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研究了地层的蠕变特性对油水井套管载荷的影响。首先将套管看作纯弹性,套管的蠕变载荷从零开始,随时间增长而增大,在经过充分时间后,它趋于一个稳定的即最大的载荷分布,这个载荷分布在数值上不超过原场最大水平主应力值的2倍。对蠕变地层中套管的选用有重要的参考价值。
The effect of formation creep characteristics on casing load of oil and water wells was studied. First, the sleeve is considered purely elastic, the creep load of the sleeve increases from zero and increases with time, and after a sufficient time it tends to be a stable or maximum load distribution that is numerically Not more than 2 times the maximum level of the original main stress. The selection of casing in creep formation has important reference value.