Patent ID: 7380840

Claim:
An expandable tubular connection comprising: a pin member having a pin thread, wherein the pin thread comprises a pin thread crest, a pin load flank and a pin stab flank, and a pin thread root; a box member having a box thread, wherein the box thread comprises a box thread crest, a box load flank and a box stab flank, and a box thread root, wherein the pin thread and the box thread are wedge threads, such that upon selected make-up of the pin member with the box member: a selected gap exists between the pin thread crest and the box thread root and the pin thread root and the box thread crest; and the load and stab flanks of the pin and box threads are in interference; wherein upon plastic radial expansion of the selectively made-up tubular connection by a selected percentage, the selected gap becomes a selected interference; and wherein the selected interference results in a thread seal over substantially all of the expanded tubular connection.