دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a valve operated by tubing rotation that is used to shut off formation pressure above a packer, thus testing all connections from the packer to the tree. tubing test string n: a string of tubing run in a well for a production test in which a well test surface package is used. A tubing test string is similar to a normal tubing string except that it may contain special valves and other tools needed for the well test.