通过试验结合理论分析，对采自寺河煤矿3#煤煤的物质组成和孔隙结构分析，在无机岩润湿性测定的基础上对煤的润湿性进行测定，采用了部分润湿剂和润湿反转剂来判定其对煤润湿性的影响。通过对镜煤、暗煤润湿性的测定初步确定了宏观煤岩组分与煤润湿性的关系；对不同含水率煤样进行CH4的等温吸附/解吸实验对含水率不同的煤样解吸特征、煤层气解吸率与采收率、热力学特征进行分析，并对寺河区块三口煤层气直井的排采曲线分段，设定煤储层水力参数，分析产水与产气之间关系，以寺河1号井排采数据为模板，讨论高阶煤地区煤层气井合理的排采工作制度。 结果表明，寺河区块3#无烟煤储层，煤岩组分呈高镜质组、低惰质组、含少量粘土矿物，孔隙度小，显微煤岩组分中镜煤较暗煤孔隙度高，原生结构煤区镜煤条带有利于甲烷的流通，暗煤条带利于甲烷吸附储集；寺河3#煤润湿性较差，镜煤比暗煤好；6501、JFC和洗衣粉溶液作为润湿剂利于煤样对水分子的吸附，g502溶液作为润湿反转剂利于疏水；寺河3#煤水分含量越高对甲烷吸附能力越弱；含水率越低，其理论解吸率和理论采收率越高；寺河煤层气直井的日产气量/累计产气量和日产水量/累计产水量均符合e的负指数衰减关系。模拟计算得出日产水为2.5 m3/d时产气量远远大于日产水为1.8m3/d时产气量。在煤储层添加润湿反转剂有利于脱水，提高煤储层的疏水性，防止速敏和应敏效应的同时适当加大排水强度有利于煤层气解吸与产出。

Through the experiments combined with theoretical analysis, the impacts of coal material composition and pore structure on coal wettability are predicted through partial wetting agents and reverse wetting agents when material composition and pore structure analysis are conducted for the 3# coal collected from Sihe coal mine and the wettability of the coal is measured based on the measurement of inorganic rock wettability. The connection between the macro coal petrography composition and coal wettability is preliminarily identified by means of the measurement of vitrain and durain wettability; meanwhile, the desorption features, coalbed methane desorption ration & recovery ration and thermodynamic features are analyzed for the coal samples with various moisture contents through the CH4 isothermal adsorption and desorption experiments for the coal samples with various moisture contents; furthermore, proper gas production system is discussed for the coalbed gas in high-order coal areas based on the No. 1 well gas production data in Sihe as the subsection of gas production curve is done for three CBM vertical wells in Sihe and the hydraulic parameters in coal reservoir is set to analyze the connection of water production and gas production. The results show as follows: the coal petrography compositions of 3# anthracite reservoir in Sihe present high vitrinite, low inertinite and minerals with small amount of clay; also it presents the low porosity - the porosity of vitrain is higher than that of vitrain - and that vitrain band is beneficial for the CH4 circulation in primary- structured coal areas while the durain band is good for the CH4 adsorption accumulation; 3# coal in Sihe has a poor wettability and the vitrain has a relatively rich wettability; 6501, JFC and laundry powder are used as wetting agents in favor of coal adsorption of water molecules while g502 solution is as a reverse wetting agent in favor of a hydrone reversed; the 3# coal in Sihe with rich moisture contents has a weak adsorption of CH4; the coal with poorer moisture content has a higher theoretical desorption ration and gas production ration; and it conforms to the E negative exponential attenuation for the daily gas production/cumulative gas production & daily water production/cumulative water production for vertical wells in Sihe coalbed methane. Analog calculation shows that the gas production at 2.5 m3/d water production is far higher than that at 1.8m3/d. Adding reverse wettability agents in coal reservoir is in favor of dehydration to increase the hydrophobicity of coal reservoir; it helps to prevent velocity sensitive & stress sensitivity as well as to appropriately increase the drainage intensity in favor of coalbed methane desorption and output.