دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: see surface pipe.

n: A large-diameter, relatively low-pressure pipe string set in shallow yet competent formations for several reasons. First, the surface casing protects fresh-water aquifers onshore. Second, the surface casing provides minimal pressure integrity, and thus en

the casing string that protects the fresh water supply. It is always cemented across the water zone and usually extends to surface.