瓦斯含量法预测突出危险新技术的试验研究 张文冰123,周天才23,文天书3,赵敏敏3 (1.中国矿业大学(北京)资源与安全工程学院,北京100083:2山东科技大学灾害预测与控制重点 实验室,山东青岛266510;3.煤炭科学研究总院重庆分院,重庆400037) 摘要:运用自制的可视化实验设备,进行了表面活性剂吐温(T40,1×103mo/、T40,2×103 mo几L、T40/T80(1:1),1×10mo八)在瓦斯水合过程中影响研究,结合煤层高压注水中添 加表面活性剂R1-89的现场研究,分析了表面活性剂在瓦斯水合三阶段的主要作用。认为在煤 层注水阶段表面活性剂的加入降低了液体表面张力和注水压力,使注水速度加快,煤体得到均 匀润湿;在水合物诱导阶段表面活性剂的胶柬化増加了瓦斯气体的溶解度,促进了气体在溶液 中过饱和,推动了水合物晶核生长,缩短了诱导时间;在水合物生长阶段表面活性剂胶柬对溶 于其中的气体分子和吸附于其周围的水分子的束缚作用,相当于降低了体系的温度,改变了水 合物生成热力学条件。 关健词:瓦斯含量;突出预测:敏感性;预测深度 中图分类号:TPO288 文獻标识码:A Experimental study on the new technology of outburst danger prediction by gas content ZHANG Wen-bing, 23, ZoU Tian-cai2, 3, WEN Tian-shu, ZHAO Min-min (1. School of Resource and Safery Engineering. China Universiry of Mining and Technology(Beijing), Beijing 100083, China: 2 College of Resources and Emironmental Engineering, Shandong Universiry d Science and Technolog Qingdao 271019, China: 3. Chongqing Branch, China Cod Research Institute, Chongqing 400037, China) Abstract: Using self-developed visible experimental installation, the influences of surfactant Tween(T40 1x10-mol/L; T40, 2x10-'mol/L, T40/T80(1: 1),1x10-'molL) on the process of gas hydration were studied Combined with the field study of adding surfactant RI-89 for coal seam water infusion with high pressure, the essential roles of surfactant in three stages of gas hydration were analyzed. The results indicate that in the stage of coal seam water infusion, the surfactant decreases the surface tension of liquid and the pressure of water infusion, quickens the rate of water infusion, and coal is dabbled uniformly; in the stage of gas hydrate induction, the micelle agglomeration of surfactant can increase the solubility of gas, accelerate the supersaturation of gas in solution, prompt the formation of crystal nucleus of gas hydrate, and the induction time is shortened; in the stage of gas hydrate growth, the binding effect of surfactant micelle on gas molecule dissolved in it and water molecule absorbed around it is equivalent to the reduction of systems' temperature, so the thermodynamic conditions of gas hydrate formation are changed 收稿日期:X0-XX-XX 基金项目:X0000000X基金资助项目(项目编号) 作者简介:X0X(出生年-),性别,X0X人籍贯),职称或职位。Te:x-X00XXX,Emai:X0x@XX 通讯作者:X(出生年),性别,XX人籍贯),职称或职位。Tel:X0-X00XXX, E-mail:xox@x1 瓦斯含量法预测突出危险新技术的试验研究* 张文冰 1,2,3，周天才 2,3，文天书 3，赵敏敏 2,3 （1.中国矿业大学（北京） 资源与安全工程学院，北京 100083；2.山东科技大学 灾害预测与控制重点 实验室，山东 青岛 266510；3.煤炭科学研究总院 重庆分院，重庆 400037 ） 摘 要：运用自制的可视化实验设备，进行了表面活性剂吐温（T40，1×10-3 mol/L、T40，2×10-3 mol/L、T40/T80（1:1），1×10-3 mol/L）在瓦斯水合过程中影响研究，结合煤层高压注水中添 加表面活性剂 R1-89 的现场研究，分析了表面活性剂在瓦斯水合三阶段的主要作用。认为在煤 层注水阶段表面活性剂的加入降低了液体表面张力和注水压力，使注水速度加快，煤体得到均 匀润湿；在水合物诱导阶段表面活性剂的胶束化增加了瓦斯气体的溶解度，促进了气体在溶液 中过饱和，推动了水合物晶核生长，缩短了诱导时间；在水合物生长阶段表面活性剂胶束对溶 于其中的气体分子和吸附于其周围的水分子的束缚作用，相当于降低了体系的温度，改变了水 合物生成热力学条件。 关健词：瓦斯含量；突出预测；敏感性；预测深度 中图分类号：TP 028.8 文献标识码：A Experimental study on the new technology of outburst danger prediction by gas content ZHANG Wen-bing1,2,3，ZOU Tian-cai2,3，WEN Tian-shu3，ZHAO Min-min3 (1.School of Resource and Safety Engineering, China University of Mining and Technology(Beijing),Beijing 100083,China; 2.College of Resources and Environmental Engineering, Shandong University of Science and Technology, Qingdao 271019,China; 3.Chongqing Branch, China Coal Research Institute, Chongqing 400037,China) Abstract: Using self-developed visible experimental installation, the influences of surfactant Tween (T40, 1×10-3mol/L; T40, 2×10-3mol/L; T40/T80(1:1), 1×10-3mol/L) on the process of gas hydration were studied. Combined with the field study of adding surfactant R1-89 for coal seam water infusion with high pressure, the essential roles of surfactant in three stages of gas hydration were analyzed. The results indicate that in the stage of coal seam water infusion, the surfactant decreases the surface tension of liquid and the pressure of water infusion, quickens the rate of water infusion, and coal is dabbled uniformly; in the stage of gas hydrate induction, the micelle agglomeration of surfactant can increase the solubility of gas, accelerate the supersaturation of gas in solution, prompt the formation of crystal nucleus of gas hydrate, and the induction time is shortened; in the stage of gas hydrate growth, the binding effect of surfactant micelle on gas molecule dissolved in it and water molecule absorbed around it is equivalent to the reduction of systems’ temperature, so the thermodynamic conditions of gas hydrate formation are changed. 收稿日期：XXXX－XX－XX 基金项目：XXXXXXXXXXX 基金资助项目（项目编号）；… 作者简介：XXX（出生年－），性别，XXXX 人(籍贯)，职称或职位。Tel：XXX－XXXXXXX，E-mail: XXXX@XXX 通讯作者：XXX（出生年－），性别，XXXX 人(籍贯)，职称或职位。Tel：XXX－XXXXXXX，E-mail: XXXX@XXX