Determining methods for basic parameters of deepwater drilling riser single

作者：Chang Yuan Jiang^*; Ju Shao Dong; Chen Guo Ming; Xu Liang Bin; Yin Zhi Ming; Zhao Li Hong

来源：Journal of China University of Petroleum(Edition of Natural Science), 2012, 36(1): 117-121.

DOI：10.3969/j.issn.1673-5005.2012.01.020

• Auxiliary lines
• Axial stress
• Basic parameters
• Buoyancy modules
• Collapse pressure
• Deepwater
• Deepwater drilling riser
• Determination methods
• Determining method
• Equivalent stress
• Outside diameter
• Riser
• Riser systems
• Stress criterion
• Water depth

A method for determining the basic parameters of deepwater drilling riser single was proposed, which includes determination method of parameters for main pipe and auxiliary lines, buoyancy modules, and classification of the riser connector. The results show that the circumstantial stress, axial stress and collapse pressure criterion can all be used to determine the dimension of the main pipe. However, the results based on the circumstantial stress criterion are more conservative, and equivalent stress criterion can be used to determine the parameters of the peripheral lines of the joint. Depending on water depth, the outside diameter and density of the buoyancy modules should be determined reasonably, and the classification of the riser connector should be checked in different load cases according to API codes. The riser joints with the outside diameter of 0.533 4 m and inside diameter of 0.48895 m can be operated in water depth of 1.830 km, and the fill valve is not necessary to the riser system. The design of peripheral lines and riser clamps meets the requirement of strength and stability. Three kinds of buoyancy modules meet the needs to the water depth, and matching E-class riser connector meets the requirements.

• 出版日期2012
• 单位中国石油大学（华东）