Low surface friction proppants

摘要

A proppant having low surface friction is described, which is useful in hydrocarbon recovery. Methods of making low surface friction proppants are further described, as well as uses thereof.

主权项

1. A proppant having low surface friction comprising an angle of repose of 30° or less; wherein said proppant comprises:
a) a Krumbein sphericity of at least 0.5; b) a roundness of at least 0.5; c) a particle size distribution such that the proppant has a dps from about 0.001 to about 0.3, wherein dps=(dp90−dp10)/dp50 and wherein dp10 is a particle size wherein 10% of the particles have a smaller particle size, dp50 is a median particle size wherein 50% of the particles have a smaller particle size, and dp90 is a particle size wherein 90% of the particles have a smaller particle size; d) a porosity, excluding a central void, of from about 6% to about 40%; and e) proppant pores, wherein at least 90% of the proppant pores have a pore size of from about 0.1 micron to about 10 microns and at least 80% of the proppant pores are not in contact with each other.