دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: taken on tanks that have a capacity larger than 1,000 barrels (159,000 titres) and that contain 10 feet (3 metres) or less of crude oil. One middle spot sample should be taken as near the centre of the vertical column of oil as possible.

n: in casings of oil layer, people lower two or more column of oil tube volume to explore different pressure or performance oil layer. The lower part of casing isolated by packer.