摘要
通过对鄂尔多斯盆地安塞油田长6储层大量样品进行薄片、压汞、扫描电镜等测试分析,综合多方面资料,剖析研究区储层特征,并对储层孔渗特征控制因素进行分析。结果表明,研究区储层为中孔特低渗储层,具有矿物成熟度低而结构成熟度高的特点,孔渗相关性较差,储层特征复杂。沉积相带、碎屑和填隙物组成以及后期溶蚀作用是影响其孔渗特性主要因素,裂缝总体上不太发育,在部分区域影响较为显著。
To make the analysis on characteristics and controlling factors of poroperm characteristics of Chang 6 reservoirs in Wangyao area of Ansai oilfield,Ordos Basin.Characteristics of reservoirs are comprehensively analyzed so as to make out the controlling factors of poroperm characteristics,which should be based on the analysis of the abundant thin section, mercury penetration and SEM data in the study area.The reservoirs in the study area are characterized by medium porosity and low permeability,low compositional maturity and high textural maturity.The relationship between porosity and permeability is bad and reservoir characteristics are complex. The major factors affecting poroperm characteristics are the sedimentary facies zones,detritus and its filling com- ponents as well as after - corrosion,the fracture development has obvious effect in some areas.
出处
《石油地质与工程》
CAS
2011年第4期25-28,5-6,共4页
Petroleum Geology and Engineering
关键词
安塞油田
王窑区
长6储层
储层特征
孔渗特性控制因素
Ansai oilfield
Wangyao area
Chang 6 reservoirs
reservoir characteristic
controlling factors of poroperm characteristics
