塔河油田AT1井区油气藏类型研究  

Study on Oil and Gas Reservoir Types of AT1 Well Block in Tahe Oilfield,Tarim Basin

作　　者：刘丽娜[1] 马勇[1] 刘洁[1] 马雪健 张春福[1] 印婷[1] 

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》2015年第5期560-564,共5页Xinjiang Petroleum Geology

摘　　要：塔河油田AT1井区中三叠统阿克库勒组油气藏为低幅度构造与断层控制的底水油气藏,储集层流体性质较为复杂。开发初期,根据PVT资料,认为AT1井区为凝析气藏。随着开发的深入,大部分气井均出现气油比大幅下降的现象,同时在见水初期出现产油量增加、产气量明显下降的油侵特征,开发效果明显变差。应用油气藏高压物性、流体性质、石油天然气组分分析、生产特征分析、储量系数等资料,判断AT1井区油气藏类型为带凝析气顶的油藏,分析了AT1井区的开发效果,提出了高含水期的开发对策,对同类油气藏的类型判定与开发具有一定的借鉴意义。The Akekule reservoir of Middle Triassic in AT1 well block in Tahe oilfield is a bottom-water reservoir with complex fluid prop-erties controlled by faults and low amplitude structure. At the initial stage of development,the AT1 well block was identified as a conden-sate gas pool by means of PVT data. With the deepening of the development,most of the gas wells were in big drop in gas-oil ratio. And atthe beginning of water breakthrough,oil cutting appeared like oil production rise and gas production decline,resulting in poor exploitationeffect. By means of the data of PVT,fluid property,oil and gas component analysis,production performance and reserves coefficient,thispaper draws a conclusion that the reservoir type in AT1 well block belongs to an oil reservoir with condensate gas cap,analyzes the effect ofAT1 well block development and proposes the countermeasures for this area in high water-cut state,which can be available for reference fortype discrimination and development of similar reservoirs.

关 键 词：塔里木盆地 塔河油田 AT1井区 流体性质 油气藏类型 开发方式 开发效果 

分 类 号：TE112.42[石油与天然气工程—油气勘探]