《天然气工业》1981年第三,四期连载了《套管方程》(简称《套管》)的文章。为了加深对问题的认识,使套管柱的设计趋于完善、合理,本文就《套管》一文提到的应力函数与极角的关系;拉梅公式的适用性,总体安全系数的设计以及作者所推荐的抗挤强度公式,提出以下粗浅看法,供讨论。 The third and fourth installments of the “Natural Gas Industry” 1981 serialized the article “Casing Equations” (“Casing”). In order to deepen the understanding of the problem and make the design of the casing string tend to be perfect and reasonable, the relationship between the stress function and the polar angle mentioned in the article “casing” is discussed in this paper. The applicability of the Lame formula, the design of the overall safety factor, The authors recommend the formula of crush strength, put forward the following superficial view for discussion.