综放工作面高压注水压裂放煤新工艺应用研究
孙洁
（山西省煤炭建设监理有限公司，山西 太原 030012）
摘要： 以山西省神磊煤矿150202 工作面为研究对象， 研究了对两端头煤层进行高压注水压裂弱化放煤新工艺， 详细
阐述了高压注水压裂工艺技术方案和施工工艺流程。对两端头坚硬顶板施工钻孔， 注入高压水弱化坚硬顶板煤层， 提高
煤层冒落性。实践结果表明， 对两端头煤层进行水力压裂弱化， 多回收煤炭资源约1.5 × 10⁴ t， 多创利润1.4 × 10⁶ 元， 经
济效益显著。
关键词： 综放工作面； 高压注水压裂； 放煤； 煤炭回收率
中图分类号： TD327.2      文献标志码： A      文章编号： 2095-0802-(2023)11-0213-03
Application of New Coal Caving Technology of High-pressure Water Injection
Fracturing in Fully Mechanized Caving Face
SUN Jie
(Shanxi Coal Construction Supervision Co., Ltd., Taiyuan 030012, Shanxi, China)
Abstract: Taking the 150202 working face of Shenlei Coal Mine in Shanxi Province as the research object, this paper studied the
new technology of high-pressure water injection fracturing weakening for coal caving for coal seams at both ends, and expounded
the technical scheme and process flow of high-pressure water injection fracturing in detail. Drill holes for the construction of hard
roof at both ends, inject high-pressure water to weaken the hard roof coal seam, and improve the coal seam caving ability. The
practical results show that the hydraulic fracturing of the two ends of the coal seam can recover about 1.5 × 10⁴ t of coal resources
and generate 1.4 × 10⁶ yuan of profits, with significant economic benefits.
Key words: fully mechanized caving face; high-pressure water injection fracturing; coal caving; coal recovery rate