process for treating a sandstone formation, fluid suitable for use in the process and parts kit

摘要

A process for treating a sandstone formation, a fluid suitable for use in the process and part kit of the present invention relates to a process for treating a sandstone formation comprising introducing a fluid containing n, n-diacetic acid glutamic acid or its salt. (glda) and having a ph between 1 and 14 in formation. The invention furthermore relates to a fluid and parts kit suitable for use in the above process containing n, n-diacetic acid glutamic acid or its salt (glda), a corrosion inhibitor, a surfactant, and optionally a mutual solvent.