Abstract: Referring to literature(1), this paper deals with the unsteady-state flow of slightly compressible fluid in naturally fractured reservoirs, and after analysing factors affecting the flow behavior, gives some important characteristics pertaining to such a state. Two methods of analysing well test data for the naturally fractured reservoir have been proposed in the latter part of the paper. They have been used in the North China oil field with satisfactory results.

摘要： 根据油田开发后取得的动态资料,进一步研究储层的性质和参数,对于核实静态资料、调整开发部署和改善开发效果,是十分重要的。现场测得的压力恢复曲线和压力降落曲线,比较系统地反映了储层的流动阻力、弹性容积、边界影响和油井完善状况等特点,因而成为研究油层和油井的有力工具。