摘要
The performances of the formation damage are permeability decreasing, skin factor increasing and productivity index decreasing. Generally, formation damage is not reversible. This phenomenon is known as reverse funnel effect （Porter 1989）. People have been trying to find effective ways to remedy the reservoir damage.
The performances of the formation damage are permeability decreasing, skin factor increasing and productivity index decreasing. Generally, formation damage is not reversible. This phenomenon is known as reverse funnel effect （Porter 1989）. People have been trying to find effective ways to remedy the reservoir damage.
基金
funded by Canada CMG Foundation
Development Program of China Scholarship Counci
