A method of localizing the source of a particulate produced with a fluid
through a wellbore is provided, the method comprising the steps of: (A)
providing marking composition comprising at least one marker that: (i) is
capable of binding with a particulate; and (ii) has a detectable property
distinguishable from the particulate; (B) introducing the marking
composition: (i) through a wellbore; and (ii) into contact with at least
a portion of a subterranean formation penetrated by the wellbore; (C)
obtaining a fluid produced through the wellbore; and (D) analyzing a
particulate produced with the produced fluid for the presence of the
marker.