Patent attributes
A downhole patch setting tool for expanding a patch over a distance of 10+ metres in a well, has a top and a tool body having a bore, an outer face, a first end and a second end, the second end being arranged closer to the top than the first end, the bore at least extending from a first bladder assembly to a second bladder assembly, an expandable metal patch, the first bladder assembly and the second bladder assembly creating an annular space therebetween, the expandable metal patch having an inner diameter in an unexpanded condition, the tool body having a first and second openings, providing fluid communication between the bore and the first bladder assembly and the second bladder assembly to allow pressurised fluid to expand the bladder assemblies, and a valve arrange to control passage of the pressurised fluid from the bore to the annular space.
