摘要
叙述了研究区矿井概况,研究了采空井井身结构,分析了井身结构优化效果,指出,三开优化井身结构可有效封堵含水层,从而解决井眼坍塌堵井的问题,保证了井身结构的稳定,同时在钻遇采空区报废井时,可在此井眼基础上过采空区钻井,通过此井身结构的改造,有效地防止井眼浪费。
This paper described the general situation of mine in the study area, studied wellbore structure of mined-out well, analyzed optimizing effect of wellbore structure, and pointed out that ＂three-opening＂ optimization of well bore structure can effectively block the aquifer to solve the problem of well clogging caused by borehole collapse, ensure the stability of the wellbore structure, pass through well drilling mined-out area on the basis of borebole when encountered abandoned well in mined-out area in drilling, and the transformation of well bore structure can effectively prevent the waste of borehole.
出处
《能源与节能》
2016年第2期97-99,共3页
Energy and Energy Conservation
基金
2014年度山西煤基重点科技攻关项目(MQ2014-12)
关键词
采空区
煤层气
井身结构
地面抽采
mined-out area
CBM
wellbore structure
ground pumping
