寺河井田穿煤柱下组煤煤层气水平井钻井技术研究
苏善博, 张培河, 李林, 等
Research on drilling technology of CBM horizontal wells through the coal wedge lower coal group in the Sihe minefield
煤炭工程 . 2023, (3): 78 -83 .  DOI: 10.11799/ce202303015