Offset Stack Analysis for Lithology Prediction
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Solution Overview
Problem
Conventional workflows for predicting spatial distribution of lithology and stratigraphic architecture in geologic volumes of interest are limited as they rely on selecting a single offset stack or angle stack, missing geological attributes that may be present in other generated volumes.
Innovation Solution
A computer-implemented method and system that analyze a plurality of offset stacks and angle stacks to determine attribute volumes, identifying geologic features by leveraging discrepancies and similarities, thereby improving lithology prediction and stratigraphic interpretations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a single offset stack or angle stack is selected for interpretation, then the workflow is simple and fast, but geological attributes present in other volumes are missed
Solution Approach 1:
The patent merges multiple offset stacks and/or angle stacks into a single integrated analysis framework. Instead of selecting one stack, the system combines information from multiple stacks, allowing interpreters to analyze geological features across different offset or angle domains simultaneously, thereby capturing attributes that would be missed in a single-stack approach
Solution Approach 2:
The system creates a multi-functional analysis platform that can process and interpret multiple offset stacks and angle stacks within a single workflow. This universal approach allows the same interpretation framework to handle diverse stack types, enabling comprehensive geological analysis without requiring separate workflows for each stack
2Loss of information
If multiple offset stacks and angle stacks are analyzed individually, then more geological attributes are captured, but the workflow complexity increases
Solution Approach 1:
The patent merges the analysis of multiple offset stacks and angle stacks into a unified workflow. By integrating multiple stacks simultaneously rather than analyzing them separately, the system reduces workflow complexity while maintaining comprehensive geological attribute capture
Solution Approach 2:
The system performs preliminary processing and organization of multiple offset stacks and angle stacks before interpretation. This preliminary action prepares the data in a standardized format, making subsequent analysis more efficient and reducing the perceived complexity of working with multiple stacks
Data Source
AI summary
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.