| 摘要 |
A hydraulic fluid delivery tool for morphing a tubular downhole and a method of deforming a tubular downhole. The tool is formed of a cylindrical body with an inner bore 30 and has spaced apart annular elastomer seal assemblies 22 which operate by application of a piston 26 against each elastomer 24 to create a seal against the tubular, the piston may move laterally within a recess 38 so that the external diameter of the piston is less than or equal to the outer diameter of the cylindrical body.. A first hydraulic fluid delivery line 60 delivers fluid at a first pressure to operate the pistons. A second hydraulic fluid delivery line 62 delivers fluid at a second pressure, lower than the first, to a location between the seals to morph the tubular and act on a second face 52 of each piston to assist in maintaining the seal. |
