| 摘要 |
The present invention relates to a downhole tubular assembly (1) for sealing an opening (2) in a wall of a well tubular structure (3) in a borehole downhole. The downhole tubular assembly comprises an expandable tubular part having an inner face (6) and an unexpanded expandable tubular thickness (T5) in an unexpanded state, and a helical spring (7) having a helical inner diameter (OD7), a radial helical spring thickness and a helical outer diameter in an unexpanded state, wherein the helical spring is arranged inside the expandable tubular part and substantially concentric with the expandable tubular part, allowing for expansion of the expandable tubular part to abut the well tubular structure. Furthermore, the present invention relates to a method of sealing an opening in a wall of a well tubular structure in a borehole downhole. |
