港西油田F 19区块砂体构型特征及模式研究  

Study on sandstone architecture and patterns of F 19 block in Gangxi Oilfield

作　　者：任瑞川 曾济楚 梁斌 REN Ruichuan;ZENG Jichu;LIANG Bin(No.5 Oil Production Plant of PrtroChina Dagang Oilfield Company,Tianjin 300280,China)

机构地区：[1]中国石油大港油田公司第五采油厂,天津市300280

出　　处：《录井工程》2022年第2期122-128,共7页Mud Logging Engineering

摘　　要：曲流河的频繁摆动使得砂体宽度逐渐增加,形成了由多个成因的砂体相互叠置而成的复合河道砂体。对于进入开发中后期密井网开发阶段的连片复合河道,必须从砂体的纵向、横向着手,开展砂体叠置、沉积微相等砂体构型特征研究,进一步把握剩余油分布规律,才能满足开发方案要求。选取F 19区块NmⅡ2-1为目的层位,以研究区测井资料为基础,结合沉积学、岩石学等方法,分析目标砂体沉积相、构型表征、砂体叠置关系等,建立砂体构型模式。通过单河道砂体研究逐步解剖复合河道砂体内部非均质特征,为港西油田储层内部构型研究和精细描述提供参考,进而指导油田注采井网完善,提高开发效果。The frequent swing of meandering river gradually increases the width of sand body,and leads to form multiple river channel sand bodies which appear due to the interactive superposition of sand bodies of multiple origins.For the continuous composite channel in the middle and late development stages of dense well pattern,it is obliged to carry out research on sandstone architecture of sand body superimposition and sedimentary microfacies from the vertical and horizontal perspectives and further grasp the distribution laws of remaining oil to meet the requirements of development plan.F 19 block NmⅡ2-1 is selected as the target layer,and based on the logging data of studied area,and in combination with the method of sedimentology and petrology to analyze the target sand body sedimentary facies,architecture and sand body superposition relationship,sand body architecture model is set up.Through the study of single channel sand body,the internal heterogeneity characteristics of compound channel sand body are gradually analyzed in detail.It provides a reference for the architecture and fine description of internal reservoir in Gangxi Oilfield,therefore guides the improvement of injection and production well pattern and improves the development effect.

关 键 词：油藏工程 储层构型 非均质性 砂体叠置 曲流河沉积 复合河道 

分 类 号：TE132.1[石油与天然气工程—油气勘探]