COMPOUND CLUSTER PLACEMENT IN FRACTURES

摘要

Proppant cluster placement in fractures with foamed carrying fluid. A formation treatment method includes injecting a treatment fluid stage, having a particulate-containing substage containing a self-agglomerating solid composition and a foamed carrying fluid, above a fracturing pressure, and alternating pulses of a pumping parameter to transform the self-agglomerating composition into a channelized solids pack, and closing the fracture. Also disclosed are methods of modeling a fracture treatment interval for such a method, and methods of treatment and systems to treat with such a treatment fluid stage, wherein solid particulate-rich substages are larger than the solid particulate-lean substages to form particulate-rich island regions, an interconnected network of open channel regions between the island regions and the island regions are channelized to form particulate clusters within the island regions separated from adjacent particulate clusters by open voids in the island regions.