摘要
通过现场地质调查、取样、测试分析,研究了老石山隧道天然气来源与分布特征。研究认为龙泉寺断裂为天然气向上运移通道,志留系黑色页岩为生油生气层,而砂岩和灰岩则是良好储层。综合判断老石山隧道为高瓦斯隧道,其中里程DK717+210～DK718+900为高瓦斯工区,其余区段为低瓦斯工区。
Through field geological survey, sampling and testing analysis, we studied the source and distribution characteristics of natural gas in the Old Rock Hill tunnel. The results showed that the Longquan Temple Fracture is the upward migrating channel of natural gas. Silurian black shales is the oil generation layer, while Sandstone and Limestone are the good reservoir. According to comprehensive judgments, the Old Rock Hill tunnel is a high-gas tunnel, with the mileage DK717 ＋210 - DK718 ＋900 as high gas work area, while the remaining section as low gas work area.
出处
《中国西部科技》
2013年第6期52-54,共3页
Science and Technology of West China
关键词
浅层天然气
高瓦斯隧道
云桂铁路
Shallow Natural Gas
High Gas Tunnel
Yun-Gui Railway
