Introducing treating fluids into subterranean producing zones

摘要

Uniformly introducing a treating fluid into a subterranean producing zone penetrated by a well bore having perforation tunnels involves packing the perforation tunnels with a particulate solid anhydrous borate material, introducing a treating fluid into the subterranean zone by way of the tunnels, and allowing the anhydrous borate material in the tunnels to degrade and dissolve in an aqueous fluid in contact with it. Uniformly introducing a treating fluid into a subterranean producing zone penetrated by a well bore having perforation tunnels formed in it involves packing the perforation tunnels with a particulate solid anhydrous borate material which degrades and dissolves in water over time, introducing a treating fluid into the subterranean zone by way of the perforation tunnels containing the particulate solid anhydrous borate material by which the treating fluid uniformly flows into the producing zone, and allowing the particulate solid anhydrous borate material in the perforation tunnels to degrade and dissolve in an aqueous fluid in contact with it so that the aqueous fluid and produced formation fluids freely flow through the perforation tunnels into the well bore.