文东沙三中油藏净覆压与储层物性的关系

Relation between reservoir and net burden pressure in Wendongshasanzhong reservo irs

针对文东沙三中油藏不同类型的储层特征 ,分析了净覆压对储层的孔隙度、渗透率、岩石压缩系数和孔隙结构因数的影响 ,建立了净覆压与储层物性的关系式 .结果表明 :净覆压对储层的孔隙度、渗透率和岩石压缩系数具有明显的影响 ,对储层岩石孔隙结构影响较小 ;净覆压与孔隙度、渗透率、岩石压缩系数、结构因数关系的建立 ,可对类似油层的参数进行估算 ,弥补室内试验的局限性 。

This paper concludes the main characteristics of various ty pes of reservoirs in Wendong oilfield,clarify the views that net burden pressur e will influence the porosity, permeability, rock compacting factor and pore con figuration,establishes the formula between reservoir and net burden pressure at the same time. The results show that net burden pressure has obvious influence on porosity, permeability and rock compacting factor with little effect on pore configuration. The establishment of the relation between porosity, permeability and rock compacting factor can make up for the limitation of indoor experimentat ion, estimate some kinds of reservoir parameters and supply reference for reason able oil-filed development and adjustment.