. The position of the photovoltaic panels can be adjusted using panel orientation systems. A decision about the photovoltaic panel angle with respect to the incoming sunlight can be based on the insolation/shade needs of the agricultural plants beneath the system and also on the need to generate electrical energy by insolating the panels. Furthermore, the systems and methods can be used for a net metering of energy. An energy ratepayer who is also a sole or fractional owner of the renewable energy production capacity can subtract the energy production from the energy consumption, thus resulting in the net metering of energy. | 10-21-2010 |