塔河油田块状底水砂岩油藏开发特征及挖潜对策  

Development Characteristics and Potential Tapping Strategies of Massive Sandstone Reservoirs With Bottom Water in Tahe Oilfield

作　　者：刘丽娜[1] 曹飞 刘学利[1] 谭涛[1] 郑小杰[1] 刘蕊[1] LIU Lina;CAO Fei;LIU Xueli;TAN Tao;ZHENG Xiaojie;LIU Rui(Research Institute of Exploration and Development,Northwest Oilfield Company,Sinopec,Urumqi,Xinjiang 830011,China)

机构地区：[1]中国石化西北油田分公司勘探开发研究院,乌鲁木齐830011

出　　处：《新疆石油地质》2023年第4期450-455,共6页Xinjiang Petroleum Geology

基　　金：中国石化科技攻关项目(P19026-1)。

摘　　要：塔河油田块状底水砂岩油藏油层较薄,油井投产后见水、含水率上升和产量递减皆快,稳产难度大。通过对油藏开发特征分析,对油井的含水率上升模式进行分类,确定其剩余油分布特点及其主要影响因素。结果表明,影响底水油藏剩余油分布的主要因素是构造、夹层、储集层非均质性和开发方式。针对底水油藏高含水期剩余油分布特点,提出了改善开发效果的有效挖潜对策:油井提控液调流向、天然气驱及CO_(2)驱。数值模拟与现场实践均取得了较好的效果,可供同类油藏开发借鉴。The massive sandstone reservoirs with bottom water in the Tahe oilfield are characterized by relatively thin oil layers.After oil wells are put into production,water breakthrough,water⁃cut rise,and production decline occur rapidly,posing challenges for stable produc⁃tion.Through the analysis of reservoir development characteristics,the water⁃cut rise patterns of wells were classified,and the remaining oil distribution and its influencing factors were determined.The results indicate that the main factors affecting the distribution of remaining oil in bottom⁃water reservoirs are structure,interlayer,reservoir heterogeneity and development methods.Based on the distribution of remain⁃ing oil in bottom⁃water reservoirs in the high water⁃cut period,effective potential tapping strategies were proposed to improve development efficiency,including flow adjustment by controlling fluid,natural gas flooding,and CO_(2) flooding.Numerical simulations and field practices have demonstrated satisfactory results of these strategies,which provide valuable references for the development of similar reservoirs.

关 键 词：塔河油田 块状砂岩油藏 底水油藏 开发特征 含水率上升模式 剩余油分布 挖潜对策 

分 类 号：TE343[石油与天然气工程—油气田开发工程]