subterranean formations to accomplish a number of purposes, one of which is to increase the permeability of the formation. The increase in formation permeability normally results in an increase in the recovery of hydrocarbons from the formation.
In acidizing treatments, aqueous acidic solutions are introduced into the subterranean formation under pressure so that the acidic solution flows into the pore spaces of the formation. The acidic solution reacts with acid-soluble materials contained in the formation which results in an increase in the size of the pore spaces and an increase in the permeability of the formation. Similarly, in fracture-acidizing treatments, one or more fractures are produced in the formation and the acidic solution is introduced into the fracture to etch flow channels in the fracture face. The acid alsoComing off an impressive victory in Vancouver, the Reds travel east to Mapfre Stadium to take on the Columbus Crew. At stake is more than just a result for both clubs. Outside of the natural distaste for their other Canadian rivals in Montreal and Vancouver, Toronto FC’s biggest rivals since 2008 have been the Crew. While points and placement in the Eastern Conference standings are always top of mind, the two also compete for bragging rights and the Trillium Cup.

Both Ohio and Ontario share the trillium as their provincial and state flower which gives the Trillium Cup its name and is awarded to the club who earns the most points in league matches between the two. Columbus won the Trillium Cup in the early years of its existence,