[14]李祥春,聂百胜,刘芳彬,周春山.三轴应力作用下煤体渗流规律实验[J].天然气工业,2010,06:19-21+123.
摘要：为了弄清三轴应力作用下煤体的渗流规律,运用CGMS煤层瓦斯气液相对渗透率测试系统准三轴渗透仪及恒温系统,以山西省沁水煤田阳泉固庄煤矿的煤样为例,进行了如下内容的实验研究:①煤样在相同孔隙压力不同体积应力下煤样的渗透率变化;②相同轴压和围压下不同温度下煤样的渗透率变化。实验结果表明,当孔隙压力不变时,煤体渗透率随体积应力增加呈负指数规律变小;当体积应力不变时,煤体渗透率随着温度的增加而增加。
[15]袁梅,何明华,王珍,许石青,陈博.含坚固性系数的应力-温度场中瓦斯渗流耦合模型初探[J].煤炭技术,2012,07:214-216.
摘要：文章以贵州五轮山、玉舍及响水煤矿三层坚固性系数各异的型煤为对象,利用自主研发的三轴渗透仪,进行了不同坚固性系数条件下的恒温-变平均有效应力的三轴渗流实验,实验结果表明相同实验条件坚固性系数与渗透率呈正相关关系,并服从乘幂函数分布,利用实验结论确定了有坚固性系数条件下应力-温度场中的瓦斯运动方程,并以此为基础,建立了含坚固性系数条件下应力-温度场中的瓦斯渗流模型,研究结果对探讨坚固性系数对瓦斯灾害的影响具有较大的理论价值。
[16]吕闰生,彭苏萍,徐延勇.含瓦斯煤体渗透率与煤体结构关系的实验[J].重庆大学学报,2012,07:114-118+132.
摘要：为了研究不同结构煤的渗透率差异,以焦作煤田为例,对Ⅰ～Ⅴ类结构煤进行了渗透率测试,结果表明:渗透率与不同煤体结构关系曲线近似呈正态分布,先是呈级数增大,随后呈级数减小,Ⅱ类渗透率最大,V类煤体渗透率最小,Ⅰ、Ⅳ、Ⅴ类煤体渗透率差别不大。引入渗透率变异系数、渗透率级差概念,评价得出二1煤层的非均质性、各向异性较强,而单个类型煤体均质性较好。对饱含瓦斯煤体瓦斯分布的分区分带、矿井瓦斯涌出、煤与瓦斯突出作用机理进行了解释,渗透率变化是孔裂隙的发展过程,是控制瓦斯分布、涌出、煤与瓦斯突出的主控因素。
[17]张书金.预抽条件下软、硬煤残余瓦斯含量差异性研究[D].导师：杨宏民.:河南理工大学,2011.
摘要:《防治煤与瓦斯突出规定》第四十二条要求,区域预测和效果检验一般根据煤层瓦斯参数结合瓦斯地质分析的方法进行。在现场实践中常把煤层瓦斯含量作为区域预测和效果检验指标。然而许多矿井煤层中含有一定厚度的软煤分层,在对防突措施效果检验时会出现硬煤消突而软煤未消突的现象。防突效果检验时瓦斯含量测定布置具有一定的盲目性,抽放钻孔设计时也常忽略这点。鉴于此,本文采用实验室实验的方法研究软煤和硬煤微观孔隙、渗透率的差异及不同吸附压力下两者瓦斯含量的差异;在此基础上,采用理论分析和数值模拟相结合的方法研究抽放条件下软、硬煤残余瓦斯含量的差异性。 利用压汞实验分析了软煤和硬煤孔径分布特征,结果表明软煤孔隙体积...
[18]江林华,张玉贵,张子敏,柯善斌,侯锦秀,姚军朋.构造煤特征及其判识技术展望[A]..基于瓦斯地质的煤矿瓦斯防治技术[C].:,2009:6
摘要:构造煤控制着煤与瓦斯突出灾害的发生,也制约着煤矿瓦斯治理和煤层气开发。本文研究了构造煤的结构与生烃特性、构造煤甲烷吸附解吸特征、构造煤强度与渗透性。结果表明:构造煤结构具有超前演化,伴随着超前生烃现象;构造煤具有甲烷吸附量高、解吸速度快、低强度、低渗透性的特点。提出随钻瓦斯涌出量测量、孔径测量、孔壁摄像等构造煤判识技术,准确划分煤层气开发有利区块,实现构造煤低渗富集区煤层气开发。
[19]胡国忠,王宏图,范晓刚,袁志刚.低渗透突出煤的瓦斯渗流规律研究[J].岩石力学与工程学报,2009,12:2527-2534.
摘要：为了解低渗透突出煤体的瓦斯渗流规律,利用自行研制的煤岩体三轴渗透仪,在不同轴
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压和围压条件下,对以南桐矿区矿井低渗透突出煤层的原煤而制备的试样采用稳态渗流法进行瓦斯渗流试验;比较传统的渗透率计算方法与考虑瓦斯渗流的Klinkenberg效应的渗透率拟合方法在低渗透煤体渗流试验数据处理中的差异。研究结果表明:(1)低渗透煤体中的瓦斯渗流具有显著的Klinkenberg效应;(2)对于低渗透煤体,Klinkenberg系数b值与煤体的绝对渗透率呈显著的幂函数关系,而煤体的绝对渗透率与体积应力呈显著的二次多项式函数关系;(3)Klinkenberg系数b值随着煤体绝对渗透率的降低而逐渐增大,煤体的绝对...
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