摘要
高升油田的主力产层沙三段莲花油层由阵发性的浊积砂岩构成，储层的非均质性强．储层流体——石油的总体组成和分子组成同样存在明显的非均质性，它依赖于储集砂岩的孔隙度和渗透率以及它们所处的地层和构造位置．流体非均质性的空间分布反映了油田的聚集史，后期的蚀变作用使储层流体的非均质更加复杂化．
Lianhua oil-bearing horizons (ES3) IN Gaosheng oilfield consist of spasmodic turbidite sequences and the reservoir units show strong heterogeneities.The compositional heterogeneities exist in petroleum accumulations,both bulk and molecule, which depend on the porosity and permeability of the reservoir sandstones and on their stratigraphic and structural position.The spatial distribution of the compositional heterogeneities,which became complicated because of subsequent in-reservoir biodegradation,is interpreted to reflect the accumulation history of the field.Recognition of the compositional heterogeneities within the oil column of individual field may have important implication for improving petroleum production.
出处
《地球科学（中国地质大学学报）》
EI
CAS
CSCD
北大核心
1996年第1期73-78,共6页
Earth Science-Journal of China University of Geosciences
关键词
油田
储集层
流体
非均质性
reservoir geochemistry,compositional heterogeneities,Lianhua oil-bearing horizons,thermal maturity,biodegradation.
