摘要
通过对辽河油田新开地区七口井５个油组不同孔渗条件的３２个砂岩储集层样品进行孔隙铸体薄片、电镜扫描、图像分析以及压汞研究，计算了表征储集层孔隙特征的参数７个，表征喉道特征的参数１３个，反映孔喉连通性的参数３个，反映孔隙结构复杂性的参数１个。综合分析这些参数认为，该地区储集层的孔隙个体大，喉道粗，分选好，孔喉连通程度较高，毛管压力曲线多具有低而宽缓的平台段；不同的油组，有一些差异，相比之下，沙一段Ⅰ、Ⅱ油组孔隙结构最好，Ⅲ、Ⅳ油组次之，沙三段Ⅲ油组最差。
Based on the studies of pore cast thin section, electric microscope scanning, image analysis and mercury injection test of 32 sandstone samples with different petrophysical properties from five oil sand layers in seven wells in Xinkai area of Liaohe oilfield, this paper calculated seven parameters of pore characterization, thirteen throat characterization, three pore throat connection and one characterizing complexity of pore structure. In all, the reservoirs in this area have large pore, wide throat, better sorting and pore throat connectivity. Capillary pressure curves mostly have low and wide and gentle platform segment. There are some differences in different oil sand layers, Ⅰand Ⅱ oil formations in Sha 1 member have the best pore structure, next is Ⅲand Ⅳ oil formations, and Ⅳ oil formation in Sha 3 member is the worst.
出处
《新疆石油地质》
CAS
CSCD
1998年第4期284-286,共3页
Xinjiang Petroleum Geology
关键词
辽河油田
储集层特征
孔隙结构
岩石孔隙
油气藏
Liaohe oilfield Reservoir characteristics Pore structure Parameter Rock pore Pore throat
