摘要
岩石是亲油、还是亲水,通过实验测量就可以确定。但地下不存在亲油的岩石,实验测量不出地下岩石的亲油特性,只能测量岩石亲水程度的强弱。地下岩石的亲水特性,为油气顺利运移至圈闭提供了保障,也为油藏压力的正常分布提供了保障。若岩石亲油,油气将散失在运移途中,从而无法聚集成藏。若油藏中的岩石亲油,地层压力的分布将出现不可思议的现象。因此,地下没有亲油的岩石,地下的岩石只能亲水。
Wettability of rocks can be determined through experimental measurements indoors.However there is no oil-wet rock underground.By experiment,the degree of water-wettability of rocks can only be measured rather than the oil-wet property of rocks.The water-wet property of rocks makes them possible that oil and gas migrate to traps successfully,and the pressure of reservoirs distributes normally.If the rock underground is oil-wet,oil and gas will scatter along the migration way and no hydrocarbon will be accumulated finally.In oil-wet reservoirs,the distribution of formation pressure will appear as incredible phenomenon.It is concluded that there is no oil-wet rock underground,and the rocks underground can only be water-wet in nature.
出处
《新疆石油地质》
CAS
CSCD
北大核心
2011年第2期197-198,共2页
Xinjiang Petroleum Geology
关键词
岩石
油藏
润湿性
亲油
亲水
压力分布
油气运移
rock
reservoir
wettability
oil-wet
water-wet
pressure distribution
oil-gas migration
