Method for editing a multi-point facies simulation

A computer system for implementing a hybrid method for combining multipoint statistic and object-based methods, the computer system comprising:

• a computer readable memory configured to store input data comprising conditioning data, constraints, and training-image generation parameters;
• and
• a processor configured toread input data including the conditioning data and constraints and the training-image generation parameters to:
• create 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;
• generate one or more object-shape templates of a 2D or 3D object-shape and depositional or structural coordinates of each facies type using the training image generation parameters;
• position the one or more generated object-shape templates within the MPS model such that the one or more generated object-shape templates maximally correlate to the MPS model;
• assign to each of the one or more positioned object-shape templates a unique event reference and assigning the same unique event reference to cells within or in the vicinity of each corresponding object-shape template;
• determine which cells are to be left unedited and which cells are available for editing;
• and
• assign the cells that are available for editing to facies if the cells that are available for editing are contained by a facies object-shape template positioned within the MPS model at its optimally correlating location.