دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: the string of casing set in a well after the surface casing but before production casing is set to keep the hole from caving and to seal off troublesome formations. In deep wells, one or more intermediate strings may be required. Sometimes called protection casing.

n: A length of pipe used below the surface casing string, but before the production casing is run, to isolate one or more zones of the openhole to enable deepening of the well. There may be several intermediate casing strings. Depending on well conditions, t

n: also called protection casing or technical casing, it is refer to the casing that between the surface casing and production casing, which can content the limitation of the complex layer and the drilling technic.

n: a string of casing set deeper than the surface casing to protect a section of the hole and to permit drilling to a greater depth. Sometimes called intermediate casing string.

n: an intermediate string of casing that is run to case off any troublesome zones.