Abstract: Several automatic solutions of the unsteadystate flow formula are rederived with the theory of groups in this paper.Though these equations are well-known and are very widely used in oilfield development practices,their derivation described in the paper is quite unique and applicable.

摘要： 本文用群论方法重新推导了不稳定渗流的几个自模拟解.这些解是油田开发实践中应用非常广泛的众所周知的公式,但仍不失本文的理论和方法意义.

关键词: 群论, 不稳定渗流, 自模拟解