砂砾岩储层有效厚度的划分与评价——以中国东部某盆地D凹陷S块沙四段为例  

Dividing and evaluating of sandy conglomerate reservoir——for example of SHA-4 segment of block S of D depression in China Eastern X B

作　　者：申本科[1] 欧朝阳[2] 史丹妮[1] 李军[1] 

机构地区：[1]中国石化石油勘探开发研究院,北京100083 [2]中国石油化工集团国际石油工程有限公司,北京100011

出　　处：《地球物理学进展》2015年第5期2212-2218,共7页Progress in Geophysics

摘　　要：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 lithology complexity, high heterogeneity of block S of D depression in china eastern x basin,the rock matrix of sandy conglomerate reservoir exert bigger affect to logging curve than conventional sand.On the basement of utilizing core,mud logging and routine wireline logging data,The characteristic of SHA-4segment of block S is analyzed,The judging criterion of net pay is established,the effective reservoir of conglomerate is divided.The study show the standard of the effective reservoir of SHA-4segment of block S,the porosity is more than or equal to 6%,the permeability is more than or equal to 0.85×10-3 um2,the electric standard of the effective reservoir is as fellow：the interval sonic time is more than or equal to 197us/m,the compensated density is less than or equal to 2.57g/cm3,the formation resistivity is more than or equal to 15 Ω·m.The nuclear magnetism resonance logging directly detect the property of reservoir,the penetrability ability and advantage is fully analyzed using nuclear magnetism resonance logging.

关 键 词：砂砾岩 储层 有效厚度 孔隙度 渗透率 核磁共振测井 

分 类 号：P631[天文地球—地质矿产勘探]