Reservoir impact optimization of geothermal utilization using stock reservoir modeling

IF 3.5 2区工程技术 Q3 ENERGY & FUELS

Geothermics Pub Date : 2025-06-21 DOI:10.1016/j.geothermics.2025.103430

Arkaitz Manterola Donoso , María Gudjónsdóttir , Egill Júlíusson , Hlynur Stefánsson

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引用次数: 0

Abstract

Studying the production impacts on both the reservoir and the environment is crucial for the sustainable utilization of geothermal resources. This study presents an approach that combines stock reservoir modeling (SRM) with production optimization to generate a more sustainable production schedule for geothermal wells. SRM is a quick-solving, data-driven method that uses only historical production data to model the relationship between extraction, recharge, and stock levels, allowing operators to predict the impact of production on geothermal systems efficiently.

One of the studys’ primary contributions is to generate 3D surfaces that link geothermal well productivity rates, output, and wellhead pressures, which provide a time-independent visual representation of well behavior and allow the study of production patterns. This methodology was tested with real production data, and the results confirm that SRM is an easy-to-use modeling technique that can model geothermal production impacts in high-temperature geothermal systems where well-to-well interactions are likely to be limited.

Additionally, the study introduces a novel approach to integrate SRM with production scheduling, considering technical, financial, and environmental parameters. The optimization model demonstrates the potential to prioritize wells based on characteristics such as CO2 emissions and enthalpy, resulting in a more sustainable production schedule. The results show a potential reduction in emissions without lowering its revenue compared to current operations.

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基于存量储层建模的地热利用储层影响优化

研究地热生产对储层和环境的影响对地热资源的可持续利用至关重要。本研究提出了一种将储层建模（SRM）与生产优化相结合的方法，以制定更可持续的地热井生产计划。SRM是一种快速解决、数据驱动的方法，仅使用历史生产数据来模拟开采、回灌和库存水平之间的关系，使作业者能够有效地预测生产对地热系统的影响。该研究的主要贡献之一是生成了将地热井产能、产量和井口压力联系起来的3D界面，从而提供了与时间无关的井动态可视化表示，并允许研究生产模式。该方法在实际生产数据中进行了测试，结果证实SRM是一种易于使用的建模技术，可以在井与井之间的相互作用可能有限的高温地热系统中模拟地热生产影响。此外，该研究还介绍了一种将SRM与生产调度相结合的新方法，考虑了技术、财务和环境参数。该优化模型显示了根据CO2排放和焓等特征对井进行优先排序的潜力，从而实现更可持续的生产计划。结果显示，与目前的运营相比，在不降低收入的情况下，有可能减少排放。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Geothermics 工程技术-地球科学综合

CiteScore

7.70

自引率

15.40%

发文量

237

审稿时长

4.5 months

期刊介绍： Geothermics is an international journal devoted to the research and development of geothermal energy. The International Board of Editors of Geothermics, which comprises specialists in the various aspects of geothermal resources, exploration and development, guarantees the balanced, comprehensive view of scientific and technological developments in this promising energy field. It promulgates the state of the art and science of geothermal energy, its exploration and exploitation through a regular exchange of information from all parts of the world. The journal publishes articles dealing with the theory, exploration techniques and all aspects of the utilization of geothermal resources. Geothermics serves as the scientific house, or exchange medium, through which the growing community of geothermal specialists can provide and receive information.