Abstract: A system for predicting hydrocarbon production from a subterranean region of interest using reflection seismic data. The system sets a drainage area around reference traces and defines drainage pathways extending outwardly from the reference trace towards the perimeter of the drainage area. A mathematical combination of the trace-to-trace coherence factors and reservoir quality attributes along each drainage pathway is calculated for each reference trace, thereby providing an indication of both initial and sustained hydrocarbon production from that location.

Abstract: A system for filtering elevation-sensitive data. The system generates coincident contour and attribute maps of a physical structure. A filter band that is limited to a certain range of contour values is used to filter the attribute values that are output to a CBA attribute map. The filter band applied to the data is defined between upper and lower boundaries, with each boundary having a substantially constant contour value. Thus, each data point has a uniquely-shaped a real filter that is at least partly defined by the filter band.

Abstract: A system for filtering elevation-sensitive data. The system generates coincident contour and attribute maps of a physical structure. A filter band that is limited to a certain range of contour values is used to filter the attribute values that are output to a CBA attribute map.

Abstract: A system for predicting hydrocarbon production from a subterranean region of interest using reflection seismic data. The system sets a drainage area around reference traces and defines drainage pathways extending outwardly from the reference trace towards the perimeter of the drainage area. A mathematical combination of the trace-to-trace coherence factors and reservoir quality attributes along each drainage pathway is calculated for each reference trace, thereby providing an indication of both initial and sustained hydrocarbon production from that location.

Abstract: In accordance with the present invention, there is disclosed herein a method of seismic interpretation that is designed to improve the quality and speed with which an explorationist can pick and interpret a seismic section or volume. The instant invention utilizes unseeded picking to create a collection of patches or areas of similar-character reflector picks. The method is unsupervised initially and builds an output database that preferably contains the time and amplitude of each “assigned” event, an assigned event being a seismic reflection that is determined to be similar in some sense to its neighboring traces. Then, during subsequent interpretation the explorationist quickly builds an interpretation by utilizing and selecting from the pre-assembled collections of similar traces stored in the database.

Abstract: A method for suppressing noise in a common depth point gather of seismic data traces is disclosed in which noisy data traces are detected and muted by a sequence of data processing steps prior to making a final stack of the data traces.

Abstract: A computer implemented method for mapping seismic attributes derived from analysis of isochron measurements is disclosed. According to the disclosed method planar surfaces, which model the upper and lower surface of a subterranean layer, are numerically inserted in a seismic data volume with the edges of the planar surfaces connecting reflection events of a three-by-three array of seismic traces. Using the model surfaces, isochron attributes are calculated including the amount of isochron thickening or thinning in the direction of dip, and the azimuth of maximum thickness change. The thus calculated attributes are written to data cubes, which can be displayed in a variety of ways.

Abstract: A computer implemented method for analyzing seismic data to discover a real trends of multi-attributes in a seismic data volume is disclosed. According to the disclosed method and apparatus the full waveforms of multiple traces are compared in a zone that extends above and below an interpreted horizon, and the comparisons are made using a correlation algorithm that considers both shape and absolute amplitude of the waveforms being compared. Based on the multiple comparisons, traces are classified according to waveform shape such that maps of common waveform classes show areas of similar lithology and/or hydrocarbon effects.

Abstract: A method and apparatus for predicting barriers to fluid flow in a subterranean reservoir using well data and 3-D seismic data are disclosed, where a preferred first step in the method models petrophysical properties of the reservoir to provide model logs which are expressible as continuous curves of a reservoir property as a function of depth. The next step selects individual data points on the continuous curves, which traverse a subterranean layer, and assigns a flow or nonflow state to each data point based on comparing a threshold value of a reservoir property with the value predicted by the data point. The layer is divided into a multitude of subvolumes each containing a single data point, and then a connectivity factor, which considers multiple flow paths around each data point, is calculated for each subvolume.

Abstract: A method and apparatus for predicting distribution of reservoir permeability or porosity and pseudo relative permeability using well data and 3-D seismic data are disclosed, where a preferred first step in the method models the reservoir property of interest to provide model logs which are expressible as continuous curves of a reservoir property as a function of depth. The next step selects individual data points on the continuous curves traversing a reservoir layer and determines permeable trends for a multitude of column-like subvolumes which each enclose a portion of the selected data points. The subvolumes are then divided into a desired number of horizontal slices, with each slice containing a number of the model data points. An average value for the property in each slice is calculated, and the average values are plotted versus depth for each subvolume, thus providing a derived curve of depth versus the reservoir property.

Abstract: A method of modeling subsurface reservoir conditions deals with non-uniqueness of seismic reflection signals with respect to reservoir conditions by proposing and then comparing both seismic and lithologic data for forward model sites to select the most likely model for each site. Forward modeling techniques are used to build a synthetic seismic trace catalog, which includes a range of corresponding pseudo-logs for reservoir characteristics that could reasonably exist within a defined region. Then each synthetic seismic trace in the catalog is compared against every real seismic trace, and a number (e.g., 10 to 50) of synthetic traces is selected for association with each real trace that best match the real trace.