基于构造-岩性控制的致密储层评价标准构建  

Evaluation criteria of tight reservoir based on structure-lithology control

作　　者：赵建 吴见萌 Zhao Jian;Wu Jianmeng(Logging Branch,Southwest Petroleum Engineering Co.,Ltd.,Sinopec,Chengdu 610100,China)

机构地区：[1]中石化西南石油工程有限公司测井分公司,四川成都610100

出　　处：《石化技术》2016年第3期119-120,共2页Petrochemical Industry Technology

摘　　要：新场须四各亚段沉积微相差异较大,致使各亚段储层岩性、储集类型和电性特征不同。综合分析认为,岩性影响、构造影响、孔隙结构影响是制约须四段储层解释符合率的主要影响因素,针对这些影响因素,基于构造-岩性建立了不同岩性储层气水评价标准,并以测试层为样本,对不同岩性储层的T_2气水弛豫特征进行分析,确定了粗中砂岩、细粉砂岩、钙屑砂岩、灰质砾岩储层的核磁共振测井T_2气水弛豫标准,该方法技术适用性强,大幅度提高了新场须四致密储层的解释符合率。The various sedimentary microfacies in Xinchangxu-IV reservoir lead to different electrical properties,lithology,and reservoir type in sub reservoirs.The research indicates that lithology,structure and porosity are the main factors that impact theinterpretation coincidence rate in this reservoir.Based on these factors,an evaluation criteria for gas-water of reservoir is establishedbased on structure-lithology to analyze the T2 gas-water relaxation in different reservoirs with testing layer as sample.The NMRlogging T2 gas-water relaxation criteria are made on fine,medium,calcarenaceous and conglomerate sandstone respectively,whichcan be used to improve the interpretation coincidence rate in this tight reservoir.

关 键 词：新场须四 构造-岩性 评价标准 核磁共振 气水弛豫 致密储层 

分 类 号：P618.13[天文地球—矿床学]