Water-blocking Oil-permeable Proppant

Water-blocking oil-permeable proppant refers to the proppant that would block water in a water-containing oil layer under hyposmolality situation. The proppant is composed of regular ceramsite with a hydrophobic & oleophylic resin film coating the surface of the ceramsite, it can be low density, intermediate density and also high density.  Water-blocking property can significantly raise oil-water ratio, improve conductivity of proppant, and enhance the production of crude oil.