Method and System for Geophysical Modeling of Subsurface Volumes Based on Label Propagation

摘要

Method and system are described for generating a stratigraphic model of a subsurface volume. Measured geophysical data are converted into a vector volume (106) by assigning to each sample in each trace in the data volume a vector representing dip, azimuth or confidence. Then a labeled volume is generated from the vector volume by assigning a label to each sample in an initial trace (1006), then selecting a propagation pattern (1008) and propagating the labels to other traces (1010). Horizons can be extracted (110) from the labeled volume, and utilized to enhance the process of producing hydrocarbons (114).

主权项

1. A method of converting data into a subsurface model comprising:
obtaining a data volume associated with a subsurface volume, wherein the data volume has a plurality of traces and each of the plurality of traces includes a plurality of samples; forming a vector volume from the data volume, using a computer, wherein each sample within one or more of the traces in the data volume is assigned a vector representing one or more of dip, azimuth and confidence; using the computer, generating a labeled volume based on the vector volume by propagating labels from at least one initial trace, wherein each of the samples is associated with one of the labels; one or more of storing the labeled volume in memory accessible by a computer system and displaying the labeled volume on a display accessible by the computer system; and using the labeled volume to generate a subsurface model.