Morphing Tubulars

A hydraulic fluid delivery tool for morphing a tubular downhole, the hydraulic fluid delivery tool comprising:

• a substantially cylindrical body having an inner bore therethrough;
• first and second seal assemblies arranged upon the cylindrical body at a pair of spaced apart locations in order to isolate an internal portion of a tubular between the seal assemblies at a desired location;
• each seal assembly comprising an annular elastomer and an annular piston, the piston arranged to compress the elastomer to create a seal between the cylindrical body and the tubular;
• a first fluid delivery line through a wall of the cylindrical body, the first fluid delivery line having at least one first input at a first end of the cylindrical body and at least two first outputs to deliver fluid at a first pressure to a first face of each piston so as to move the piston against the elastomer at each seal assembly;
• a second fluid delivery line through a wall of the cylindrical body, the second fluid delivery line having at least one second input at a first end of the cylindrical body and at least one second output to an outer surface of the cylindrical body at the desired location to deliver fluid at a second pressure to perform a morph at the location;
• and
• wherein the first pressure is greater than the second pressure and each piston includes a second face, the second face being exposed to the internal portion during compression of the elastomer so that fluid at the second pressure acts on the second face and assists in maintaining the seal.