| The appearances of fracturing proppants?are round or ellipse, but there is still some fracturing proppants are not in these two appearances, they are in the shape of irregular gravel. The reason of different shapes of fracturing proppants is different productive technologies. The fracturing proppants have a hard shell cover it, and this hard shell is waterproof as well as protective, which can grantee the fracturing proppants get higher strength.fracturing proppants meshes are generally from 5mm to 20mm, and the maximum mesh is about 25mm.
The colors of fracturing proppants are diverse according to raw materials and productive technologies. Roasted fracturing proppants are of dark red or red ocher, while some are of grey yellow and so on. Not only the raw materials but also the productive technologies vary, so there are fracturing proppants of many colors.
Lightweight is one of the most important nature of fracturing proppants, and it is also the nature make fracturing proppants superior then traditional heavy sand. The interior structure of fracturing proppants is like honeycomb. These micro-holes are close and not connect with each other, which are why the fracturing proppants are lightweight.
After sieved by the filter screen, the fracturing proppants have been classified into different specifications, such as 20 40 mesh, 30 50 mesh, 40 70 mesh and so on. Because they are very much like sand, so many times they are called “ceramic sand” or “hydraulic fracturing sand”. They can replace the nature sand for construction and oil & gas industry. |
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