Extracting geologic information from multiple offset stacks and/or angle stacks

摘要

Geologic information may be extracted from multiple offset stacks and/or angle stacks. Offset stacks and/or angle stacks may be received that represent energy that has propagated through a geologic volume of interest from energy sources to energy receivers. Attribute volumes associated with individual source-receiver offsets and/or source-receiver angles may be determined based on corresponding offset stacks and/or angle stacks. For individual offset stacks or angle stacks, corresponding sets of geologic features represented in the attribute volumes may be identified. The sets of geologic features corresponding to the different offset stacks and/or angle stacks to may be compared to determine discrepancies and/or similarities between the sets of geologic features corresponding to the different offset stacks and/or angle stacks. Stratigraphic interpretations, stratigraphic predictions, and/or other interpretations and/or predictions may be determined based on causes of the discrepancies and/or similarities.

主权项

1. A computer-implemented method for analyzing multiple offset stacks and/or angle stacks, associated with a geologic volume of interest that includes geomorphic features, the method comprising:
receiving a plurality of offset stacks and/or angle stacks, that represent energy that has propagated through the geologic volume of interest from one or more energy sources to one or more energy receivers, an individual energy source being physically separated from an individual energy receiver by a corresponding source-receiver offset, each individual offset stack being formed from corresponding sets of seismic traces based on source-receiver offsets, each individual angle stack being formed from corresponding sets of seismic traces based on source-receiver angles; determining a plurality of attribute volumes associated with individual source-receiver offsets and/or source-receiver angles, based on corresponding offset stacks and/or angle stacks; identifying, for individual offset stacks and/or angle stacks, corresponding sets of geomorphic features represented in the attribute volumes determined from the individual offset stacks and/or angle stacks; and comparing the sets of geomorphic features corresponding to the different offset stacks and/or angle stacks, to determine discrepancies and/or similarities, between the sets of geomorphic features corresponding to the different offset stacks and/or angle stacks.