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US 10,648,603 B2Granted
Branch fitting for reducing stress caused by acoustic induced vibration
AssigneeBechtel Oil, Gas & Chemicals, Inc.
InventorsIsmat Eljaouhari, Yuqing Liu, Philip Diwakar, Dan Lin, Ajay Prakash
Life of this patent
Estimating the term…
Abstract
A contoured branch fitting for reducing stress in a header pipe caused by acoustic induced vibration that includes a maximum width, a maximum length, a thickness that is greater along the maximum length and a constant radius between the branch connection and the header connection.
Claims15
A branch fitting, which comprises:
- a maximum width (MW);
- a maximum length (ML), wherein the ML is at least 1.10 times longer than the MW;
- a maximum height (MH);
- a constant inside radius (BRi) from a branch connection for the branch fitting to a header connection for the branch fitting;
- and
- a constant outside radius (BRo) from the branch connection to the header connection.
3 more elements
A method for reducing stress in a header pipe caused by acoustic induced vibration, which comprises:
- transmitting a fluid through the header pipe connected to a branch fitting, the branch fitting including a constant inside radius and a constant outside radius from a branch connection for the branch fitting to a header connection for the branch fitting;
- and
- maintaining a sound power level of at least 168 dB in the header pipe, wherein a ratio of an inside diameter of the header pipe and a thickness of the header pipe is at least 30.
Dependencies are inferred from the claim text.