Method and apparatus for local supply of a treatment fluid to a well portion

摘要

An apparatus is for supplying a treatment fluid to a well portion. A container is provided with a fluid chamber which is in closable fluid communication with at least one first outlet, the fluid chamber being defined by front and rear pistons. The front piston, in a starting position, forms a fluid barrier between the fluid chamber and the at least one first outlet, and the rear piston is provided with a rear piston rod projecting from a rear container end. A method is for supplying a treatment fluid to a well portion.