陈堡油田陈3断块泰一段储层特征研究

Reservoir Characteristics of the First Member of Taizhou Formation in Chen 3 Block,Chenbao Oilfield

为了充分认识陈3断块储层特征,为后期储层地质建模和开发调整提供依据。综合利用钻井资料、岩心、铸体薄片、测井解释资料,对陈堡油田陈3断块泰一段储层的岩石学特征、物性特征、微观孔隙结构及成岩作用进行研究。结果表明,该套储层以长石岩屑质石英砂岩、石英砂岩为主;经历了压实作用、胶结作用、交代作用和溶蚀作用;孔隙类型是以次生粒间溶孔和部分原生孔隙组成的混合成因孔隙,喉道类型多样;物性较好,总体为中孔中渗型。此研究对陈3断块下一步精细开发具有重要意义。

In order to fully realize reservoir characteristics of Chen 3 Block and provide geological basis for reservoir modeling and development adustment,a study was macle on the lithologic features, physical property, microscopic pore structure, and diagenesis of reservoir of the 1st Member of Taizhou Formation in Chen 3 Block, Chenbao Oilffield. This study was based on detailed description and observation of drilling cores, and various analytical and measurement methods including identification and quantitative statistics of thin sections under microscope, image dissector system. This study shows that the main rock type of the reservoir is feldspar lithic quartz sandstone. The porosity and permeability are moderate. Pore structure is mainly composite pores composed by dissolution pores and primary pores. The main diagenesis of this area are compaction, cementation, metasomatism and dissolution.