Threaded connection for drill pipes
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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N/A
Issued Date -
Apr 6, 2006
app pub date -
Dec 7, 2004
filing date -
Sep 28, 2004
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A pin and box of a threaded connection are provided with interference fit metal-to-metal seals on both sides of a reverse thread section. The pin nose and box nose respectively are received in undercuts in the box shoulder and nose shoulder. The pin nose and box nose engage the respective shoulders at the same time on make-up. The thread section has a low profile, and the pin and box are kept short to reduce bending stresses.
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