钻探工程2024，Vol.51Issue(3)：1-8,8.DOI:10.12143/j.ztgc.2024.03.001
美国能源部地热钻井技术研发最新部署及干热岩开发示范创新实践
The latest deployment of the U.S.Department of Energy's geothermal drilling technology R&D and innovative practices in the demonstration of hot dry rock development
摘要
Abstract
Geothermal energy is the only base load power among the major renewable energy sources.Hot dry rock(HDR)is a high temperature rock mass buried in the deep earth without connate water or with a little water,which can form an enhanced geothermal system reservoir through hydraulic stimulation,and a considerable amount of geothermal energy can be extracted.There are two main technological challenges associated with the development of HDR geothermal resource,i.e.,very hard rock,such as granite or basalt limits the rate of penetration(ROP),and the temperature of the drilling system exceeds the operational limits of electronic tools like measurement while drilling(MWD)and steerable rotary tools.In recent years,the Utah FORGE project funded by the U.S.Department of Energy(DOE)provided an opportunity to test new drill bit technology and optimize drilling procedures to deliver a step change in ROP performance and drilling cost reduction.In this paper,the deployment of geothermal drilling technology R&D in the recent development plan of DOE Geothermal Technology Office is reviewed,the application of the redesign workflows based on physical limits in the drilling practice of the Utah project is selective analyzed,and the main areas covered by the multiple plans and projects funded by DOE in terms of geothermal drilling technology as well as the lessons learned from the Utah project in exploring and practicing drilling operation optimization are summarized.关键词
干热岩型地热资源/增强型地热系统/地热能前沿瞭望台研究计划/机械比能/钻压/转速/PDC钻头Key words
HDR geothermal resources/enhanced geothermal energy(EGS)/Frontier Observatory for Research in Geothermal Energy(FORGE)/mechanical specific energy(MSE)/weight on bit(WOB)/revolutions per minute(RPM)/polycrystalline diamond compact(PDC)bit分类
石油、天然气工程引用本文复制引用
张炜,王海华,翁炜,姚树青,邵明娟..美国能源部地热钻井技术研发最新部署及干热岩开发示范创新实践[J].钻探工程,2024,51(3):1-8,8.基金项目
中国地质调查局地质调查项目"地球科学文献知识服务与决策支撑"(编号:DD20230139)、"清洁能源情报跟踪与研究"(编号:DD20230602) （编号:DD20230139）
