BLD系列地热井用高效保温钢管的研制与应用
投稿时间:2021-02-11  修订日期:2021-04-28  点此下载全文
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作者单位邮编
张科明 无锡贝来石油专用管有限公司 214151
王智作 无锡贝来石油专用管有限公司 214151
孙建华 中国地质科学院勘探技术研究所 065000
周正新 无锡贝来钢管有限公司 214151
钱山红 无锡贝来石油专用管有限公司 214151
中文摘要:我国能源行业发展由清洁高效进入了降碳节能的新阶段,作为清洁、零碳能源的地热能,迎来了空前的发展机遇。目前地热开发过程中井下保温管道运用不规范,甚至不适用,大大浪费了地热资源,为科学、高效、高质量利用地热能,研制地热井用高效保温钢管很有必要。借鉴稠油开采保温管和国外温泉井保温管技术,研制的保温管导热系数<0.02;保温管的抗外挤、抗内压、连接强度等指标可以满足地热中深井开采设计要求。实现自主知识产权和国产化制造,保证了地热能的高效利用,为今后开发超深井和干热岩用隔热钻杆积累了有价值的技术数据。
中文关键词:地热能  保温钢管  气凝胶  井下保温管  导热系数
 
Design and Application of BLD Series High Efficient Insulation Steel PipeFor Geothermal Well
Abstract:In order to aim to have CO2 emissions peak before 2030 and achieve carbon neutrality before 2060, our new energy industry has entered a new state of carbon reduction and energy saving from clean and efficient time. As a clean, zero-carbon energy source in geothermal energy field, we are faced with unprecedented development opportunities. For the scientific, efficient, and high-quality utilization and development of geothermal energy, it is necessary to develop high-efficiency insulation steel pipes for geothermal wells. The thermal conductivity of the developed insulation pipe is less than 0.02. The high anti-collapse, high anti-burst, and connection strength of the insulation pipe can meet the design requirements of medium and deep geothermal wells. It will realize independent intellectual property rights, localized manufacturing, and reduce the costs by more than 30%, and have excellent economic efficiency.
keywords:geothermal, insulation steel pipe, aerogel, underground insulation steel pipe thermal conductivity
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