Wellsite Screening System for Proppants and Methods of Using Same

A mobile system for wet screening of proppant at a wellsite, comprising:

• a trailer suitable for towing upon roadways to the wellsite, the trailer having an inclined rail system extending upward and away from a trailer deck at one end toward a second end at a predetermined height above the trailer deck;
• a wet screening component comprising a support structure having a rail system on a lower surface thereof and structured for sliding engagement with the trailer rail system, the wet screening component further comprising
• a proppant screening assembly having an inlet area, a discharge area, and a screen having a plurality of openings of predetermined size and shape through which fluid and proppant smaller than a first size may pass, and which prevents particles larger than the first size from passing through the openings;
• a proppant feed box having an opening through which proppant can be received and an inlet through which fluid can be received for creating a proppant slurry in the feed box, a proppant slurry discharge disposed above the inlet area, the proppant feed box separate from and not coupled to the proppant screening assembly;
• at least one fluid spray system disposed above the screen to supply fluid to the screen to facilitate wet screening of proppant;
• a frac slurry collection bin disposed relative to the screen to collect a frac slurry of proppant and fluid that has passed through the screen and having a collection bin outlet for discharging the frac slurry from the collection bin;
• wherein the wet screening component is located along the rails in a transportation position establishing a minimum overall height of the wet screening component from the trailer deck;
• and
• wherein the wet screening component is moved along the rails to an operating position establishing a predetermined height of the bin outlet from the trailer deck;
• a frac slurry conduit coupled to the collection bin outlet when the wet screening component is in the operating position, and which passes frac slurry from the collection bin to a frac fluid blending system.