| 摘要 |
<p>A method and an apparatus for monitoring tubing fluid downhole in an oil or gas well. A side pocket mandrel is installed in the well tubing string at a depth at which monitoring is desired. The outer surface of the mandrel is free of apertures. Coupons of a selected material are mounted in a carrier, which is placed in the side pocket of the mandrel. Ports and passages allow tubing fluid to communicate with the coupons. The carrier is then removed from the well and the coupons are inspected.</p> |
