The performance evaluation of nano-micron microsphere for profile control and displacement agent in low permeability reservoir

2016 International Conference on New Energy and Future Energy System

Zhang, J.H.^1 ; Wang, Y.N.^1 ; Wang, X.Y.^2 ; Zhuo, X.J.^1 ; Zhang, X.Q.^1 ; Liu, C.^1

Key Laboratory for Enhancing Oil/Gas Recovery, Ministry of Education, Northeast Petroleum University, Daqing, Heilongjiang

163318, China^1

Oil Recovery Plant No.1, Daqing Oilfield Corp. Ltd., Daqing, Heilongjiang

163318, China^2

关键词: Anti-scour performance;    Displacement agents;    Injection pressures;    Low permeability;    Low permeable heterogeneous reservoirs;    Performance evaluations;    Profile control;    Small fluctuation;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/40/1/012020/pdf
DOI  :  10.1088/1755-1315/40/1/012020

来源: IOP

【 摘 要 】

At present the waterflood efficiency is lower in most low permeable heterogeneous reservoirs, and the effect is poor using common polymer as profile control and displacement agent. As a new agent for profile control and displacement, the flow behavior of the nanomicron microsphere is evaluated in laboratory in this paper. The experimental result shows that it has well injectivity and flowability when flowing through the low permeability core. Because the nano-micron microsphere has a behavior of gradual expansion, it can be able to decrease permeability of porous medium very well. Especially in the process of subsequent water injection, the injection pressure increases firstly and then appears a small fluctuation declining, which shows that nano-micron microsphere solution has better antiscour performance and ability of gradual controlling and sealing.