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准噶尔盆地腹部为低孔、低渗、低阻油气层,储层非均质性严重,且具有低含油饱和度、高束缚水的特征;利用岩心核磁共振实验及核磁共振测井资料,建立了束缚流体和可动流体饱和度解释模型;在对储层的四性关系研究的基础上,建立了储层孔隙度、渗透率、含水饱和度等参数解释模型;针对准噶尔盆地腹部储层的特点,提出了油、水层识别的特征参数RSw/Swi,建立了油、水、干层的判别标准和储层的物性下限标准。
The abdomen of Junggar Basin is characterized by low porosity, low permeability and low resistivity oil and gas reservoirs, with serious reservoir heterogeneity and low oil saturation and high bound water. By using core NMR and NMR logging data, Bound fluid and mobile fluid saturation interpretation model. On the basis of the study on the quaternary relationship of reservoirs, the interpretation models of reservoir porosity, permeability and water saturation are established. According to the characteristics of the reservoir in the abdomen of Junggar Basin , The characteristic parameters RSw / Swi for oil and water layer identification were put forward, and the criterion for determining oil, water and dry layer and the lower limit of physical property of reservoir were established.