摘要
SM地区嘉陵江组是川东北地区重要的天然气开发层系,但是其地质、地球物理特征较复杂,不仅发育了一套含有灰岩、白云岩和膏岩的复杂岩层,而且具有碳酸盐岩储层埋藏深、储层厚度薄、地震响应不明显、非均质性强等特点。针对此类地质条件,综合应用正演模拟技术、地震属性分析、波阻抗反演和孔隙度反演的技术对SM地区嘉陵江组碳酸盐储层进行了分析研究,认为该目标段薄储层可识别厚度为14 m,小于14 m的薄储层无法识别。
Jialingjiang formation is an important gas layer series of development in SM area,but its geological and geophysical characteristics is complex,and it not only develops a set containing limestone,dolomite,gypsum rock,but also has carbonate reservoir with deep burial,thin reservoir thickness,inconspicuous seismic response,and strong heterogeneity.Based on such geological condition in SM,the study on the carbonate reservoir of Jialingjiang Formation has applied the technique of forward modeling,seismic attribute analysis,wave impedance inversion and porosity inversion.The results show that the thin reservoir with less than 14m can not be identified.At the same time,a set of thin reservoir prediction methods suitable for the local area is summarized.Drilling results show that the method can not only be used for thin reservoir of Jialingjiang formation prediction in Puguang gas field,but also provide an important reference for other similar geological conditions of the basin oil and gas exploration.
作者
陈琦
刘全稳
王身建
吕一
CHEN Qi;LIU Quanwen;WANG Shenjian;LU Yi(College of Petroleum Engineering, Guangdong University of Petrochemical Technology, Maoming 525000, China)
出处
《广东石油化工学院学报》
2020年第3期6-10,共5页
Journal of Guangdong University of Petrochemical Technology
基金
广东省教育厅青年创新人才类项目(2018KQNCX162)
茂名市科技计划项目(2019424)
广东石油化工学院科研基金人才引进项目(2017rc23,650127)。
关键词
碳酸盐岩
储层预测
薄储层
嘉陵江组
carbonate rock
reservoir prediction
thin reservoirs
Jialingjiang formation
