Composite particles made of a binder and filler material are provided for use in subterranean formations. The filler is finely divided mineral and optional fiber. The particles are proppants useful to prop open subterranean formation fractures. The particles are also useful for water filtration and artificial turf for sports fields. Methods of making the composite particles are also disclosed.

As partículas compostas feitas de um material da pasta e de enchimento são fornecidas para o uso em formações subterranean. O enchimento é fibra mineral e opcional finamente dividida. As partículas são proppants úteis sustentar fraturas subterranean abertas da formação. As partículas são também úteis para o filtration da água e o turf artificial para campos dos esportes. Os métodos de fazer as partículas compostas são divulgados também.

 
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