Modelling, Characterisation and Optimisation of Deep Geothermal Energy in the Cheshire Basin

柴郡盆地深层地热能的建模、表征和优化

• 批准号: 1633025
• 金额: --
• 依托单位: University of Birmingham
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2015
• 资助国家: 英国
• 起止时间: 2015 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-1633025
• 关键词: Modelling; Characterisation; Optimisation; Deep; Geothermal

In 2008, the UK Government pledged to reduce greenhouse gas emissions by 80% before 2050. Renewable energy solutions are a key part of this commitment with deep geothermal energy systems playing an important role in this strategy. The southern region of the Cheshire Basin in the northwest of the UK is one of only a handful of economically suitable sites in the country. The basin holds around 4.6M GWh of potentially available energy, more than 6 times the national heat demand of the UK. To exploit this resource, Cheshire East Council (the CASE partner) have instigated a programme of long-term Deep Geothermal Energy (DGE) research in collaboration with local universities and Public/Private sector partners. Over 250K pounds of initial research funding has been invested into the DGE project and this 4-year, collaborative CASE studentship with Keele University's Applied and Environmental Geophysics Group forms the next stage in this ambitious development programme.In order to evaluate, characterise and optimise the delivery of deep geothermal energy as heat to homes and business in the East Cheshire region (and potentially to some 2 million consumers in the future), this CASE studentship project will attempt to simulate the transfer of heat energy from the deep geothermal reservoir (at a depth of nearly 4km), through a borehole array system and across to potential customers as low-carbon, cost-effective heating in a single, combined 'multiphysics' geothermal model. The ultimate goal of the project is to create a realist, accurate, flexible model that can be used to predict, optimise and probabilistically characterise the energy return of the Deep Geothermal Energy system when it comes online in 3-4 years' time. In addition, it is expected that the model will help inform and optimise the design of future DGE systems planned by Cheshire East council in the future. To achieve this, the student will;1) Use sophisticated geological modelling, characterisation and visualisation tools to generate a 3D model of the hydrogeological conditions at the depth of the intended borehole array using existing geophysical, borehole, structural and sedimentological data plus new information from the planned investigation work and borehole drilling at the DGE site.2) Model/simulate the 3D coupling of fluid and thermal fluxes in the active region of the borehole array system in order to predict the volume, flow and temperate of extracted waters from DGE system. The model will utilise hydro/petrophysical data information gained from the boreholes and physical/geometrical design information from the installed borehole array.3) Test, validate, revise and optimise the models (with reference to real thermal, flux and flow data provided by the licenced DGE system operators) in order to provide a single model that best simulates the whole of the energy system at the point of delivery.Cheshire East Council have an ambitious 25-year strategy to develop more DGE systems in the Cheshire Basin and the ability to model, characterise and optimise the design of future installations, based on the work undertaken in this studentship, has clear and significant financial, developmental and socio-economic benefits to all parties involved (i.e., the Council, consumers, developers and licenced operators). This studentship will also provide the selected candidate with a challenging, yet highly-rewarding project within one of Europe's leading near-surface geophysics research groups and, arguably, the most forward-looking local council with respect to renewable energy development. The project links the diverse and multidisciplinary fields of geology, geophysics and numerical modelling with the broader disciple of energy-related environmental engineering and district heat network design. As such, it represents an unrivalled opportunity for a talented student to work in a rapidly developing and increasing important sector of the energy market.

2008年，英国政府承诺在2050年之前将温室气体排放量减少80%。可再生能源解决方案是这一承诺的关键部分，深层地热能系统在这一战略中发挥着重要作用。英国西北部的柴郡盆地南部地区是该国仅有的几个经济上合适的地点之一。该盆地拥有约460万GWh的潜在可用能源，是英国全国热需求的6倍多。为了利用这一资源，柴郡东理事会（CASE合作伙伴）与当地大学和公共/私营部门合作伙伴合作，发起了一项长期的深层地热能（DGE）研究计划。超过25万英镑的初始研究资金已投入到DGE项目中，与基尔大学应用和环境地球物理学小组合作的为期4年的CASE学生制构成了这个雄心勃勃的发展计划的下一个阶段。在东柴郡地区，优化深层地热能作为家庭和企业供暖的输送（未来可能有200万消费者），这个CASE学生项目将试图模拟深层地热储层的热能转移（在近4公里的深度），通过钻孔阵列系统，并跨越到潜在的客户作为低碳，具有成本效益的加热在一个单一的，多物理场地热模型该项目的最终目标是创建一个现实的，准确的，灵活的模型，可用于预测，优化和概率分析深层地热能系统在3-4年内上线时的能量回报。此外，预计该模型将有助于通知和优化未来的DGE系统的设计计划由柴郡东理事会在未来。要做到这一点，学生会; 1）使用复杂的地质建模、表征和可视化工具，使用现有的地球物理钻孔，结构和沉积学数据，加上DGE现场计划的调查工作和钻孔的新信息。2）模型/模拟井孔阵列系统活动区的三维流体和热通量耦合，预测DGE系统抽取沃茨的体积、流量和温度。该模型将利用从钻孔中获得的水文/岩石物理数据信息和从安装的钻孔阵列中获得的物理/几何设计信息。3）测试、验证、修改和优化模型（关于真实的热，由持牌DGE系统操作员提供的通量和流量数据）为了提供一个单一的模型，最好地模拟整个能源系统的交付点。柴郡东理事会有一个雄心勃勃的25-一年的战略，以开发更多的DGE系统在柴郡盆地和能力，建模，建模和优化设计的未来装置，在此学生所进行的工作的基础上，有明确和显着的财政，发展和社会经济效益，所有有关各方（即，理事会、消费者、发展商及持牌经营者）。该奖学金还将为选定的候选人提供一个具有挑战性，但回报率很高的项目，该项目位于欧洲领先的近地表地球物理学研究小组之一，可以说是最具前瞻性的地方理事会，涉及可再生能源开发。该项目将地质学、地球物理学和数值模拟等多种多样的多学科领域与能源相关的环境工程和区域热力网设计等更广泛的学科联系起来。因此，它代表了一个无与伦比的机会，一个有才华的学生在能源市场的快速发展和日益增长的重要部门工作。