Suspended Oil Pipeline Stress Sensitivity Analysis

Abstract

Buried oil pipelines can traverse hundreds of kilometers of terrain with varied environmental and geotechnical conditions, such as earthquake prone areas. These areas experience ground subsidence, will lead to pipeline being suspended, the suspended segment of pipeline may result in pipeline rupture. Suspended oil pipeline stress safety usually has two contributing factors: the length of suspended segment and water buoyancy. In order to research the influence that the two contributing factors cause on the stress of suspended pipeline, it is needed to analyze suspended pipeline stress using analysis software CAESAR II. Research shows that, the buoyancy of water is more sensitive, and suspension pipe length of oil pipe is relatively small. It is provided with some reference results for pipeline safety management.