GRANULATED INORGANIC PARTICULATES AND THEIR USE IN OILFIELD APPLICATIONS

摘要

Disclosed herein are granulated inorganic particulate compositions exhibiting at least one property chosen from improved material handling, low dusting, easy make-down in to mineral-water slurry, and requiring less energy to produce than spray dried inorganic particulate products. In one embodiment, the granulated inorganic particulate compositions are characterized by a moisture content ranging from 2% to 60% by weight relative to the total weight of the composition, such as for example from 2% to 10% or from 30% to 50%. In another embodiment, the granulated inorganic particulate compositions have an average granule size of greater than about 10 mesh. In a further embodiment, the granulated inorganic particulate composition comprises granules of inorganic particulate that are friable when subjected to a shear force. The granulated inorganic particulate may take on any shape, ranging from and including but not limited to very angular, to sub-rounded, to approximately spherical (i.e., having a Krumbein sphericity of at least about 0.8).