气候变化领域集成服务门户(CCPortal): Integrated sustainability assessment of repurposing onshore abandoned wells for geothermal power generation

CCPortal

DOI	10.1016/j.apenergy.2024.122670
	Integrated sustainability assessment of repurposing onshore abandoned wells for geothermal power generation
	Li, Jingyi; Gallego-Schmid, Alejandro; Stamford, Laurence
发表日期	2024
ISSN	0306-2619
EISSN	1872-9118
起始页码	359
卷号	359
英文摘要	As global efforts intensify to mitigate climate change through Net-Zero by 2050, the transition from fossil fuels to renewable energy sources is of utmost importance. Within this context, geothermal power generation is an underestimated yet rapidly developing field with immense potential. A notable opportunity arises from repurposing abandoned oil and gas wells (AOGWs) as alternative sources for geothermal power production. This study employs multi-criteria decision analysis (MCDA) to examine the techno-sustainability of four geothermal power systems: i) a business-as-usual geothermal power plant (GEO(bau)), ii) repurpose two completely AOGWs for geothermal power generation (R-GEO(double)), iii) repurpose a single completely AOGW (R-GEO(single)), iv) repurpose semi-AOGWs (i.e., wells still in operation but with high water cut, R-GEO(semi)). We assessed 30 criteria across technical, environmental, economic, and social dimensions via the analytical hierarchy process. The study identifies R-GEO(semi) as the most techno-sustainable option due to its superior performance across environmental, economic, and social dimensions. However, GEO(bau) closely follows R-GEO(semi), securing its position as the second-best option, marked by its outstanding technical proficiency and robust environmental and social performance. Conversely, R-GEO(double) and R-GEO(single) show limited techno-sustainability competitiveness. When sensitivity analyses are applied to the weighting factors, R-GEO(semi) demonstrates resilience and remains as the best option in most cases. However, GEO(bau) could outperform R-GEO(semi) when the value of technical criteria is increased (weightings >0.255) or when the weightings for environmental or economic aspects decrease (weightings <0.236 and < 0.244 respectively). R-GEO(double) and R-GEO(single) only overtake GEO(bau) when the economic aspect reaches a weighting of 0.659 or more. Despite R-GEO(semi) being the most promising option, it faces challenges due to limited power generation capacity and the availability of wells approaching their end-of-lives. The findings underline the necessity for broader stakeholder input, inclusion of more technical and social criteria, and data-driven decision-making processes.
英文关键词	Life cycle techno-sustainability assessment; Renewable electricity; Multi-criteria decision analysis (MCDA); Energy transition; Geothermal energy; Circular economy
语种	英语
WOS研究方向	Energy & Fuels ; Engineering
WOS类目	Energy & Fuels ; Engineering, Chemical
WOS记录号	WOS:001177557000001
来源期刊	APPLIED ENERGY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/305478
作者单位	University of Manchester; University of Manchester
推荐引用方式 GB/T 7714	Li, Jingyi,Gallego-Schmid, Alejandro,Stamford, Laurence. Integrated sustainability assessment of repurposing onshore abandoned wells for geothermal power generation[J],2024,359.
APA	Li, Jingyi,Gallego-Schmid, Alejandro,&Stamford, Laurence.(2024).Integrated sustainability assessment of repurposing onshore abandoned wells for geothermal power generation.APPLIED ENERGY,359.
MLA	Li, Jingyi,et al."Integrated sustainability assessment of repurposing onshore abandoned wells for geothermal power generation".APPLIED ENERGY 359(2024).