准噶尔盆地玛湖坳陷侏罗系储层

通过对玛湖坳陷侏罗系储层特征的研究,表明该区储层主要为辫状河三角洲、河流相砂体。孔隙以溶蚀孔隙、原生粒间孔隙和残余粒间孔隙为主。储集物性变化大,属中-低孔、中-低渗储层。储集性主要受成岩压实和塑性岩屑影响。最后,结合该地区评价标准,将层序D和B划分为较好储层,层序C和A为较差储层。 

Jurassic reservoir of Ma lake depression in Jungger basin,Xinjiang

The character of Ma lake depression Jurassic reservoir shows that the main reservoir composed of delta and river sand bodies of braided river.The pore styles of reservoir include erosional pores,protogenesis intergranular pores and relict intergranular pores.The physical properties of reservoir pore spaces are great variant,belong to middle low pore and filter bed.The diagenetic compaction and plastic rock debris greatly influence its reservoir property.Finally, according to the evaluation standard of the region,D and B strata sequences of the reservoirs are classified as better sequence,but C and A strata sequences are classified as worse sequences.