山东济宁许厂煤矿下组煤瓦斯与二氧化碳开发利用前景及存在的问题

许厂煤矿下组煤中蕴藏着较为丰富的瓦斯、二氧化碳资源。下组煤位于瓦斯风化带内,含瓦斯、二氧化碳和氮气等气体,瓦斯含量与埋藏深度呈正相关关系,主要存在低含量瓦斯、二氧化碳抽采率、二氧化碳资源化转换等技术方面的问题。从国家相关优惠政策、资源优势、煤与煤层气一体化开发技术、近水平长钻孔定向钻进技术、煤层压裂造缝技术、煤层注气增产技术和瓦斯、二氧化碳气体提纯技术等关键技术的发展程度,结合煤矿的下组煤层的开采方案,认为许厂煤矿有着较好的煤炭与瓦斯、二氧化碳一体化开发利用前景。

Development and Utilization Prospect and Existing Problems of Gas and Carbon Dioxide in Xuchang Coal Mine in Jining City of Shandong Province

There are abundant gas and carbon dioxide resources in Xuchang coal mine. According to characteristics of gas geology, it is regarded that the lower group coal is located in the weathering zone. It includes gas, carbon dioxide and nitrogen gas, and gas content and buried depth are positively correlated. The existing problems are low content of gas, carbon dioxide extraction rate, the conversion of carbon dioxide and other technical aspects. From national related preferential policies, resource advantages, coal and coal seam gas integration development technology, near horizontal drilling technology, coal seam fracturing technology, gas injection production technology and gas, carbon dioxide gas purification technology and other key technologies, combining with coal mining plan and other aspects of coal mine, it is concluded that there is coal and gas, carbon dioxide integrated development and utilization prospects.