Multimodal Stratigraphic Play Targeting via Integrated Seismic Analysis

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Solution Overview

Problem

Current methods for targeting stratigraphic plays in hydrocarbon exploration are inefficient, slow, or expensive due to complexities in seismic geomorphology and amplitude-variation-with-offset inversion, and often result in false traps caused by poor seismic data quality.

Innovation Solution

A computer-implemented system processes stratigraphic data from multiple sources to generate conditioned data, extracts seismic attributes, determines seismic surfaces and structural elements, correlates sedimentary layers with seismic reflection data, and builds 2D and 3D models to assess hydrocarbon potential, using techniques like seismic sequence stratigraphy, rock physics, and machine learning.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If traditional approaches to locate and evaluate structural traps are used, then the process can be completed with conventional methods, but the efficiency is low and the process is slow

Engineering Contradiction:
Improveefficiency of locating and evaluating structural trapsVSAvoidtime required for the process
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The patent combines multiple geoscience domains (seismic sequence stratigraphy, rock physics, seismic inversion, machine learning) into an integrated framework that processes and correlates data from multiple sources simultaneously, improving efficiency by eliminating sequential processing steps

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The system performs multiple functions within a unified platform: processing stratigraphic data, extracting seismic attributes, determining structural elements, correlating sedimentary layers with seismic reflections, and generating 2D/3D models, thereby reducing the need for separate specialized tools

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Productivity

If traditional approaches are used, then the process can be completed with conventional methods, but the cost is high

Engineering Contradiction:
Improveefficiency of locating and evaluating structural trapsVSAvoidresource expenditure
Core Design Contradiction:
ProductivityVSQuantity of substance

Solution Approach 1:

By merging multiple data sources and processing methods into a single integrated framework, the system reduces redundant expenditures and optimizes resource allocation across different geoscience domains

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The system creates virtual 2D and 3D models of subsurface structures from processed data, allowing multiple evaluation scenarios to be simulated without requiring additional physical drilling or field work

Inventive Principle:
Principle #26Copying

3Productivity

If poor seismic data quality is present, then data processing can be performed, but false traps and features are generated

Engineering Contradiction:
Improvedata processing capabilityVSAvoidaccuracy of identified features
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The system incorporates quality control mechanisms that provide feedback on data reliability at multiple stages, allowing identification and correction of artifacts while maintaining processing continuity

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The integrated framework acts as an intermediary that filters and validates data from multiple sources before final interpretation, using cross-validation between different data types to eliminate false features

Inventive Principle:
Principle #24Intermediary (Mediator)

4Measurement precision

If complexities in seismic geomorphology and AVO inversion are addressed, then more accurate results can be achieved, but the process becomes more difficult

Engineering Contradiction:
Improveaccuracy of seismic interpretationVSAvoidcomplexity of the processing system
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent segments the complex processing workflow into distinct modules: stratigraphic data processing, seismic attribute extraction, structural element determination, and model generation, making each component more manageable and easier to implement

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS11852768B2Multimodal approach to target stratigraphic plays through seismic sequence stratigraphy, rock physics, seismic inversion and machine learning
Publication Date: 2023.12.26 SAUDI ARABIAN OIL CO
  • US11852768B2 patent drawing
  • US11852768B2 patent drawing
  • US11852768B2 patent drawing

AI summary

Computer-implemented stratigraphic play quality generation is disclosed. Stratigraphic data can be processed from each of a plurality of respective data sources to generate conditioned stratigraphic data. From at least some of the conditioned stratigraphic data, attributes of at least one seismic sequence can be extracted, and at least one seismic surface and at least one structural element associated with at least some of the conditioned stratigraphic data can be determined. At least some of the conditioned stratigraphic data representing sedimentary layers can be correlated with seismic reflection data to ascertain a subsurface of the geologic area at a respective depth. Reservoir properties associated with the geologic area are linked to elastic properties, and a 2D model built. Moreover, 3D map can be generated that is usable for a prospective drilling plan.