Experimental Study on Wax Deposition of Gas Emulsion during Intermittent Flow

4th International Conference on Energy Equipment Science and Engineering

Quan, Qing^1 ; Ran, Wen^2 ; Ruan, Chaoyu^3 ; Wang, Shouxi^1 ; Ren, Liang^4 ; Gong, Jing^4

College of Petroleum Engineering, Xi'an Shiyou University, Xi'an, Shaanxi Province

710065, China^1

Shaanxi Application of Physical and Chemistry Institute, Xi'an Shaanxi Province

710065, China^2

China Waterborne Transport Research Institute, Beijing

100088, China^3

Beijing Key Laboratory of Urban Oil and Gas Distribution Technology, China University of Petroleum, Beijing

102249, China^4

关键词: Deposit formation;    Deposit thickness;    Flow loops;    Gelation point;    Increasing viscosity;    Intermittent flows;    Superficial velocity;    Wax deposition;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/242/2/022021/pdf
DOI  :  10.1088/1755-1315/242/2/022021

来源: IOP

【 摘 要 】

Wax deposition of the gas-emulsion in intermittent flow with different water cuts and gas/emulsion superficial velocity in a flow-loop was investigated by crude oil, simulated oil, gas, and water as the experimental medium. In both the crude oil and simulated oil systems, the deposit was distributed around the pipe wall, and the deposit thickness decreased initially and then increased. These changes were induced by the increasing water cut resulting from the increasing viscosity and gelation point of the emulsions. The experimental results revealed that increasing gas and emulsion superficial velocity both have a negative effect on deposit formation.