气体开采工艺要素对高气体高峰区气体迁移法的影响
Lei Wang1,2, Jiangtao Li1,2, Jiuyuan Fan1,2
1School of Emergency Management and Safety Engineering, North China University of Science and Technology, Tangshan, Hebei 063210, China.
ACS omega
|February 3, 2025
概括
气体开采技术对于矿山安全至关重要. 数字模拟表明,埋藏管道的提取可以增加气体度,而优化高层钻井的提取是有效的,但可能需要采取补充措施来确保完全的安全.
科学领域:
- 采矿工程 采矿工程 采矿工程
- 地质技术工程 地质技术工程
- 安全科学安全科学 安全科学
背景情况:
- 在GOAF中堆积的气体带来了严重的爆炸风险,威胁到矿山生产安全.
- 在工作表面角落中的高气体度需要有效的气体管理策略.
研究的目的:
- 调查天然气开采技术对天然气迁移在GOAF地区的影响.
- 分析埋藏管道和高层钻孔开采在高气体坑洞环境中的应用效率.
主要方法:
- 建立基于实验参数的Gob模型.
- 使用Fluent软件进行数值模拟,分析天然气提取技术.
- 评估埋藏管道开采和高层钻孔开采的性能.
主要成果:
- 埋藏管道提取可以在冲击和俯冲沿线增加气体度,但在提取点和上角附近减少.
- 确定了最佳的埋藏管道提取参数:长30米,直径0.3米,流量80 m3/min.
- 高层钻井开采的最佳参数:垂直距离18.5米,水平距离10米,间距8米;然而,上角气体度仍然很高 (1.42%).
结论:
- 优化埋藏管道提取参数可以改善气体管理.
- 高层钻井开采需要补充上角气体开采,以确保完全的安全.
- 该研究为选择和优化高气体海湾的天然气开采技术提供了理论基础.
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