二氧化碳相变压裂技术在井筒揭煤中的应用

摘要

为解决松软低透气性煤层难以抽放的难题，采用了二氧化碳相变压裂技术，通过赵庄煤业南苏进风井揭煤中的应用，证明了该技术在煤层卸压增透中具有快速、高效、安全的优点，为二氧化碳相变压裂新技术的应用研究提供了借鉴。%To solve the difficult gas drainage in soft coal seam with low-permeability, phase transition of carbon dioxide was used in shaft coal revealing in Zhaozhuang Mine. The results prove that the technology is fast, efficient and safe in pressure relief and permeability enhancement, which could provide a reference for the application of the new fracturing with phase transition of carbon dioxide.