Title:
WEDGE THREAD CONNECTION FOR TUBULAR GOODS
Document Type and Number:
WIPO Patent Application WO/2019/210021
Kind Code:
A8
Abstract:
A tubular connection includes a first joint of casing having an integral box end with an internal female wedge threaded zone having wedge threads disposed on a portion of the integral box end, and a second joint of casing having an integral pin end with an external male wedge threaded zone having wedge threads disposed on a portion of the integral pin end. The external male wedge threads engage with the internal female wedge threads. The second joint of casing has an internal diameter D1, and also includes an internal annular recess with an internal diameter D2. D2 is greater than D1, and the annular recess is disposed longitudinally along an inner surface of the second joint of casing. The annular recess is positioned radially adjacent to a portion of the external male threads disposed on a lower portion of the pin end.
Inventors:
BREEN JONATHAN ROBERT (US)
MUTIS RUEDA DAVID (US)
TATE ANDREW HENRY (US)
MUTIS RUEDA DAVID (US)
TATE ANDREW HENRY (US)
Application Number:
PCT/US2019/029047
Publication Date:
June 25, 2020
Filing Date:
April 25, 2019
Export Citation:
Assignee:
HYDRIL CO (US)
International Classes:
E21B17/042
Attorney, Agent or Firm:
RIPPAMONTI, Russell N. et al. (US)
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