收稿日期: 2015-05-06
修回日期: 2015-08-31
网络出版日期: 2015-11-20
基金资助
国家重点基础研究发展规划(“973”)项目(编号:2011CB201104);国家科技重大专项(编号:2011ZX05000-01-06);甘肃省重点实验室专项(编号:1309RTSA041)联合资助.
Reservoir Evaluation of Glutenite Body of Baikouquan Formationin Mabei Area,NW Junggar Basin
Received date: 2015-05-06
Revised date: 2015-08-31
Online published: 2015-11-20
准噶尔盆地西北缘广泛发育扇三角洲沉积的砂砾岩储集体,针对玛北地区三叠系百口泉组砂砾岩储层非均质性强,低孔低渗特征,重点以核磁测井和成像测井为依据,结合常规测井、岩心观察、岩石薄片、扫描电镜及储层物性和试油资料分析,应用量化地质研究方法对砂砾岩储层进行分类评价。首先,结合试油资料和物性分析,识别砂砾岩有效储层物性下限,确立砂砾岩储层品质指数(RQI)评价标准;其次基于成像测井,根据核磁孔隙度、可动流体体积百分数、电阻率测井(RT)值及波阻抗建立核磁品质因子的定量评价标准;最后根据岩相和沉积相的关系,建立不同沉积微相发育的砂砾岩综合评价模板。该评价方法对砂砾岩储层的量化识别以及资源潜力评价均具有重要的意义。
邹妞妞,庞雷,史基安,陈鑫,欧阳敏,张大权 . 准噶尔盆地西北缘玛北地区百口泉组砂砾岩储层评价[J]. 天然气地球科学, 2015 , 26(S2) : 63 -72 . DOI: 10.11764/j.issn.1672-1926.2015.S2.0063
Glutenite reservoirs of fan delta sediments are widely developed in the Triassic Baikouquan Formation of Mabei slope,northwest Junggar Basin and are characterized by strong heterogeneity,low porosity and low permeability and great difficulty in their identification.The NMR logging and FMI logging data were taken as the major evidences,combined with conventional logging,core observation,thin section,SEM and the reservoir properties and oil test data analysis,classification evaluation of glutenite reservoir is quantitatively studied.Firstly,used the relationship between oil testing data and petrophysics and the distribution of oil show in cores,identify glutenite reservoir physical property limit parameter for effective reservoir,and set up glutenite reservoir quality index(RQI) for evaluation criterion.Secondly,based on FMI logging,nuclear magnetic porosity,volume percentage of mobile fluid,resistivity logging,wave impedance are used to establish quantitative evaluation criterion of NMR quality factor.Finally,according to the relationship of lithofacies and sedimentary facies,reservoir comprehensive evaluation of glutenite body is built.The evaluation method of glutenite reservoir is of great importance for quantitative identification and the evaluation resources potential.
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