دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: the insoluble abrasive solids contents of a drilling fluid rejected by a 200-mesh screen. Usually expressed as the percentage bulk volume of sand in a drilling fluid. This test is an elementary type in that the retained solids are not necessarily silica and may not be altogether abrasive. For additional information concerning the kinds of solids retained on the 200-mesh screen, more specific tests would be required. See mesh.

n: The percentage of sand that cannt through the screen of 200 eye in the drilling fluid.

A deposit of heavy oil, usually with API gravity less than about 18o. May have sand content of 50%.