烃相态评价技术在薄差储层中的创新应用  

Innovative application of hydrocarbon spectrum graphices evaluation in thin and poor reservoirs

作　　者：陈沛 韩学彪 胡益涛 袁胜斌 王瑞科 CHEN Pei;HAN Xuebiao;HU Yitao;YUAN Shengbin;WANG Ruike(Zhanjiang Branch Company,CNOOC(China)Co.,Ltd.,Zhanjiang 524000,Guangdong,China;China-France Bohai Geoservices Co.,Ltd.,Tianjin 300452,China)

机构地区：[1]中海石油(中国)有限公司湛江分公司,广东湛江524000 [2]中法渤海地质服务有限公司,天津300452

出　　处：《石油地质与工程》2024年第5期1-6,共6页Petroleum Geology and Engineering

摘　　要：随着资源劣质化程度加剧,储层呈现薄、低渗、低丰度及强非均质性等特点,薄差层油气显示的发现成为随钻解释评价的难点。烃相态评价技术采用红外非散射吸收光谱检测地层中烃类物质组成及含量变化规律来定性定量快速评价储层的流体性质,该技术分析速度快(分析周期≤8 s)、采集参数维数多、分析谱图可视化程度高、效果直观,经实践检验对高钻速下的薄差层油气显示、储层非均质性及油层底部见水的评价效果显著,具有较好的现场推广价值。As the deterioration of resources intensifies,reservoirs exhibit characteristics such as thinness,low permeability,low abundance,and strong heterogeneity.The discovery of oil and gas display in thin and poor layers has become a difficult point in interpretation and evaluation while drilling.The hydrocarbon spectrum graphices evaluation uses infrared non-scattering absorption spectrum to detect the composition of hydrocarbons in the formation and the variation law of the content of hydrocarbons contained to qualitatively and quantitatively evaluate the fluid properties of the reservoir quickly.This technology has fast analysis speed(analysis cycle≤8 s),multiple acquisition parameter dimensions,high visualization degree of analysis spectrogram,and intuitive effect.It has been proven through practice to have significant evaluation effects on thin oil and gas displays under high drilling speed,reservoir heterogeneity and bottom water discovery of oil layers,and has good field promotion value.

关 键 词：烃相态评价技术 红外非散射吸收光谱 储层非均质性 薄差层油气显示 

分 类 号：TE132[石油与天然气工程—油气勘探]