Huainan coalfield is rich in coalbed methane resources and has large - scale coalmine methane drainage.
淮南煤田煤层气资源丰富，煤层气抽采具备较大规模。
High position bores and elevation bores methane drainage technique can prevent gas problem successfully.
采用高位钻孔和仰角钻孔抽放瓦斯技术，有效地防止了瓦斯超限。
The result shows that it is a very good path to improve methane drainage effect by using the way and deserves to be popularized and applied.
试验结果表明，该方案明显提高了低透性煤层的瓦斯抽放效果。
This experiment bases on different permeability in different directions of coal seam cleats. To arrange methane drainage direction the directions vertical and parallel to face cleat are adopted.
根据煤层割理渗透率的各向异性，采用垂直面割理和平行面割理两个方向布置钻孔抽放煤层气。
Desorption of methane gas is controlled by the static pressure of formation water. Drainage of formation water provides pressure difference and space for gas desorption.
地层水的静水压力控制了甲烷气的解吸作用，地层水的排出可为气体的解吸提供压力差和空间。
The lowest volume fraction of methane in mine drainage gas used as town gas is discussed to fully utilize mine drainage gas.
探讨了作为城镇燃气的矿井气中甲烷的最低体积分数，以便于更充分地利用矿井气。
At present, the technique of coal-bed methane surface mine and gas drainage was mature, so it was feasible for coal-bed methane development and utilization in Sichuan Province.
目前国内外煤层气地面开采技术、井下瓦斯抽放技术均已成熟，四川煤层气开发利用是可行的。
The recovery ratio, recovered percent, drainage range and the production forecast of single coal-bed methane (CBM) well were discussed by using the production data of Zaoyuan well pattern.
利用试验井网的生产资料，探讨了煤层气的采收率、采出程度、降压范围和单井产能预测。
CBM well group drainage and mining testing data indicated that the coupling of methane content, fissure development extent and hydrodynamic condition is necessary terms to ensure stead...
煤层气井组排采试验资料表明，甲烷含量、裂隙发育程度、水动力条件三者的耦合是保证煤层气井稳定高产的充分必要条件。
CBM well group drainage and mining testing data indicated that the coupling of methane content, fissure development extent and hydrodynamic condition is necessary terms to ensure stead...
煤层气井组排采试验资料表明，甲烷含量、裂隙发育程度、水动力条件三者的耦合是保证煤层气井稳定高产的充分必要条件。
应用推荐