关键词: 原油, 触变性流体, 泊肖叶流动, 渗流, 管道输送

Abstract: Since the crude oil in our country has the higher waxy content and has the outstanding thixotropic property,the study on the flow of the thixotropic fluid was very important for the petroleum industry in our country. In this paper, using the Moore's thixotropic fluid constitutive equations which was a non-elastic fluid model,two representive flows in petroleum industry were discussed. One was the laminar flow in the pipe (also called the Poiseuille flow). The analytic form of the relationship between the flow rate and the pressure gradient along the pipeline was obtained. It was very complicated and has the non-linear form. For the convenience in analyzing some problems in the pipeline transportation of the crude oil,an approximate formation of the analytic form was also provided. The other was the flow in porous media, which was the theoretical basis for analyzing the flow of the crude oil in the stratum. The equations on the flow in porous media was provided for the Moore's fluid,and the analytic solution on the plane radial flow in porous media was obtained,which the theoretical basis for accurately estimating the pressure distributions in the recover petroleum.

Key words: crude oil, thixotropic fluid, Poiseuille flow, flow in porous media, pipeline transportation