论文部分内容阅读
针对中国东部某盆地D凹陷盐S块砂砾岩岩性复杂,非均质性强,岩石骨架对测井曲线的影响比常规砂岩储层突出的特点,在综合利用岩心、录井和常规测井资料的基础上,分析了S块沙四段的储层特征,建立了有效储层的判断标准,并对砂砾岩的有效储层进行了划分.研究结果表明,D凹陷S块有效储层的物性标准为:物性标准为孔隙度大于等于6%,渗透率大于等于0.85×10-3 um2;有效储层的电性标准为:声波时差大于等于197us/m,补偿密度小于等于2.57g/cm3,地层电阻率大于等于15Ω·m.核磁共振测井对于储集物性的反映具有直接性,充分利用核磁共振测井在分析储层的渗流能力和优势.
Aiming at the complex lithology and the heterogeneity of the salt S conglomerate in the D depression in eastern China, the influence of the rock skeleton on the logging curve is more prominent than the conventional sandstone reservoirs. In the comprehensive utilization of core, logging and conventional logging Based on the data, the reservoir characteristics of the fourth member of Shahejie Formation in S Block are analyzed, and the criteria of effective reservoir are established, and the effective reservoirs of sandstone and conglomerate are divided.The results show that the effective reservoir of S block in D depression The physical standard is: the porosity is 6% or greater and the permeability is greater than or equal to 0.85 × 10-3 um2; the electrical standard of effective reservoir is: acoustic time difference is greater than or equal to 197us / m, compensation density is less than or equal to 2.57g / cm3 , And the resistivity of formation is greater than or equal to 15Ω · m.MRT has the directness to reflect the reservoir property and makes full use of the seepage ability and advantage of NMR logging in reservoir analysis.