<p>An expandable tubular connection includes a pin member and a box member. The pin member includes a pin thread formed on a small step and a large step and a first seal surface formed between the small step and the large step. The box member includes a box thread formed on a small step and a large step and a second seal surface formed between the small step and the large step. The pin thread and the box thread are wedge threads. Upon a selected make-up of the pin member with the box member a selected gap exists between the first seal surface and the second seal surface. The gap is selected such that, when plastically radially expanded by a selected amount, a seal is formed between at least a portion of the first seal surface and the second seal surface.</p>
申请公布号
MX2008001140(A)
申请公布日期
2008.04.21
申请号
MX20080001140
申请日期
2006.07.25
申请人
HYDRIL COMPANY.
发明人
SIVLEY, ROBERT, S., IV;WARD, GARY, W;REYNOLDS, HARRIS, A., JR.