The wettability alteration on rock surfaces induced by asphaltine adsorption and the plugging of pore throats caused by asphaltine deposition are the important mechanisms of formation damage.

• 原油沥青质吸附引起的油藏岩石润湿性改变和沥青质沉积对储层孔喉的堵塞是造成储层损害、导致油井产能下降的重要机理之一。