Patent ID: 11953122
Assignee: HYDRIL COMPANY
Field: Civil engineering (Other fields)
Classification: CPC F  E | IPC F

Claim 0:
1. A connection comprising:
a first expandable tubular member comprising a first screw threadform defined by a first plurality of crests, a first plurality of roots, a first plurality of stab flanks, and a first plurality of load flanks, wherein the first plurality of crests and roots are substantially axial to the first expandable tubular member and the first plurality of stab and load flanks are substantially radial to the first expandable tubular member; and
a second expandable tubular member comprising a second screw threadform defined by a second plurality of crests, a second plurality of roots, a second plurality of stab flanks, and a second plurality of load flanks, wherein the second plurality of crests and roots are substantially axial to the second expandable tubular member and the second plurality of stab and load flanks are substantially radial to the second expandable tubular member,
wherein, upon engagement of the first threadform with the second threadform in a first position, the first expandable tubular member and the second expandable tubular member are configured to connect such that:
the first plurality of roots abuts the second plurality of crests,
the second plurality of roots abuts the first plurality of crests,
first clearances are formed between the first plurality of load flanks and the second plurality of load flanks, and
a first stab flank of the first plurality of stab flanks and a first load flank of the first plurality of load flanks define a first groove of the first expandable tubular member with a first clearance width, and a second stab flank of the first plurality of stab flanks and a second load flank of the first plurality of load flanks define a second groove of the first expandable tubular member with a second clearance width, and the first clearance width and the second clearance width are substantially similar.