摘要
文昌HDB油田ZH1-2L油组能量不足,采油速度及采出程度低,需要进行储层非均质性分析。ZH1-2L油组以粉、细砂岩和泥质粉、细砂岩为主,砂岩与泥岩多呈薄互层,为中-高孔中低渗储层,储层非均质性严重,储层内部泥质夹层发育,从平面、层内、微观三方面对ZH1-2L油组储层非均质性进行分析,得出该油组砂体厚度稳定分布,平面较均质,储层层内为非均质—较均质型,运用岩心实验分析中铸体薄片分析法和毛管压力曲线法,得出ZH1-2L油组储层微观非均质性强,微观孔喉结构发育差。
As the energy in ZH1-2L oil group of Wenchang HDB oilfield is insufficient and the production speed and recovery degree are both low,the analysis on reservoir heterogeneity needs to be carried out.As for ZH1-2L oil group,it is mainly of siltstone,fine sandstone and argillaceous siltstone and fine sandstone,interbedded with sandstone and mudstone.It belongs to medium-high porosity and low permeability reservoir,the reservoir heterogeneity is serious,and the argillaceous interlayer in internal reservoir is developed.From three aspects,the reservoir heterogeneity analysis has been carried out.The results indicate the sand body thickness has a stable distribution and the plane is relatively homogeneous.As for intra-formational heterogeneity,it belongs to heterogeous-homogeneous model.By using the casting thin sections method in core experimental analysis and the capillary pressure curve method,the reservoir in ZH1-2L group is proved to have strong the microscopicheterogeneity and poor micro pore throat structure development.
出处
《石油地质与工程》
CAS
2016年第3期88-91,149,共4页
Petroleum Geology and Engineering
关键词
文昌HDB油田
隔夹层展布
平面非均质性
层内非均质性
微观非均质性
Wenchang HDB oilfield
interlayer insulation distribution
plane heterogeneity
intra-formational heterogeneity
microscopic heterogeneity
