Abstract: The present disclosure provides an automated interpretation workflow for smooth surface wrapping of an imaged volume. The methods use a volume attribute to classify data into regions corresponding to feature/uncertain/non-feature parts and use smoothing through the uncertain parts to connect the clear boundaries of the feature. Any volume attribute can be used as long as feature/uncertain/non-feature categories can be identified in terms of continuous or discontinuous threshold values or ranges. The workflow can be combined with interpretation of well-defined boundary parts to resolve uncertainty and can be used with both explicit single-z and implicit multi-z (level set) boundary representations.

Abstract: The present disclosure provides an automated interpretation workflow for smooth surface wrapping of an imaged volume. The methods use a volume attribute to classify data into regions corresponding to feature/uncertain/non-feature parts and use smoothing through the uncertain parts to connect the clear boundaries of the feature. Any volume attribute can be used as long as feature/uncertain/non-feature categories can be identified in terms of continuous or discontinuous threshold values or ranges. The workflow can be combined with interpretation of well-defined boundary parts to resolve uncertainty and can be used with both explicit single-z and implicit multi-z (level set) boundary representations.

Abstract: A method of processing data points distributed throughout a geological volume is described. In the method, each data point is associated with respective geological attributes. The method provides for: coding the geological attributes of each data point as a respective character string; compiling a query character string defining sought geological attributes of an arrangement of one or more data points; searching the coded geological attributes for arrangements of data points having geological attributes matching the query character string; and identifying matched data points.

Abstract: A method of analysing a subsurface region. 4D seismic data is received from a subterranean reservoir that is being seismically evaluated. A first set of values representing a first attribute at a plurality of first coordinates within the subsurface region is obtained from the 4D seismic data. A second set of values representing a second attribute at a plurality of second coordinates within the subsurface region is also obtained from the 4D seismic data, wherein each of the plurality of second coordinates corresponds to a respective first coordinate. For each first coordinate, a measure of dependence is calculated and the calculated measure of dependence is used to detect changes in the reservoir over time.

Abstract: A method of determining a search expression describing a feature of interest in a set of data points distributed throughout a geological object is provided. Each data point contains a value for a geological attribute at that point. The search expression has a plurality of entries. The method including the steps of: (i) displaying the geological object using display codings corresponding to value subranges for the geological attribute such that all data points which have values for the geological attribute falling within a given value subrange are displayed with the same coding; (ii) selecting a plurality of data points of the feature of interest; and (iii) allocating value characters to entries of the search expression, the value characters corresponding to the value subranges for the geological attribute of the selected data points.

Abstract: A computer-implemented method of determining a search expression describing a feature of interest in a set of data points distributed throughout a geological object is provided. Each data point contains a value for a geological attribute at that point. The search expression has a plurality of entries. The method including the steps of: (i) displaying the geological object using display codings corresponding to value subranges for the geological attribute such that all data points which have values for the geological attribute falling within a given value subrange are displayed with the same coding; (ii) selecting a plurality of data points of the feature of interest; and (iii) allocating value characters to entries of the search expression, the value characters corresponding to the value subranges for the geological attribute of the selected data points.

Abstract: A method of processing data points distributed throughout a geological volume is described. In the method, each data point is associated with respective geological attributes. The method provides for: coding the geological attributes of each data point as a respective character string; compiling a query character string defining sought geological attributes of an arrangement of one or more data points; searching the coded geological attributes for arrangements of data points having geological attributes matching the query character string; and identifying matched data points.