| 摘要 |
<p>Water is removed from a natural gas well by the use of nitrogen, which is produced by a non-cryogenic unit at the site of the well. A cylindrical casing is positioned over the well. A tubing, disposed within the casing, is aligned over the well bore. Nitrogen is selectively introduced into either the space between the tubing and the casing, or into the tubing, so as to displace water from within the tubing or the casing, respectively. The water is directed to a storage tank at the site of the well. Nitrogen is purged from the lines, and the well is ready to resume production.</p> |
