主题：河中兄弟有没有懂煤层气采矿的？ -- 倥偬飞人
家园 河中兄弟有没有懂煤层气采矿的？ 这个公司有个新技术，号称可以低成本解决煤层气开采过程中的地下水问题，可行吗？
有答复者一律花谢！
家园 It's possible fundamentally Downwell separator should be installed too, that kind of technologies has been used widely, such as sand re-injection in heavy oil cold production, it is not new.
家园 thanks, but more... why are you talking about sand re-injection? Does that have anything to do with the water problem? It appears to me this patented technology is about to keep water from pumping out of the well while you get the CBM gas out.
家园 the water has to be produced The water has to be produced first in order to deplete tthe formation pressure such that the absorpted CBM can be desorbed from the surface of coal particles.
Therefore the produced water has to be treated before being disposed environmentally friendly or re-injected into separate aquifers.
家园 Exactly This new technology seems to target this water problem by diverting the water from CBM wells into separate aquifers instead of getting it onto the surface. They claim this is a patented technology which cost much less. I am just wondering whether that's credible.
Some surprise:
恭喜：意外获得【西西河通宝】一枚鲜花已经成功送出
家园 我们国家不大可能 我们的矿道式开采是要人下去的，就不可能用空气排挤地下水