定量颗粒荧光技术在低渗透致密砂岩油藏研究中的应用——以鄂尔多斯盆地姬塬地区长4+5油层组为例  

Application of Quantitative Grain Fluorescence(QGF)Analysis in Low Permeability Sandstone Reservoirs——A Case Study of Chang4+5 Oil Formation in Ordos Basin

作　　者：高剑波 张厚和 庞雄奇[2,3] 陈冬霞[2,3] 王志欣[2,3] 姜振学[2,3] 王学东[4] 王银珍[5] 

机构地区：[1]中海石油研究总院,北京100027 [2]中国石油大学盆地与油藏研究中心 [3]中国石油大学油气资源与探测国家重点实验室,北京102249 [4]中石油塔里木油田分公司,新疆库尔勒841000 [5]中石油长庆油田分公司第二采油厂,甘肃庆城745100

出　　处：《石油天然气学报》2011年第10期1-5,164,共5页Journal of Oil and Gas Technology

基　　金：国家"973"规划项目(2011CB201102);国家自然科学基金项目(40802029)

摘　　要：对鄂尔多斯盆地姬塬地区延长组长4+5油层组近100个致密砂岩岩屑样品进行定量颗粒荧光(QGF/QGF-E)技术分析,结果表明,长4+5油层组致密砂岩的QGF-Index(颗粒荧光指数)和QGF-E(颗粒抽提物荧光指数)数值相对较低,且QGF-Index值和QGF-E值两者匹配关系复杂,显示低渗透致密砂岩薄互层成藏差异性明显;储层中低渗透致密砂泥岩薄互层油气微观运聚充注机理分为4类:排烃高峰期充分充注型,排烃高峰期欠充注型,排烃高峰期后充注型,未充注型。定量颗粒荧光技术是发现低渗透致密砂岩薄互层中含油层段的有效手段。About 100 tight sandstone core samples in Chang4+5 Oil Formation in Jiyuan Area of Ordos Basin were analyzed.The results show that QGF index and quantitative grain fluorescence extraction(QGF-E) in tight sandstone of Chang4+5 Oil Formation are relatively lower and the relationship between them is complex,it indicates that the differences in reservoir formation of low permeability thin interbed sandstone are obvious.It is divided into four types of microscopic filling mechanisms,such as peak expulsion full filling type,peak expulsion less filling type,post peak expulsion filling type,unfilling type.QGF is effective means of detecting oil-bearing segments in low permeability thin interbed.

关 键 词：QGF—E QGF 低渗透 致密砂岩 成藏 

分 类 号：P618.13[天文地球—矿床学]