Effective acid: a variety of acid blends for stimulation in difficult conditions

"Burenie i neft" 04/2017

S. Demachin, "Zirax" LLC
A. Shipilov
A. Mokrushin, "Polyex" JSC
A. Merkulov, "Zirax" LLC

The article presents an overview of acid blends for stimulation in difficult geological and technical conditions where simple acid blends are ineffective. The aspects of using acid treatments for watering wells are considered, a modified acid composition for removing the clay-polymer filter cake, a special blend for cleaning the fractures after fracturing from the residual gel is presented.