An updated numerical model of Patuha geothermal field for optimization and sustainable production

IF 3.5 2区工程技术 Q3 ENERGY & FUELS Geothermics Pub Date : 2024-05-13 DOI:10.1016/j.geothermics.2024.103052

Ali Ashat , Heru Berian Pratama , Ryuichi Itoi , Luthfan Hafizha Judawisastra , Ruly Husnie Ridwan , Ichwan Elfajrie

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Abstract

A multidisciplinary framework for the sustainable utilization and efficient use of Patuha geothermal field is proposed here to evaluate the development of 110 MW. The significance of applying a strategic approach is emphasized, taking into account the connections between the analysis of geothermal systems, resources, and power production. A three-dimensional numerical model of the Patuha reservoir for fluid flow and heat transfer was developed using the TOUGH2 simulator based on the analysis of updated integrated geoscience data combined with well data. The model was validated for natural state and production history, then used for reassessment of the geothermal resources using probabilistic resource assessment and experimental design and for reservoir plant optimization. Several case studies were conducted, which concluded that the model could be used as a practical tool to support the Patuha development plan. The forecast indicates the reservoir sustains the additional capacity of 55 MW for Patuha Unit 2, which is at the threshold of 116 MW from a probabilistic resource assessment. According to the base case scenario, it was determined that 18 additional make-up wells are required to maintain 30 years of production.

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更新帕图哈地热田数值模型，促进优化和可持续生产

本文提出了一个可持续利用和有效利用帕图哈地热场的多学科框架，以评估 110 兆瓦的开发。考虑到地热系统分析、资源和电力生产之间的联系，强调了采用战略方法的重要性。在分析更新的综合地球科学数据和油井数据的基础上，使用 TOUGH2 模拟器开发了帕图哈储层流体流动和传热的三维数值模型。该模型针对自然状态和生产历史进行了验证，然后利用概率资源评估和实验设计对地热资源进行了重新评估，并用于储层设备优化。进行了几项案例研究后得出结论，该模型可作为支持帕图哈开发计划的实用工具。预测结果表明，水库可为帕图哈 2 号机组提供 55 兆瓦的额外发电量，这与概率资源评估得出的 116 兆瓦的临界值相吻合。根据基础方案，确定需要增加 18 口补给井，以维持 30 年的生产。

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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.