1·Asphaltene content increased, the deterioration of oil quality.
沥青质含量增高时，原油质量变坏。
2·The kinetic viscosity, carbon residue and the content of asphaltene of the heavy oil were investigated under function of ultrasonic wave.
讨论了超声波作用对重油的粘度、残炭和沥青质含量的影响。
3·The second is about wettability measurement of quartz sands due to adsorption of asphaltene and resin.
第二部分是研究由于沥青质和胶质在石英砂上的吸附，石英砂润湿性发生改变后的润湿性测定。
4·The precipitation mechanisms of the glial, wax and asphaltene and impact factors have been definited through a large number of experimental studies.
通过大量的实验研究，明确了塔河油田轻质油胶质、沥青质及蜡析出的机理及其影响因素。
5·However, gas injection for enhancing oil recovery may cause asphaltene deposit, which seriously influences production.
然而，注气提高采收率有可能引起沥青质沉积，从而严重地影响生产。