More precise pipe wall calculations developed

Journal Article · Mon Apr 29 04:00:00 EDT 1996 · Oil and Gas Journal

OSTI ID:220629

Aynbinder, A; Taksa, B ^[1]

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1. Gulf Interstate Engineering, Houston, TX (United States)

Methods for determining pipeline wall have been developed which may reduce the required thickness by up to 7%, depending on steel grade and required design pressure. A more precise calculation for pipeline wall can yield significant savings since costs of cross country pipelines are greatly affected by the quantity of required steel. This quantity is a function of line pipe length and wall thickness. Existing methods for calculating wall thickness are debated among numerous engineers. The present discussion evaluates stress analysis of steel pipe resulting from both internal and external pressures. This analysis does not apply where external pressure may cause collapse. For the purpose of analysis, the pipe is modeled as a long cylindrical shell or annulus consisting of a material with nonlinear properties. The results of calculating the wall thickness or maximum design pressure using this method are compared with traditional linear formulation as detailed in ASME B31.4 and B31.8.

• OSTI ID: 220629
• Journal Information: Oil and Gas Journal, Journal Name: Oil and Gas Journal Journal Issue: 18 Vol. 94; ISSN OIGJAV; ISSN 0030-1388
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
03 NATURAL GAS
42 ENGINEERING
COMPUTER-AIDED DESIGN
MATERIALS TESTING
NATURAL GAS INDUSTRY
PETROLEUM INDUSTRY
PIPELINES
STEELS
STRESS ANALYSIS
ULTIMATE STRENGTH