The probability distributions for load and capacity are developed based on assumed field load histories and actual test results on casing performance,and one specific kind of casing is designed by it.

• 并在此基础上初步建立了基于现场载荷过程和套管性能实际测验结果之上的载荷和容量概率分布，并对一种套管进行了可靠性设计计算。