The non-blanked area of a screen describes the net unblocked area in square feet (ft²) or square meters (m²) available to permit the passage of fluid.
Conductance, measured in kilodarcies per millimeter (kD/mm), defines a Newtonian fluid’s ability to flow through a unit area of screen in a laminar flow regime under prescribed test conditions. All other factors being equal the screen with the higher conductance number should process more flow.
The D100 cut point of a screen is the particle size at which no particles will pass through the screen.
The D50 cut point of a screen is the particle size at which half of those particles reporting to the screen will pass through the screen and half will be retained.
Mesh, as it relates to a piece of woven wirecloth, is a measure of the number of holes in a linear inch (such as 100 mesh) or in a linear inch in each direction (such as 100 x 60 mesh).
API Screen Number is determined using a specific test procedure (asset out in API RP 13C).The test a specifically graded sample of Aluminum Oxide which is passed through a stack of sieves including the test sieve and mounted on a Tyler Ro-Tap®. The method determines the D100 cut point of the test screen and relates [...]