Multi-Resolution Oilfield Asset Modeling
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Solution Overview
Problem
Integrated modeling of large and complex oilfield assets is computationally expensive and time-consuming, especially at high resolutions, leading to a tradeoff between accuracy and turnaround time, as existing methods struggle to balance precision and speed effectively.
Innovation Solution
A method that selects sector models at varying resolutions for different parts of an oilfield asset, building a multi-resolution integrated asset model that couples sector models to a surface network, allowing for flexible balancing of accuracy and turnaround time by using sector models at different levels of detail, from high to coarse resolutions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If high resolution modeling is used to improve accuracy, then manufacturing precision is improved, but productivity deteriorates due to computational expense and time consumption
Solution Approach 1:
The patent divides the oilfield asset model into multiple independent sector models, each representing a specific geographic or functional portion of the reservoir. This segmentation allows each sector to be modeled and simulated independently at appropriate resolutions, reducing the overall computational burden while maintaining accuracy where needed.
Solution Approach 2:
The patent enables different resolution levels to be applied to different sectors based on their specific requirements. Critical sectors with complex geology or high production value can be modeled at high resolution for accuracy, while less critical sectors can use coarser resolutions to reduce computational cost, achieving an optimal balance between overall model accuracy and simulation speed.
2Measurement precision
If high resolution modeling is used to improve accuracy, then measurement precision is improved, but loss of time increases due to computational expense
Solution Approach 1:
By segmenting the model into independent sectors, the patent enables parallel processing of different sector simulations. This reduces the total time required to achieve accurate predictions across the entire asset, as computational tasks can be distributed and executed simultaneously rather than sequentially.
Solution Approach 2:
The patent allows dynamic adjustment of resolution parameters for different sectors based on their importance and complexity. This parameter variation enables the model to allocate computational resources efficiently, spending more time on critical sectors requiring high accuracy while using less time on less critical areas, thereby reducing overall modeling time without sacrificing essential prediction accuracy.
Data Source
AI summary
A method, apparatus, and program product model an oilfield asset by selecting, for each of multiple sectors of the oilfield asset, a sector model from among a collection of sector models, building a multi-resolution integrated asset model of the oilfield asset using the selected sector model for each of the sectors, and performing a computer simulation using the multi-resolution integrated asset model. The collection of sector models for each sector includes multiple sector models modeled at varying resolutions. In addition, the multi-resolution integrated asset model includes a surface network model that couples the selected sector models to one another. As such, different sectors of an oilfield asset may be modeled at varying resolutions to balance accuracy and turnaround time when performing integrated oilfield asset modeling.