气体–原油分子扩散系数实验研究进展.pdf

Hans Journal of Chemical Engineering and Technology 化学工程与技术, 2013, 3, 49-56 doi:10.12677/hjcet.2013.32009 Published Online March 2013 (/journal/hjcet.html) Experimental Study of Molecule Diffusion Coefficient for Gas-Oil System 1 2 1 3 4 Anping Ye , Xiaoying Shen , Ping Guo , Shaoping Wang , Zhongzhao Cheng 1State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 2 State Intellectual Property Office, Beijing 3No.2 Oil Production Plant, PetroChina Changqing Oilfield Company, Qingyang 4Xi’an Changqing Technology Engineering Company Ltd., Xi’an Email: 156830216@ Received: Jan. 4th th th , 2013; revised: Jan. 30 , 2013; accepted: Feb. 10 , 2013 Abstract: During the process of gas flooding, when the gas comes in contact with oil, the mass transfer phenomenon occurs. It change properties and improve flow ability of oil fluid to enhance oil recovery. Diffusion coefficient of gas-oil systems is the most important factor to determine the transfer rate of species from one phase to another. The conven- tional experimental methods used in diffusion coefficient determination are classified into direct and indirect, and the later is used greatly. However, the determination of diffision coefficient requires two important decisions: 1) to define a reliable experimental method; and 2) to choose accurate models for data interpretation. The present paper is aimed at reviewing experimental and modeling studies on diffusion coefficient for gas-oil system, to provide some reference for the future r