摘要
东营凹陷北部陡坡带永安镇地区永１砾岩体是早第三纪沙四时期形成的以砂、砾岩为主的扇三角洲沉积体，储集岩石成分成熟度较低，多为双模态或复模态结构。对影响储层物性的主要成岩作用进行了描述，分析了该砾岩体储层的孔隙结构特征。这种砾岩体的储集岩的孔隙类型多样，孔隙结构复杂，总体表现为孔隙度较低，孔隙连通性较差，渗透率偏低，以低孔隙度、低渗透率储层类型为主。
Yong 1 conglomerate body in Yonganzhen area of Shengli oilfield is a fan delta reservoir which is the forth member of Shahejie formation. Sandstone and conglomerate are the main rock types. The reservoir is of the lithological characteristics of low composition maturity and bimodal or polymodal structures. The diagenesises influencing the performance of the reservoir were described, and the features of pore structures were analyzed. The reservoir of Yong 1 conglomerate body possesses sorts of pore types, complex pore structure, low porosity, bad communication of pores and low permeability. The main reservoir feature lies in the low porosity and low permeability.
出处
《石油大学学报（自然科学版）》
CSCD
1999年第1期13-16,共4页
Journal of the University of Petroleum,China(Edition of Natural Science)
关键词
砾岩
成岩作用
孔隙结构
储集层
低渗透率
Yonganzhen area
conglomerate
diagenesis
pore structure
low permeability reservoir
