New findings on leak resistance of API 8-Round connectors

Conference · Wed Jan 01 04:00:00 EST 1986

OSTI ID:6974544

Schwind, B E; Wooley, G R

In response to high interest concerning leak resistance in API 8-Round connectors, the API funded projects that have identified and assessed parameters affecting leak. Among these parameters are make-up, diameter, grade, and combined loads. Additional turns during make-up was found to increase leak resistance. Investigations concerning diameter and grade identified larger diameter and higher grade connectors as most susceptible to low leak pressures when compared to pipe body ratings. Finally, combined loads were found to be crucial to leak. Tension lowers the leak resistance of 8-Round connectors in a manner that renders hydrotesting insufficient for defining leak in some service conditions.

• Research Organization: Enertech Engineering and Research Co.
• OSTI ID: 6974544
• Report Number(s): CONF-861080-
• Country of Publication: United States
• Language: English

Related Subjects

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DIMENSIONS
DRILL PIPES
DRILLING EQUIPMENT
DYNAMIC LOADS
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OIL WELLS
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PRESSURE EFFECTS
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TENSILE PROPERTIES
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