摘要
利用RFPA2D-Flow数值模拟软件对导向孔的导向作用效果进行模拟研究,结合压裂地点煤层具体条件,提出1个中心压裂孔,周围4个导向卸压孔的多方位定向压裂技术,以求水力压裂的效益最大化。现场试验后,试验结果与数值模拟结果基本吻合,验证了RFPA数值模拟的可靠性,同时压裂后钻孔的瓦斯抽采浓度与纯量都有显著的提高,该技术可以为今后实施水力压裂提供重要的参考。
Simulated the effect of directional drilling by RFPA2D-Flow,combined with condition of coal seam,devised a hydraulic fracturing scheme with one hydraulic drilling and four directional drillings, in order to maximize the benefits of hydraulic fracturing. The test results are closed to the study by numerical simulating. So RFPA is reasonable and reliable, could provide important guidances for hydraulic fracturing. Meanwhile, after fracturing the gas drainage concentration and scalar of boreholes improved significantly.
出处
《煤炭技术》
北大核心
2015年第9期160-162,共3页
Coal Technology
基金
贵州省科学技术基金项目(黔科合J字LKLS[2013]03号)
贵州省教育厅重点科研项目(黔教高发[2011]278号)
关键词
水力压裂
定向作用
多方位
数值模拟
现场应用
hydraulic fracturing
directional effect
multi aspects
numerical simulation
field application
