Dual screen element having upper scalping screen adhered to crests of corrugated lower screen

A vibratory shaker system comprising

• a basket for mounting at least one screen for screening fluid introduced thereon,
• vibrator apparatus connected to the basket for vibrating the basket and the at least one screen,
• the at least one screen comprising;
• a base,
• a first screen assembly on the base, and
• a second screen assembly mounted on and above the first screen assembly,
• wherein the second screen assembly includes a scalping screen of a larger mesh size than a mesh size of a screen of the first screen assembly, cushion members disposed between the first and second screen assemblies,
• wherein the first and second screen assemblies each include a corrugated screen having alternating crests and valleys and the cushion members are between crests of the corrugated screen of the first screen assembly and the valleys of the corrugated screen of the second screen assembly.

A screen for a vibratory separator apparatus, the screen comprising;

• a base
• a first screen assembly on the base,
• a second screen assembly mounted on and above the first screen assembly,
• wherein the second screen assembly includes a scalping screen of a larger mesh size than a mesh size of a screen of the first screen assembly, wherein both the first and second screen assemblies have at least one corrugated screen with crests and valleys and end screen openings are defined between and at ends of the two screen assemblies, the screen further comprising
• opening plugs within the end screen openings to sealingly close off the end screen openings to fluid flow.

A vibratory shaker system comprising

• a basket for mounting at least one screen for screening fluid introduced thereon,
• vibrator apparatus connected to the basket for vibrating the basket and the at least one screen,
• the at least one screen comprising
• a base,
• a first screen assembly on the base, and
• a second screen assembly mounted on and above the first screen assembly,
• wherein the second screen assembly includes a scalping screen of a larger mesh size than a mesh size of a screen of the first screen assembly,
• wherein both the first and second screen assemblies have at least one corrugated screen with crests and valleys and end screen openings are defined between and at ends of the two screen assemblies, the screen further comprising
• opening plugs within the end screen openings to sealingly close off the end screen openings to fluid flow.