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 system configured to identify a set of geologic features within a geologic volume of interest, the system comprising:
one or more processors configured to execute computer program modules, the computer program modules comprising: a communications module configured to receive 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 a corresponding set of seismic traces having equivalent source-receiver offsets, each individual angle stack being formed from corresponding sets of seismic traces having equivalent source-receiver angles; an image volume module configured to determine attribute volumes representing attributes of the geologic volume of interest from the plurality of offset stacks and/or angle stacks such that from a given offset stack or angle stack a corresponding one or more attribute volumes are determed; a feature identification module configured to individually and collectively analyze the attribute volumes to identify geologic features within the geologic volume of interest represented in the individual attribute volumes; and an analysis module configured to determine a set of geologic features within the geologic volume of interest from the identified geologic features represented in the individual attribute volumes.