• 中文核心期刊
  • 中国科技核心期刊
  • RCCSE中国核心学术期刊

碎软煤层顶板岩层水平井大尺寸穿层压裂物理模拟试验研究

巫修平

巫修平. 碎软煤层顶板岩层水平井大尺寸穿层压裂物理模拟试验研究[J]. 煤矿安全, 2017, 48(11): 5-8.
引用本文: 巫修平. 碎软煤层顶板岩层水平井大尺寸穿层压裂物理模拟试验研究[J]. 煤矿安全, 2017, 48(11): 5-8.
WU Xiuping. Study on Physical Simulation Test of Cross-strata Hydraulic Fracturing for Big Size Horizontal Well in Roof Strata of Broken Soft Coal Seam[J]. Safety in Coal Mines, 2017, 48(11): 5-8.
Citation: WU Xiuping. Study on Physical Simulation Test of Cross-strata Hydraulic Fracturing for Big Size Horizontal Well in Roof Strata of Broken Soft Coal Seam[J]. Safety in Coal Mines, 2017, 48(11): 5-8.

碎软煤层顶板岩层水平井大尺寸穿层压裂物理模拟试验研究

Study on Physical Simulation Test of Cross-strata Hydraulic Fracturing for Big Size Horizontal Well in Roof Strata of Broken Soft Coal Seam

  • 摘要: 基于煤层顶板岩层水平井分段压裂开发煤层气的技术设想,通过构建表征煤层顶板水平井压裂相似物理模型,开展了多组围岩条件下的大尺寸真三轴压裂物理模拟试验,研究顶板水平井裂缝的扩展特征,并着重对裂缝垂向扩展穿层进入煤层的可能性进行研究,试验结果显示置于煤层顶板岩石中的水平井,在布置合理的与煤层顶界的垂距和一定的施工排量条件下,裂缝均能向下穿层扩展沟通煤层,这为煤层顶板岩层水平井分段压裂开发煤层气技术的可行性提供了试验佐证,并对煤层顶板水平井层位的优选具有一定的指导意义。
    Abstract: Based on the technical assumption of multi-stage hydraulic fracturing for horizontal well in coal seam roof strata applied in coalbed methane development, a similar physical model for characterizing fracturing horizontal well in coal seam roof strata is constructed. The propagation characteristics of fractures generated from horizontal wells in coal seam roof strata through the multiple experiments of the real three axle fracturing physical simulation under the condition of surrounding stress, and especially, the possibility of fractures that propagate into coal seam were researched in detail. The results shows that fractures initiated from horizontal wells in coal seam roof strata can grow towards and into coal seam under some conditions such as reasonable placement of horizontal well in coal seam roof strata and a certain pumping rate. The simulation experiment research provides a laboratory demonstration for practicability of the technology of multi-stage hydraulic fracturing and horizontal wells in roof strata of broken soft and low permeable coal seam, and provides guidance for the optimization of horizontal well placement in coal roof strata.
  • [1] 杨陆武,孙茂远.中国煤层气藏的特殊性及其开发技术要求[J].天然气工业,2001,21(6):18-19.
    [2] 俞启香,周世宁.我国煤矿瓦斯抽放及21世纪展望[C]//21世纪中国煤炭工业第五次全国会员代表大会暨学术研讨会论文集.北京:中国矿业大学(北京),2001:7.
    [3] 汤达祯,秦勇,胡爱梅.煤层气地质研究进展与趋势[J].石油实验地质,2003,25(6):644-647.
    [4] 袁亮,柏发松.煤与瓦斯突出防治技术应用研究[J].西安科技学院学报,2000(S1):17-22.
    [5] 姜波,秦勇,琚宜文,等.构造煤化学结构演化与瓦斯特性耦合机理[J].地学前缘,2009,16(2):262-271.
    [6] 闫江伟,张小兵,张子敏.煤与瓦斯突出地质控制机理探讨[J].煤炭学报,2013,38(7):1174-1178.
    [7] 胡千庭,蒋时才.我国煤矿瓦斯灾害防治对策[J].矿业安全与环保,2000,27(1):1-4.
    [8] 程远平,付建华,俞启香.中国煤矿瓦斯抽采技术的发展[J].采矿与安全工程学报,2009,26(2):127-139.
    [9] 陈国新.煤矿瓦斯抽放技术与分析[J].煤矿安全,1995,26(5):2-6.
    [10] 刘泽功.煤矿抽放瓦斯技术现状及展望[J].中国煤炭,2000,26(8):12-14.
    [11] 史明义,金衍,陈勉.水平井水力裂缝延伸物理模拟试验研究[J].石油天然气学报,2008,30(3):130.
    [12] 柳贡慧,庞飞,陈治喜.水力压裂模拟实验中的相似准则[J].石油大学学报(自然科学版),2000,24(5):45-48.
    [13] 侯振坤,杨春和,王磊,等.大尺寸真三轴页岩水平井水力压裂物理模拟试验与裂缝延伸规律分析[J].岩土力学,2016,37(2):407-414.
计量
  • 文章访问数:  188
  • HTML全文浏览量:  0
  • PDF下载量:  0
  • 被引次数: 0
出版历程
  • 发布日期:  2017-11-19

目录

    /

    返回文章
    返回