化乐井田地面井压裂地质选井选层及地面瓦斯抽采实践  

Geological well and layer selection and surface gas drainage practice of surface well fracturing in Huale mine field

作　　者：龙海岑 马曙 LONG Haicen;MA Shu(Guizhou Wujiang Energy Group Co.,Ltd,Guiyang,550081,China;School of Safety Engineering,China University of Mining&Technology,Xuzhou,221116,China;Guizhou Energy Industry Research Institute Co.,Ltd,Guiyang,550025,China)

机构地区：[1]贵州乌江能源集团有限责任公司,贵州贵阳550081 [2]中国矿业大学安全工程学院,江苏徐州221116 [3]贵州能源产业研究院有限公司,贵州贵阳550025

出　　处：《华北科技学院学报》2022年第4期94-105,共12页Journal of North China Institute of Science and Technology

基　　金：贵州省科技计划项目黔科合战略找矿([2022]ZD001);黔科合基础项目([2019]1189);黔科合支撑项目([2021]230);贵阳市科技计划项目筑科合同([2021]45-2)。

摘　　要：贵州煤层气(煤矿瓦斯)资源丰富,同时也面临煤矿瓦斯灾害威胁大、治理难度大等问题,本文以“比德-牛场”区块为例,结合前期的勘探成果及天然气能投公司开采数据,立足于资源的可采性评价,开展影响煤层气可采性的主控因素、多煤层叠置储层精细识别研究,系统分析煤层的分布与稳定性、煤层气的保存条件与含气性、煤层的渗透性规律等,开展多层合采产能影响因素的敏感性分析,最终优选出瓦斯综合治理的压裂位置与层位等关键参数,为后续压裂工作奠定基础。现场实践表明,该区块瓦斯综合治理压裂地质选井选层合理,达到了预期效果,也为同类型工作开展提供了思路。The state is rich in coalbed methane(coal mine gas)resources in Guizhou.At the same time,it is also faced with the problems of great threat of coal mine gas disaster,great difficulty in underground gas control and imbalance of drainage and mining.Taking‘Bide-Niuchang’block as an example,combined with the early exploration results and the mining data of natural gas energy investment company,based on the evaluation of resource recoverability,this paper carries out the research on the main controlling factors affecting coalbed methane recoverability and the fine identification of multi coal seam superimposed reservoirs,and systematically analyzes the distribution and stability of coal seam,the preservation conditions and gas content of coalbed methane,the permeability law of coal seam,carries out the sensitivity analysis of the influencing factors of multi-layer combined production capacity,and finally optimize the key parameters such as fracturing position and horizon of gas comprehensive treatment,so as to lay a foundation for the follow-up fracturing work.The field practice shows that the comprehensive treatment of gas in this block,the geological well and layer selection of fracturing are reasonable,which achieves the expected effect,and also provides ideas for the development of the same type of work.

关 键 词：瓦斯抽采 地质选井选层 影响因素 地面抽采 产能分析 

分 类 号：TD712.62[矿业工程—矿井通风与安全]