Influenced by water injection and gravitational differentiation, abundance zone of remaining oil was formed vertically in middle-to-upper-parts of the reservoir beds and horizontally in the low porosity units on the plane and the area with poor injection-production. 受注水波及程度和重力分异作用的影响,储层内部垂向上形成中上部剩余油富集,而平面上低渗结构单元和注采不完善地区剩余油富集。
There are four manners of sea ( saline) water intrusion including plane, zonal, nervation or arborization and leaky of groundwater in study area. 研究区海(咸)水入侵主要有面状、带状、脉状或树枝状和越流等4种入侵方式。